[User] Show me the number of game servers in each region and the average maximum number of players they can accommodate. Exclude any servers that are currently offline.

[Assistant] SELECT region, COUNT(server_id) AS server_count, AVG(max_players) AS average_max_players FROM gaming_technology.servers WHERE status != 'offline' GROUP BY region;

[User] Please filter the results to only include regions that have more than 5 active servers.

[Assistant] SELECT region, COUNT(server_id) AS server_count, AVG(max_players) AS average_max_players FROM gaming_technology.servers WHERE status != 'offline' GROUP BY region HAVING COUNT(server_id) > 5;

[User] Can you also include the total number of current players across all active servers in each of those regions?

[Assistant] SELECT region, COUNT(server_id) AS server_count, AVG(max_players) AS average_max_players, SUM(current_players) AS total_current_players FROM gaming_technology.servers WHERE status != 'offline' GROUP BY region HAVING COUNT(server_id) > 5;

[User] Order the final results by the total number of current players in descending order.

[Assistant] SELECT region, COUNT(server_id) AS server_count, AVG(max_players) AS average_max_players, SUM(current_players) AS total_current_players FROM gaming_technology.servers WHERE status != 'offline' GROUP BY region HAVING COUNT(server_id) > 5 ORDER BY total_current_players DESC;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE gaming_technology.players (
    player_id uuid NOT NULL DEFAULT gen_random_uuid(), -- unique identifier for the player
    username character varying(100) NOT NULL UNIQUE, -- player's chosen display name
    email character varying(255) NOT NULL UNIQUE, -- player's email address for login/recovery
    password_hash text NOT NULL, -- securely hashed password
    registration_date timestamp with time zone NOT NULL DEFAULT CURRENT_TIMESTAMP, -- when the player account was created
    last_login timestamp with time zone, -- timestamp of the last successful login
    country_code character(2), -- player's country (ISO 3166-1 alpha-2)
    status character varying(20) NOT NULL DEFAULT 'active', -- account status (e.g., active, banned, suspended)
    profile_data jsonb, -- flexible field for avatar url, bio, preferences etc.
    PRIMARY KEY (player_id)
)
CREATE TABLE gaming_technology.games (
    game_id uuid NOT NULL DEFAULT gen_random_uuid(), -- unique identifier for the game
    title character varying(200) NOT NULL, -- official title of the game
    developer_id uuid NOT NULL, -- FK linking to the developers table
    publisher_id uuid, -- FK linking to a potential publishers table (optional)
    genre character varying(100), -- primary genre (e.g., RPG, FPS, Strategy)
    release_date date, -- official release date
    description text, -- short description or synopsis of the game
    platform character varying(50) NOT NULL, -- primary platform (e.g., PC, PlayStation 5, Xbox Series X, Mobile)
    engine character varying(100), -- game engine used (e.g., Unreal Engine 5, Unity)
    website character varying(255), -- official website URL
    PRIMARY KEY (game_id)
    -- FOREIGN KEY (developer_id) REFERENCES gaming_technology.developers(developer_id) -- Example FK constraint
)
CREATE TABLE gaming_technology.game_sessions (
    session_id uuid NOT NULL DEFAULT gen_random_uuid(), -- unique identifier for the game session
    player_id uuid NOT NULL, -- FK linking to the players table
    game_id uuid NOT NULL, -- FK linking to the games table
    server_id uuid, -- FK linking to the servers table (nullable for single-player)
    start_time timestamp with time zone NOT NULL DEFAULT CURRENT_TIMESTAMP, -- when the session began
    end_time timestamp with time zone, -- when the session ended (null if ongoing)
    duration_seconds integer, -- calculated duration of the session in seconds
    score integer, -- player's score for the session, if applicable
    session_data jsonb, -- flexible field for session-specific info (e.g., map played, character used)
    PRIMARY KEY (session_id)
    -- FOREIGN KEY (player_id) REFERENCES gaming_technology.players(player_id),
    -- FOREIGN KEY (game_id) REFERENCES gaming_technology.games(game_id),
    -- FOREIGN KEY (server_id) REFERENCES gaming_technology.servers(server_id)
)
CREATE TABLE gaming_technology.servers (
    server_id uuid NOT NULL DEFAULT gen_random_uuid(), -- unique identifier for the game server instance
    game_id uuid NOT NULL, -- FK linking to the game this server hosts
    server_name character varying(150), -- display name for the server
    region character varying(50) NOT NULL, -- geographical region (e.g., us-east-1, eu-west-2)
    ip_address character varying(45), -- IP address (IPv4 or IPv6)
    port integer, -- network port number
    current_players integer NOT NULL DEFAULT 0, -- number of players currently connected
    max_players integer NOT NULL, -- maximum player capacity
    status character varying(30) NOT NULL DEFAULT 'offline', -- server status (e.g., online, offline, maintenance)
    last_heartbeat timestamp with time zone, -- last time the server reported its status
    PRIMARY KEY (server_id)
    -- FOREIGN KEY (game_id) REFERENCES gaming_technology.games(game_id)
)
CREATE TABLE gaming_technology.achievements (
    achievement_id uuid NOT NULL DEFAULT gen_random_uuid(), -- unique identifier for an achievement definition
    game_id uuid NOT NULL, -- FK linking to the game the achievement belongs to
    name character varying(150) NOT NULL, -- name of the achievement
    description text NOT NULL, -- how to unlock the achievement
    icon_url character varying(255), -- URL for the achievement's icon
    points integer DEFAULT 0, -- points awarded for unlocking (optional)
    hidden boolean DEFAULT false, -- whether the achievement details are hidden until unlocked
    PRIMARY KEY (achievement_id)
    -- FOREIGN KEY (game_id) REFERENCES gaming_technology.games(game_id)
)
CREATE TABLE gaming_technology.player_achievements (
    player_achievement_id uuid NOT NULL DEFAULT gen_random_uuid(), -- unique identifier for this unlock instance
    player_id uuid NOT NULL, -- FK linking to the player who unlocked it
    achievement_id uuid NOT NULL, -- FK linking to the achievement definition
    unlocked_at timestamp with time zone NOT NULL DEFAULT CURRENT_TIMESTAMP, -- when the achievement was unlocked
    PRIMARY KEY (player_achievement_id),
    UNIQUE (player_id, achievement_id) -- Ensure a player can only unlock an achievement once
    -- FOREIGN KEY (player_id) REFERENCES gaming_technology.players(player_id),
    -- FOREIGN KEY (achievement_id) REFERENCES gaming_technology.achievements(achievement_id)
)
CREATE TABLE gaming_technology.in_game_items (
    item_id uuid NOT NULL DEFAULT gen_random_uuid(), -- unique identifier for the item definition
    game_id uuid NOT NULL, -- FK linking to the game this item belongs to
    item_name character varying(150) NOT NULL, -- name of the item
    item_type character varying(50) NOT NULL, -- type (e.g., Cosmetic, Consumable, Weapon, Armor)
    description text, -- description of the item
    rarity character varying(30), -- item rarity (e.g., Common, Rare, Epic, Legendary)
    cost_currency character varying(10), -- currency code if purchasable (e.g., USD, EUR, GOLD)
    cost_amount numeric(12, 2), -- price if purchasable
    attributes jsonb, -- flexible field for item stats or properties
    PRIMARY KEY (item_id)
    -- FOREIGN KEY (game_id) REFERENCES gaming_technology.games(game_id)
)
CREATE TABLE gaming_technology.player_inventory (
    inventory_id uuid NOT NULL DEFAULT gen_random_uuid(), -- unique identifier for an inventory entry
    player_id uuid NOT NULL, -- FK linking to the player owning the item
    item_id uuid NOT NULL, -- FK linking to the item definition
    quantity integer NOT NULL DEFAULT 1, -- number of items held (for stackable items)
    acquired_at timestamp with time zone NOT NULL DEFAULT CURRENT_TIMESTAMP, -- when the item was acquired
    instance_data jsonb, -- data specific to this instance (e.g., weapon mods, durability)
    PRIMARY KEY (inventory_id),
    -- Optional unique constraint if items are non-stackable or unique instances
    -- UNIQUE (player_id, item_id) -- Use if quantity is always 1
    -- FOREIGN KEY (player_id) REFERENCES gaming_technology.players(player_id),
    -- FOREIGN KEY (item_id) REFERENCES gaming_technology.in_game_items(item_id)
)


[User] List all staff members who have responded to at least one review in the last 6 months, including their first and last names and the count of responses.

[Assistant]
SELECT s.staff_id, s.first_name, s.last_name, COUNT(r.review_id) AS response_count
FROM hospitality_technology.reviews AS r
JOIN hospitality_technology.staff AS s
  ON r.response_staff_id = s.staff_id
WHERE r.response_date >= CURRENT_DATE - INTERVAL '6 months'
GROUP BY s.staff_id, s.first_name, s.last_name;

[User] Actually, only include responses to public reviews.

[Assistant]
SELECT s.staff_id, s.first_name, s.last_name, COUNT(r.review_id) AS response_count
FROM hospitality_technology.reviews AS r
JOIN hospitality_technology.staff AS s
  ON r.response_staff_id = s.staff_id
WHERE r.response_date >= CURRENT_DATE - INTERVAL '6 months'
  AND r.is_public = TRUE
GROUP BY s.staff_id, s.first_name, s.last_name;

[User] Also include the average response time in days for each staff member.

[Assistant]
SELECT s.staff_id, s.first_name, s.last_name,
       COUNT(r.review_id) AS response_count,
       AVG(EXTRACT(EPOCH FROM (r.response_date - r.review_date)) / 86400) AS avg_response_days
FROM hospitality_technology.reviews AS r
JOIN hospitality_technology.staff AS s
  ON r.response_staff_id = s.staff_id
WHERE r.response_date >= CURRENT_DATE - INTERVAL '6 months'
  AND r.is_public = TRUE
GROUP BY s.staff_id, s.first_name, s.last_name;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE hospitality_technology.properties (
    property_id character varying(64) NOT NULL,  -- unique identifier for the property (hotel, resort, etc.)
    property_name character varying(255) NOT NULL, -- name of the property
    address_line1 character varying(255) NOT NULL, -- primary address line
    address_line2 character varying(255), -- secondary address line
    city character varying(100) NOT NULL, -- city
    state_province character varying(100), -- state or province
    postal_code character varying(20) NOT NULL, -- zip or postal code
    country_code character varying(3) NOT NULL, -- ISO country code (e.g., USA, CAN)
    phone_number character varying(30), -- main contact phone
    email_address character varying(255), -- main contact email
    property_type character varying(50) NOT NULL, -- e.g., Hotel, Resort, B&B, Motel
    star_rating numeric(2,1), -- star rating (e.g., 4.5)
    timezone character varying(64) NOT NULL, -- IANA timezone ID (e.g., America/New_York)
    manager_staff_id character varying(64), -- FK to staff table for the general manager
    created_at timestamp with time zone NOT NULL DEFAULT current_timestamp, -- record creation time
    updated_at timestamp with time zone NOT NULL DEFAULT current_timestamp, -- record last update time
    PRIMARY KEY (property_id)
)
CREATE TABLE hospitality_technology.staff ( staff_id text PRIMARY KEY, property_id text, first_name text, last_name text, position text, work_email text, work_phone text, hire_date date, termination_date date, is_active boolean, access_level int, manager_id text, created_at timestamp )
CREATE TABLE hospitality_technology.service_orders ( order_id text PRIMARY KEY, reservation_id text, guest_id text, service_id text, staff_id_ordered text, staff_id_delivered text, order_timestamp timestamp, delivery_timestamp timestamp, quantity int, unit_price numeric, total_price numeric, status text, notes text, bill_id text )
CREATE TABLE hospitality_technology.reviews ( review_id text, property_id text, reservation_id text, guest_id text, rating_overall integer, rating_cleanliness integer, rating_service integer, rating_location integer, rating_value integer, comment text, review_source text, review_date timestamp, is_public boolean, staff_response text, response_staff_id text, response_date timestamp )


[User] List pairs of citizens who share the same email domain.

[Assistant]
SELECT c1.first_name AS first1,
       c1.last_name AS last1,
       c2.first_name AS first2,
       c2.last_name AS last2,
       SPLIT_PART(c1.contact_email, '@', 2) AS domain
FROM government_services.citizens c1
JOIN government_services.citizens c2
  ON SPLIT_PART(c1.contact_email, '@', 2) = SPLIT_PART(c2.contact_email, '@', 2)
 AND c1.citizen_id < c2.citizen_id
WHERE c1.contact_email IS NOT NULL
  AND c2.contact_email IS NOT NULL;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE government_services.citizens (
    citizen_id character varying(64) NOT NULL,  -- unique identifier for the citizen
    national_id_number character varying(128) NOT NULL UNIQUE, -- official national identification number
    first_name character varying(100) NOT NULL,
    last_name character varying(100) NOT NULL,
    date_of_birth date NOT NULL,
    gender character varying(20),
    primary_address text NOT NULL, -- full primary residential address
    contact_email character varying(128) UNIQUE,
    contact_phone character varying(32),
    registration_date timestamp NOT NULL, -- when the citizen profile was created
    is_verified boolean DEFAULT false, -- whether identity has been officially verified
    PRIMARY KEY (citizen_id)
)


[User] Calculate the total quantity traded for each asset, showing the asset name and symbol.

[Assistant] SELECT T1.name, T1.symbol, SUM(T2.quantity) FROM trading_platform.assets AS T1 JOIN trading_platform.trades AS T2 ON T1.asset_id = T2.asset_id GROUP BY 1, 2;

[User] Only show assets where the total quantity traded is more than 5000.

[Assistant] SELECT T1.name, T1.symbol, SUM(T2.quantity) FROM trading_platform.assets AS T1 JOIN trading_platform.trades AS T2 ON T1.asset_id = T2.asset_id GROUP BY 1, 2 HAVING SUM(T2.quantity) > 5000;

[User] Actually, instead of total quantity, show the average trade price for each asset.

[Assistant] SELECT T1.name, T1.symbol, AVG(T2.price) FROM trading_platform.assets AS T1 JOIN trading_platform.trades AS T2 ON T1.asset_id = T2.asset_id GROUP BY 1, 2;

[User] Sort those assets by the average price in descending order.

[Assistant] SELECT T1.name, T1.symbol, AVG(T2.price) FROM trading_platform.assets AS T1 JOIN trading_platform.trades AS T2 ON T1.asset_id = T2.asset_id GROUP BY 1, 2 ORDER BY AVG(T2.price) DESC;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE trading_platform.users ( user_id.text, username.text, email.text, password_hash.text, created_at.timestamp )
CREATE TABLE trading_platform.wallets ( wallet_id text, user_id text, address text, private_key text, created_at timestamp )
CREATE TABLE trading_platform.orders ( order_id text, user_id text, wallet_id text, asset_id text, order_type text, quantity numeric, price numeric, status text, created_at timestamp )
CREATE TABLE trading_platform.trades ( trade_id character varying(64) NOT NULL, order_id character varying(64) NOT NULL, buyer_id character varying(64) NOT NULL, seller_id character varying(64) NOT NULL, asset_id character varying(64) NOT NULL, quantity numeric(38,14) NOT NULL, price numeric(38,14) NOT NULL, traded_at timestamp NOT NULL, PRIMARY KEY (trade_id) )
CREATE TABLE trading_platform.assets ( asset_id text, name text, symbol text, type text )
CREATE TABLE trading_platform.dapps ( dapp_id text, name text, description text, url text )
CREATE TABLE trading_platform.peers ( peer_id.text, ip_address.text, port.integer, last_seen.timestamp )
CREATE TABLE trading_platform.metadata ( metadata_id character varying(64) NOT NULL, asset_id character varying(64) NOT NULL, key character varying(128) NOT NULL, value text NOT NULL, PRIMARY KEY (metadata_id) )
CREATE TABLE trading_platform.kyc_audit ( kyc_audit_id.text, user_id.text, status.text, reviewed_at.timestamp )
CREATE TABLE trading_platform.logs ( log_id text PRIMARY KEY, user_id text, action text, details text, logged_at timestamp )
CREATE TABLE trading_platform.notifications ( notification_id text, user_id text, message text, sent_at timestamp, read_at timestamp )


[User] List all patients who have insurance plans with group numbers, showing their patient IDs and the count of such plans per patient.

[Assistant] SELECT patient_id, COUNT(*) AS plan_count FROM healthcare.patient_insurance WHERE group_number IS NOT NULL GROUP BY patient_id;

[User] Actually, I only need patients who have more than 2 such plans.

[Assistant] SELECT patient_id, COUNT(*) AS plan_count FROM healthcare.patient_insurance WHERE group_number IS NOT NULL GROUP BY patient_id HAVING COUNT(*) > 2;

[User] Can you also include the earliest effective date among these plans for each patient?

[Assistant] SELECT patient_id, COUNT(*) AS plan_count, MIN(effective_date) AS earliest_effective_date FROM healthcare.patient_insurance WHERE group_number IS NOT NULL GROUP BY patient_id HAVING COUNT(*) > 2;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE healthcare.patient_insurance (
    patient_insurance_id character varying(64) NOT NULL, -- unique identifier for this patient-plan link
    patient_id character varying(64) NOT NULL, -- FK to patients table
    plan_id character varying(64) NOT NULL, -- FK to insurance_plans table
    policy_number character varying(100) NOT NULL, -- patient's policy number
    group_number character varying(100), -- group number, if applicable
    subscriber_name character varying(200), -- name of the primary policy holder
    effective_date date NOT NULL, -- date the coverage begins
    expiration_date date, -- date the coverage ends (if known)
    is_primary boolean NOT NULL DEFAULT true, -- indicates if this is the primary insurance
    PRIMARY KEY (patient_insurance_id),
    UNIQUE (patient_id, plan_id, policy_number) -- ensure a patient doesn't have the same policy twice
)


[User] List all medical record entries where the treatment_plan mentions a medication name. Return patient_id, record_id, and the matching medication_name.

[Assistant]
SELECT mr.patient_id,
       mr.record_id,
       m.medication_name
FROM healthcare.medical_records AS mr
JOIN healthcare.medications AS m
  ON mr.treatment_plan ILIKE '%' || m.medication_name || '%';

[User] Actually, only include medications manufactured by 'Pfizer'.

[Assistant]
SELECT mr.patient_id,
       mr.record_id,
       m.medication_name
FROM healthcare.medical_records AS mr
JOIN healthcare.medications AS m
  ON mr.treatment_plan ILIKE '%' || m.medication_name || '%'
WHERE m.manufacturer = 'Pfizer';

[User] Also sort the results by record_date descending.

[Assistant]
SELECT mr.patient_id,
       mr.record_id,
       m.medication_name
FROM healthcare.medical_records AS mr
JOIN healthcare.medications AS m
  ON mr.treatment_plan ILIKE '%' || m.medication_name || '%'
WHERE m.manufacturer = 'Pfizer'
ORDER BY mr.record_date DESC;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE healthcare.patients (
    patient_id character varying(64) NOT NULL,  -- unique identifier for the patient
    first_name character varying(100) NOT NULL, -- patient's first name
    last_name character varying(100) NOT NULL, -- patient's last name
    date_of_birth date NOT NULL, -- patient's date of birth
    gender character varying(10), -- patient's gender (e.g., Male, Female, Other)
    address text, -- patient's home address
    phone_number character varying(20), -- patient's phone number
    email character varying(128) UNIQUE, -- patient's email address
    emergency_contact_name character varying(200), -- name of emergency contact
    emergency_contact_phone character varying(20), -- phone number of emergency contact
    created_at timestamp with time zone NOT NULL DEFAULT current_timestamp, -- record creation time
    updated_at timestamp with time zone NOT NULL DEFAULT current_timestamp, -- record last update time
    PRIMARY KEY (patient_id)
)
CREATE TABLE healthcare.doctors (
    doctor_id character varying(64) NOT NULL,  -- unique identifier for the doctor
    first_name character varying(100) NOT NULL, -- doctor's first name
    last_name character varying(100) NOT NULL, -- doctor's last name
    specialty character varying(100) NOT NULL, -- doctor's medical specialty
    license_number character varying(50) UNIQUE NOT NULL, -- doctor's medical license number
    phone_number character varying(20), -- doctor's contact phone
    email character varying(128) UNIQUE, -- doctor's contact email
    hospital_affiliation_id character varying(64), -- FK to hospitals table (optional)
    created_at timestamp with time zone NOT NULL DEFAULT current_timestamp,
    updated_at timestamp with time zone NOT NULL DEFAULT current_timestamp,
    PRIMARY KEY (doctor_id)
)
CREATE TABLE healthcare.appointments (
    appointment_id character varying(64) NOT NULL, -- unique identifier for the appointment
    patient_id character varying(64) NOT NULL, -- FK to patients table
    doctor_id character varying(64) NOT NULL, -- FK to doctors table
    appointment_time timestamp with time zone NOT NULL, -- date and time of the appointment
    duration_minutes integer NOT NULL, -- expected duration in minutes
    reason text, -- reason for the visit
    status character varying(32) NOT NULL, -- e.g., Scheduled, Completed, Cancelled, No-show
    location_id character varying(64), -- FK to a potential locations/clinics table
    notes text, -- notes related to scheduling
    created_at timestamp with time zone NOT NULL DEFAULT current_timestamp,
    PRIMARY KEY (appointment_id)
)
CREATE TABLE healthcare.medical_records (
    record_id character varying(64) NOT NULL,  -- unique identifier for the medical record entry
    patient_id character varying(64) NOT NULL, -- FK to patients table
    appointment_id character varying(64) UNIQUE, -- FK to appointments table (can be null if record not tied to specific appt)
    doctor_id character varying(64) NOT NULL, -- FK to doctors table (doctor creating the record)
    record_date timestamp with time zone NOT NULL, -- date the record/observation was made
    chief_complaint text, -- patient's primary reason for visit
    present_illness_history text, -- detailed history of the current issue
    past_medical_history text, -- relevant past conditions/surgeries
    physical_examination_notes text, -- findings from the physical exam
    assessment text, -- doctor's assessment/diagnosis summary
    treatment_plan text, -- planned course of action
    vitals jsonb, -- store vitals like BP, HR, Temp as structured JSON
    created_at timestamp with time zone NOT NULL DEFAULT current_timestamp,
    PRIMARY KEY (record_id)
)
CREATE TABLE healthcare.medications (
    medication_id character varying(64) NOT NULL, -- unique identifier for the medication type
    medication_name character varying(255) NOT NULL, -- common or brand name
    generic_name character varying(255), -- generic chemical name
    manufacturer character varying(100), -- drug manufacturer
    ndc_code character varying(20) UNIQUE, -- National Drug Code (optional but useful)
    description text, -- description of the medication
    PRIMARY KEY (medication_id)
)
CREATE TABLE healthcare.insurance_plans (
    plan_id character varying(64) NOT NULL, -- unique identifier for the insurance plan
    plan_name character varying(200) NOT NULL, -- name of the insurance plan
    insurance_provider character varying(100) NOT NULL, -- name of the insurance company
    plan_type character varying(50), -- e.g., PPO, HMO, EPO
    contact_phone character varying(20), -- provider contact number
    website character varying(255), -- provider website
    PRIMARY KEY (plan_id)
)
CREATE TABLE healthcare.patient_insurance (
    patient_insurance_id character varying(64) NOT NULL, -- unique identifier for this patient-plan link
    patient_id character varying(64) NOT NULL, -- FK to patients table
    plan_id character varying(64) NOT NULL, -- FK to insurance_plans table
    policy_number character varying(100) NOT NULL, -- patient's policy number
    group_number character varying(100), -- group number, if applicable
    subscriber_name character varying(200), -- name of the primary policy holder
    effective_date date NOT NULL, -- date the coverage begins
    expiration_date date, -- date the coverage ends (if known)
    is_primary boolean NOT NULL DEFAULT true, -- indicates if this is the primary insurance
    PRIMARY KEY (patient_insurance_id),
    UNIQUE (patient_id, plan_id, policy_number) -- ensure a patient doesn't have the same policy twice
)


[User] For each patient, find the next appointment after each one. Return patient_id, appointment_id, next_appointment_id, and the waiting time in minutes between them.

[Assistant]
SELECT A.patient_id,
       A.appointment_id AS current_id,
       B.appointment_id AS next_id,
       EXTRACT(EPOCH FROM (B.appointment_time - A.appointment_time)) / 60 AS wait_minutes
FROM healthcare.appointments A
JOIN healthcare.appointments B
  ON A.patient_id = B.patient_id
 AND B.appointment_time = (
       SELECT MIN(appointment_time)
       FROM healthcare.appointments
       WHERE patient_id = A.patient_id
         AND appointment_time > A.appointment_time
   );

[User] Now include only the pairs where the waiting time is less than 30 minutes.

[Assistant]
SELECT A.patient_id,
       A.appointment_id AS current_id,
       B.appointment_id AS next_id,
       EXTRACT(EPOCH FROM (B.appointment_time - A.appointment_time)) / 60 AS wait_minutes
FROM healthcare.appointments A
JOIN healthcare.appointments B
  ON A.patient_id = B.patient_id
 AND B.appointment_time = (
       SELECT MIN(appointment_time)
       FROM healthcare.appointments
       WHERE patient_id = A.patient_id
         AND appointment_time > A.appointment_time
   )
WHERE EXTRACT(EPOCH FROM (B.appointment_time - A.appointment_time)) / 60 < 30;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE healthcare.appointments ( appointment_id text PRIMARY KEY, patient_id text, doctor_id text, appointment_time timestamp, duration_minutes int, reason text, status text, location_id text, notes text, created_at timestamp )


[User] Show the number of staff members in each position and the average access level, grouping by position.

[Assistant]
SELECT position,
       COUNT(*) AS staff_count,
       AVG(access_level) AS avg_access_level
FROM hospitality_technology.staff
GROUP BY position;

[User] Filter to only include positions where the average access level is greater than 4.

[Assistant]
SELECT position,
       COUNT(*) AS staff_count,
       AVG(access_level) AS avg_access_level
FROM hospitality_technology.staff
GROUP BY position
HAVING AVG(access_level) > 4;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE hospitality_technology.staff ( staff_id text, property_id text, first_name text, last_name text, position text, work_email text, work_phone text, hire_date date, termination_date date, is_active boolean, access_level integer, manager_id text, created_at timestamp )
CREATE TABLE hospitality_technology.service_orders ( order_id text, reservation_id text, guest_id text, service_id text, staff_id_ordered text, staff_id_delivered text, order_timestamp timestamp, delivery_timestamp timestamp, quantity integer, unit_price numeric, total_price numeric, status text, notes text, bill_id text )


[User] List all drivers along with their status and license expiry date.

[Assistant]
SELECT driver_id, first_name, last_name, status, license_expiry_date
FROM transportation.drivers;

[User] Only show drivers whose status is 'Active'.

[Assistant]
SELECT driver_id, first_name, last_name, status, license_expiry_date
FROM transportation.drivers
WHERE status = 'Active';

[User] Also, filter to only include drivers whose license_expiry_date is in the year 2025.

[Assistant]
SELECT driver_id, first_name, last_name, status, license_expiry_date
FROM transportation.drivers
WHERE status = 'Active'
  AND EXTRACT(YEAR FROM license_expiry_date) = 2025;

[User] Sorry, order the results by license_expiry_date ascending.

[Assistant]
SELECT driver_id, first_name, last_name, status, license_expiry_date
FROM transportation.drivers
WHERE status = 'Active'
  AND EXTRACT(YEAR FROM license_expiry_date) = 2025
ORDER BY license_expiry_date ASC;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE transportation.drivers ( driver_id text, employee_id text, first_name text, last_name text, license_number text, license_expiry_date date, contact_number text, email text, hire_date date, status text )


[User] Show all SUI coins with 'exists' status and more than 8 decimal places. Display coin_type, symbol, name, and decimals.

[Assistant]
SELECT coin_type, symbol, name, decimals
FROM sui_coins_metadata
WHERE status = 'exists' AND decimals > 8;

[User] Add the total balance for each coin_type by joining with sui_coins.

[Assistant]
SELECT scm.coin_type, scm.symbol, scm.name, scm.decimals, SUM(sc.balance::numeric) AS total_balance
FROM sui_coins_metadata scm
JOIN sui_coins sc ON scm.coin_type = sc.coin_type
WHERE scm.status = 'exists' AND scm.decimals > 8
GROUP BY scm.coin_type, scm.symbol, scm.name, scm.decimals;

[User] Can you also include only coins where the total_balance is greater than 1,000,000 and show the description?

[Assistant]
SELECT scm.coin_type, scm.symbol, scm.name, scm.decimals, scm.description, SUM(sc.balance::numeric) AS total_balance
FROM sui_coins_metadata scm
JOIN sui_coins sc ON scm.coin_type = sc.coin_type
WHERE scm.status = 'exists' AND scm.decimals > 8
GROUP BY scm.coin_type, scm.symbol, scm.name, scm.decimals, scm.description
HAVING SUM(sc.balance::numeric) > 1000000;

[User] Actually, only show the top 5 coins with the highest total_balance.

[Assistant]
SELECT scm.coin_type, scm.symbol, scm.name, scm.decimals, scm.description, SUM(sc.balance::numeric) AS total_balance
FROM sui_coins_metadata scm
JOIN sui_coins sc ON scm.coin_type = sc.coin_type
WHERE scm.status = 'exists' AND scm.decimals > 8
GROUP BY scm.coin_type, scm.symbol, scm.name, scm.decimals, scm.description
HAVING SUM(sc.balance::numeric) > 1000000
ORDER BY total_balance DESC
LIMIT 5;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE nft_holders ( block_number bigint NOT NULL, contract_address varchar NOT NULL, wallet_address varchar NOT NULL, token_id varchar NOT NULL, contract_type varchar NOT NULL, amount varchar NOT NULL, pk varchar NOT NULL )
CREATE TABLE sui_coins ( object_id varchar NOT NULL, status varchar NOT NULL, coin_type varchar NOT NULL, balance varchar NOT NULL, owner varchar NOT NULL )
CREATE TABLE sui_coins_metadata (
    object_id varchar NOT NULL, -- object id of the coin metadata object
    coin_type varchar NOT NULL, -- coin type, eg. 0x...66::reap_token::REAP_TOKEN
    status varchar NOT NULL, -- coin status, eg. exists, deleted
    decimals bigint NOT NULL, -- decimals of the coin
    description varchar NOT NULL, -- description of the coin
    icon_url varchar NOT NULL, -- icon url of the coin
    symbol varchar NOT NULL, -- symbol of the coin
    name varchar NOT NULL  -- name of the coin
)
CREATE TABLE sui_nfts ( object_id text, status text, collection_type text, package_id text, previous_transaction text, display text, owner text, name text )
CREATE TABLE nft_metadata ( blockchain text, contract_address text, token_id text, contract_name text, erc_type text, amount bigint, minter text, owner text, mint_block_number bigint, mint_time bigint, mint_transaction_hash text, mint_price text, token_uri text, metadata text, name text, image_uri text, traits text, updated_at bigint, status text, rarity_score real, rarity_rank integer, unique_attribute_count integer, pk integer )
CREATE TABLE nft_collections ( blockchain varchar NOT NULL, contract_address varchar NOT NULL, name varchar NOT NULL, symbol varchar NOT NULL, deploy_block_number bigint NOT NULL, deploy_block_time bigint NOT NULL, erc_type varchar NOT NULL, owner varchar NOT NULL, traits varchar NOT NULL, description varchar NOT NULL, slug varchar NOT NULL, media_info varchar NOT NULL, image_url varchar NOT NULL, banner_image_url varchar NOT NULL, updated_at bigint NOT NULL, banner varchar NOT NULL, token_count bigint NOT NULL, floor_price varchar NOT NULL, floor_price_symbol varchar NOT NULL, floor_price_contract varchar NOT NULL, pk integer NOT NULL )
CREATE TABLE token_prices ( uuid text, blockchain text, address text, decimals bigint, symbol text, price real, timestamp timestamp )
CREATE TABLE token_prices_latest (
    blockchain varchar(36) NOT NULL, -- blockchain fields for the functionType  in contract
    address varchar(42) NOT NULL, -- address fields for the functionType  in contract
    decimals bigint NOT NULL, -- decimals fields for the functionType  in contract
    symbol varchar(36) NOT NULL, -- symbol fields for the functionType  in contract
    price real NOT NULL, -- price fields for the functionType  in contract
    timestamp timestamp(6) NOT NULL  -- timestamp fields for the functionType  in contract
)
CREATE TABLE erc20_approval ( block_number bigint NOT NULL, block_timestamp timestamp(6) NOT NULL, transaction_index integer NOT NULL, transaction_hash varchar NOT NULL, log_index integer NOT NULL, contract_address varchar NOT NULL, pk integer NOT NULL )
CREATE TABLE token_balances ( block_number.bigint, block_timestamp.timestamp, tick.text, wallet_address.text, total_supply.decimal, amount.decimal )
CREATE TABLE token_info (
    block_timestamp timestamp(3) NOT NULL, -- Timestamp of the block containing the inscription (matches block_timestamp in transactions table)
    block_number bigint NOT NULL, -- Block number containing the inscription (matches block_number in transactions table)
    tx_index integer NOT NULL, -- Index of the transaction containing the inscription (matches transaction_index in transactions table)
    tx_hash varchar(66) NOT NULL, -- Unique identifier of the transaction containing the inscription (matches hash in transactions table)
    tick varchar NOT NULL, -- Token tick
    max_supply decimal(38,0) NOT NULL, -- Max supply
    lim decimal(38,0) NOT NULL, -- Limit of each mint
    wlim decimal(38,0) NOT NULL, -- Limit of each address can maximum mint
    dec integer NOT NULL, -- Decimal for minimum divie
    creator varchar(42) NOT NULL  -- Address originating the inscription (matches from_address in transactions table)
)
CREATE TABLE mud_holesky_redstone (
    address varchar NOT NULL, -- address fields for the functionType  in contract
    table_id varchar NOT NULL, -- table_id fields for the functionType  in contract
    key_bytes varchar NOT NULL, -- key_bytes fields for the functionType  in contract
    key0 varchar NOT NULL, -- key0 fields for the functionType  in contract
    key1 varchar NOT NULL, -- key1 fields for the functionType  in contract
    static_data varchar NOT NULL, -- static_data fields for the functionType  in contract
    encoded_lengths varchar NOT NULL, -- encoded_lengths fields for the functionType  in contract
    dynamic_data varchar NOT NULL, -- dynamic_data fields for the functionType  in contract
    is_deleted boolean NOT NULL, -- is_deleted fields for the functionType  in contract
    block_number bigint NOT NULL, -- Block number uniquely identifying the block
    log_index bigint NOT NULL  -- Index of the log within the transaction
)
CREATE TABLE token_info_bitcoin ( block_timestamp.timestamp, block_number.bigint, tx_index.integer, tx_hash.text, tick.text, max_supply.decimal, lim.decimal, wlim.decimal, dec.integer, creator.text )
CREATE TABLE token_activities_avalanche (
    block_timestamp timestamp(3) NOT NULL, -- Timestamp of the block containing the inscription (matches block_timestamp in transactions table)
    block_number bigint NOT NULL, -- Block number containing the inscription (matches block_number in transactions table)
    tx_index integer NOT NULL, -- Index of the transaction containing the inscription (matches transaction_index in transactions table)
    tx_hash varchar(66) NOT NULL, -- Unique identifier of the transaction containing the inscription (matches hash in transactions table)
    log_index integer NOT NULL, -- Index of the log within the transaction
    type varchar(20) NOT NULL, -- Operation: Type of event (deploy, mint, transfer, list)
    tick varchar(255) NOT NULL, -- Ticker: Identifier of the inscription
    id varchar(255) NOT NULL, -- Unique identifier of the inscription
    amt decimal(38,0) NOT NULL, -- Amount to mint: States the amount of the inscription to operation. When operation is mint, has to be less or equal to "lim"
    from_address varchar(42) NOT NULL, -- Address sending the inscription
    to_address varchar(42) NOT NULL  -- Address receiving the inscription
)
CREATE TABLE token_balances_avalanche ( block_number bigint, block_timestamp timestamp, tick varchar, wallet_address varchar, total_supply decimal, amount decimal )


[User] List all agents who have a commission rate above 0.1, showing their full names and agency names.

[Assistant] SELECT agent_id, first_name, last_name, agency_name, commission_rate FROM insurance.agents WHERE commission_rate > 0.1 AND status = 'Active';

[User] Now include only agents who were hired in the last 2 years.

[Assistant] SELECT agent_id, first_name, last_name, agency_name, commission_rate, hire_date FROM insurance.agents WHERE commission_rate > 0.1 AND status = 'Active' AND hire_date >= CURRENT_DATE - INTERVAL '2 years';

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE insurance.policies (
    policy_id character varying(64) NOT NULL, -- unique identifier for the policy
    customer_id character varying(64) NOT NULL, -- identifier for the policyholder (FK to customers)
    product_id character varying(64) NOT NULL, -- identifier for the insurance product (FK to insurance_products)
    agent_id character varying(64), -- identifier for the agent who sold the policy (FK to agents)
    policy_number character varying(100) NOT NULL UNIQUE, -- customer-facing policy number
    start_date date NOT NULL, -- date the policy coverage begins
    end_date date NOT NULL, -- date the policy coverage ends
    premium_amount numeric(12, 2) NOT NULL, -- total premium for the policy term
    coverage_limit numeric(15, 2) NOT NULL, -- maximum amount covered
    deductible numeric(10, 2) NOT NULL, -- amount customer pays before coverage kicks in
    status character varying(30) NOT NULL, -- e.g., Active, Expired, Cancelled, Pending
    issued_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, -- when the policy was issued
    cancellation_date date,
    cancellation_reason text,
    PRIMARY KEY (policy_id)
)
CREATE TABLE insurance.insurance_products (
    product_id character varying(64) NOT NULL, -- unique identifier for the insurance product
    product_name character varying(150) NOT NULL, -- name of the insurance product (e.g., 'Comprehensive Auto Insurance')
    product_type character varying(50) NOT NULL, -- category like 'Auto', 'Home', 'Life', 'Health', 'Travel'
    description text, -- detailed description of the product
    base_premium numeric(10, 2) NOT NULL, -- starting premium before adjustments
    coverage_details text, -- details about what is covered (could be JSON or structured text)
    underwriting_rules text, -- rules used for assessing risk and eligibility
    is_active boolean NOT NULL DEFAULT true, -- whether the product is currently offered
    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at timestamp,
    PRIMARY KEY (product_id)
)
CREATE TABLE insurance.agents (
    agent_id character varying(64) NOT NULL, -- unique identifier for the agent
    first_name character varying(100) NOT NULL,
    last_name character varying(100) NOT NULL,
    agency_name character varying(150),
    license_number character varying(100) NOT NULL UNIQUE, -- state insurance license number
    license_state character varying(50) NOT NULL,
    contact_email character varying(128) UNIQUE,
    contact_phone character varying(30),
    hire_date date,
    termination_date date,
    status character varying(20) NOT NULL DEFAULT 'Active', -- e.g., Active, Terminated, On Leave
    commission_rate numeric(5, 4) NOT NULL DEFAULT 0.05, -- percentage commission
    manager_id character varying(64), -- identifier for the agent's manager (FK to agents or employees)
    PRIMARY KEY (agent_id)
)
CREATE TABLE insurance.premium_payments (
    payment_id character varying(64) NOT NULL, -- unique identifier for the payment
    policy_id character varying(64) NOT NULL, -- identifier of the policy the payment is for (FK to policies)
    customer_id character varying(64) NOT NULL, -- identifier of the customer making the payment (FK to customers)
    payment_date timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, -- date the payment was received
    amount_paid numeric(12, 2) NOT NULL, -- amount of the payment
    payment_method character varying(50), -- e.g., Credit Card, Bank Transfer, Check
    transaction_reference character varying(128) UNIQUE, -- reference from payment processor
    due_date date, -- due date for this payment installment
    payment_period_start date, -- start date of the period this payment covers
    payment_period_end date, -- end date of the period this payment covers
    status character varying(30) NOT NULL DEFAULT 'Completed', -- e.g., Completed, Pending, Failed, Refunded
    PRIMARY KEY (payment_id)
)
CREATE TABLE insurance.claim_documents (
    document_id character varying(64) NOT NULL, -- unique identifier for the document
    claim_id character varying(64) NOT NULL, -- identifier of the claim this document relates to (FK to claims)
    document_type character varying(50) NOT NULL, -- e.g., Police Report, Photo, Invoice, Medical Bill
    file_name character varying(255) NOT NULL, -- original name of the uploaded file
    file_path character varying(512) NOT NULL, -- storage path (e.g., S3 URL, network path)
    file_size_bytes integer, -- size of the file in bytes
    mime_type character varying(100), -- MIME type of the file (e.g., 'image/jpeg', 'application/pdf')
    uploaded_by character varying(64), -- identifier of the user/system who uploaded (FK to users/customers)
    uploaded_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, -- time of upload
    description text, -- optional description of the document
    PRIMARY KEY (document_id)
)
CREATE TABLE insurance.policy_beneficiaries (
    beneficiary_id character varying(64) NOT NULL, -- unique identifier for the beneficiary entry
    policy_id character varying(64) NOT NULL, -- identifier of the life/relevant policy (FK to policies)
    customer_id character varying(64) NOT NULL, -- identifier of the beneficiary (could be FK to customers or store info directly)
    first_name character varying(100) NOT NULL, -- beneficiary first name (if not linking to customers table)
    last_name character varying(100) NOT NULL, -- beneficiary last name
    relationship character varying(50) NOT NULL, -- relationship to the policyholder (e.g., Spouse, Child, Parent)
    percentage_share numeric(5, 2) NOT NULL CHECK (percentage_share > 0 AND percentage_share <= 100), -- percentage of payout
    contact_info text, -- contact details for the beneficiary
    added_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
    PRIMARY KEY (beneficiary_id),
    UNIQUE (policy_id, customer_id) -- Ensure a person is listed only once per policy
)


[User] Find claim IDs that have more than 5 documents of type 'PHOTO'.

[Assistant] SELECT claim_id FROM insurance.claim_documents WHERE document_type = 'PHOTO' GROUP BY claim_id HAVING COUNT(*) > 5;

[User] Can you filter those claims to only include documents uploaded after '2024-01-01'? Show the claim_id, document_id, file_name, and uploaded_at for those specific documents.

[Assistant] SELECT claim_id, document_id, file_name, uploaded_at FROM insurance.claim_documents WHERE uploaded_at > '2024-01-01' AND claim_id IN ( SELECT claim_id FROM insurance.claim_documents WHERE document_type = 'PHOTO' GROUP BY claim_id HAVING COUNT(*) > 5 );

[User] Great. Now, only show documents that also have a file size greater than 1MB.

[Assistant] SELECT claim_id, document_id, file_name, uploaded_at FROM insurance.claim_documents WHERE uploaded_at > '2024-01-01' AND file_size_bytes > 1048576 AND claim_id IN ( SELECT claim_id FROM insurance.claim_documents WHERE document_type = 'PHOTO' GROUP BY claim_id HAVING COUNT(*) > 5 );

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE insurance.claim_documents ( document_id text PRIMARY KEY, claim_id text, document_type text, file_name text, file_path text, file_size_bytes int, mime_type text, uploaded_by text, uploaded_at timestamp, description text )


[User] Can you list all the policy numbers and their group_numbers for policies that will expire within the next 90 days from today?

[Assistant] SELECT policy_number, group_number FROM healthcare.patient_insurance WHERE expiration_date BETWEEN CURRENT_DATE AND CURRENT_DATE + INTERVAL '90 days';

[User] Only show results where the group_number is not null.

[Assistant] SELECT policy_number, group_number FROM healthcare.patient_insurance WHERE expiration_date BETWEEN CURRENT_DATE AND CURRENT_DATE + INTERVAL '90 days' AND group_number IS NOT NULL;


[User] What is the ticket price for a journey on train number T4321?

[Assistant] I'm sorry, but I don't have access to information about ticket prices for specific trains. The data I have is limited to train details such as model, manufacturer, capacity, and maintenance schedules. For ticket pricing, please consult the ticketing office or the official website.

System:
You are an SQL statement expert and you can refuse the user's question if the question is not related to the table structure. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE train_station_management.trains ( train_id text PRIMARY KEY, train_number text UNIQUE, model text, manufacturer text, year_manufactured int, capacity int, status text, last_maintenance_date date, next_maintenance_date date )


[User] List all rooms that are currently in 'Maintenance' status, including their room numbers and current conditions.

[Assistant] SELECT room_number, current_condition FROM hospitality_technology.rooms WHERE status = 'Maintenance';

[User] Now, filter these results to only include rooms on floors 1 through 3.

[Assistant] SELECT room_number, current_condition FROM hospitality_technology.rooms WHERE status = 'Maintenance' AND floor BETWEEN 1 AND 3;

[User] The query is missing the property_id. Can you include that as well?

[Assistant] SELECT property_id, room_number, current_condition FROM hospitality_technology.rooms WHERE status = 'Maintenance' AND floor BETWEEN 1 AND 3;

[User] Actually, I need to see the results ordered by property_id first, then by room_number.

[Assistant] SELECT property_id, room_number, current_condition FROM hospitality_technology.rooms WHERE status = 'Maintenance' AND floor BETWEEN 1 AND 3 ORDER BY property_id, room_number;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE hospitality_technology.rooms (
    room_id character varying(64) NOT NULL,  -- unique identifier for the room
    property_id character varying(64) NOT NULL, -- FK to properties table
    room_number character varying(10) NOT NULL, -- room number identifier (e.g., '101', 'Suite 2B')
    room_type_id character varying(64) NOT NULL, -- FK to room_types table
    floor integer, -- floor number the room is on
    status character varying(50) NOT NULL, -- e.g., Available, Occupied, Cleaning, OutOfOrder, Maintenance
    is_smoking boolean NOT NULL DEFAULT false, -- smoking allowed flag
    features text, -- description of features (e.g., Balcony, Sea View, Jacuzzi)
    current_condition text, -- notes on room condition
    last_cleaned_at timestamp with time zone, -- timestamp of last cleaning
    PRIMARY KEY (room_id),
    FOREIGN KEY (property_id) REFERENCES hospitality_technology.properties(property_id),
    FOREIGN KEY (room_type_id) REFERENCES hospitality_technology.room_types(room_type_id)
)


[User] For each vehicle, find the vehicle in the same depot that was acquired immediately before it. Display the current vehicle_id, acquisition_date, previous vehicle_id, and its acquisition_date.

[Assistant] SELECT v.vehicle_id, v.acquisition_date, prev.vehicle_id AS previous_vehicle_id, prev.acquisition_date AS previous_acquisition_date FROM transportation.vehicles v JOIN transportation.vehicles prev ON v.depot_id = prev.depot_id AND prev.acquisition_date = (SELECT MAX(acquisition_date) FROM transportation.vehicles WHERE depot_id = v.depot_id AND acquisition_date < v.acquisition_date);

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE transportation.vehicles ( vehicle_id text PRIMARY KEY, license_plate text, vin text, make text, model text, year int, type text, capacity int, fuel_type text, status text, depot_id text, acquisition_date date )


[User] Can you narrow this down to only show cases where the case type is 'Criminal'?

[Assistant] SELECT case_name, case_number, date_opened FROM legal_services.cases WHERE lead_lawyer_id = 'lawyer_abc' AND status = 'Open' AND case_type = 'Criminal';

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE legal_services.cases ( case_id.text, case_number.text, case_name.text, client_id.text, lead_lawyer_id.text, case_type.text, status.text, date_opened.timestamp, date_closed.timestamp, description.text, court_jurisdiction.text )


[User] Can you list each developer's name along with the number of games they have published by joining developers and games?

[Assistant]
SELECT d.name AS developer_name,
       COUNT(g.game_id) AS games_published
FROM gaming_technology.developers d
LEFT JOIN gaming_technology.games g
  ON d.developer_id = g.developer_id
GROUP BY d.name;

[User] Also, only include developers who have published more than 3 games and show the latest release_date of their games.

[Assistant]
SELECT d.name AS developer_name,
       COUNT(g.game_id) AS games_published,
       MAX(g.release_date) AS latest_release
FROM gaming_technology.developers d
JOIN gaming_technology.games g
  ON d.developer_id = g.developer_id
GROUP BY d.name
HAVING COUNT(g.game_id) > 3
ORDER BY latest_release DESC;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE gaming_technology.players ( player_id uuid, username text, email text, password_hash text, registration_date timestamp with time zone, last_login timestamp with time zone, country_code text, status text, profile_data jsonb )
CREATE TABLE gaming_technology.games ( game_id uuid, title text, developer_id uuid, publisher_id uuid, genre text, release_date date, description text, platform text, engine text, website text )
CREATE TABLE gaming_technology.developers ( developer_id uuid, name text, country text, founded_year integer, website text, created_at timestamp with time zone )


[User] List every maintenance log for each vehicle, including the vehicle's license plate and the mechanic's name.

[Assistant]
SELECT ml.log_id, ml.vehicle_id, v.license_plate, ml.service_date, ml.service_type, ml.description, ml.mechanic_name
FROM transportation.maintenance_logs ml
JOIN transportation.vehicles v ON ml.vehicle_id = v.vehicle_id;

[User] I want to see only the maintenance logs where the service cost exceeds 500.

[Assistant]
SELECT ml.log_id, ml.vehicle_id, v.license_plate, ml.service_date, ml.service_type, ml.description, ml.mechanic_name, ml.cost
FROM transportation.maintenance_logs ml
JOIN transportation.vehicles v ON ml.vehicle_id = v.vehicle_id
WHERE ml.cost > 500;

[User] Add the odometer reading and sort the results by service date descending.

[Assistant]
SELECT ml.log_id, ml.vehicle_id, v.license_plate, ml.service_date, ml.service_type, ml.description, ml.mechanic_name, ml.cost, ml.odometer_reading
FROM transportation.maintenance_logs ml
JOIN transportation.vehicles v ON ml.vehicle_id = v.vehicle_id
WHERE ml.cost > 500
ORDER BY ml.service_date DESC;

[User] Sorry, actually, I also want to see the recommended next_service_due_date in the output.

[Assistant]
SELECT ml.log_id, ml.vehicle_id, v.license_plate, ml.service_date, ml.service_type, ml.description, ml.mechanic_name, ml.cost, ml.odometer_reading, ml.next_service_due_date
FROM transportation.maintenance_logs ml
JOIN transportation.vehicles v ON ml.vehicle_id = v.vehicle_id
WHERE ml.cost > 500
ORDER BY ml.service_date DESC;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE transportation.vehicles ( vehicle_id text PRIMARY KEY, license_plate text, vin text, make text, model text, year int, type text, capacity int, fuel_type text, status text, depot_id text, acquisition_date date )
CREATE TABLE transportation.drivers ( driver_id.text, employee_id.text, first_name.text, last_name.text, license_number.text, license_expiry_date.date, contact_number.text, email.text, hire_date.date, status.text )
CREATE TABLE transportation.routes ( route_id text, route_number text, description text, origin_location_id text, destination_location_id text, distance_km numeric, estimated_duration_minutes integer, type text )
CREATE TABLE transportation.trips ( trip_id text, route_id text, vehicle_id text, driver_id text, scheduled_departure timestamp, actual_departure timestamp, scheduled_arrival timestamp, actual_arrival timestamp, origin_location_id text, destination_location_id text, status text, passenger_count integer, cargo_manifest_id text )
CREATE TABLE transportation.maintenance_logs (
    log_id character varying(64) NOT NULL,  -- unique identifier for the maintenance record
    vehicle_id character varying(64) NOT NULL, -- identifier of the vehicle serviced
    service_date date NOT NULL, -- date the service was performed
    odometer_reading integer, -- vehicle mileage at time of service
    service_type character varying(128) NOT NULL, -- type of service (e.g., Oil Change, Tire Rotation, Engine Repair)
    description text NOT NULL, -- detailed description of work done
    cost numeric(10, 2), -- cost of the service
    mechanic_name character varying(128), -- name or ID of the mechanic/shop
    next_service_due_date date, -- recommended date for next service
    PRIMARY KEY (log_id)
)
CREATE TABLE transportation.fuel_logs (
    fuel_log_id character varying(64) NOT NULL,  -- unique identifier for the fuel log entry
    vehicle_id character varying(64) NOT NULL, -- identifier of the vehicle fueled
    trip_id character varying(64), -- optional: identifier of the trip during which fueling occurred
    log_timestamp timestamp with time zone NOT NULL, -- time when fueling occurred
    fuel_type character varying(32) NOT NULL, -- type of fuel added (matches vehicle's fuel type)
    quantity numeric(10, 3) NOT NULL, -- amount of fuel added (e.g., Liters, Gallons, kWh)
    unit character varying(16) NOT NULL, -- unit of quantity (e.g., L, gal, kWh)
    cost_per_unit numeric(8, 4), -- price per unit of fuel
    total_cost numeric(10, 2) NOT NULL, -- total cost of the fuel purchase
    odometer_reading integer, -- vehicle mileage at time of fueling
    location_id character varying(64), -- identifier of the fueling station/location
    PRIMARY KEY (fuel_log_id)
)
CREATE TABLE transportation.bookings ( booking_id character varying(64) NOT NULL, passenger_id character varying(64) NOT NULL, trip_id character varying(64) NOT NULL, seat_number character varying(16), booking_time timestamp with time zone NOT NULL, status character varying(32) NOT NULL, fare numeric(10, 2) NOT NULL, payment_transaction_id character varying(128), special_requests text, PRIMARY KEY (booking_id) )


[User] For each claim handler, count the number of documents uploaded for the claims they handled. Return claim_handler_id and document_count.

[Assistant]
SELECT c.claim_handler_id,
       COUNT(d.document_id) AS document_count
FROM insurance.claims AS c
JOIN insurance.claim_documents AS d
  ON c.claim_id = d.claim_id
GROUP BY c.claim_handler_id;

[User] Now restrict to handlers who have uploaded more than 10 documents.

[Assistant]
SELECT c.claim_handler_id,
       COUNT(d.document_id) AS document_count
FROM insurance.claims AS c
JOIN insurance.claim_documents AS d
  ON c.claim_id = d.claim_id
GROUP BY c.claim_handler_id
HAVING COUNT(d.document_id) > 10;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE insurance.claims ( claim_id.text, policy_id.text, customer_id.text, incident_date.timestamp, reported_date.timestamp, description.text, estimated_loss.numeric, status.text, settlement_amount.numeric, settlement_date.date, claim_handler_id.text, police_report_number.text )
CREATE TABLE insurance.premium_payments ( payment_id character varying(64) NOT NULL, policy_id character varying(64) NOT NULL, customer_id character varying(64) NOT NULL, payment_date timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, amount_paid numeric(12, 2) NOT NULL, payment_method character varying(50), transaction_reference character varying(128) UNIQUE, due_date date, payment_period_start date, payment_period_end date, status character varying(30) NOT NULL DEFAULT 'Completed', PRIMARY KEY (payment_id) )
CREATE TABLE insurance.claim_documents ( document_id text PRIMARY KEY, claim_id text, document_type text, file_name text, file_path text, file_size_bytes int, mime_type text, uploaded_by text, uploaded_at timestamp, description text )


[User] List all policies where the premium_amount exceeds the base_premium of its insurance product. Display the policy_number, premium_amount, product_name, and base_premium. Sort the results by premium_amount descending.

[Assistant]
SELECT p.policy_number, p.premium_amount, ip.product_name, ip.base_premium
FROM insurance.policies p
JOIN insurance.insurance_products ip ON p.product_id = ip.product_id
ORDER BY p.premium_amount DESC;

[User] Actually, I only want policies that are active and whose insurance products are also active.

[Assistant]
SELECT p.policy_number, p.premium_amount, ip.product_name, ip.base_premium
FROM insurance.policies p
JOIN insurance.insurance_products ip ON p.product_id = ip.product_id
WHERE p.status = 'active'
  AND ip.is_active = TRUE
ORDER BY p.premium_amount DESC;

[User] Also, limit the output to policies with a coverage_limit greater than 1000000.

[Assistant]
SELECT p.policy_number, p.premium_amount, ip.product_name, ip.base_premium
FROM insurance.policies p
JOIN insurance.insurance_products ip ON p.product_id = ip.product_id
WHERE p.status = 'active'
  AND ip.is_active = TRUE
  AND p.coverage_limit > 1000000
ORDER BY p.premium_amount DESC;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE insurance.customers ( customer_id text PRIMARY KEY, first_name text, last_name text, date_of_birth date, ssn_hash text, address_line1 text, address_line2 text, city text, state text, zip_code text, country text, phone_number text, email text, created_at timestamp, updated_at timestamp, status text )
CREATE TABLE insurance.policies ( policy_id text PRIMARY KEY, customer_id text, product_id text, agent_id text, policy_number text, start_date date, end_date date, premium_amount numeric, coverage_limit numeric, deductible numeric, status text, issued_at timestamp, cancellation_date date, cancellation_reason text )
CREATE TABLE insurance.claims ( claim_id text PRIMARY KEY, policy_id text, customer_id text, incident_date timestamp, reported_date timestamp, description text, estimated_loss numeric, status text, settlement_amount numeric, settlement_date date, claim_handler_id text, police_report_number text )
CREATE TABLE insurance.insurance_products ( product_id text PRIMARY KEY, product_name text, product_type text, description text, base_premium numeric, coverage_details text, underwriting_rules text, is_active boolean, created_at timestamp, updated_at timestamp )
CREATE TABLE insurance.agents ( agent_id text PRIMARY KEY, first_name text, last_name text, agency_name text, license_number text, license_state text, contact_email text, contact_phone text, hire_date date, termination_date date, status text, commission_rate numeric, manager_id text )
CREATE TABLE insurance.claim_documents ( document_id text PRIMARY KEY, claim_id text, document_type text, file_name text, file_path text, file_size_bytes int, mime_type text, uploaded_by text, uploaded_at timestamp, description text )
CREATE TABLE insurance.policy_beneficiaries ( beneficiary_id text PRIMARY KEY, policy_id text, customer_id text, first_name text, last_name text, relationship text, percentage_share numeric, contact_info text, added_at timestamp )


[User] I want to identify pairs of bookings that share the same payment_transaction_id, showing both booking IDs and the payment_transaction_id.

[Assistant]
SELECT b1.booking_id AS booking1, b2.booking_id AS booking2, b1.payment_transaction_id
FROM transportation.bookings b1
JOIN transportation.bookings b2
  ON b1.payment_transaction_id = b2.payment_transaction_id
  AND b1.booking_id < b2.booking_id;

[User] Now limit the results to only include pairs where both bookings have a status of 'Completed'.

[Assistant]
SELECT b1.booking_id AS booking1, b2.booking_id AS booking2, b1.payment_transaction_id
FROM transportation.bookings b1
JOIN transportation.bookings b2
  ON b1.payment_transaction_id = b2.payment_transaction_id
  AND b1.booking_id < b2.booking_id
WHERE b1.status = 'Completed'
  AND b2.status = 'Completed';

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE transportation.bookings ( booking_id.text, passenger_id.text, trip_id.text, seat_number.text, booking_time.timestamp, status.text, fare.numeric, payment_transaction_id.text, special_requests.text )


[User] How many lawyers who are partners were hired in each year? Show the hire year and the count.

[Assistant] SELECT strftime('%Y', hire_date) AS hire_year ,  count(lawyer_id) FROM legal_services.lawyers WHERE is_partner  =  true GROUP BY hire_year

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE legal_services.lawyers (
    lawyer_id character varying(64) NOT NULL,  -- unique identifier for the lawyer
    first_name character varying(100) NOT NULL, -- lawyer's first name
    last_name character varying(100) NOT NULL, -- lawyer's last name
    bar_number character varying(64) UNIQUE NOT NULL, -- lawyer's bar association number
    firm_id character varying(64), -- FK to law_firms table
    email character varying(128) UNIQUE NOT NULL, -- lawyer's professional email
    phone character varying(32), -- lawyer's contact phone number
    specialization text, -- areas of legal expertise
    hire_date timestamp NOT NULL, -- date the lawyer was hired or joined
    is_partner boolean DEFAULT false, -- flag indicating if the lawyer is a partner
    PRIMARY KEY (lawyer_id)
)


[User] For each asset, show its name and symbol, and the total number of completed orders that have resulted in at least one trade.

[Assistant]
SELECT a.name, a.symbol, COUNT(DISTINCT o.order_id) AS completed_order_count
FROM trading_platform.assets a
JOIN trading_platform.orders o ON o.asset_id = a.asset_id AND o.status = 'filled'
JOIN trading_platform.trades t ON t.order_id = o.order_id
GROUP BY a.asset_id, a.name, a.symbol;

[User] Only include assets where the total number of completed orders with trades is greater than 5, and sort the results by completed_order_count descending.

[Assistant]
SELECT a.name, a.symbol, COUNT(DISTINCT o.order_id) AS completed_order_count
FROM trading_platform.assets a
JOIN trading_platform.orders o ON o.asset_id = a.asset_id AND o.status = 'filled'
JOIN trading_platform.trades t ON t.order_id = o.order_id
GROUP BY a.asset_id, a.name, a.symbol
HAVING COUNT(DISTINCT o.order_id) > 5
ORDER BY completed_order_count DESC;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE trading_platform.wallets ( wallet_id.text, user_id.text, address.text, private_key.text, created_at.timestamp )
CREATE TABLE trading_platform.orders ( order_id.text, user_id.text, wallet_id.text, asset_id.text, order_type.text, quantity.numeric, price.numeric, status.text, created_at.timestamp )
CREATE TABLE trading_platform.trades (
    trade_id character varying(64) NOT NULL,  -- unique identifier for the trade
    order_id character varying(64) NOT NULL, -- identifier of the order that led to the trade
    buyer_id character varying(64) NOT NULL, -- identifier of the buyer
    seller_id character varying(64) NOT NULL, -- identifier of the seller
    asset_id character varying(64) NOT NULL, -- identifier of the asset being traded
    quantity numeric(38,14) NOT NULL, -- quantity of the asset in the trade
    price numeric(38,14) NOT NULL, -- price per unit of the asset
    traded_at timestamp NOT NULL, -- time when the trade was executed
    PRIMARY KEY (trade_id)
)
CREATE TABLE trading_platform.assets ( asset_id text, name text, symbol text, type text )
CREATE TABLE trading_platform.dapps ( dapp_id text PRIMARY KEY, name text, description text, url text )
CREATE TABLE trading_platform.kyc_audit (
    kyc_audit_id character varying(64) NOT NULL,  -- unique identifier for the KYC audit
    user_id character varying(64) NOT NULL, -- identifier of the user being audited
    status character varying(32) NOT NULL, -- status of the KYC audit (e.g., pending, approved, rejected)
    reviewed_at timestamp NOT NULL, -- time when the KYC audit was reviewed
    PRIMARY KEY (kyc_audit_id)
)
CREATE TABLE trading_platform.notifications ( notification_id.text, user_id.text, message.text, sent_at.timestamp, read_at.timestamp )


[User] For each claim, show the corresponding product_type of the insurance product for the related policy.

[Assistant]
SELECT cl.claim_id, ip.product_type
FROM insurance.claims cl
JOIN insurance.policies p ON cl.policy_id = p.policy_id
JOIN insurance.insurance_products ip ON p.product_id = ip.product_id;

[User] Sorry, there is no policies table, I got an error. Can you try joining claims to insurance_products another way?

[Assistant]
-- Unable to join directly since there is no 'policies' table connecting claims to insurance_products. If policy_id equals product_id, you may try:
SELECT claim_id, policy_id, product_type
FROM insurance.claims
JOIN insurance.insurance_products ON claims.policy_id = insurance_products.product_id;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE insurance.customers ( customer_id.text, first_name.text, last_name.text, date_of_birth.date, ssn_hash.text, address_line1.text, address_line2.text, city.text, state.text, zip_code.text, country.text, phone_number.text, email.text, created_at.timestamp, updated_at.timestamp, status.text )
CREATE TABLE insurance.claims ( claim_id.text, policy_id.text, customer_id.text, incident_date.timestamp, reported_date.timestamp, description.text, estimated_loss.numeric, status.text, settlement_amount.numeric, settlement_date.date, claim_handler_id.text, police_report_number.text )
CREATE TABLE insurance.insurance_products ( product_id.text, product_name.text, product_type.text, description.text, base_premium.numeric, coverage_details.text, underwriting_rules.text, is_active.boolean, created_at.timestamp, updated_at.timestamp )
CREATE TABLE insurance.claim_documents ( document_id.text, claim_id.text, document_type.text, file_name.text, file_path.text, file_size_bytes.integer, mime_type.text, uploaded_by.text, uploaded_at.timestamp, description.text )


[User] Show me all insurance plans where the website includes 'secure'.

[Assistant] SELECT * FROM healthcare.insurance_plans WHERE website ILIKE '%secure%';

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE healthcare.doctors ( doctor_id text, first_name text, last_name text, specialty text, license_number text, phone_number text, email text, hospital_affiliation_id text, created_at timestamp, updated_at timestamp )
CREATE TABLE healthcare.medical_records ( record_id text PRIMARY KEY, patient_id text, appointment_id text, doctor_id text, record_date timestamp, chief_complaint text, present_illness_history text, past_medical_history text, physical_examination_notes text, assessment text, treatment_plan text, vitals text, created_at timestamp )
CREATE TABLE healthcare.insurance_plans ( plan_id.text, plan_name.text, insurance_provider.text, plan_type.text, contact_phone.text, website.text )
CREATE TABLE healthcare.patient_insurance ( patient_insurance_id text, patient_id text, plan_id text, policy_number text, group_number text, subscriber_name text, effective_date date, expiration_date date, is_primary boolean )


[User] List pairs of wallet IDs owned by the same user where the creation dates are more than one year apart. Show the user ID and the wallet IDs of both wallets.

[Assistant] SELECT w1.user_id, w1.wallet_id AS wallet_id_1, w2.wallet_id AS wallet_id_2 FROM web3.wallets w1 JOIN web3.wallets w2 ON w1.user_id = w2.user_id AND w2.created_at > w1.created_at + INTERVAL '1 year' ORDER BY w1.user_id, w1.created_at;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE web3.wallets ( wallet_id text PRIMARY KEY, user_id text, address text, private_key text, created_at timestamp )


[User] How many group chats have been created since January 1, 2024?

[Assistant]
SELECT COUNT(*) AS group_chat_count
FROM social_media.conversations
WHERE is_group_chat = TRUE
  AND created_at >= '2024-01-01';

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE social_media.posts ( post_id text, user_id text, content text, media_url text, media_type text, created_at timestamp, updated_at timestamp, visibility text, location_lat numeric, location_lon numeric )
CREATE TABLE social_media.likes ( like_id text, user_id text, post_id text, comment_id text, created_at timestamp )
CREATE TABLE social_media.hashtags ( hashtag_id text, tag_name text, created_at timestamp )
CREATE TABLE social_media.conversations ( conversation_id text, created_at timestamp, last_message_at timestamp, is_group_chat boolean, group_name text )


[User] Give me a list of employees (first and last name) along with the count of appointments they have scheduled.

[Assistant]
SELECT e.first_name, e.last_name, COUNT(a.appointment_id) AS appointment_count
FROM government_services.employees e
LEFT JOIN government_services.appointments a ON e.employee_id = a.employee_id
GROUP BY e.employee_id, e.first_name, e.last_name;

[User] Only show employees who have scheduled at least 5 appointments.

[Assistant]
SELECT e.first_name, e.last_name, COUNT(a.appointment_id) AS appointment_count
FROM government_services.employees e
LEFT JOIN government_services.appointments a ON e.employee_id = a.employee_id
GROUP BY e.employee_id, e.first_name, e.last_name
HAVING COUNT(a.appointment_id) >= 5;

[User] Can you also show the average duration of their appointments in minutes?

[Assistant]
SELECT e.first_name, e.last_name, COUNT(a.appointment_id) AS appointment_count,
       AVG(EXTRACT(EPOCH FROM (a.scheduled_end_time - a.scheduled_start_time)) / 60) AS avg_duration_minutes
FROM government_services.employees e
LEFT JOIN government_services.appointments a ON e.employee_id = a.employee_id
GROUP BY e.employee_id, e.first_name, e.last_name
HAVING COUNT(a.appointment_id) >= 5;

[User] I got an error because some appointments have missing end times. Can you fix the query to only compute the average using appointments where both start and end times are present?

[Assistant]
SELECT e.first_name, e.last_name, COUNT(a.appointment_id) AS appointment_count,
       AVG(EXTRACT(EPOCH FROM (a.scheduled_end_time - a.scheduled_start_time)) / 60) AS avg_duration_minutes
FROM government_services.employees e
LEFT JOIN government_services.appointments a ON e.employee_id = a.employee_id AND a.scheduled_start_time IS NOT NULL AND a.scheduled_end_time IS NOT NULL
GROUP BY e.employee_id, e.first_name, e.last_name
HAVING COUNT(a.appointment_id) >= 5;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE government_services.citizens ( citizen_id text, national_id_number text, first_name text, last_name text, date_of_birth date, gender text, primary_address text, contact_email text, contact_phone text, registration_date timestamp, is_verified boolean )
CREATE TABLE government_services.documents ( document_id text, application_id text, citizen_id text, document_type text, file_reference text, upload_timestamp timestamp, expiry_date date, verification_status text, verified_by_employee_id text, verification_timestamp timestamp )
CREATE TABLE government_services.employees ( employee_id text, agency_id text, first_name text, last_name text, job_title text, department text, work_email text, work_phone text, hire_date date, termination_date date, access_level text, manager_employee_id text )
CREATE TABLE government_services.appointments ( appointment_id text, citizen_id text, employee_id text, location_id text, service_id text, scheduled_start_time timestamp, scheduled_end_time timestamp, purpose text, status text, booking_method text, created_at timestamp, notes text )


[User] 我想查看所有检查记录中检查员的ID和检查结果，同时统计每个检查员的检查次数。

[Assistant]
db.inspections.aggregate([
  {
    $group: {
      _id: '$inspector_employee_id',
      total_inspections: { $count: {} },
      results: { $push: '$result' }
    }
  },
  {
    $project: {
      inspector_employee_id: '$_id',
      total_inspections: 1,
      results: 1,
      _id: 0
    }
  }
]);

[User] 如果我想只统计检查结果为'Fail'的次数，应该怎么改？

[Assistant]
db.inspections.aggregate([
  {
    $match: {
      result: 'Fail'
    }
  },
  {
    $group: {
      _id: '$inspector_employee_id',
      failed_inspections: { $count: {} }
    }
  },
  {
    $project: {
      inspector_employee_id: '$_id',
      failed_inspections: 1,
      _id: 0
    }
  }
]);

System:
You are an expert in writing database language. You can write a corresponding database language query to answer the user's question based on the table structure described by the table creation statement.
##Table Structure
Collection 'inspections'. Document structure: { _id: <ObjectId (or inspection_id)>, inspection_id: String, build_id: String (reference), component_id: String (reference, optional), step_id: String (reference, optional), inspection_type: String, inspector_employee_id: String (reference), inspection_timestamp: ISODate, result: String, remarks: String }. Required: inspection_id, build_id, inspection_type, inspector_employee_id, inspection_timestamp, result. Indexes on build_id, component_id, step_id, inspector_employee_id, result.


[User] What is the fuel efficiency of the train car with car_id 'TC456'?

[Assistant] I'm sorry, but I don't have access to information about the fuel efficiency of specific train cars. The data available in the train_cars table only includes details such as car_id, train_id, car_number, car_type, class, capacity, and features. If you have another question or need assistance with something else, I'm happy to help.

System:
You are an SQL statement expert and you can refuse the user's question if the question is not related to the table structure. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE train_station_management.train_cars ( car_id.text, train_id.text, car_number.text, car_type.text, class.text, capacity.integer, features.text )


[User] For each user, show their username and the timestamp of their most recent notification. Include users who have never received notifications.

[Assistant] SELECT T1.username, max(T2.sent_at) FROM users AS T1 LEFT JOIN trading_platform.notifications AS T2 ON T1.user_id = T2.user_id GROUP BY T1.username

[User] Could you also include the total number of notifications for each user?

[Assistant] SELECT T1.username, count(T2.notification_id), max(T2.sent_at) FROM users AS T1 LEFT JOIN trading_platform.notifications AS T2 ON T1.user_id = T2.user_id GROUP BY T1.username

[User] Actually, only show users whose latest notification is unread.

[Assistant] WITH LatestNotification AS ( SELECT user_id, sent_at, read_at, ROW_NUMBER() OVER(PARTITION BY user_id ORDER BY sent_at DESC) AS rn FROM trading_platform.notifications ) SELECT T1.username, T2.sent_at FROM users AS T1 JOIN LatestNotification AS T2 ON T1.user_id = T2.user_id WHERE T2.rn = 1 AND T2.read_at IS NULL

[User] Also, include the count of unread notifications for these users.

[Assistant] WITH LatestNotification AS ( SELECT user_id, sent_at, read_at, ROW_NUMBER() OVER(PARTITION BY user_id ORDER BY sent_at DESC) AS rn FROM trading_platform.notifications ) SELECT T1.username, count(CASE WHEN T3.read_at IS NULL THEN T3.notification_id ELSE NULL END), T2.sent_at FROM users AS T1 JOIN LatestNotification AS T2 ON T1.user_id = T2.user_id AND T2.rn = 1 AND T2.read_at IS NULL JOIN trading_platform.notifications AS T3 ON T1.user_id = T3.user_id GROUP BY T1.username, T2.sent_at

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE trading_platform.notifications ( notification_id.text, user_id.text, message.text, sent_at.timestamp, read_at.timestamp )


[User] Show me the top 5 NFT collections with the highest floor price on Ethereum, along with their names and contract addresses.

[Assistant] SELECT name, contract_address, floor_price FROM nft_collections WHERE blockchain = 'ethereum' ORDER BY CAST(floor_price AS decimal) DESC LIMIT 5;

[User] Can you also include the banner image URL and filter to only show ERC721 collections?

[Assistant] SELECT name, contract_address, floor_price, banner_image_url FROM nft_collections WHERE blockchain = 'ethereum' AND erc_type = 'ERC721' ORDER BY CAST(floor_price AS decimal) DESC LIMIT 5;

[User] I think there's a typo in your query - it should be 'nft_collections' not 'nft_collections'. Also, can you join this with the nft_metadata table to include the average rarity score for these collections?

[Assistant] SELECT nc.name, nc.contract_address, nc.floor_price, nc.banner_image_url, AVG(nm.rarity_score) as avg_rarity_score FROM nft_collections nc JOIN nft_metadata nm ON nc.contract_address = nm.contract_address WHERE nc.blockchain = 'ethereum' AND nc.erc_type = 'ERC721' GROUP BY nc.name, nc.contract_address, nc.floor_price, nc.banner_image_url ORDER BY CAST(nc.floor_price AS decimal) DESC LIMIT 5;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE erc1155_approval_for_all (
    block_number bigint NOT NULL, -- Block number containing the transaction
    block_timestamp timestamp(3) NOT NULL, -- Timestamp of the block containing the transaction
    transaction_index integer NOT NULL, -- Index of the transaction within the block
    transaction_hash varchar(66) NOT NULL, -- Transaction hash
    log_index integer NOT NULL, -- Log index
    contract_address varchar(42) NOT NULL  -- Event contract address
)
CREATE TABLE erc20_balances ( block_number.bigint, contract_address.text, wallet_address.text, amount.text, pk.text )
CREATE TABLE erc20_balances_historical ( block_number bigint NOT NULL, contract_address varchar NOT NULL, wallet_address varchar NOT NULL, amount varchar NOT NULL, pk integer NOT NULL )
CREATE TABLE nft_metadata (
    blockchain varchar NOT NULL, -- blockchain fields for the functionType  in contract
    contract_address varchar NOT NULL, -- Contract address(with bloom filter)
    token_id varchar NOT NULL, -- The number of the token
    contract_name varchar NOT NULL, -- contract_name fields for the functionType  in contract
    erc_type varchar NOT NULL, -- The type of token
    amount bigint NOT NULL, -- amount fields for the functionType  in contract
    minter varchar NOT NULL, -- minter fields for the functionType  in contract
    owner varchar NOT NULL, -- owner fields for the functionType  in contract
    mint_block_number bigint NOT NULL, -- mint_block_number fields for the functionType  in contract
    mint_time bigint NOT NULL, -- mint_time fields for the functionType  in contract
    mint_transaction_hash varchar NOT NULL, -- mint_transaction_hash fields for the functionType  in contract
    mint_price varchar NOT NULL, -- mint_price fields for the functionType  in contract
    token_uri varchar NOT NULL, -- token_uri fields for the functionType  in contract
    metadata varchar NOT NULL, -- metadata fields for the functionType  in contract
    name varchar NOT NULL, -- name fields for the functionType  in contract
    image_uri varchar NOT NULL, -- image_uri fields for the functionType  in contract
    traits varchar NOT NULL, -- traits fields for the functionType  in contract
    updated_at bigint NOT NULL, -- updated_at fields for the functionType  in contract
    status varchar NOT NULL, -- status fields for the functionType  in contract
    rarity_score real NOT NULL, -- rarity_score fields for the functionType  in contract
    rarity_rank integer NOT NULL, -- rarity_rank fields for the functionType  in contract
    unique_attribute_count integer NOT NULL, -- unique_attribute_count fields for the functionType  in contract
    pk integer NOT NULL  -- Partition key for the table(floor(mint_time / 1000 / 86400 / 30))
)
CREATE TABLE nft_collections ( blockchain.text, contract_address.text, name.text, symbol.text, deploy_block_number.bigint, deploy_block_time.bigint, erc_type.text, owner.text, traits.text, description.text, slug.text, media_info.text, image_url.text, banner_image_url.text, updated_at.bigint, banner.text, token_count.bigint, floor_price.text, floor_price_symbol.text, floor_price_contract.text, pk.integer )
CREATE TABLE token_prices ( uuid varchar(36) NOT NULL, blockchain varchar(36) NOT NULL, address varchar(42) NOT NULL, decimals bigint NOT NULL, symbol varchar(36) NOT NULL, price real NOT NULL, timestamp timestamp(6) NOT NULL )
CREATE TABLE erc20_approval ( block_number bigint NOT NULL, block_timestamp timestamp(6) NOT NULL, transaction_index integer NOT NULL, transaction_hash varchar NOT NULL, log_index integer NOT NULL, contract_address varchar NOT NULL, pk integer NOT NULL )
CREATE TABLE token_info ( block_timestamp timestamp(3) NOT NULL, block_number bigint NOT NULL, tx_index integer NOT NULL, tx_hash varchar(66) NOT NULL, tick varchar NOT NULL, max_supply decimal(38,0) NOT NULL, lim decimal(38,0) NOT NULL, wlim decimal(38,0) NOT NULL, dec integer NOT NULL, creator varchar(42) NOT NULL )
CREATE TABLE mud_holesky_redstone (
    address varchar NOT NULL, -- address fields for the functionType  in contract
    table_id varchar NOT NULL, -- table_id fields for the functionType  in contract
    key_bytes varchar NOT NULL, -- key_bytes fields for the functionType  in contract
    key0 varchar NOT NULL, -- key0 fields for the functionType  in contract
    key1 varchar NOT NULL, -- key1 fields for the functionType  in contract
    static_data varchar NOT NULL, -- static_data fields for the functionType  in contract
    encoded_lengths varchar NOT NULL, -- encoded_lengths fields for the functionType  in contract
    dynamic_data varchar NOT NULL, -- dynamic_data fields for the functionType  in contract
    is_deleted boolean NOT NULL, -- is_deleted fields for the functionType  in contract
    block_number bigint NOT NULL, -- Block number uniquely identifying the block
    log_index bigint NOT NULL  -- Index of the log within the transaction
)
CREATE TABLE token_info_bitcoin ( block_timestamp timestamp, block_number bigint, tx_index integer, tx_hash varchar, tick varchar, max_supply decimal, lim decimal, wlim decimal, dec integer, creator varchar )
CREATE TABLE token_info_avalanche ( block_timestamp timestamp, block_number bigint, tx_index integer, tx_hash text, tick text, max_supply decimal, lim decimal, wlim decimal, dec integer, creator text, minted decimal, holders decimal, txs decimal, updated_timestamp timestamp, completed_timestamp timestamp, id text )


[User] For each user, count the number of mutual follow relationships they are involved in (users they follow and who also follow them back). List user_id and mutual_count.

[Assistant]
SELECT
  f1.follower_user_id AS user_id,
  COUNT(*)            AS mutual_count
FROM social_media.follows f1
JOIN social_media.follows f2
  ON f1.follower_user_id = f2.following_user_id
 AND f1.following_user_id = f2.follower_user_id
GROUP BY f1.follower_user_id;

[User] Now only include users with mutual_count >= 3 and order by mutual_count descending.

[Assistant]
SELECT
  f1.follower_user_id AS user_id,
  COUNT(*)            AS mutual_count
FROM social_media.follows f1
JOIN social_media.follows f2
  ON f1.follower_user_id = f2.following_user_id
 AND f1.following_user_id = f2.follower_user_id
GROUP BY f1.follower_user_id
HAVING COUNT(*) >= 3
ORDER BY mutual_count DESC;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE social_media.follows ( follow_id character varying(64) NOT NULL, follower_user_id character varying(64) NOT NULL, following_user_id character varying(64) NOT NULL, created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, PRIMARY KEY (follow_id), CONSTRAINT unique_follow UNIQUE (follower_user_id, following_user_id) )


[User] Show me the wallet addresses that have both sent and received tokens in the same transaction.

[Assistant] SELECT DISTINCT w.address FROM web3.wallets w JOIN web3.token_transfers tt1 ON w.address = tt1.from_address JOIN web3.token_transfers tt2 ON w.address = tt2.to_address WHERE tt1.transaction_id = tt2.transaction_id;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE web3.events (
    event_id character varying(64) NOT NULL,  -- unique identifier for the event
    contract_id character varying(64) NOT NULL, -- identifier of the contract emitting the event
    event_name character varying(128) NOT NULL, -- name of the event
    data text NOT NULL, -- data payload of the event
    emitted_at timestamp NOT NULL, -- time when the event was emitted
    transaction_id character varying(64) NOT NULL, -- identifier of the transaction that triggered the event
    log_index integer NOT NULL, -- index of the event log in the transaction
    PRIMARY KEY (event_id)
)
CREATE TABLE web3.transactions (
    transaction_id character varying(64) NOT NULL,  -- unique identifier for the transaction
    from_address character varying(128) NOT NULL, -- address of the sender
    to_address character varying(128), -- address of the receiver (can be null for contract deployment)
    value numeric(38,14) NOT NULL, -- value transferred
    gas_used integer NOT NULL, -- amount of gas used by the transaction
    gas_price numeric(38,14) NOT NULL, -- price of gas at the time of the transaction
    block_number integer NOT NULL, -- block number containing the transaction
    timestamp timestamp NOT NULL, -- time when the transaction was mined
    input_data text, -- input data of the transaction (can be null)
    status character varying(32) NOT NULL, -- status of the transaction (e.g., success, failed)
    nonce integer NOT NULL, -- nonce of the sender at the time of the transaction
    PRIMARY KEY (transaction_id)
)
CREATE TABLE web3.tokens (
    token_id character varying(64) NOT NULL,  -- unique identifier for the token
    contract_address character varying(128) NOT NULL, -- address of the token contract
    token_name character varying(128) NOT NULL, -- name of the token
    token_symbol character varying(32) NOT NULL, -- symbol of the token
    decimals integer NOT NULL, -- number of decimals for the token
    total_supply numeric(38,14) NOT NULL, -- total supply of the token
    PRIMARY KEY (token_id)
)
CREATE TABLE web3.token_transfers (
    transfer_id character varying(64) NOT NULL,  -- unique identifier for the transfer
    token_id character varying(64) NOT NULL, -- identifier of the token being transferred
    from_address character varying(128) NOT NULL, -- address of the sender
    to_address character varying(128) NOT NULL, -- address of the receiver
    value numeric(38,14) NOT NULL, -- amount of tokens transferred
    transaction_id character varying(64) NOT NULL, -- identifier of the transaction containing the transfer
    log_index integer NOT NULL, -- index of the transfer log in the transaction
    PRIMARY KEY (transfer_id)
)
CREATE TABLE web3.wallets (
    wallet_id character varying(64) NOT NULL,  -- unique identifier for the wallet
    user_id character varying(64) NOT NULL, -- identifier of the user owning the wallet
    address character varying(128) NOT NULL, -- address of the wallet
    private_key text NOT NULL, -- private key of the wallet
    created_at timestamp NOT NULL, -- time when the wallet was created
    PRIMARY KEY (wallet_id)
)


[User] Provide a count of how many peers were last seen on each distinct day recorded in the system.

[Assistant] SELECT DATE(last_seen), COUNT(*) FROM trading_platform.peers GROUP BY DATE(last_seen) ORDER BY DATE(last_seen);

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE trading_platform.users ( user_id text, username text, email text, password_hash text, created_at timestamp )
CREATE TABLE trading_platform.wallets ( wallet_id text, user_id text, address text, private_key text, created_at timestamp )
CREATE TABLE trading_platform.orders ( order_id text, user_id text, wallet_id text, asset_id text, order_type text, quantity numeric, price numeric, status text, created_at timestamp )
CREATE TABLE trading_platform.trades ( trade_id text, order_id text, buyer_id text, seller_id text, asset_id text, quantity numeric, price numeric, traded_at timestamp )
CREATE TABLE trading_platform.assets ( asset_id text, name text, symbol text, type text )
CREATE TABLE trading_platform.utxos ( utxo_id text, transaction_id text, output_index integer, address text, amount numeric, spent boolean )
CREATE TABLE trading_platform.dapps ( dapp_id text, name text, description text, url text )
CREATE TABLE trading_platform.peers ( peer_id text, ip_address text, port integer, last_seen timestamp )
CREATE TABLE trading_platform.kyc_audit ( kyc_audit_id text, user_id text, status text, reviewed_at timestamp )
CREATE TABLE trading_platform.logs ( log_id text, user_id text, action text, details text, logged_at timestamp )
CREATE TABLE trading_platform.notifications ( notification_id text, user_id text, message text, sent_at timestamp, read_at timestamp )


[User] Get name pairs of achievements for each game where one is hidden and the other is visible.

[Assistant]
SELECT a.achievement_id AS hidden_achievement_id, a.name AS hidden_name, b.achievement_id AS visible_achievement_id, b.name AS visible_name
FROM gaming_technology.achievements a
JOIN gaming_technology.achievements b
  ON a.game_id = b.game_id
  AND a.hidden = true
  AND b.hidden = false;

[User] Include the game_id at the start of each row and order the results by game_id.

[Assistant]
SELECT a.game_id, a.achievement_id AS hidden_achievement_id, a.name AS hidden_name, b.achievement_id AS visible_achievement_id, b.name AS visible_name
FROM gaming_technology.achievements a
JOIN gaming_technology.achievements b
  ON a.game_id = b.game_id
  AND a.hidden = true
  AND b.hidden = false
ORDER BY a.game_id ASC;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE gaming_technology.achievements ( achievement_id uuid, game_id uuid, name text, description text, icon_url text, points integer, hidden boolean )


[User] For each employee who has verified more than one document, list their employee ID, the first document they verified, and the next document they verified, along with both verification timestamps.

[Assistant]
SELECT
  d1.verified_by_employee_id AS employee_id,
  d1.document_id AS first_verified_document,
  d1.verification_timestamp AS first_verification_time,
  d2.document_id AS next_verified_document,
  d2.verification_timestamp AS next_verification_time
FROM government_services.documents d1
JOIN government_services.documents d2
  ON d1.verified_by_employee_id = d2.verified_by_employee_id
  AND d2.verification_timestamp > d1.verification_timestamp
WHERE d1.verification_status = 'Verified'
  AND d2.verification_status = 'Verified';

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE government_services.documents ( document_id character varying(64) NOT NULL, application_id character varying(64), citizen_id character varying(64) NOT NULL, document_type character varying(100) NOT NULL, file_reference text NOT NULL, upload_timestamp timestamp NOT NULL, expiry_date date, verification_status character varying(30) DEFAULT 'Pending', verified_by_employee_id character varying(64), verification_timestamp timestamp, PRIMARY KEY (document_id) )


[User] What is the fuel consumption rate of train number T1234?

[Assistant] I'm sorry, but I don't have information on the fuel consumption rate of train number T1234. The data available in the system only includes details such as train ID, model, manufacturer, year manufactured, capacity, status, and maintenance dates.

System:
You are an SQL statement expert and you can refuse the user's question if the question is not related to the table structure. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE train_station_management.trains ( train_id character varying(64) NOT NULL, train_number character varying(32) NOT NULL, model character varying(128), manufacturer character varying(128), year_manufactured integer, capacity integer NOT NULL, status character varying(32) NOT NULL DEFAULT 'Active', last_maintenance_date date, next_maintenance_date date, PRIMARY KEY (train_id), UNIQUE (train_number) )