question stringlengths 22 99 | sql stringlengths 34 502 | schema_context stringclasses 5
values | domain stringclasses 5
values | difficulty stringclasses 3
values | query_type stringclasses 6
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Get all suppliers from the United States. | SELECT * FROM suppliers WHERE country = 'United States'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | select |
List all customers from Germany. | SELECT * FROM customers WHERE country = 'Germany'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | select |
List all product categories. | SELECT DISTINCT category FROM products; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | select |
How many customers are from India? | SELECT COUNT(*) AS customer_count FROM customers WHERE country = 'India'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
What is the average price of 'Home' products? | SELECT AVG(price) AS avg_price FROM products WHERE category = 'Home'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
Find all orders with status 'pending'. | SELECT * FROM orders WHERE status = 'pending'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | select |
Find all cancelled orders. | SELECT * FROM orders WHERE status = 'cancelled'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | select |
What is the total revenue from 'pending' orders? | SELECT SUM(total_amount) AS revenue FROM orders WHERE status = 'pending'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
How many customers are there in total? | SELECT COUNT(*) AS total_customers FROM customers; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
What is the average price of 'Beauty' products? | SELECT AVG(price) AS avg_price FROM products WHERE category = 'Beauty'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
How many products are in the 'Clothing' category? | SELECT COUNT(*) FROM products WHERE category = 'Clothing'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
How many customers are from Germany? | SELECT COUNT(*) AS customer_count FROM customers WHERE country = 'Germany'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
What is the average price of 'Books' products? | SELECT AVG(price) AS avg_price FROM products WHERE category = 'Books'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
Show all orders placed in 2024. | SELECT * FROM orders WHERE order_date >= '2024-01-01' AND order_date < '2025-01-01'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | select |
What is the total revenue in 2024? | SELECT SUM(total_amount) AS revenue FROM orders WHERE EXTRACT(YEAR FROM order_date) = 2024; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
What is the total revenue from 'shipped' orders? | SELECT SUM(total_amount) AS revenue FROM orders WHERE status = 'shipped'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
Get the top 10 most expensive products. | SELECT * FROM products ORDER BY price DESC LIMIT 10; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | select |
How many customers are from Italy? | SELECT COUNT(*) AS customer_count FROM customers WHERE country = 'Italy'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
How many orders were placed in 2023? | SELECT COUNT(*) AS order_count FROM orders WHERE EXTRACT(YEAR FROM order_date) = 2023; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
How many orders were placed in 2024? | SELECT COUNT(*) AS order_count FROM orders WHERE EXTRACT(YEAR FROM order_date) = 2024; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
Show the names and emails of all customers. | SELECT name, email FROM customers; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | select |
How many products are in the 'Home' category? | SELECT COUNT(*) FROM products WHERE category = 'Home'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
Find customers who spent more than 1000 in total. | SELECT * FROM customers WHERE total_spent > 1000; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | select |
Insert a new customer record. | INSERT INTO customers (name, email, city, country, created_at, total_spent)
VALUES ('Alice Johnson', 'alice@example.com', 'London', 'United Kingdom', CURRENT_DATE, 0); | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | select |
What is the total revenue from 'processing' orders? | SELECT SUM(total_amount) AS revenue FROM orders WHERE status = 'processing'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
How many customers are from United Kingdom? | SELECT COUNT(*) AS customer_count FROM customers WHERE country = 'United Kingdom'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
List the 10 most recent orders with customer name and status. | SELECT o.order_id, c.name, o.order_date, o.status, o.total_amount
FROM orders o JOIN customers c ON o.customer_id = c.customer_id
ORDER BY o.order_date DESC LIMIT 10; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | join |
How many orders are in 'shipped' status? | SELECT COUNT(*) AS shipped_count FROM orders WHERE status = 'shipped'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
How many customers are from Japan? | SELECT COUNT(*) AS customer_count FROM customers WHERE country = 'Japan'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
How many customers are from Brazil? | SELECT COUNT(*) AS customer_count FROM customers WHERE country = 'Brazil'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
How many products are in the 'Sports' category? | SELECT COUNT(*) FROM products WHERE category = 'Sports'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
What is the average price of 'Clothing' products? | SELECT AVG(price) AS avg_price FROM products WHERE category = 'Clothing'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
List products with stock quantity below 20. | SELECT name, stock_quantity FROM products WHERE stock_quantity < 20; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | select |
How many customers are from Canada? | SELECT COUNT(*) AS customer_count FROM customers WHERE country = 'Canada'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
How many products are in the 'Beauty' category? | SELECT COUNT(*) FROM products WHERE category = 'Beauty'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
What is the total revenue in 2023? | SELECT SUM(total_amount) AS revenue FROM orders WHERE EXTRACT(YEAR FROM order_date) = 2023; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
What is the most expensive product price? | SELECT MAX(price) AS max_price FROM products; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
How many products are in the 'Electronics' category? | SELECT COUNT(*) FROM products WHERE category = 'Electronics'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
What is the total revenue in 2022? | SELECT SUM(total_amount) AS revenue FROM orders WHERE EXTRACT(YEAR FROM order_date) = 2022; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
How many customers are from Australia? | SELECT COUNT(*) AS customer_count FROM customers WHERE country = 'Australia'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
What is the total revenue from 'delivered' orders? | SELECT SUM(total_amount) AS revenue FROM orders WHERE status = 'delivered'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
What is the average price of 'Sports' products? | SELECT AVG(price) AS avg_price FROM products WHERE category = 'Sports'; | customers(customer_id, name, email, city, country, created_at, total_spent)
orders(order_id, customer_id, order_date, status, total_amount, shipping_city)
order_items(item_id, order_id, product_id, quantity, unit_price)
products(product_id, name, category, price, stock_quantity, supplier_id)
suppliers(supplie... | ecommerce | easy | aggregate |
List all patients with 'public' insurance. | SELECT * FROM patients WHERE insurance_type = 'public'; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | select |
What is the average prescription duration in days? | SELECT AVG(duration_days) AS avg_duration FROM prescriptions; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | aggregate |
Which city has the most patients? | SELECT city, COUNT(*) AS patient_count FROM patients GROUP BY city ORDER BY patient_count DESC LIMIT 1; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | aggregate |
What is the average years of experience for Pediatrics doctors? | SELECT AVG(years_experience) FROM doctors WHERE specialty = 'Pediatrics'; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | aggregate |
Find the most prescribed medication. | SELECT medication, COUNT(*) AS prescription_count
FROM prescriptions GROUP BY medication ORDER BY prescription_count DESC LIMIT 1; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | aggregate |
Find all patients whose name contains 'John'. | SELECT * FROM patients WHERE name ILIKE '%john%'; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | select |
What is the average years of experience for Cardiology doctors? | SELECT AVG(years_experience) FROM doctors WHERE specialty = 'Cardiology'; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | aggregate |
Get all female patients. | SELECT * FROM patients WHERE gender = 'F'; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | select |
How many doctors specialize in Neurology? | SELECT COUNT(*) FROM doctors WHERE specialty = 'Neurology'; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | aggregate |
How many doctors specialize in Orthopedics? | SELECT COUNT(*) FROM doctors WHERE specialty = 'Orthopedics'; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | aggregate |
What is the average years of experience for Oncology doctors? | SELECT AVG(years_experience) FROM doctors WHERE specialty = 'Oncology'; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | aggregate |
How many doctors specialize in Dermatology? | SELECT COUNT(*) FROM doctors WHERE specialty = 'Dermatology'; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | aggregate |
Find all appointments scheduled for today. | SELECT * FROM appointments WHERE appointment_date = CURRENT_DATE; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | select |
Find all confirmed appointments. | SELECT * FROM appointments WHERE status = 'confirmed'; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | select |
What is the average years of experience for Orthopedics doctors? | SELECT AVG(years_experience) FROM doctors WHERE specialty = 'Orthopedics'; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | aggregate |
How many male patients are there? | SELECT COUNT(*) FROM patients WHERE gender = 'M'; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | aggregate |
List all patients with 'none' insurance. | SELECT * FROM patients WHERE insurance_type = 'none'; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | select |
What is the average years of experience for Dermatology doctors? | SELECT AVG(years_experience) FROM doctors WHERE specialty = 'Dermatology'; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | aggregate |
List hospitals with a rating above 4. | SELECT * FROM hospitals WHERE rating > 4; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | select |
What is the average years of experience for Neurology doctors? | SELECT AVG(years_experience) FROM doctors WHERE specialty = 'Neurology'; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | aggregate |
How many doctors specialize in Oncology? | SELECT COUNT(*) FROM doctors WHERE specialty = 'Oncology'; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | aggregate |
How many doctors specialize in Cardiology? | SELECT COUNT(*) FROM doctors WHERE specialty = 'Cardiology'; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | aggregate |
How many doctors specialize in Pediatrics? | SELECT COUNT(*) FROM doctors WHERE specialty = 'Pediatrics'; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | aggregate |
How many hospitals have more than 200 beds? | SELECT COUNT(*) FROM hospitals WHERE beds > 200; | patients(patient_id, name, date_of_birth, gender, city, insurance_type)
doctors(doctor_id, name, specialty, hospital_id, years_experience)
appointments(appointment_id, patient_id, doctor_id, appointment_date, status, diagnosis)
hospitals(hospital_id, name, city, beds, rating)
prescriptions(prescription_id, ap... | healthcare | easy | aggregate |
What is the average session duration on desktop? | SELECT AVG(EXTRACT(EPOCH FROM (end_time - start_time))) AS avg_duration_seconds
FROM sessions WHERE device = 'desktop'; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | aggregate |
How many 'search' events occurred in the last 30 days? | SELECT COUNT(*) FROM events
WHERE event_type = 'search' AND event_date >= CURRENT_DATE - INTERVAL '30 days'; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | aggregate |
How many users are on the 'pro' plan? | SELECT COUNT(*) FROM users WHERE plan = 'pro'; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | aggregate |
How many users are on the 'basic' plan? | SELECT COUNT(*) FROM users WHERE plan = 'basic'; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | aggregate |
How many 'signup' events occurred in the last 30 days? | SELECT COUNT(*) FROM events
WHERE event_type = 'signup' AND event_date >= CURRENT_DATE - INTERVAL '30 days'; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | aggregate |
How many sessions were from desktop? | SELECT COUNT(*) FROM sessions WHERE device = 'desktop'; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | aggregate |
What is the average session duration on mobile? | SELECT AVG(EXTRACT(EPOCH FROM (end_time - start_time))) AS avg_duration_seconds
FROM sessions WHERE device = 'mobile'; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | aggregate |
List all users on the 'pro' plan. | SELECT * FROM users WHERE plan = 'pro'; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | select |
How many 'purchase' events occurred in the last 30 days? | SELECT COUNT(*) FROM events
WHERE event_type = 'purchase' AND event_date >= CURRENT_DATE - INTERVAL '30 days'; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | aggregate |
How many sessions were from tablet? | SELECT COUNT(*) FROM sessions WHERE device = 'tablet'; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | aggregate |
What is the average session duration on tablet? | SELECT AVG(EXTRACT(EPOCH FROM (end_time - start_time))) AS avg_duration_seconds
FROM sessions WHERE device = 'tablet'; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | aggregate |
How many sessions were from mobile? | SELECT COUNT(*) FROM sessions WHERE device = 'mobile'; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | aggregate |
How many users are on the 'free' plan? | SELECT COUNT(*) FROM users WHERE plan = 'free'; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | aggregate |
How many 'page_view' events occurred in the last 30 days? | SELECT COUNT(*) FROM events
WHERE event_type = 'page_view' AND event_date >= CURRENT_DATE - INTERVAL '30 days'; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | aggregate |
Find all active users. | SELECT * FROM users WHERE is_active = TRUE; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | select |
Find the top 5 most visited pages. | SELECT page, COUNT(*) AS views FROM events WHERE event_type = 'page_view'
GROUP BY page ORDER BY views DESC LIMIT 5; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | aggregate |
Find users who signed up after January 1, 2023. | SELECT * FROM users WHERE signup_date > '2023-01-01'; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | select |
Show all page view events. | SELECT * FROM events WHERE event_type = 'page_view'; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | select |
How many 'click' events occurred in the last 30 days? | SELECT COUNT(*) FROM events
WHERE event_type = 'click' AND event_date >= CURRENT_DATE - INTERVAL '30 days'; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | aggregate |
Delete all sessions that ended more than one year ago. | DELETE FROM sessions
WHERE end_time < NOW() - INTERVAL '1 year'; | events(event_id, user_id, event_type, event_date, page, session_id, duration_seconds)
users(user_id, username, signup_date, plan, country, is_active)
sessions(session_id, user_id, start_time, end_time, device, browser)
pages(page_id, url, title, category, created_at)
conversions(conversion_id, user_id, event_... | analytics | easy | select |
Find all employees who changed departments in the last year. | SELECT e.name, e.department_id, e.hire_date
FROM employees e
WHERE e.hire_date >= CURRENT_DATE - INTERVAL '1 year'; | employees(employee_id, name, department_id, manager_id, hire_date, salary, city)
departments(department_id, name, location, budget, head_count)
projects(project_id, name, department_id, start_date, end_date, budget)
assignments(assignment_id, employee_id, project_id, role, hours_per_week)
performance_reviews(... | hr | easy | select |
What is the average bonus paid in 2022? | SELECT AVG(bonus) FROM performance_reviews WHERE review_year = 2022; | employees(employee_id, name, department_id, manager_id, hire_date, salary, city)
departments(department_id, name, location, budget, head_count)
projects(project_id, name, department_id, start_date, end_date, budget)
assignments(assignment_id, employee_id, project_id, role, hours_per_week)
performance_reviews(... | hr | easy | aggregate |
Find all employees with a performance rating of 5. | SELECT e.name, pr.review_year, pr.bonus
FROM employees e JOIN performance_reviews pr ON e.employee_id = pr.employee_id
WHERE pr.rating = 5; | employees(employee_id, name, department_id, manager_id, hire_date, salary, city)
departments(department_id, name, location, budget, head_count)
projects(project_id, name, department_id, start_date, end_date, budget)
assignments(assignment_id, employee_id, project_id, role, hours_per_week)
performance_reviews(... | hr | easy | join |
List all employees in the Engineering department. | SELECT e.* FROM employees e JOIN departments d ON e.department_id = d.department_id WHERE d.name = 'Engineering'; | employees(employee_id, name, department_id, manager_id, hire_date, salary, city)
departments(department_id, name, location, budget, head_count)
projects(project_id, name, department_id, start_date, end_date, budget)
assignments(assignment_id, employee_id, project_id, role, hours_per_week)
performance_reviews(... | hr | easy | select |
Find all employees with a performance rating of 1. | SELECT e.name, pr.review_year, pr.bonus
FROM employees e JOIN performance_reviews pr ON e.employee_id = pr.employee_id
WHERE pr.rating = 1; | employees(employee_id, name, department_id, manager_id, hire_date, salary, city)
departments(department_id, name, location, budget, head_count)
projects(project_id, name, department_id, start_date, end_date, budget)
assignments(assignment_id, employee_id, project_id, role, hours_per_week)
performance_reviews(... | hr | easy | join |
What is the average salary of all employees? | SELECT AVG(salary) AS avg_salary FROM employees; | employees(employee_id, name, department_id, manager_id, hire_date, salary, city)
departments(department_id, name, location, budget, head_count)
projects(project_id, name, department_id, start_date, end_date, budget)
assignments(assignment_id, employee_id, project_id, role, hours_per_week)
performance_reviews(... | hr | easy | aggregate |
Find all employees with a performance rating of 2. | SELECT e.name, pr.review_year, pr.bonus
FROM employees e JOIN performance_reviews pr ON e.employee_id = pr.employee_id
WHERE pr.rating = 2; | employees(employee_id, name, department_id, manager_id, hire_date, salary, city)
departments(department_id, name, location, budget, head_count)
projects(project_id, name, department_id, start_date, end_date, budget)
assignments(assignment_id, employee_id, project_id, role, hours_per_week)
performance_reviews(... | hr | easy | join |
List all employees hired in 2022. | SELECT * FROM employees WHERE hire_date >= '2022-01-01' AND hire_date < '2023-01-01'; | employees(employee_id, name, department_id, manager_id, hire_date, salary, city)
departments(department_id, name, location, budget, head_count)
projects(project_id, name, department_id, start_date, end_date, budget)
assignments(assignment_id, employee_id, project_id, role, hours_per_week)
performance_reviews(... | hr | easy | select |
Find all employees with a performance rating of 3. | SELECT e.name, pr.review_year, pr.bonus
FROM employees e JOIN performance_reviews pr ON e.employee_id = pr.employee_id
WHERE pr.rating = 3; | employees(employee_id, name, department_id, manager_id, hire_date, salary, city)
departments(department_id, name, location, budget, head_count)
projects(project_id, name, department_id, start_date, end_date, budget)
assignments(assignment_id, employee_id, project_id, role, hours_per_week)
performance_reviews(... | hr | easy | join |
What is the average bonus paid in 2024? | SELECT AVG(bonus) FROM performance_reviews WHERE review_year = 2024; | employees(employee_id, name, department_id, manager_id, hire_date, salary, city)
departments(department_id, name, location, budget, head_count)
projects(project_id, name, department_id, start_date, end_date, budget)
assignments(assignment_id, employee_id, project_id, role, hours_per_week)
performance_reviews(... | hr | easy | aggregate |
Find employees who received a performance rating of 5. | SELECT e.name FROM employees e JOIN performance_reviews pr ON e.employee_id = pr.employee_id WHERE pr.rating = 5; | employees(employee_id, name, department_id, manager_id, hire_date, salary, city)
departments(department_id, name, location, budget, head_count)
projects(project_id, name, department_id, start_date, end_date, budget)
assignments(assignment_id, employee_id, project_id, role, hours_per_week)
performance_reviews(... | hr | easy | select |
Find employees with salary above 80000. | SELECT * FROM employees WHERE salary > 80000; | employees(employee_id, name, department_id, manager_id, hire_date, salary, city)
departments(department_id, name, location, budget, head_count)
projects(project_id, name, department_id, start_date, end_date, budget)
assignments(assignment_id, employee_id, project_id, role, hours_per_week)
performance_reviews(... | hr | easy | select |
Show all projects with a budget over 500000. | SELECT * FROM projects WHERE budget > 500000; | employees(employee_id, name, department_id, manager_id, hire_date, salary, city)
departments(department_id, name, location, budget, head_count)
projects(project_id, name, department_id, start_date, end_date, budget)
assignments(assignment_id, employee_id, project_id, role, hours_per_week)
performance_reviews(... | hr | easy | select |
Find all warehouses in the United States. | SELECT * FROM warehouses WHERE country = 'United States'; | warehouses(warehouse_id, name, city, country, capacity)
items(item_id, name, sku, category, unit_cost, reorder_point)
stock(stock_id, item_id, warehouse_id, quantity, last_updated)
movements(movement_id, item_id, warehouse_id, movement_type, quantity, movement_date)
vendors(vendor_id, name, country, lead_time... | inventory | easy | select |
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