{
  "exact_match": 0.7833333333333333,
  "n": 60,
  "rows": [
    {
      "id": "ex_14b7cfd991612ffb",
      "dialect": "postgres",
      "difficulty": "medium",
      "question": "Write a PostgreSQL query for: Find staff with last_name beginning with s ignoring case.",
      "gold": "SELECT employee_id, first_name, last_name FROM employees WHERE last_name ILIKE 'S%';",
      "pred": "SELECT employee_id, first_name, last_name FROM employees WHERE last_name LIKE ' ' || first_name;",
      "match": false
    },
    {
      "id": "ex_c73896e0f574d7cf",
      "dialect": "oracle",
      "difficulty": "easy",
      "question": "Number of four-credit courses. Return only the SQL.",
      "gold": "SELECT COUNT(*) AS course_count FROM courses WHERE credits = 4;",
      "pred": "SELECT COUNT(*) AS course_count FROM courses WHERE credits = 4;",
      "match": true
    },
    {
      "id": "ex_a8b9ea352a33e377",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "is_available true. Return only the SQL.",
      "gold": "SELECT agent_id, agent_name, team FROM agents WHERE is_available = 1;",
      "pred": "SELECT agent_id, agent_name, team FROM agents WHERE is_available = 1;",
      "match": true
    },
    {
      "id": "ex_cda1fdc3f8926260",
      "dialect": "oracle",
      "difficulty": "easy",
      "question": "How many cancelled orders are there?",
      "gold": "SELECT COUNT(*) AS cancelled_count FROM orders WHERE status = 'Cancelled';",
      "pred": "SELECT COUNT(*) AS cancelled_count FROM orders WHERE status = 'Cancelled';",
      "match": true
    },
    {
      "id": "ex_805236d32a829662",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Write a Oracle query for: Staff whose department_id is 10, 20 or 30.",
      "gold": "SELECT employee_id, first_name, last_name, department_id FROM employees WHERE department_id IN (10, 20, 30);",
      "pred": "SELECT employee_id, first_name, last_name, department_id FROM employees WHERE department_id IN (10, 20, 30);",
      "match": true
    },
    {
      "id": "ex_0f91611416b0b790",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Return a full_name column. Return only the SQL.",
      "gold": "SELECT first_name || ' ' || last_name AS full_name FROM employees;",
      "pred": "SELECT first_name || ' ' || last_name AS full_name FROM employees;",
      "match": true
    },
    {
      "id": "ex_2080c243f8214291",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Filter employees to those three departments. Return only the SQL.",
      "gold": "SELECT employee_id, first_name, last_name, department_id FROM employees WHERE department_id IN (10, 20, 30);",
      "pred": "SELECT employee_id, first_name, last_name, department_id FROM employees WHERE department_id IN (10, 20, 30);",
      "match": true
    },
    {
      "id": "ex_2bcfd4ac5124c8cf",
      "dialect": "postgres",
      "difficulty": "easy",
      "question": "Write a PostgreSQL query for: List suppliers from fastest to slowest lead_time_days.",
      "gold": "SELECT supplier_id, supplier_name, lead_time_days FROM suppliers ORDER BY lead_time_days ASC;",
      "pred": "SELECT supplier_id, supplier_name, lead_time_days FROM suppliers ORDER BY lead_time_days ASC LIMIT 10;",
      "match": false
    },
    {
      "id": "ex_67006ffcbb9dd990",
      "dialect": "postgres",
      "difficulty": "easy",
      "question": "Write a PostgreSQL query for: Show customer_name and country.",
      "gold": "SELECT customer_name, country FROM customers;",
      "pred": "SELECT customer_name, country FROM customers;",
      "match": true
    },
    {
      "id": "ex_8fcddf883ae71117",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Write a Oracle query for: account_id having COUNT(*) > 20 in transactions.",
      "gold": "SELECT account_id, COUNT(*) AS txn_count FROM transactions GROUP BY account_id HAVING COUNT(*) > 20;",
      "pred": "SELECT account_id, COUNT(*) AS txn_count FROM transactions GROUP BY account_id HAVING COUNT(*) > 20;",
      "match": true
    },
    {
      "id": "ex_0e773b38db423d2b",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "List staff without a manager. Return only the SQL.",
      "gold": "SELECT employee_id, first_name, last_name FROM employees WHERE manager_id IS NULL;",
      "pred": "SELECT employee_id, first_name, last_name FROM employees WHERE manager_id IS NULL;",
      "match": true
    },
    {
      "id": "ex_c0b3b7c1bd7f1eb4",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Write a Oracle query for: Set status DELIVERED and delivered_on to today for shipment 77.",
      "gold": "UPDATE shipments SET status = 'DELIVERED', delivered_on = TRUNC(SYSDATE) WHERE shipment_id = 77;",
      "pred": "UPDATE shipments SET status = 'DELIVERED', delivered_on = TRUNC(SYSDATE) WHERE shipment_id = 77;",
      "match": true
    },
    {
      "id": "ex_5c388e3163e58d6d",
      "dialect": "postgres",
      "difficulty": "medium",
      "question": "Write a PostgreSQL query for: updated_at on the current date.",
      "gold": "SELECT stock_id, warehouse_id, item_id, qty_on_hand FROM stock WHERE updated_at::date = CURRENT_DATE;",
      "pred": "SELECT txn_id, warehouse_id, item_id, created_at FROM transactions WHERE created_at >= NOW() - INTERVAL '24 hours';",
      "match": false
    },
    {
      "id": "ex_4f23cbbbfeffd6ed",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Employees who have no manager.",
      "gold": "SELECT employee_id, first_name, last_name FROM employees WHERE manager_id IS NULL;",
      "pred": "SELECT employee_id, first_name, last_name FROM employees WHERE manager_id IS NULL;",
      "match": true
    },
    {
      "id": "ex_fd5c29ca20aca25c",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Busy accounts, over 20 txns. Return only the SQL.",
      "gold": "SELECT account_id, COUNT(*) AS txn_count FROM transactions GROUP BY account_id HAVING COUNT(*) > 20;",
      "pred": "SELECT account_id, COUNT(*) AS txn_count FROM transactions GROUP BY account_id HAVING COUNT(*) > 20;",
      "match": true
    },
    {
      "id": "ex_b3743f6061f84998",
      "dialect": "oracle",
      "difficulty": "hard",
      "question": "Using a CTE, customers with more than 3 orders.",
      "gold": "WITH order_counts AS (SELECT customer_id, COUNT(*) AS order_count FROM orders GROUP BY customer_id) SELECT c.customer_name, oc.order_count FROM order_counts oc JOIN customers c ON c.customer_id = oc.customer_id WHERE oc.order_count > 3;",
      "pred": "WITH order_counts AS (SELECT customer_id, COUNT(*) AS order_count FROM orders GROUP BY customer_id) SELECT c.customer_name, oc.order_count FROM order_counts oc JOIN customers c ON c.customer_id = oc.customer_id WHERE oc.order_count > 3;",
      "match": true
    },
    {
      "id": "ex_94effceddcf7fcf8",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Employees in departments 10, 20, or 30.",
      "gold": "SELECT employee_id, first_name, last_name, department_id FROM employees WHERE department_id IN (10, 20, 30);",
      "pred": "SELECT employee_id, first_name, last_name, department_id FROM employees WHERE department_id IN (10, 20, 30);",
      "match": true
    },
    {
      "id": "ex_969dc45c17fff70b",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Stock rows updated today.",
      "gold": "SELECT stock_id, warehouse_id, item_id, qty_on_hand FROM stock WHERE TRUNC(updated_at) = TRUNC(SYSDATE);",
      "pred": "SELECT w.warehouse_id, w.warehouse_name FROM warehouses w WHERE EXISTS (SELECT 1 FROM stock s WHERE s.warehouse_id = w.warehouse_id AND s.item_id = 42);",
      "match": false
    },
    {
      "id": "ex_6c0dff5f6a58ac7c",
      "dialect": "postgres",
      "difficulty": "medium",
      "question": "Employees whose last name starts with S, case-insensitive.",
      "gold": "SELECT employee_id, first_name, last_name FROM employees WHERE last_name ILIKE 'S%';",
      "pred": "SELECT employee_id, first_name, last_name FROM employees WHERE last_name LIKE 'S%';",
      "match": false
    },
    {
      "id": "ex_53abe765235df5c7",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Available agents.",
      "gold": "SELECT agent_id, agent_name, team FROM agents WHERE is_available = 1;",
      "pred": "SELECT agent_id, agent_name, team FROM agents WHERE is_available = 1;",
      "match": true
    },
    {
      "id": "ex_2f156ae4a64ebcc3",
      "dialect": "postgres",
      "difficulty": "easy",
      "question": "List all customer names and countries.",
      "gold": "SELECT customer_name, country FROM customers;",
      "pred": "SELECT customer_name, country FROM customers;",
      "match": true
    },
    {
      "id": "ex_59c91c5ff4fb68e5",
      "dialect": "postgres",
      "difficulty": "medium",
      "question": "Stock rows updated today.",
      "gold": "SELECT stock_id, warehouse_id, item_id, qty_on_hand FROM stock WHERE updated_at::date = CURRENT_DATE;",
      "pred": "SELECT w.warehouse_id, w.warehouse_name, s.item_id, s.qty_on_hand, t.warehouse_id, i.item_name, s.reorder_point FROM stock s JOIN items i ON s.item_id = i.item_id JOIN warehouses w ON s.warehouse_id = w.warehouse_id WHERE w.warehouse_name = 'AcmeWarehouses' AND i.item_name = 'Stock' AND s.qty_on_hand <= i.reorder_point;",
      "match": false
    },
    {
      "id": "ex_35881d0f2446ccb1",
      "dialect": "postgres",
      "difficulty": "easy",
      "question": "Sort suppliers by lead_time_days. Return only the SQL.",
      "gold": "SELECT supplier_id, supplier_name, lead_time_days FROM suppliers ORDER BY lead_time_days ASC;",
      "pred": "SELECT supplier_id, supplier_name, lead_time_days FROM suppliers ORDER BY lead_time_days ASC;",
      "match": true
    },
    {
      "id": "ex_71bcc72a8600e2e8",
      "dialect": "postgres",
      "difficulty": "medium",
      "question": "Last names that start with the letter S, any case. Return only the SQL.",
      "gold": "SELECT employee_id, first_name, last_name FROM employees WHERE last_name ILIKE 'S%';",
      "pred": "SELECT employee_id, SUBSTRING(last_name FROM 1 FOR 3) AS name_prefix FROM employees;",
      "match": false
    },
    {
      "id": "ex_7074e097cbb5dacc",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Open ticket load per agent name.",
      "gold": "SELECT a.agent_name, COUNT(*) AS open_tickets FROM tickets t JOIN agents a ON t.agent_id = a.agent_id WHERE t.status = 'Open' GROUP BY a.agent_name;",
      "pred": "SELECT a.agent_name, COUNT(*) AS open_tickets FROM tickets t JOIN agents a ON t.agent_id = a.agent_id WHERE t.status = 'Open' GROUP BY a.agent_name;",
      "match": true
    },
    {
      "id": "ex_a173431eb1705ce1",
      "dialect": "postgres",
      "difficulty": "hard",
      "question": "Write a PostgreSQL query for: Customers missing from the orders table.",
      "gold": "SELECT c.customer_id, c.customer_name FROM customers c WHERE NOT EXISTS (SELECT 1 FROM orders o WHERE o.customer_id = c.customer_id);",
      "pred": "SELECT c.customer_id, c.customer_name FROM customers c WHERE NOT EXISTS (SELECT 1 FROM orders o WHERE o.customer_id = c.customer_id);",
      "match": true
    },
    {
      "id": "ex_c33dae39b2813158",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Today's stock updates. Return only the SQL.",
      "gold": "SELECT stock_id, warehouse_id, item_id, qty_on_hand FROM stock WHERE TRUNC(updated_at) = TRUNC(SYSDATE);",
      "pred": "SELECT txn_id, warehouse_id, item_id, qty_on_hand, created_at FROM stock WHERE qty_on_hand <= TRUNC(SYSDATE) - 1;",
      "match": false
    },
    {
      "id": "ex_314a6b2149e2f1e8",
      "dialect": "oracle",
      "difficulty": "easy",
      "question": "The ten students with the highest GPA.",
      "gold": "SELECT full_name, major, gpa FROM students ORDER BY gpa DESC FETCH FIRST 10 ROWS ONLY;",
      "pred": "SELECT full_name, major, gpa FROM students ORDER BY gpa DESC FETCH FIRST 10 ROWS ONLY;",
      "match": true
    },
    {
      "id": "ex_ce4615861e7a7902",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Write a Oracle query for: updated_at on the current date.",
      "gold": "SELECT stock_id, warehouse_id, item_id, qty_on_hand FROM stock WHERE TRUNC(updated_at) = TRUNC(SYSDATE);",
      "pred": "SELECT txn_id, warehouse_id, item_id, created_at FROM transactions WHERE created_at >= SYSDATE - 1;",
      "match": false
    },
    {
      "id": "ex_64a72b64a6631d74",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Origins that begin with San. Return only the SQL.",
      "gold": "SELECT shipment_id, tracking_no, origin_city FROM shipments WHERE origin_city LIKE 'San%';",
      "pred": "SELECT shipment_id, tracking_no, origin_city FROM shipments WHERE origin_city LIKE 'San%';",
      "match": true
    },
    {
      "id": "ex_eb5014dbd237c58b",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Write a Oracle query for: Concatenate first and last name.",
      "gold": "SELECT first_name || ' ' || last_name AS full_name FROM employees;",
      "pred": "SELECT first_name || ' ' || last_name AS full_name FROM employees;",
      "match": true
    },
    {
      "id": "ex_7872027d199a94d7",
      "dialect": "postgres",
      "difficulty": "hard",
      "question": "Customers who never placed an order.",
      "gold": "SELECT c.customer_id, c.customer_name FROM customers c WHERE NOT EXISTS (SELECT 1 FROM orders o WHERE o.customer_id = c.customer_id);",
      "pred": "SELECT c.customer_id, c.customer_name FROM customers c WHERE NOT EXISTS (SELECT 1 FROM orders o WHERE o.customer_id = c.customer_id);",
      "match": true
    },
    {
      "id": "ex_f59b7eb0d4cd4455",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Employees whose last name starts with S, case-insensitive.",
      "gold": "SELECT employee_id, first_name, last_name FROM employees WHERE UPPER(last_name) LIKE 'S%';",
      "pred": "SELECT employee_id, first_name, last_name FROM employees WHERE last_name LIKE '%S%';",
      "match": false
    },
    {
      "id": "ex_ded04128a74afeef",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Mark shipment 77 delivered today.",
      "gold": "UPDATE shipments SET status = 'DELIVERED', delivered_on = TRUNC(SYSDATE) WHERE shipment_id = 77;",
      "pred": "UPDATE shipments SET status = 'DELIVERED', delivered_on = TRUNC(SYSDATE) WHERE shipment_id = 77;",
      "match": true
    },
    {
      "id": "ex_bb6c014680d3ea3c",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Complete shipment 77. Return only the SQL.",
      "gold": "UPDATE shipments SET status = 'DELIVERED', delivered_on = TRUNC(SYSDATE) WHERE shipment_id = 77;",
      "pred": "UPDATE shipments SET status = 'DELIVERED', delivered_on = TRUNC(SYSDATE) WHERE shipment_id = 77;",
      "match": true
    },
    {
      "id": "ex_9e0427dcec4e7666",
      "dialect": "postgres",
      "difficulty": "hard",
      "question": "customer_id in customers not in orders. Return only the SQL.",
      "gold": "SELECT c.customer_id, c.customer_name FROM customers c WHERE NOT EXISTS (SELECT 1 FROM orders o WHERE o.customer_id = c.customer_id);",
      "pred": "SELECT c.customer_id, c.customer_name FROM customers c WHERE NOT EXISTS (SELECT 1 FROM orders o WHERE o.customer_id = c.customer_id);",
      "match": true
    },
    {
      "id": "ex_ee9af559100ae7f3",
      "dialect": "oracle",
      "difficulty": "easy",
      "question": "Write a Oracle query for: Top 10 GPA list.",
      "gold": "SELECT full_name, major, gpa FROM students ORDER BY gpa DESC FETCH FIRST 10 ROWS ONLY;",
      "pred": "SELECT full_name, major, gpa FROM students ORDER BY gpa DESC FETCH FIRST 10 ROWS ONLY;",
      "match": true
    },
    {
      "id": "ex_181c0867e851761a",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Write a Oracle query for: Find customers whose city matches %York%.",
      "gold": "SELECT customer_id, customer_name, city FROM customers WHERE city LIKE '%York%';",
      "pred": "SELECT customer_id, customer_name, city FROM customers WHERE city LIKE '%York%';",
      "match": true
    },
    {
      "id": "ex_5c1944bd992a4282",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Write a Oracle query for: Count Open tickets grouped by agent_name.",
      "gold": "SELECT a.agent_name, COUNT(*) AS open_tickets FROM tickets t JOIN agents a ON t.agent_id = a.agent_id WHERE t.status = 'Open' GROUP BY a.agent_name;",
      "pred": "SELECT a.agent_name, COUNT(*) AS open_tickets FROM tickets t JOIN agents a ON t.agent_id = a.agent_id WHERE t.status = 'Open' GROUP BY a.agent_name;",
      "match": true
    },
    {
      "id": "ex_4b16a4d788c97596",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Write a Oracle query for: Agents who are available.",
      "gold": "SELECT agent_id, agent_name, team FROM agents WHERE is_available = 1;",
      "pred": "SELECT agent_id, agent_name, team FROM agents WHERE is_available = 1;",
      "match": true
    },
    {
      "id": "ex_176cb0a393755a4d",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Shipments originating in a city starting with San.",
      "gold": "SELECT shipment_id, tracking_no, origin_city FROM shipments WHERE origin_city LIKE 'San%';",
      "pred": "SELECT shipment_id, tracking_no, origin_city FROM shipments WHERE origin_city LIKE 'San%';",
      "match": true
    },
    {
      "id": "ex_ca3413a258dd3e4e",
      "dialect": "oracle",
      "difficulty": "hard",
      "question": "Write a Oracle query for: WITH clause counting orders per customer, keep count > 3.",
      "gold": "WITH order_counts AS (SELECT customer_id, COUNT(*) AS order_count FROM orders GROUP BY customer_id) SELECT c.customer_name, oc.order_count FROM order_counts oc JOIN customers c ON c.customer_id = oc.customer_id WHERE oc.order_count > 3;",
      "pred": "WITH order_counts AS (SELECT customer_id, COUNT(*) AS order_count FROM orders GROUP BY customer_id) SELECT c.customer_name, oc.order_count FROM order_counts oc JOIN customers c ON c.customer_id = oc.customer_id WHERE oc.order_count > 3;",
      "match": true
    },
    {
      "id": "ex_97741e5236913d36",
      "dialect": "oracle",
      "difficulty": "easy",
      "question": "Best ten gpa values. Return only the SQL.",
      "gold": "SELECT full_name, major, gpa FROM students ORDER BY gpa DESC FETCH FIRST 10 ROWS ONLY;",
      "pred": "SELECT full_name, major, gpa FROM students ORDER BY gpa DESC FETCH FIRST 10 ROWS ONLY;",
      "match": true
    },
    {
      "id": "ex_79eebf63d2b46a2b",
      "dialect": "oracle",
      "difficulty": "hard",
      "question": "Customers who ordered more than three times. Return only the SQL.",
      "gold": "WITH order_counts AS (SELECT customer_id, COUNT(*) AS order_count FROM orders GROUP BY customer_id) SELECT c.customer_name, oc.order_count FROM order_counts oc JOIN customers c ON c.customer_id = oc.customer_id WHERE oc.order_count > 3;",
      "pred": "WITH order_counts AS (SELECT customer_id, COUNT(*) AS order_count FROM orders GROUP BY customer_id) SELECT c.customer_name, oc.order_count FROM order_counts oc JOIN customers c ON c.customer_id = oc.customer_id WHERE oc.order_count > 3;",
      "match": true
    },
    {
      "id": "ex_adbaf24e74fb701a",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Customers in cities containing 'York'.",
      "gold": "SELECT customer_id, customer_name, city FROM customers WHERE city LIKE '%York%';",
      "pred": "SELECT customer_id, customer_name, city FROM customers WHERE city LIKE '%York%';",
      "match": true
    },
    {
      "id": "ex_2d820ef2a5909d2a",
      "dialect": "postgres",
      "difficulty": "medium",
      "question": "Today's stock updates. Return only the SQL.",
      "gold": "SELECT stock_id, warehouse_id, item_id, qty_on_hand FROM stock WHERE updated_at::date = CURRENT_DATE;",
      "pred": "SELECT txn_id, warehouse_id, item_id, qty_on_hand, created_at FROM stock WHERE qty_on_hand <= CURRENT_DATE;",
      "match": false
    },
    {
      "id": "ex_d759eda0ae841fa7",
      "dialect": "postgres",
      "difficulty": "easy",
      "question": "Return every customer's name and country. Return only the SQL.",
      "gold": "SELECT customer_name, country FROM customers;",
      "pred": "SELECT customer_name, country FROM customers;",
      "match": true
    },
    {
      "id": "ex_03314b46941553c7",
      "dialect": "oracle",
      "difficulty": "easy",
      "question": "Number of cancelled orders. Return only the SQL.",
      "gold": "SELECT COUNT(*) AS cancelled_count FROM orders WHERE status = 'Cancelled';",
      "pred": "SELECT COUNT(*) AS cancelled_count FROM orders WHERE status = 'Cancelled';",
      "match": true
    },
    {
      "id": "ex_532b3d35b7593fb5",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Full name as first_name space last_name.",
      "gold": "SELECT first_name || ' ' || last_name AS full_name FROM employees;",
      "pred": "SELECT first_name || ' ' || last_name AS full_name FROM employees;",
      "match": true
    },
    {
      "id": "ex_8cc46343db1bdc6f",
      "dialect": "oracle",
      "difficulty": "easy",
      "question": "How many 4-credit courses are there?",
      "gold": "SELECT COUNT(*) AS course_count FROM courses WHERE credits = 4;",
      "pred": "SELECT COUNT(*) AS course_count FROM courses WHERE credits = 4;",
      "match": true
    },
    {
      "id": "ex_0149a918a33d3f6e",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Write a Oracle query for: origin_city LIKE San%.",
      "gold": "SELECT shipment_id, tracking_no, origin_city FROM shipments WHERE origin_city LIKE 'San%';",
      "pred": "SELECT shipment_id, tracking_no, origin_city FROM shipments WHERE origin_city LIKE 'San%';",
      "match": true
    },
    {
      "id": "ex_6b8663da56b88c3e",
      "dialect": "oracle",
      "difficulty": "easy",
      "question": "Write a Oracle query for: Count orders with status Cancelled.",
      "gold": "SELECT COUNT(*) AS cancelled_count FROM orders WHERE status = 'Cancelled';",
      "pred": "SELECT COUNT(*) AS cancelled_count FROM orders WHERE status = 'Cancelled';",
      "match": true
    },
    {
      "id": "ex_4fe32a3a1acc5588",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "City names that include York. Return only the SQL.",
      "gold": "SELECT customer_id, customer_name, city FROM customers WHERE city LIKE '%York%';",
      "pred": "SELECT customer_id, customer_name, city FROM customers WHERE city LIKE '%York%';",
      "match": true
    },
    {
      "id": "ex_f508bacbf1d5a900",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Write a Oracle query for: Who has a null manager_id?",
      "gold": "SELECT employee_id, first_name, last_name FROM employees WHERE manager_id IS NULL;",
      "pred": "SELECT employee_id, first_name, last_name FROM employees WHERE manager_id IS NULL;",
      "match": true
    },
    {
      "id": "ex_fc5afbbf96202473",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "How many open tickets does each agent have? Return only the SQL.",
      "gold": "SELECT a.agent_name, COUNT(*) AS open_tickets FROM tickets t JOIN agents a ON t.agent_id = a.agent_id WHERE t.status = 'Open' GROUP BY a.agent_name;",
      "pred": "SELECT a.agent_name, COUNT(*) AS open_tickets FROM tickets t JOIN agents a ON t.agent_id = a.agent_id WHERE t.status = 'Open' GROUP BY a.agent_name;",
      "match": true
    },
    {
      "id": "ex_35082fab89e9b2b4",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Write a Oracle query for: Find staff with last_name beginning with s ignoring case.",
      "gold": "SELECT employee_id, first_name, last_name FROM employees WHERE UPPER(last_name) LIKE 'S%';",
      "pred": "SELECT employee_id, first_name, last_name FROM employees WHERE last_name LIKE ' ' || first_name;",
      "match": false
    },
    {
      "id": "ex_aa62e801ddf83284",
      "dialect": "postgres",
      "difficulty": "easy",
      "question": "Suppliers ordered by lead time ascending.",
      "gold": "SELECT supplier_id, supplier_name, lead_time_days FROM suppliers ORDER BY lead_time_days ASC;",
      "pred": "SELECT supplier_id, supplier_name, lead_time_days FROM suppliers ORDER BY lead_time_days ASC;",
      "match": true
    },
    {
      "id": "ex_2b281aa43a7b6fb1",
      "dialect": "oracle",
      "difficulty": "easy",
      "question": "Write a Oracle query for: Count courses where credits = 4.",
      "gold": "SELECT COUNT(*) AS course_count FROM courses WHERE credits = 4;",
      "pred": "SELECT COUNT(*) AS course_count FROM courses WHERE credits = 4;",
      "match": true
    },
    {
      "id": "ex_c5783841911652e9",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Accounts with more than 20 transactions.",
      "gold": "SELECT account_id, COUNT(*) AS txn_count FROM transactions GROUP BY account_id HAVING COUNT(*) > 20;",
      "pred": "SELECT account_id, COUNT(*) AS txn_count FROM transactions GROUP BY account_id HAVING COUNT(*) > 20;",
      "match": true
    },
    {
      "id": "ex_d2f17d616d77d8be",
      "dialect": "oracle",
      "difficulty": "medium",
      "question": "Last names that start with the letter S, any case. Return only the SQL.",
      "gold": "SELECT employee_id, first_name, last_name FROM employees WHERE UPPER(last_name) LIKE 'S%';",
      "pred": "SELECT employee_id, SUBSTR(last_name, 1, 3) AS name_prefix FROM employees;",
      "match": false
    }
  ]
}