15 SQL Queries Every QA Tester Should Know

Begin with SELECT and WHERE

SELECT *
FROM Users
WHERE Email = 'tester@example.com';

Check the latest records

SELECT TOP 20 *
FROM Orders
ORDER BY CreatedDate DESC;

Count matching records

SELECT COUNT(*)
FROM Payments
WHERE Status = 'Pending';

This page can be expanded into a full guide as you add examples from your own QA work.