After finishing my first SQL courses, I continued my journey by diving deeper into SQL — and the next big topic I encountered was joining data. This is one of the most important (and often confusing) ...

-- Paste 1: Drop if exists, create tables, insert data, then verify IF OBJECT_ID('dbo.Employees','U') IS NOT NULL DROP TABLE dbo.Employees; IF OBJECT_ID('dbo.Departments','U') IS NOT NULL DROP TABLE ...