Querying with Joins
Explore how to query data from multiple tables using JOINs in T-SQL. Understand how to combine rows from Employees and Departments tables by matching related columns, use table and column aliases to improve query clarity, and retrieve meaningful combined data from relationships.
We'll cover the following...
We'll cover the following...
When we have relationships between tables, it is not unusual that we may need to view data from several tables combined. Let’s assume we have the following tables.
In Departments, we have information about departments, and Employees contains data about employees. Each employee is associated with some department through a foreign key that references the Id ...