CASE statement in SQL

Understanding the SQL Server CASE statement

Querying data using the SQL Case statement

SQL IF Statement introduction and overview

Overview of the T-SQL If Exists statement in a SQL Server database

PowerShell If, If Else and Switch Examples

Using a SQL Server Case Statement for IF/Else Logic

IF-THEN logic in SELECT and WHERE with CASE expressions in Oracle SQL

IF THEN logic with CASE - SQL Video Tutorial | LinkedIn Learning, formerly Lynda.com