Understanding the SQL MERGE statement

How to use Excel If Statement with Multiple Conditions Range [AND/OR]

How to UPDATE from a SELECT statement in SQL Server

SQL IF Statement for Conditional Logic

SQL IF Statement introduction and overview

Querying data using the SQL Case statement

【SQL超入門講座】21.CASE｜条件に合わせて処理を分ける方法

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

Using a SQL Server Case Statement for IF/Else Logic