How to UPDATE from a SELECT statement in SQL Server

SQL UPDATE from SELECT, JOIN or MERGE

Solution: Syntax and usage of UPDATE - SQL Video Tutorial | LinkedIn Learning, formerly Lynda.com

SQL UPDATE Examples

Getting started with the SQL UPDATE syntax

SQL UPDATE Statement (Transact SQL) - Essential SQL

How to UPDATE a table by joining multiple tables in SQL?

SQL UPDATE query to update columns in multiple tables using INNER & LEFT JOIN with GROUP BY query

An overview of the SQL Server Update Join