Introduction to SQL Server's sqlcmd utility

SQL for Beginners Tutorial

How to use SQLCMD commands in the SSMS query editor - SQL Shack

Overview of the SQLCMD utility in SQL Server

Using SQL Server sqlcmd scripting variables

Execute SQL Server Script Files with the sqlcmd Utility

Execute SSIS Package with SQLCMD and Parameters

SQL Variable Examples in Stored Procedures, Functions, Scripts, SQLCMD