Introduction to SQL Server's sqlcmd utility

Using SQL Server sqlcmd scripting variables

SQL Commands Cheat Sheet - Learn SQL Commands in One Go

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

Working with PowerShell’s Invoke-SqlCmd

Overview of the SQLCMD utility in SQL Server

Execute SQL Server Script Files with the sqlcmd Utility

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

SQL Server Common Table Expressions (CTE) usage and examples