In 2018 and 2019, I recorded a series of videos for APRESS publishing on how to write T-SQL Queries. (I have linked to the O'Reilly website below.) There are four titles in the series with each title about 45 minutes in length. The first is how to write a T-SQL SELECT statement including how to filter records using the WHERE clause. The second video looks at the built-in system functions within SQL Server, as well as, using the GROUP BY and HAVING statements. The third videos are focused on retrieving data from multiple tables using JOINs and UNION statements. While finally, the fourth video walks through Data Manipulation Language statements such as INSERT, UPDATE, and DELETE.