Querying Data Using T-SQL

SQL and T-SQL for Beginners in 229 minutes – SQLServerCentral

Complete Guide to T-SQL for Data Analysts by Microsoft Press Online Class | LinkedIn Learning, formerly Lynda.com

DATEADD SQL Function to Add and Subtract Dates and Times

Add and Subtract Dates using DATEADD in SQL Server

SQL date format Overview; DateDiff SQL function, DateAdd SQL function and more

How to write readable T-SQL queries

Write Subqueries in Transact-SQL (Part 5 of 7) | Programming Databases with T-SQL for Beginners

Microsoft SQL Documentation - SQL Server