[T-SQL](https://docs.microsoft.com/en-us/sql/t-sql/language-reference?view=sql-server-ver15) is Microsoft's proprietary version of the SQL standard which is used to interact with the [[Microsoft SQL Server]] database. T-SQL expands on SQL to include [procedural programming](https://en.wikipedia.org/wiki/Procedural_programming), local variables, various support functions for string processing, date processing, mathematics, etc. and changes to the **DELETE** and **UPDATE** statements. %% wiki footer: Please don't edit anything below this line %% ## This note in GitHub <span class="git-footer">[Edit In GitHub](https://github.dev/data-engineering-community/data-engineering-wiki/blob/main/Tools/Programming%20Languages/T-SQL.md "git-hub-edit-note") | [Copy this note](https://raw.githubusercontent.com/data-engineering-community/data-engineering-wiki/main/Tools/Programming%20Languages/T-SQL.md "git-hub-copy-note")</span> <span class="git-footer">Was this page helpful? [👍](https://tally.so/r/mOaxjk?rating=Yes&url=https://dataengineering.wiki/Tools/Programming%20Languages/T-SQL) or [👎](https://tally.so/r/mOaxjk?rating=No&url=https://dataengineering.wiki/Tools/Programming%20Languages/T-SQL)</span>