# Transaction Control Language (TCL)

SQL statements that complete, reverse, or mark points within transactions.

## What is **Transaction Control Language (TCL)** in a relational database?

**Transaction Control Language (TCL)** — SQL statements that complete, reverse, or mark points within transactions.

Level: Apprentice · [More Database terms at this level](https://www.ask-codey.com/glossary/subjects/database/apprentice)

Updated: September 27, 2026

Source: https://www.ask-codey.com/glossary/transaction-control-language-tcl