# T-SQL

*T-SQL analysis is available starting in* [*Developer Edition*](https://www.sonarsource.com/plans-and-pricing/developer/)*.*

## Language-specific properties <a href="#language-specific-properties" id="language-specific-properties"></a>

Discover and update the T-SQL-specific [analysis-parameters](https://docs.sonarsource.com/sonarqube-server/10.4/analyzing-source-code/analysis-parameters "mention") in **Administration > General Settings > Languages > T-SQL**.

## Important note <a href="#important-note" id="important-note"></a>

With the default configuration, only files with the `.tsql` are analyzed as T-SQL, and files with the `.sql` file extension are analyzed as PL/SQL. This behavior is defined in **Administration > General Settings > T-SQL > File Suffixes** and **Administration > General Settings > PL/SQL > File Suffixes**. You can override these properties either at the server level or at the project level.