Translations:Optional settings/73/en
From LimeSurvey Manual
Database settings
The database settings are written to config.php by the installer file when you install LimeSurvey for the first time. If needed, you can update this part of the config.php file. Please remember that you do this at your own risk! See also the Yii documentation and please remember that LimeSurvey supports only the following types of database: mysql, pgsql, dblib, mssql, and sqlsrv.