# MySQL related topics

### In this section

* [Closing a database connection created by a tMysqlConnection component](https://help.qlik.com/talend/en-US/components/8.0/mysql/closing-a-database-connection-created-by-a-tmysql-connection)
* [What is a drop-down list?](https://help.qlik.com/talend/en-US/components/8.0/mysql/what-is-drop-down-list?id=3620)
* [Preparing a database table](https://help.qlik.com/talend/en-US/components/8.0/mysql/preparing-database-table?id=3621)
* [Creating a drop-down list](https://help.qlik.com/talend/en-US/components/8.0/mysql/creating-drop-down-list?id=3622)
* [Creating a dynamic drop-down list](https://help.qlik.com/talend/en-US/components/8.0/mysql/creating-dynamic-drop-down-list?id=3623)
* [Executing multiple SQL statements with one tMysqlRow component](https://help.qlik.com/talend/en-US/components/8.0/mysql/executing-multiple-sql-statements-with-one-tmysqlrow-component)