# Database

The administration database server is used to store administration information and manage the persistence in Talend Administration Center. By default a MySQL database is used, but you can also use an embedded H2 database, MS SQL Server, or Oracle to store all cross-project data (users, projects, authorization, license, tasks, triggers, monitoring).

The administration database will be named <talend\_administrator> in the rest of this document.

The <talend\_administrator> administration database will contain all the data related to project information and administration including: administration data, project declaration, user declaration and authorization, task list, etc.

The tables in this database are automatically created when connecting for the first time to Talend Administration Center. The created tables include:

* a Users table
* a Projects table
* a Rights table

Information noteImportant: These tables are created, populated, and managed automatically by Qlik. Users do not need to take any action.

* Available in:
* Big Data Platform
* Data Fabric
* Data Management Platform
* Data Services Platform
* Qlik Cloud Enterprise Edition
* Qlik Talend Cloud Enterprise Edition
* Qlik Talend Cloud Premium Edition
* Real-Time Big Data Platform

Additionally, to perform Data Quality operations, a HSQL, MySQL, or Oracle database is used to store report and analysis results. For more information about these databases, see [Supported databases for profiling data](https://help.qlik.com/talend/en-US/studio-user-guide/8.0/supported-databases-for-profiling-data).