The database contains configuration data for the site as well as metadata for apps. This does not include the apps' actual loaded data (binaries) from other data sources or generated via load script, which is stored in the binary files (qvf) in the configured network share location.
A backup of the repository Database could be requested by Qlik Support for troubleshooting purposes. Keep in mind that Qlik has a strict Non-Disclosure Agreement. For further details please visit Support Non Disclosure