# 22. Virtuoso Functions Guide - VAD_CHECK_UNINSTALLABILITY

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## VAD_CHECK_UNINSTALLABILITY

Checks if the package can be uninstalled.
varchar DB.DBA.VAD_CHECK_UNINSTALLABILITY (in package_name varchar);
Description

Checks if the package can be uninstalled. It does not executes any pre-uninstall Virtuoso/PL code from the package, so there is no guarantee that uninstallation will be successful if the check found no error.

Parameters
package_name – name of package '/' version e.g: 'virtodp/1.0'
See Also

vad_fail_check()

vad_check_installability()

vad_install()

vad_pack()

vad_safe_exec()

vad_uninstall()

vad_load_file()

vad_check()