---
title: Why you should not uninstall Database Vault from a CDB
description: Matheus Boesing provides a reminder that removing DV option in a multitenant environment is not supported.
---

[Blog | Pythian ](https://www.pythian.com/blog)

# [Why you should not uninstall Database Vault from a CDB](https://www.pythian.com/blog/why-you-should-not-uninstall-database-vault-from-a-cdb)

 Written by [Matheus Boesing](https://www.pythian.com/blog/author/matheus-boesing) | Nov 19, 2019 5:00:00 AM

## Important Notice

Now that we are fully into database upgrades, here is an important item to be aware of: As you may know, the Database Vault (DV) option could be reported as not installed in source when converting non-CDB to PDB, and the target CDB has the option installed. However, be aware that is not supported to *remove DV* option in a multi-tenant environment (single-tenant included). From [**Doc ID 2380950.1**](https://support.oracle.com/epmos/faces/DocumentDisplay?_afrLoop=290001204166394&id=2380950.1):

```
IMPORTANT: Never run dvremov.sql on a container database (CDB) / Multitenant environment. Doing so will cause serious problems when upgrading the PDBs.
```

In case you run *dvremov.sql* in a 12c multi-tenant DB, then the only option you might have is to restore the database to the state before running *dvremov.sql*. Assuming you have this backup, of course. So stay sharp! **References:** [*How To uninstall / install Database Vault in a 12c database ? (Doc ID 2112167.1)*](https://support.oracle.com/epmos/faces/DocumentDisplay?_afrLoop=289892250565397&id=2112167.1) [*DBA_DV_STATUS Is INVALID (Due to “ORA-00942: Table Or View Does Not Exist”) (Doc ID 2380950.1)*](https://support.oracle.com/epmos/faces/DocumentDisplay?_afrLoop=289869630782621&id=2380950.1)

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