The requirements to enable Oracle Database Vault after upgrades change, depending on your source Oracle Database release.
Upgrades from Oracle Database 11g release 2 (11.2) or earlier: After the upgrade, Oracle Database Vault is disabled by default.
Upgrades from Oracle Database 12c release 1 (12.1) or later: After the upgrade, Oracle Database Vault has the same enforcement status that you had in place before the upgrade.
Table 2-1 Common Oracle Database Vault Upgrade Scenarios and Upgrade Preparation Tasks
|Source Database Release||Target Database Release||Do you need to disable Database Vault Before Upgrade||What is Database Vault Status After Upgrade|
|11.2 or earlier||12.1||Yes||Disabled. You need to enable Database Vault manually after the upgrade.|
|11.2.or earlier||12.2, 18.1 and later||No||Disabled. You need to enable Database Vault manually after the upgrade.|
|12.1, 12.2, 18.1, and later||12.2, 18.1 and later||No||Database Vault has the same enforcement status that you had in place before the upgrade.|