After successfully upgrading an Oracle database to 19c release, the following error was thrown after attempting to upgrade the recovery catalog:
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-07539: insufficient privileges to upgrade the catalog schema
SOLUTION:
connect to Recovery Catalog Database, and grant recovery catalog user the following permissions :
SQL> grant CREATE ANY CONTEXT to catalog_user;
SQL> grant drop ANY CONTEXT to catalog_user;
Then, go to the 19c upgraded database and upgrade the catalog:
rman target /
RMAN> connect catalog catalog_user/XXXXXX@catalogdb
RMAN> upgrade catalog;
RMAN> upgrade catalog;
I hope this helps !