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ORA-39700:

database must be opened with UPGRADE option
Cause: A normal database open was attempted, but the database has not been upgraded to the current server version.
Action: Use the UPGRADE option when opening the database to run catupgrd.sql (for database upgrade), or to run catalog.sql and catproc.sql (after initial database creation).
 SubjectReplies
1.Error in opening DB2
2.Error in opening DB1