Oracle Error Codes

Previously offlined undo tablespace ‘string’ is still pending

Undo tablespace ‘string’ is already in use by this instance

Segment ‘string’ is not supported in string Undo Management mode

Create Rollback Segment failed- USN string is out of range

Illegal rollback Segment operation in Automatic Undo mode

UNDO_MANAGEMENT=AUTO needs Compatibility string or greater

Operation not allowed on undo tablespace

Cannot create segments in undo tablespace

Duplicate undo tablespace specification

Invalid specification for CREATE UNDO TABLESPACE