Oracle Solution for Error ora-30018
ORA-30018: Create Rollback Segment failed, USN string is out of range
What triggered the Error:
the system runs out of undo segment number. Too many undo segments exist.What should we do to fix it:
drop some of the unused undo segments and retry operation.
If this was not sufficient go over to:
Oracle Official Support Knowledge Center
Or maybe those geeks at: StackOverflow Board
Or maybe those geeks at: StackOverflow Board
