ORA-14767: Cannot specify this interval with existing high bounds
Cause: The interval specified conflicts with the existing high bound for the last partition. The combination might lead to invalid dates for high bounds in the future.
Action: If this is a CREATE TABLE, try specifying a different high bound value for the last partition, or a different interval. If this is an ALTER TABLE SET INTERVAL, please choose either a different interval, or, modify the table to change the high bound for the last partition.
Error Type: ORA