Oracle Error Message
ORA-14255: table is not partitioned by Range, List, Composite Range or Composite List method
Reason for the Error
The table was not partitioned by Range, List, Composite Range or Composite List method.
Solution
ALTER TABLE SPLIT/DROP PARTITION or ALTER TABLE MERGE PARTITIONS command is only valid for table partitioned by Range, List, Composite Range or Composite List methods. Ensure that the table is partitioned appropriately.