How to fix the Oracle error ORA-14621: cannot add subpartition when DEFAULT subpartition exists?

In this post, you’ll learn more about the Oracle ErrorORA-14621: cannot add subpartition when DEFAULT subpartition exists with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-14621: cannot add subpartition when DEFAULT subpartition exists

Reason for the Error ORA-14621: cannot add subpartition when DEFAULT subpartition exists

An ADD SUBPARTITION operation cannot be executed when a subpartition with DEFAULT values exists

How to fix the Error ORA-14621: cannot add subpartition when DEFAULT subpartition exists ?

You can fix this error in Oracle by following the below steps

Issue a SPLIT of the DEFAULT subpartition instead