How to fix the Oracle error ORA-14286: cannot COALESCE the only subpartition of this table partition?

In this post, you’ll learn more about the Oracle ErrorORA-14286: cannot COALESCE the only subpartition of this table partition with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-14286: cannot COALESCE the only subpartition of this table partition

Reason for the Error ORA-14286: cannot COALESCE the only subpartition of this table partition

A COALESCE SUBPARTITION command was issued when there is only one subpartition in the partition which is illegal

How to fix the Error ORA-14286: cannot COALESCE the only subpartition of this table partition ?

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

Ensure that there is at least one subpartition. Drop partition to remove all subpartitions.