How to fix the Oracle error ORA-14295: column type or size mismatch between partitioning columns and subpartitioning columns?

In this post, you’ll learn more about the Oracle ErrorORA-14295: column type or size mismatch between partitioning columns and subpartitioning columns with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-14295: column type or size mismatch between partitioning columns and subpartitioning columns

Reason for the Error ORA-14295: column type or size mismatch between partitioning columns and subpartitioning columns

When exchanging a partitioned table with a composite partition the type and size of the partitioning columns of the table must match the type and size of the subpartitioning columns of the composite partition.

How to fix the Error ORA-14295: column type or size mismatch between partitioning columns and subpartitioning columns ?

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

Ensure that the type and size of the partitioning columns of the partitioned is the same as the type and size of the subpartitioning columns of the composite partition.