How to fix the Oracle error ORA-14296: Table block size mismatch in ALTER TABLE EXCHANGE [SUB]PARTITION?

In this post, you’ll learn more about the Oracle ErrorORA-14296: Table block size mismatch in ALTER TABLE EXCHANGE [SUB]PARTITION with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-14296: Table block size mismatch in ALTER TABLE EXCHANGE [SUB]PARTITION

Reason for the Error ORA-14296: Table block size mismatch in ALTER TABLE EXCHANGE [SUB]PARTITION

The block sizes of the two tables specified in the ALTER TABLE EXCHANGE [SUB]PARTITION statement are different. For index organized tables, either the block sizes of the index or the overflow (or both) do not match.

How to fix the Error ORA-14296: Table block size mismatch in ALTER TABLE EXCHANGE [SUB]PARTITION ?

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

Ensure that the block sizes of the tables involved in the ALTER TABLE EXCHANGE [SUB]PARTITION statement are the same. For index organized tables, ensure that the block sizes of both the index and the overflow of the two tables match.