How to fix the Oracle error ORA-14298: LOB column block size mismatch in ALTER TABLE EXCHANGE [SUB]PARTITION?

In this post, you’ll learn more about the Oracle ErrorORA-14298: LOB column 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-14298: LOB column block size mismatch in ALTER TABLE EXCHANGE [SUB]PARTITION

Reason for the Error ORA-14298: LOB column block size mismatch in ALTER TABLE EXCHANGE [SUB]PARTITION

The block sizes of a pair of corresponding LOB columns of the two tables specified in the ALTER TABLE EXCHANGE [SUB]PARTITION statement are different.

How to fix the Error ORA-14298: LOB column 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 corresponding pairs of LOB columns of the tables involved in the ALTER TABLE EXCHANGE [SUB]PARTITION statement are the same.