Oracle Error Message
ORA-14297: Index block size mismatch in ALTER TABLE EXCHANGE [SUB]PARTITION
Reason for the Error
The block sizes of a pair of indexes being exchanged in the ALTER TABLE EXCHANGE [SUB]PARTITION statement are different.
Solution
Ensure that the block sizes of the corresponding pairs of indexes that need to be exchanged in the ALTER TABLE EXCHANGE [SUB]PARTITION statement are the same.