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