Cause
The block sizes of a pair of indexes being exchanged in the ALTER TABLE EXCHANGE [SUB]PARTITION statement are different.
The block sizes of a pair of indexes being exchanged in the ALTER TABLE EXCHANGE [SUB]PARTITION statement are different.
Ensure that the number of partitions in the partitioned table is the same as the number of subpartitions in the the composite partition.
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/e12700.htm
https://community.oracle.com/message/3229900
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