Cause
When exchanging a partitioned table with a composite partition the type and size of the partitioning columns of the table must match the type and size of the subpartitioning columns of the composite partition.
When exchanging a partitioned table with a composite partition the type and size of the partitioning columns of the table must match the type and size of the subpartitioning columns of the composite partition.
Ensure that the partitioning type of partitioned table is the same as the subpartitioning type of 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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