Cause
partitioning columns of a global partitioned index must form a prefix of the index' key columns
partitioning columns of a global partitioned index must form a prefix of the index' key columns
Remove one of the conflicting clauses
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/e12700.htm
https://community.oracle.com/message/1767657
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