Cause
An attempt was made to drop a tablespace which contains indexes whose partitions are not completely contained in this tablespace, and which are defined on the tables which are completely contained in this tablespace.
An attempt was made to drop a tablespace which contains indexes whose partitions are not completely contained in this tablespace, and which are defined on the tables which are completely contained in this tablespace.
Do not attempt to update a partition key column or make sure that the new partition key is within the range containing the old partition key.
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/e12700.htm
https://community.oracle.com/message/3271557
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