Cause
The column specified is not indexed.
The column specified is not indexed.
Create index on the column before performing this operation
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/drgus.htm
https://community.oracle.com/message/148087
https://community.oracle.com/message/9361202
https://community.oracle.com/message/4052422
https://community.oracle.com/message/11004532
https://community.oracle.com/message/2173710
https://community.oracle.com/message/9498451
https://community.oracle.com/message/1592446
https://community.oracle.com/message/10410411
https://community.oracle.com/message/3265952
https://community.oracle.com/message/10237635
https://community.oracle.com/message/10722616
https://community.oracle.com/message/9313289
https://community.oracle.com/message/10161324
https://community.oracle.com/message/2025807
https://community.oracle.com/message/2771939
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