Cause
The result set descriptor has a syntax error
The result set descriptor has a syntax error
check the syntax of the result set descriptor
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/drgus.htm
https://community.oracle.com/message/9605767
https://community.oracle.com/message/10992098
https://community.oracle.com/message/11119830
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