Cause
An UPDATE or INSERT statement attempted to insert a duplicate key. For Trusted Oracle configured in DBMS MAC mode, you may see this message if a duplicate entry exists at a different level.
An UPDATE or INSERT statement attempted to insert a duplicate key. For Trusted Oracle configured in DBMS MAC mode, you may see this message if a duplicate entry exists at a different level.
Either remove the unique restriction or do not insert the key.
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/e0.htm
http://docs.oracle.com/cd/E16655_01/server.121/e17633/datainte.htm
http://docs.oracle.com/cd/E16655_01/server.121/e17633/datainte.htm
http://docs.oracle.com/cd/E16655_01/server.121/e17209/sql_elements006.htm
http://docs.oracle.com/cd/E16655_01/server.121/e17906/chapter1.htm
http://docs.oracle.com/cd/E16655_01/server.121/e18896/rarrectdifpac.htm
http://docs.oracle.com/cd/E16655_01/appdev.121/e18408/pc_08arr.htm
http://docs.oracle.com/cd/E16655_01/appdev.121/e18406/pco07tab.htm
http://docs.oracle.com/cd/E16655_01/appdev.121/e17620/adfns_editions.htm
http://docs.oracle.com/cd/E16655_01/appdev.121/e17963/apex_error.htm
https://community.oracle.com/message/9555860
https://community.oracle.com/message/10658969
https://community.oracle.com/message/6492981
https://community.oracle.com/message/11274437
https://community.oracle.com/message/9658761
https://community.oracle.com/message/3152937
https://community.oracle.com/message/1838029
https://community.oracle.com/message/2777826
https://community.oracle.com/message/9751571
https://community.oracle.com/message/1140211
https://community.oracle.com/message/3242491
https://community.oracle.com/message/4275979
https://community.oracle.com/message/1155095
https://community.oracle.com/message/2205769
https://community.oracle.com/message/3975673
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