Cause
Partition bound specified in ALTER TABLE ADD PARTITION statement did not collate higher than that of the table's last partition, which is illegal.
Partition bound specified in ALTER TABLE ADD PARTITION statement did not collate higher than that of the table's last partition, which is illegal.
Choose one of the valid index options.
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/e12700.htm
https://community.oracle.com/message/3726803
https://community.oracle.com/message/10769664
https://community.oracle.com/message/3745007
https://community.oracle.com/message/9534308
https://community.oracle.com/message/9996337
https://community.oracle.com/message/9448229
https://community.oracle.com/message/10937505
https://community.oracle.com/message/10187733
https://community.oracle.com/message/9448939
https://community.oracle.com/message/4571218
https://community.oracle.com/message/2339398
https://community.oracle.com/message/1493547
https://community.oracle.com/message/2277189
https://community.oracle.com/message/9844385
https://community.oracle.com/message/4303907
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