Cause
NOREVERSE was specified more than once in ALTER INDEX statement.
NOREVERSE was specified more than once in ALTER INDEX statement.
Ensure that date format used in a partition bound for a DATE column supports complete specification of a date (i.e. day, month, and year (including century)). If NLS_DATE_FORMAT does not support complete (i.e. including the century) specification of the year, use TO_DATE() (e.g. TO_DATE('01-01-1999', 'MM-DD-YYYY') to fully express the desired date.
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/e12700.htm
https://community.oracle.com/message/3229900
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