ORA-12496: cannot change existing level, category, or release numbers

ORA-12496
ORA-12496: cannot change existing level, category, or release numbers
Cause: You attempted to change the number assigned to level, category or
releasability category.
Action: Change the character string representations, not the numbers.
More details : Viste http://www.high-oracle.com/ora-12496/
More details : Viste http://www.high-oracle.com/ora-12496/
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