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ORA-12495: cannot disable an enabled level, category, or
release category
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Answer / guest
Cause: You attempted to disable a level, category, or
release category that had previously been enabled. An
enabled label definition may be exist in some database
label, so cannot be disabled.
Action: If the label definition is no longer valid, change
its name to one that identifies it as invalid. When any
labels are converted to character strings, the new label
definition will be used.
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