How to fix the Oracle error ORA-12494: cannot insert or delete a level, category, or release category?

In this post, you’ll learn more about the Oracle ErrorORA-12494: cannot insert or delete a level, category, or release category with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-12494: cannot insert or delete a level, category, or release category

Reason for the Error ORA-12494: cannot insert or delete a level, category, or release category

You attempted to insert or delete a level, category, or release category definition.

How to fix the Error ORA-12494: cannot insert or delete a level, category, or release category ?

You can fix this error in Oracle by following the below steps

If the label definition is no longer valid, change its name to one that identifies it as invalid.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.