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PLS-00162:

Pragma string expects 4th argument to be a positive integer literal
Cause: The fourth argument (actual parameter) passed to the named pragma (compiler directive) was not a numeric literal, as required. The parameter might be misspelled, or the pragma syntax might be faulty (for example, a comma might be missing between two parameters).
Action: Check the spelling of the fourth parameter, and make sure the proper syntax was used.