ORA 20000 - cheeyoung/sqlplus-public GitHub Wiki

12.5 User-Defined Exceptions

84 ORA-19999 to ORA-24279

ORA-20000: string
Cause:The stored procedure 'raise_application_error' was called which causes this error to be generated.
Action: Correct the problem as described in the error message or contact the application administrator or DBA for more information.