Tag Archives: ORA-12541

Error Messages ORA-12500 to ORA-12699

ORA-12500 to ORA-12699 ORA-12500: TNS:listener failed to start a dedicated server process Cause: The process of starting up a dedicated server process failed. The executable could not be found or the environment may be set up incorrectly. Action: Turn on tracing at the ADMIN level and reexecute the operation. Verify that the ORACLE Server executable […]