Warning: oci_connect(): ORA-12514: TNS:listener does not currently know of service requested in connect descriptor in C:\xampp\htdocs\job_Application\config\con_db_nml.php on line 3

Fatal error: ORA-12514: TNS:listener does not currently know of service requested in connect descriptor in C:\xampp\htdocs\job_Application\config\con_db_nml.php on line 6