System Packages Oracle PLSQL Tutorial

SQL>
SQL> DECLARE
  2     lv_status_num PLS_INTEGER;
  3  BEGIN
  4     lv_status_num := DBMS_PIPE.SEND_MESSAGE('TEST 1');
  5     DBMS_OUTPUT.PUT_LINE('Status: ' || lv_status_num);
  6  END;
  7  /
PL/SQL procedure successfully completed.
SQL>