PL SQL Programming Oracle PLSQL Tutorial

SQL>
SQL> DECLARE
  2    e_TooManyEmployee EXCEPTION;  -- Exception to indicate an error condition
  3  BEGIN
  4    RAISE e_TooManyEmployee;
  5  EXCEPTION
  6    WHEN e_TooManyEmployee THEN
  7      DBMS_OUTPUT.put_line('e_TooManyEmployee');
  8  END;
  9  /
e_TooManyEmployee
PL/SQL procedure successfully completed.
SQL>