Example 4-7 Using the Searched CASE Statement

DECLARE
  grade CHAR(1);
BEGIN
  grade := 'B';
  CASE
    WHEN grade = 'A' THEN DBMS_OUTPUT.PUT_LINE('Excellent');
    WHEN grade = 'B' THEN DBMS_OUTPUT.PUT_LINE('Very Good');
    WHEN grade = 'C' THEN DBMS_OUTPUT.PUT_LINE('Good');
    WHEN grade = 'D' THEN DBMS_OUTPUT.PUT_LINE('Fair');
    WHEN grade = 'F' THEN DBMS_OUTPUT.PUT_LINE('Poor');
    ELSE DBMS_OUTPUT.PUT_LINE('No such grade');
  END CASE;
END;
-- rather than using the ELSE in the CASE, could use the following
--  EXCEPTION
--    WHEN CASE_NOT_FOUND THEN
--      DBMS_OUTPUT.PUT_LINE('No such grade');
/

Example 4-7 Using the Searched CASE Statement

DECLARE
  grade CHAR(1);
BEGIN
  grade := 'B';
  CASE
    WHEN grade = 'A' THEN DBMS_OUTPUT.PUT_LINE('Excellent');
    WHEN grade = 'B' THEN DBMS_OUTPUT.PUT_LINE('Very Good');
    WHEN grade = 'C' THEN DBMS_OUTPUT.PUT_LINE('Good');
    WHEN grade = 'D' THEN DBMS_OUTPUT.PUT_LINE('Fair');
    WHEN grade = 'F' THEN DBMS_OUTPUT.PUT_LINE('Poor');
    ELSE DBMS_OUTPUT.PUT_LINE('No such grade');
  END CASE;
END;
-- rather than using the ELSE in the CASE, could use the following
--  EXCEPTION
--    WHEN CASE_NOT_FOUND THEN
--      DBMS_OUTPUT.PUT_LINE('No such grade');
/