조건별로 분류하여 주문상태 출력하기

SELECT ORDER_ID, PRODUCT_ID, DATE_FORMAT(OUT_DATE, '%Y-%m-%d') AS OUT_DATE,
    CASE 
        WHEN OUT_DATE <= '2022-05-01' THEN '출고완료'
        WHEN OUT_DATE > '2022-05-01' THEN '출고대기'
        ELSE '출고미정'
    END AS '출고여부'
FROM FOOD_ORDER
ORDER BY ORDER_ID ASC;