[PGS] 조건에 부합하는 중고거래 상태 조회하기

문제

예제

내 풀이

SELECT BOARD_ID, WRITER_ID, TITLE, PRICE,
  CASE WHEN STATUS = 'SALE'     THEN '판매중'
       WHEN STATUS = 'RESERVED' THEN '예약중'
       WHEN STATUS = 'DONE'     THEN '거래완료'
       END AS STATUS
FROM USED_GOODS_BOARD
WHERE TO_CHAR(CREATED_DATE, 'YYYY-MM-DD') = '2022-10-05'
ORDER BY BOARD_ID DESC;