[Programmers Lv.4] 취소되지 않은 진료 예약 조회하기 - 132204

Question

 

PATIENT, DOCTOR 그리고 APPOINTMENT 테이블에서 2022년 4월 13일 취소되지 않은 흉부외과(CS) 진료 예약 내역을 조회하는 SQL문을 작성해주세요. 진료예약번호, 환자이름, 환자번호, 진료과코드, 의사이름, 진료예약일시 항목이 출력되도록 작성해주세요. 결과는 진료예약일시를 기준으로 오름차순 정렬해주세요.

Code (After 25.04, 25.06)

 

SELECT 
        A.APNT_NO
        , P.PT_NAME
        , P.PT_NO
        , A.MCDP_CD
        , D.DR_NAME
        , A.APNT_YMD
FROM (SELECT * FROM APPOINTMENT WHERE APNT_CNCL_YN = 'N'
                                    AND APNT_YMD LIKE '2022-04-13%'
                                    AND MCDP_CD = 'CS') A
JOIN PATIENT P ON A.PT_NO = P.PT_NO
JOIN DOCTOR D ON A.MDDR_ID = D.DR_ID
ORDER BY 6

 

Code (Before)

 

SELECT APNT_NO, PT_NAME, P.PT_NO, A.MCDP_CD, D.DR_NAME, APNT_YMD
    FROM PATIENT P
    JOIN APPOINTMENT A
      ON P.PT_NO = A.PT_NO
    JOIN DOCTOR D
      ON D.DR_ID = A.MDDR_ID
    WHERE A.MCDP_CD = 'CS' AND APNT_YMD LIKE '2022-04-13%' AND APNT_CNCL_YN = 'N'
    ORDER BY 6

 

now me

On my github