[프로그래머스/ORACLE] 자동차 대여 기록 별 대여 금액 구하기

Programmers/Query/자동차 대여 기록 별 대여 금액 구하기/Sanghoo.sql

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+SELECT AA.HISTORY_ID
+     , (DAILY_FEE - (DAILY_FEE * (NVL(DISCOUNT_RATE, 0) * 0.01))) * DURATION AS FEE
+FROM (
+         SELECT HISTORY_ID
+              , A.DAILY_FEE
+              , A.CAR_TYPE
+              , END_DATE - START_DATE + 1 AS DURATION
+              , CASE WHEN END_DATE - START_DATE >= 90
+                         THEN '90일 이상'
+                     WHEN END_DATE - START_DATE >= 30
+                         THEN '30일 이상'
+                     WHEN END_DATE - START_DATE >= 7
+                         THEN '7일 이상'
+                     ELSE '7일 미만'
+             end AS DURATION_TYPE
+         FROM CAR_RENTAL_COMPANY_CAR A
+            , CAR_RENTAL_COMPANY_RENTAL_HISTORY B
+         WHERE A.CAR_TYPE = '트럭'
+           AND A.CAR_ID = B.CAR_ID
+     ) AA
+         LEFT OUTER JOIN CAR_RENTAL_COMPANY_DISCOUNT_PLAN C
+                         ON AA.DURATION_TYPE = C.DURATION_TYPE
+                             AND C.CAR_TYPE = AA.CAR_TYPE
+ORDER BY FEE DESC, HISTORY_ID DESC;