TOPSIC SQL CONTEST

ソースコード

SELECT SV_YEAR,PREFECTURE,KIND,AMT FROM (SELECT SURVEY_YEAR AS SV_YEAR,PF_NAME AS PREFECTURE,"小学校" AS KIND,SUM(ELEMENTARY) AS AMT,A.PF_CODE FROM PREFECTURE AS A,ENROLLMENT_STATUS AS B WHERE SURVEY_YEAR = 2020 AND  A.PF_CODE = B.PF_CODE GROUP BY A.PF_CODE
UNION ALL
SELECT SURVEY_YEAR AS SV_YEAR,PF_NAME AS PREFECTURE,"中学校" AS KIND,SUM(MIDDLE) AS AMT,A.PF_CODE FROM PREFECTURE AS A,ENROLLMENT_STATUS AS B WHERE SURVEY_YEAR = 2020 AND  A.PF_CODE = B.PF_CODE GROUP BY A.PF_CODE
UNION ALL
SELECT SURVEY_YEAR AS SV_YEAR,PF_NAME AS PREFECTURE,"高校" AS KIND,SUM(HIGH) AS AMT,A.PF_CODE FROM PREFECTURE AS A,ENROLLMENT_STATUS AS B WHERE SURVEY_YEAR = 2020 AND  A.PF_CODE = B.PF_CODE GROUP BY A.PF_CODE
UNION ALL
SELECT SURVEY_YEAR AS SV_YEAR,PF_NAME AS PREFECTURE,"短大" AS KIND,SUM(JUNIOR_CLG) AS AMT ,A.PF_CODE FROM PREFECTURE AS A,ENROLLMENT_STATUS AS B WHERE SURVEY_YEAR = 2020 AND  A.PF_CODE = B.PF_CODE GROUP BY A.PF_CODE
UNION ALL
SELECT SURVEY_YEAR AS SV_YEAR,PF_NAME AS PREFECTURE,"大学" AS KIND,SUM(COLLEGE) AS AMT ,A.PF_CODE FROM PREFECTURE AS A,ENROLLMENT_STATUS AS B WHERE SURVEY_YEAR = 2020 AND  A.PF_CODE = B.PF_CODE GROUP BY A.PF_CODE
UNION ALL
SELECT SURVEY_YEAR AS SV_YEAR,PF_NAME AS PREFECTURE,"大学院" AS KIND,SUM(GRADUATE) AS AMT,A.PF_CODE FROM PREFECTURE AS A,ENROLLMENT_STATUS AS B WHERE SURVEY_YEAR = 2020 AND  A.PF_CODE = B.PF_CODE GROUP BY A.PF_CODE
ORDER BY A.PF_CODE
) WHERE AMT IS NOT NULL

提出情報

提出日時	2022/10/19 17:37:48
コンテスト	第2回 SQLコンテスト
問題	就学状況の表示変換
受験者	hiikunZ
状態 (詳細)	AC (Accepted: 正答)
メモリ使用量	96 MB

メッセージ

テストケース(通過数／総数)

2/2

状態

メモリ使用量

データパターン1

96 MB

データパターン2

86 MB