SQL - 별칭 별 필드 합계

Question

나열된 모든 필드의 합계를 찾으려고하지만 하위 쿼리 인 경우 별칭을 사용해야합니다. 나열된 별칭을 사용하면 열/필드를 알 수없는 오류가 발생합니다 ... 그룹을 기준으로 합계 (점)를 시도하면 그룹 조항 오류가 잘못 표시됩니다.

SELECT DISTINCT pr.competitorID AS compID, pr.age, CONCAT(pr.firstname, ' ', pr.lastname)AS name 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=1 AND participation_reports.competitorID=compID LIMIT 1) AS '100m' 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=25 AND participation_reports.competitorID=compID LIMIT 1) AS '200m' 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=37 AND participation_reports.competitorID=compID LIMIT 1) AS '400m' 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=49 AND participation_reports.competitorID=compID LIMIT 1) AS '800m' 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=61 AND participation_reports.competitorID=compID LIMIT 1) AS '1500m' 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=67 AND participation_reports.competitorID=compID LIMIT 1) AS '3000m' 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=69 AND participation_reports.competitorID=compID LIMIT 1) AS 'Javelin' 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=81 AND participation_reports.competitorID=compID LIMIT 1) AS 'Shot Put' 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=93 AND participation_reports.competitorID=compID LIMIT 1) AS 'Discus' 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=105 AND participation_reports.competitorID=compID LIMIT 1) AS 'High Jump' 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=117 AND participation_reports.competitorID=compID LIMIT 1) AS 'Long Jump' 
, (SELECT SUM(participation_reports.points) FROM participation_reports WHERE participation_reports.competitorID=compID) AS total 
FROM participation_reports AS pr 
JOIN event_data on event_data.eventID=pr.heatEventID 
WHERE event_data.minAge <= pr.age AND event_data.maxAge >= pr.age AND sex = 'F' 
AND total > 0 
LIMIT 30 

어떤 아이디어 주셔서 감사합니다.

Answer 1

파생 테이블로 쿼리 한 다음 합계를 선택하십시오.

Answer 2

이에게 탄 보내기

SELECT 
    pr.competitorID AS compID 
    , pr.age 
    , CONCAT(pr.firstname, ' ', pr.lastname) AS name 
    , SUM(CASE 
     WHEN pr.heatEventID=1 
     THEN pr.points 
     ELSE 0 END) AS "100m" 
    , SUM(CASE 
     WHEN pr.heatEventID=25 
     THEN pr.points 
     ELSE 0 END) AS "200m" 
    ... 
    , SUM(CASE 
     WHEN pr.heatEventID IN (1,25,...) 
     THEN pr.points 
     ELSE 0 END) AS total 
FROM 
    participation_reports pr 
    JOIN event_data 
    ON event_data.eventID = pr.heatEventID 
WHERE 
    ... 
GROUP BY 
    pr.competitorID 
    , pr.age 
    , CONCAT(pr.firstname, ' ', pr.lastname) 

Answer 3

난 당신이 무엇을 필요에 아주 명확하지 않다,하지만 당신은 모든 별칭 컬럼의 합을 원하는 경우, 당신의 문제는 법적 열 아니라는 것을하지 않을 수도 있습니다 이름? 어때요 ...

SELECT DISTINCT pr.competitorID AS compID, pr.age, CONCAT(pr.firstname, ' ', pr.lastname)AS name 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=1 AND participation_reports.competitorID=compID LIMIT 1) AS c_100m 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=25 AND participation_reports.competitorID=compID LIMIT 1) AS c_200m 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=37 AND participation_reports.competitorID=compID LIMIT 1) AS c_400m 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=49 AND participation_reports.competitorID=compID LIMIT 1) AS c_800m 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=61 AND participation_reports.competitorID=compID LIMIT 1) AS c_1500m 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=67 AND participation_reports.competitorID=compID LIMIT 1) AS c_3000m 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=69 AND participation_reports.competitorID=compID LIMIT 1) AS Javelin 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=81 AND participation_reports.competitorID=compID LIMIT 1) AS Shot_Put 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=93 AND participation_reports.competitorID=compID LIMIT 1) AS Discus 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=105 AND participation_reports.competitorID=compID LIMIT 1) AS High_Jump 
, (SELECT participation_reports.points FROM participation_reports WHERE participation_reports.heatEventID=117 AND participation_reports.competitorID=compID LIMIT 1) AS Long_Jump, 
c_100m + c_200m + c_400m + c_800m + c_1500m + c_3000m + Javelin + Shot_Put + High_Jump + Long_Jump 
, (SELECT SUM(participation_reports.points) FROM participation_reports WHERE participation_reports.competitorID=compID) AS total 
FROM participation_reports AS pr 
JOIN event_data on event_data.eventID=pr.heatEventID 
WHERE event_data.minAge <= pr.age AND event_data.maxAge >= pr.age AND sex = 'F' 
AND total > 0 
LIMIT 30 

또는이 문제를 오해 한 적이 있습니까?