아래에서 쿼리를 최적화 할 수있는 방법이 있습니까?MySQL 쿼리 최적화 합계 케이스
SELECT
DATE_FORMAT(a.duedate,'%d-%b-%y') AS dte,
duedate,
SUM(CASE WHEN (typeofnotice='ddat' AND STATUS='open') THEN 1 ELSE 0 END) AS 'DDatOpen',
SUM(CASE WHEN (typeofnotice='ddat' AND STATUS='closed') THEN 1 ELSE 0 END) AS 'DDatClosed',
SUM(CASE WHEN (b.action='tagunchanged' AND STATUS='closed') THEN 1 ELSE 0 END) AS 'DDatUnchanged',
SUM(CASE WHEN (typeofnotice='rss' AND validindicator IS NULL AND STATUS='open') THEN 1 ELSE 0 END) AS 'RSSValidation',
SUM(CASE WHEN (typeofnotice='rss' AND validindicator=1 AND STATUS='open') THEN 1 ELSE 0 END) AS 'RSSValidOpen',
SUM(CASE WHEN (typeofnotice='rss' AND validindicator=1 AND STATUS='closed') THEN 1 ELSE 0 END) AS 'RSSValidClosed',
SUM(CASE WHEN (typeofnotice='rss' AND validindicator=0) THEN 1 ELSE 0 END) AS 'RSSInvalid',
SUM(CASE WHEN (typeofnotice='copernic' AND validindicator IS NULL AND STATUS='open') THEN 1 ELSE 0 END) AS 'CopernicValidation',
SUM(CASE WHEN (typeofnotice='copernic' AND isaward=1 AND validindicator=1 AND STATUS='open') THEN 1 ELSE 0 END) AS 'CopernicValidAwardOpen',
SUM(CASE WHEN (typeofnotice='copernic' AND isaward=1 AND validindicator=1 AND STATUS='closed') THEN 1 ELSE 0 END) AS 'CopernicValidAwardClosed',
SUM(CASE WHEN (typeofnotice='copernic' AND isaward=1 AND validindicator=0) THEN 1 ELSE 0 END) AS 'CopernicInvalidAward',
SUM(CASE WHEN (typeofnotice='copernic' AND isaward=0 AND validindicator=1 AND STATUS='open') THEN 1 ELSE 0 END) AS 'CopernicOpportunityValidOpen',
SUM(CASE WHEN (typeofnotice='copernic' AND isaward=0 AND validindicator=1 AND STATUS='closed') THEN 1 ELSE 0 END) AS 'CopernicOpportunityValidClosed',
SUM(CASE WHEN (typeofnotice='copernic' AND isaward=0 AND validindicator=0) THEN 1 ELSE 0 END) AS 'CopernicOpportunityInvalid',
SUM(CASE WHEN (typeofnotice='copernic' AND STATUS='limited') THEN 1 ELSE 0 END) AS 'CopernicLimitation',
SUM(CASE WHEN ((validindicator IS NULL OR validindicator = 1) AND STATUS='open') THEN 1 ELSE 0 END) AS 'TotalNotices',
SUM(CASE WHEN (validindicator=1 AND STATUS='closed') THEN 1 ELSE 0 END) AS 'TotalCompleted',
SUM(CASE WHEN (validindicator=0 AND (typeofnotice='wget' OR typeofnotice='copernic' OR typeofnotice='rss')) THEN 1 ELSE 0 END) AS 'TotalInvalid'
FROM tblNotices AS a LEFT JOIN tblTransactions AS b
ON a.id = b.noticeid WHERE b.noticeid IS NOT NULL
WHERE duedate >= '2011-04-04 00:00:00' AND a.duedate <= '2012-05-08 24:00:00'
GROUP BY dte
ORDER BY dueDate ASC;
tblTransactions은 150 만 행 tblNotices을 가지고 900K 행이 있습니다.
쿼리가 약 1 분 동안 실행됩니다. 정상입니까? 이 쿼리를 최적화 할 수있는 방법이 있습니까?
는 여기가 어떤 조언되어 있습니다 ..DATE_FORMAT
기능은 여기에 정말 성능을 죽이고 생각? 그것은 약 58 초 동안 실행됩니다.
검색어 및 두 테이블의 스키마에 대해 'EXPLAIN' 출력을 게시하십시오. – eggyal