[英]I have a query in SQL Server, it takes much time to execute
PFB我的查詢計划
我的查詢輸出
我需要基於所有分配/活動回合獲取所有團隊成員詳細信息
我想優化查詢。 PFB我的查詢。
SELECT Ass.strassociatename,
Ass.strphotolink,
team.strteamname,
team.strteamlogo,
edu.streducationalinstitute,
rounds.strroundname
FROM ccs_vas_tbl_associates Ass,
ccs_vas_tbl_teams team,
ccs_vas_tbl_educationalinstitutes edu,
ccs_vas_tbl_rounds rounds,
ccs_vas_tbl_roundassignment roundass
WHERE team.iteamid = 64
AND ass.iteamid = team.iteamid
AND team.ieducationalinstituteid = edu.iinstituteid
AND Ass.icompetitionid = rounds.icompetitionid
AND roundass.strroundstatus = 'Assigned'
AND roundass.iroundid = rounds.iroundid
AND roundass.iteamid = team.iteamid
可以試試這個
SELECT Ass.strassociatename,
Ass.strphotolink,
team.strteamname,
team.strteamlogo,
edu.streducationalinstitute,
rounds.strroundname
FROM ccs_vas_tbl_associates Ass
JOIN ccs_vas_tbl_teams team ON ass.iteamid = team.iteamid
JOIN ccs_vas_tbl_educationalinstitutes edu ON team.ieducationalinstituteid = edu.iinstituteid
JOIN ccs_vas_tbl_rounds rounds ON Ass.icompetitionid = rounds.icompetitionid
JOIN ccs_vas_tbl_roundassignment roundass ON roundass.iroundid = rounds.iroundid AND roundass.iteamid = team.iteamid
WHERE team.iteamid = 64 AND roundass.strroundstatus = 'Assigned'
您也可以嘗試UPDATE STATISTICS
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