0

私は何千ものレコードを含むテーブルを持っています。以下のクエリを使用して 30 秒で結果を取得していますが、動作が非常に遅いです。どうすればもっとうまくやれるでしょうか？

 WITH cte AS 
 (select 
     ROW_NUMBER() OVER(ORDER BY sb.nbofviews desc) AS ROW,   
     sb.ImageId, sb.LicenceType, sb.ImgCollection, sb.nbofviews, 
     sb.orientation, sb.shootdate, sd.ImgName, sd.Caption, sd.ImgPath, 
     sd.ImageType, sd.ImgHoverPath, sc.image_color 
  from 
     SearchBrain sb,SearchDetails sd, searchcolors sc 
  where 
     sc.Imageid = sd.Imageid 
     and sb.ImageId = sd.ImageId 
     and sd.imageid in (select ImageId 
                        from SearchInitial 
                        where Primarykeyword = 
                             (Select top 1 Primary_kwd 
                              from p2_kwdmgmt 
                              where all_kwd = 'man') 
                        intersect 
                        select ImageId 
                        from SearchInitial 
                        where Primarykeyword = 
                              (Select top 1 Primary_kwd 
                               from p2_kwdmgmt 
                               where all_kwd = 'jumping') 
                        intersect 
                        select ImageId 
                        from SearchInitial 
                        where Primarykeyword = 
                              (Select top 1 Primary_kwd 
                               from p2_kwdmgmt 
                               where all_kwd = 'beach')
                       )
) 
SELECT * 
FROM cte 
WHERE ROW BETWEEN 0 AND 31
4

2 に答える 2

0

これを試してください。お役に立てれば。

 WITH cte AS 
 (select 
     ROW_NUMBER() OVER(ORDER BY sb.nbofviews desc) AS ROW,   
     sb.ImageId, sb.LicenceType, sb.ImgCollection, sb.nbofviews, 
     sb.orientation, sb.shootdate, sd.ImgName, sd.Caption, sd.ImgPath, 
     sd.ImageType, sd.ImgHoverPath, sc.image_color 
  from (SELECT * FROM SearchDetails 
        WHERE imageid in (select ImageId 
                        from SearchInitial 
                        where Primarykeyword = 
                             (Select top 1 Primary_kwd 
                              from p2_kwdmgmt 
                              where all_kwd = 'man'))
              OR imageid in (select ImageId 
                        from SearchInitial 
                        where Primarykeyword = 
                             (Select top 1 Primary_kwd 
                              from p2_kwdmgmt 
                              where all_kwd = 'jumping'))
              OR imageid in (select ImageId 
                        from SearchInitial 
                        where Primarykeyword = 
                             (Select top 1 Primary_kwd 
                              from p2_kwdmgmt 
                              where all_kwd = 'beach'))
        ) sd
     INNER JOIN SearchBrain sb ON sd.ImageId = sb.ImageId
     INNER JOIN searchcolors sc ON sd.ImageId = sc.ImageId 
) 
SELECT * 
FROM cte 
WHERE ROW BETWEEN 0 AND 31
于 2013-08-03T10:09:17.187 に答える