日期:2014-05-18 浏览次数:20821 次
select e.EshowName,e.id,e.IsJingTai,e.StartTime,g.ChGName,g.Id as CGId,d.Ding,d.Cai,e.zhangshangadd,(select count(1) from TEshowPic where EshowPicTypeNo=1 and TEshowNo=e.id ) as tucount from TEshow e left join TChangGuan g on e.TChangGuanno=g.id left join TDingCai d on d.ParentNo=e.id where e.id in (select e.id from (select e.id from (select top 0 e.id from TEshow e left join TChangGuan g on e.TChangGuanno=g.id left join TDingCai d on d.ParentNo=e.id where e.IsTag=1 and e.DelTag=0 and e.TBigSortNo=1 and (d.TypeNo=1 or d.TypeNo is null) and e.userno=1 and datediff(d,getdate(),StartTime)<=0 and e.SysCityNo=1 and e.TSmallSort like '%装备制造业%'order by e.StartTime desc,e.id desc) as e union all select * from (select top 26 e.id from TEshow e left join TChangGuan g on e.TChangGuanno=g.id left join TDingCai d on d.ParentNo=e.id where e.IsTag=1 and e.DelTag=0 and e.TBigSortNo=1 and (d.TypeNo=1 or d.TypeNo is null) and e.userno=1 and datediff(d,getdate(),StartTime)<=0 and e.SysCityNo=1 and e.TSmallSort like '%装备制造业%'order by e.StartTime desc,e.id desc) as b ) e group by e.id having count(e.id)=1 ) order by e.StartTime desc,e.id desc
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这么多子查询,先把子查询放在临时表里 然后再从临时表里取数据
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首先膜拜一下写这个代码的人
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写这么长的代码的人都是坑爹的
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--这样看着累不累??
select
 e.EshowName,e.id,e.IsJingTai,e.StartTime,g.ChGName,g.Id as CGId,d.Ding,d.Cai,e.zhangshangadd,
 (select count(1) from TEshowPic where EshowPicTypeNo=1 and TEshowNo=e.id ) as tucount from TEshow e 
left join
 TChangGuan g on e.TChangGuanno=g.id 
left join
 TDingCai d on d.ParentNo=e.id 
where
 e.id 
in
 (select  
    e.id 
    from 
      (select 
          e.id 
       from (select
                 top 0 e.id 
             from
                 TEshow e left join TChangGuan g on e.TChangGuanno=g.id left join TDingCai d on d.ParentNo=e.id 
             where
                 e.IsTag=1 and e.DelTag=0 and e.TBigSortNo=1  and (d.TypeNo=1 or d.TypeNo is null) and  e.userno=1 
              and 
                datediff(d,getdate(),StartTime)<=0 and e.SysCityNo=1 and e.TSmallSort like '%装备制造业%'order by e.StartTime desc,e.id desc) as e
             union all
             select
                * 
              from
                (select 
                    top 26 e.id 
                 from
                    TEshow e 
                 left join
                    TChangGuan g on e.TChangGuanno=g.id left join TDingCai d on d.ParentNo=e.id 
                 where
                    e.IsTag=1 and e.DelTag=0 and e.TBigSortNo=1  and (d.TypeNo=1 or d.TypeNo is null) and  e.userno=1  
                 and 
                     datediff(d,getdate(),StartTime)<=0 and e.SysCityNo=1 
                 and e.TSmallSort like '%装备制造业%'order by e.StartTime desc,e.id desc) as b ) e 
group by
    e.id 
having
    count(e.id)=1 ) 
order by
    e.StartTime desc,e.id desc
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