Question

select 
     min(MH.sno) as hatchid,(SH.name+'-'+SH1.name) as hatcheryname
    ,convert(varchar,SD.settingdate,103)as settingdate
    ,sum(SD.Recievedeggs) as eggsdispatchqty,sum(SD.quantity) as settingqty
    ,convert(varchar,MH.pulloutdate,103) as Pulloutdate,SD.batchno as flockno
    ,sum(MH.ChicksQnty) as Noofchicks,sum(MH.culls) as culls
    ,cast((round((((MH.ChicksQnty - MH.culls)/SD.quantity)*100),2)) as float) as hatchpercent
    ,sum(cast(round(((SD.quantity*87)/100),0)as int)) as ActSalablechicks
    ,sum((MH.Chicksqnty-  MH.culls))as Salablechicks 
 from 
     K_HM_SetterGetterAllocationDet SD 
     inner join K_HM_SetterDetails MS on SD.sno=MS.ID 
     inner join K_HM_HatcherDetails HD on MS.sno=HD.ID 
     inner join K_HM_MasterHatcherdet MH on HD.Sno=MH.ID 
     inner join K_HM_GetterSetterDet SH on SD.name=SH.sno
     inner join K_HM_GetterSetterDet SH1 on SH1.sno=HD.hatchername  
 where 
     HD.attrited='true' 
     and MH.pulloutdate is not null 
     and MS.pulloutdate is not null  
 group by 
     MH.sno,SH.name,SH1.name,SD.settingdate,MH.pulloutdate,SD.batchno,
     MH.Chicksqnty,MH.culls,SD.quantity 
 order by settingdate desc

我有四个不同的表数据，这四个表有一对一的关系。实际上我想要的是依赖于settingdate列，列的一些总和（列）。我试过这样但是它显示的是不显示行总和的不同行。我怎么写请帮助我。提前致谢

Answer 1

这是一种格式化的评论。从这个查询开始：

select min(MH.sno) as hatchid
,(SH.name+'-'+SH1.name) as hatcheryname

from K_HM_SetterGetterAllocationDet SD 
inner join K_HM_SetterDetails MS on SD.sno=MS.ID 
inner join K_HM_HatcherDetails HD on MS.sno=HD.ID 
inner join K_HM_MasterHatcherdet MH on HD.Sno=MH.ID 
inner join K_HM_GetterSetterDet SH on SD.name=SH.sno
inner join K_HM_GetterSetterDet SH1 on SH1.sno=HD.hatchername  

where HD.attrited='true' 
and MH.pulloutdate is not null 
and MS.pulloutdate is not null  

group by SH.name
,SH1.name

如果未成功运行，请对其进行编辑，直到成功为止。然后添加其他聚合并再次运行它。到现在为止应该没问题。

接下来，将其他字段逐个添加到select和group by子句中。每次运行查询以确保它没问题。在出现错误时处理错误。最终，您将获得一个有效的查询。

Answer 2

如果您使用GROUP BY中的列，则通常不会在MIN, SUM, etc.的同一列上使用聚合函数（SELECT）。

单独查看K_HM_MasterHatcherDet表，我们可以看到以下查询（基于原始查询）：

 SELECT MIN(MH.sno) AS hatchid,
        CONVERT(varchar, MH.pulloutdate, 103) as Pulloutdate,
        SUM(MH.ChicksQnty) as Noofchicks,
        SUM(MH.culls) as culls,
        SUM(MH.Chicksqnty - MH.culls) as Salablechicks 
   FROM K_HM_MasterHatcherdet AS MH
  WHERE MH.pulloutdate IS NOT NULL
  GROUP BY MH.sno, MH.pulloutdate, MH.Chicksqnty, MH.culls

此处的问题是，GROUP BY会返回每个不同的MH.sno, MH.PulloutDate, MH.Hicksqnty, MH.Culls，因此MIN(MH.sno)之类的内容无法实现任何目标。

最好的方法是首先获得所有记录，如下所示：

 SELECT MH.sno AS hatchid,
        CONVERT(varchar, MH.pulloutdate, 103) as Pulloutdate,
        MH.ChicksQnty as Noofchicks,
        MH.culls as culls,
        (MH.Chicksqnty - MH.culls) as Salablechicks 
   FROM K_HM_MasterHatcherdet AS MH
  WHERE MH.pulloutdate IS NOT NULL

然后从那时起构建GROUP BY和聚合函数。

下面我得到每个HatchId和PulloutDate的总数：

 SELECT MH.sno AS hatchid,
        CONVERT(varchar, MH.pulloutdate, 103) as Pulloutdate,
        SUM(MH.ChicksQnty) as Noofchicks,
        SUM(MH.culls) as culls,
        SUM(MH.Chicksqnty - MH.culls) as Salablechicks 
   FROM K_HM_MasterHatcherdet AS MH
  WHERE MH.pulloutdate IS NOT NULL
  GROUP BY MH.sno, MH.PulloutDate

这里的主要内容是GROUP BY句柄MH.sno和MH.PulloutDate，而聚合函数则对查询中的其余列进行操作。

按功能分组不在sql server中工作？

2 个答案: