Question

我有一个SQL语句，我试图为所有JobTypes提取总和，例如，如果有5个名为“Process”的作业，它们应该只显示一行，其中包含GB和KB的总和。我该如何做到这一点？感谢。

所以我会表示： - jpavlov 10分钟前 DEC 1,2012，Data Extrat，sum（60），sum（56） - jpavlov 8分钟前
DEC 1,2012，Process，sum（60），sum（56）

   SELECT 

Jobs.DateCompleted  AS 'DateCompleted',
JobTypes.Name AS 'JobName',
SUM(Metrics.GB) AS GB, 
SUM(Metrics.KB) AS KB
FROM Metrics 

INNER JOIN
Jobs ON Jobs.JobId = Metrics.JobId 
INNER JOIN

Projects ON Projects.ProjectId = Jobs.ProjectId 

INNER JOIN
JobTypes ON JobTypes.JobTypeId = Jobs.JobTypeId

WHERE Jobs.DateCompleted 
Between '12/01/2012' AND '12/03/2012' 

GROUP BY  
Jobs.DateCompleted, 
JobTypes.Name

2012-12-01 04:28:15.477 Data Extract    0.200   210903.738
2012-12-01 04:40:07.913 Data Extract    0.781   819388.602
2012-12-01 04:48:45.493 Data Extract    5.278   5538731.844
2012-12-01 04:54:55.483 Data Extract    6.927   7265870.682
2012-12-01 14:11:38.357 Export  13.189  13828648.369
2012-12-01 16:57:54.840 Process 2.054   2156185.331

Answer 1

从CAST (Jobs.DateCompleted AS VARCHAR(MAX))以及SELECT删除GROUP BY。

假设：JobTypes.Name和JobTypes.JobTypeId有1对1的映射。

修改

SELECT JobTypes.Name AS 'JobName', SUM(Metrics.GB) AS GB, SUM(Metrics.KB) AS KB FROM Metrics INNER JOIN Jobs ON Jobs.JobId = Metrics.JobId INNER JOIN Projects ON Projects.ProjectId = Jobs.ProjectId INNER JOIN JobTypes ON JobTypes.JobTypeId = Jobs.JobTypeId WHERE Jobs.DateCompleted Between '12/01/2012' AND '12/03/2012' GROUP BY JobTypes.Name

要获得Name字段总结的结果，您必须从DateCompleted以及Select中删除Group By。

EDIT2：

看看this question并修改你的sql。

SELECT convert(varchar(10), Jobs.DateCompleted, 120) AS DateCompleted JobTypes.Name AS 'JobName', SUM(Metrics.GB) AS GB, ..... ..... GROUP BY convert(varchar(10), Jobs.DateCompleted, 120), JobTypes.Name

所有工作的总和

1 个答案: