如何为select require列编写查询并从不同的表中计数

Question

我在mvc3工作，我需要一些帮助

这里我有一些表（BugId）

错误ID标题说明ProjectId版本BuildNumber EmployeId CategoryID CreatedDate SeverityID PriorityID ReleasePhaseID TypeID

2银行业务应用程序1新版本新版本1 1 00：00：00.00 1 1 1 1

（项目表）

=============================================== ======

 Projectid  ProjectName Description        Status

1   Finance     This is Finance Project    Active
2   Uniformatic This is Finance Project    Active
3   ProDuct     This is Finance Project    InActive
4   Cloud       This is Finance Project    INActive
5   Banking     This is Finance Project    Progress

6电子商务这是财务项目活跃

RealesePhase（表格）

=============================================== =====================

 ReleasePhaseID    ReleasePhase

1       DEV
2       QA
3       Alpha
4       Beta

5直播

Tostatus（表）

=============================================== ====

ToStatusId        Tostatus

1       New
2       Assigned
3       Fixed
4       Re-Opened
5       Closed
6       Deffered

7不是错误

Bughistory（表）

BugHistoryID BugID FixedByID AssignedTo Resolution FromStatus ToStatus

5                  2         1            1     this is my banking     New           New
7                  2         1            1     this assignto res                km,l

=============================================== ================================================== =====

这里我有这些表现在我必须写一个查询来选择ProjectName（下拉列表） 和（ReleasePhase）从它（开放）（关闭）（fixedBy）

在Bugs表中的

错误将从中记录（插入），所以现在我们必须选择Project Name＆amp;如果我们选择项目名称，ReleasePhase作为下拉列表我应该得到我们拥有的Bugs No（计数）

从它开始就像 （查看）应该喜欢这个

=============================================== ======================

ProjectName RealesePhase openBugs ClosedBugs fixedBy

                 1         New         EmployeName
                 2         Assigned    EmployeName
                 3         Fixed       EmployeName
                 4         Re-Opened   EmployeName

=============================================== =======================

所以plz帮我写了一个查询计数，并显示了Employee插入了多少bug以及释放了多少bug以及关闭了多少

提前致谢

Answer 1

你最好使用存储过程...我认为你需要根据你的状态表和Releasephase和ProjectId来计算错误。这是我想通过看到你的问题希望它可以帮助你....

 Create procedure [dbo].[ProjectReports]
 (
 @ProjectID int,
 @ReleasePhaseID int
 )
 as
 begin
 select distinct projectName,ReleasePhase,
(Select  COUNT(1) from Bugs where ProjectId=a.ProjectId and ReleasePhaseID=a.ReleasePhaseID and
bugid in (select BugID from BugHistory where [status]='New')) as Newbugs,
(Select  COUNT(1) from Bugs where ProjectId=a.ProjectId and  ReleasePhaseID=a.ReleasePhaseID and 
bugid in (select BugID from BugHistory where [status]='Assigned')) as Assignedbugs,
(Select  COUNT(1) from Bugs where ProjectId=a.ProjectId and ReleasePhaseID=a.ReleasePhaseID and
bugid in (select BugID from BugHistory where [status]='Fixed')) as Fixedbugs,
(Select  COUNT(1) from Bugs where ProjectId=a.ProjectId and ReleasePhaseID=a.ReleasePhaseID and
bugid in (select BugID from BugHistory where [status]='Re-Opened')) as Reopenedbugs,
(Select  COUNT(1) from Bugs where ProjectId=a.ProjectId and ReleasePhaseID=a.ReleasePhaseID and
bugid in (select BugID from BugHistory where [status]='Closed')) as Closedbugs,
(Select  COUNT(1) from Bugs where ProjectId=a.ProjectId and ReleasePhaseID=a.ReleasePhaseID  and
 bugid in (select BugID from BugHistory where [status]='Deffered')) as Defferedbugs,
(Select  COUNT(1) from Bugs where ProjectId=a.ProjectId and ReleasePhaseID=a.ReleasePhaseID and
 bugid in (select BugID from BugHistory where [status]='Not a Bug')) as NotaBug
 from Bugs a
inner join Projects p on p.ProjectId=a.ProjectId
 inner join ReleasePhase Rp on rp.ReleasePhaseID=a.ReleasePhaseID
where a.ProjectId=@ProjectID and a.ReleasePhaseID=@ReleasePhaseID
end