如何在SQL Server 2012中使用存储过程将多行合并为一行？

Question

There are three tables

1. Asset : AssetId, IsDeleted
2. Tracking : TrackingId, AssetId, TrackingStatusId, TrackingDate
3. TrackingStatus : TrackingStatusId, TrackingStatusName, IsDeleted

I want to make Graph of Asset Vs Status means How many percentage Assets are available in particular status.

Stored Procedure :

CREATE proc [dbo].[Sp_Asset_VS_Status] 

@TimeSpan nvarchar(30),
@Duration int    

as    

begin    

Declare @TotalAsset int;  

select @TotalAsset=COUNT(AssetId) from Asset where Isdeleted=0  

if @TotalAsset>0

Begin  

if @TimeSpan='h'

begin
select (100*Count(distinct AssetId))/12 as TotalPercentage, TrackingStatusName from Tracking   
inner join TrackingStatus on TrackingStatus.TrackingStatusId=Tracking.TrackingStatusId   
where Tracking.IsDeleted=0 and TrackingStatus.IsDeleted=0 
and Tracking.TrackingDate between DATEADD(HOUR,-@Duration,GETDATE()) and GETDATE()
Group by TrackingStatus.TrackingStatusName order by TotalPercentage DESC  
End

else if @TimeSpan='d'

begin
select (100*Count(distinct AssetId))/12 as TotalPercentage, TrackingStatusName from Tracking   
inner join TrackingStatus on TrackingStatus.TrackingStatusId=Tracking.TrackingStatusId   
where Tracking.IsDeleted=0 and TrackingStatus.IsDeleted=0 
and Tracking.TrackingDate between DATEADD(DAY,-@Duration,GETDATE()) and GETDATE()
Group by TrackingStatus.TrackingStatusName order by TotalPercentage DESC  
End

else if @TimeSpan='w'

begin
select (100*Count(distinct AssetId))/12 as TotalPercentage, TrackingStatusName from Tracking   
inner join TrackingStatus on TrackingStatus.TrackingStatusId=Tracking.TrackingStatusId   
where Tracking.IsDeleted=0 and TrackingStatus.IsDeleted=0 
and Tracking.TrackingDate between DATEADD(WEEK,-@Duration,GETDATE()) and GETDATE()
Group by TrackingStatus.TrackingStatusName order by TotalPercentage DESC  
End

else if @TimeSpan='m'

begin
select (100*Count(distinct AssetId))/12 as TotalPercentage, TrackingStatusName from Tracking   
inner join TrackingStatus on TrackingStatus.TrackingStatusId=Tracking.TrackingStatusId   
where Tracking.IsDeleted=0 and TrackingStatus.IsDeleted=0 
and Tracking.TrackingDate between DATEADD(MONTH,-@Duration,GETDATE()) and GETDATE()
Group by TrackingStatus.TrackingStatusName order by TotalPercentage DESC  
End

else if @TimeSpan='y'

begin
select (100*Count(distinct AssetId))/12 as TotalPercentage, TrackingStatusName from Tracking   
inner join TrackingStatus on TrackingStatus.TrackingStatusId=Tracking.TrackingStatusId   
where Tracking.IsDeleted=0 and TrackingStatus.IsDeleted=0 
and Tracking.TrackingDate between DATEADD(YEAR,-@Duration,GETDATE()) and GETDATE()
Group by TrackingStatus.TrackingStatusName order by TotalPercentage DESC  
End

Else

begin
select (100*Count(distinct AssetId))/12 as TotalPercentage, TrackingStatusName from Tracking   
inner join TrackingStatus on TrackingStatus.TrackingStatusId=Tracking.TrackingStatusId   
where Tracking.IsDeleted=0 and TrackingStatus.IsDeleted=0 
Group by TrackingStatus.TrackingStatusName order by TotalPercentage DESC  

End

End

End 

So I am getting result in descending order.

I want to display first 6 rows from query. First 5 rows as it is and 6 row is sum of all Total Percentage starting from 6th row as shown in figure.

So after fifth row, How to merge rows into one row and display as others???

Answer 1

Since the Status field value from the 6th record onwards starts with the word "status", you can use the following statement for your 6th/last query in your SQL block and that should give you 1 row that adds up the TotalPercentages for all "status" rows.

begin
    select (100*Count(distinct AssetId))/12 as TotalPercentage
          ,SUBSTRING(UPPER(TrackingStatusName), 1, 6) 
      from Tracking   
     inner 
      join TrackingStatus 
        on TrackingStatus.TrackingStatusId=Tracking.TrackingStatusId   
     where Tracking.IsDeleted=0 and TrackingStatus.IsDeleted=0 
     Group 
        by SUBSTRING(UPPER(TrackingStatus.TrackingStatusName), 1, 6) 
     order 
        by TotalPercentage DESC  

End

In response to the comment, the below updated SQL should work, it should 'Others' as the second column for the last SQL

begin
    select (100*Count(distinct AssetId))/12 as TotalPercentage
          ,SUBSTRING(STUFF(TrackingStatusName, PATINDEX('%______%', TrackingStatusName), 6, 'Others'), 1, 6) 
      from Tracking   
     inner 
      join TrackingStatus 
        on TrackingStatus.TrackingStatusId=Tracking.TrackingStatusId   
     where Tracking.IsDeleted=0 and TrackingStatus.IsDeleted=0 
     Group 
        by SUBSTRING(STUFF(TrackingStatusName, PATINDEX('%______%', TrackingStatusName), 6, 'Others'), 1, 6) 
     order 
        by TotalPercentage DESC  

End