我有一个场景。我有一个函数，可以正确计算Non_CombinedSet列的值。此Non_CombinedSet的条件使用case语句根据特定条件进行分组和计数。 （请参阅以下代码：
--Table creation
CREATE TABLE [dbo].[testrun](
[ProcessName] [varchar](50) NULL,
[ProcessMEMid] [varchar](50) NULL,
[ProcessID] [varchar](50) NULL,
[ProcessSequence] [varchar](50) NULL,
[ProcessSheets] [varchar](50) NULL,
[ProcessMABSW] [varchar](50) NULL
) ON [PRIMARY
--insert statement
INSERT INTO [dbo].[testrun]
([ProcessName]
,[ProcessMEMid]
,[ProcessID]
,[ProcessSequence]
,[ProcessSheets]
,[ProcessMABSW])
VALUES
('A1','01-01','X1','1','3','M'),
('B2','01-01','X1','5','2','M'),
('C3','01-02','X1','6','4','M'),
('D4','01-02','X1','10','8','M'),
('E5','01-03','X1','30','18','M'),
('F6','01-03','X1','25','25','M'),
('G7','01-03','X1','50','30','M'),
('H8','01-03','X1','25','15','M'),
('I9','01-04','X1','15','10','M'),
('J10','01-04','X1','15','3','M'),
('K11','01-05','X1','10','2','M'),
('L12','01-05','X1','05','15','M'),
('M13','01-06','X1','05','11','M'),
('N14','01-06','X1','05','13','M'),
('O15','01-01','X1','05','50','M'),
('P16','01-07','X1','05','7','M'),
('Q17','01-07','X1','05','2','S'),
('R18','01-07','X1','05','1','S'),
('S16','01-08','X1','05','7','S'),
('T16','01-08','X1','05','7','S')
--Function Creation
Create FUNCTION [dbo].[fn_HIC_6]
(
@ProcessID VARCHAR(50)
)
RETURNS TABLE
AS
RETURN
(
-- Add the SELECT statement with parameter references here
WITH CTE_Temp AS (
SELECT
ProcessName =
CASE
WHEN ProcessSheets >= 1 AND ProcessSheets <= 5 THEN '1of'
WHEN ProcessSheets >= 6 AND ProcessSheets <= 10 THEN '2of'
WHEN ProcessSheets >= 11 AND ProcessSheets <= 16 THEN '3of'
WHEN ProcessSheets >= 17 AND ProcessSheets <= 50 THEN '4of'
WHEN ProcessSheets > 50 THEN '5of'
END
, ProcessMABSW
,ProcessID
,[ProcessMEMid]
FROM [dbo].[testrun]
)
SELECT ProcessName = CASE WHEN GROUPING(ProcessName) = 0 THEN ProcessName ELSE 'Total' END
--,Combined_Set = COUNT(DISTINCT(CASE WHEN ProcessMABSW = 'M' THEN [ProcessMEMid] END))
,Combined_Set = COUNT(CASE WHEN ProcessMABSW = 'M' THEN ProcessMABSW END)
, Non_CombinedSet = COUNT(CASE WHEN ProcessMABSW <> 'M' THEN ProcessMABSW END)
FROM CTE_Temp
WHERE ProcessID=@ProcessID
GROUP BY GROUPING SETS (ProcessName, ())
)
但是，对于Combined_Set列，我无法正确计算出我要查找的内容。孤立地，我可以很容易地得到正确的结果。请参阅以下代码：
--Combined_Set
WITH CTE_TEMP
AS
(
SELECT
[ProcessMEMid],Sum(isNULL(Cast([ProcessSheets] as int),0)) Combined
,COUNT([ProcessMEMid]) AS 'Total'
FROM [dbo].[testrun]
WHERE [ProcessID]='X1'
AND [ProcessMABSW]='M'
GROUP BY
[ProcessMEMid]
)SELECT
CASE
WHEN Combined >= 1 AND Combined <= 5 THEN '1of'
WHEN Combined >= 6 AND Combined <= 10 THEN '2of'
WHEN Combined >= 11 AND Combined <= 16 THEN '3of'
WHEN Combined >= 17 AND Combined <= 49 THEN '4of'
WHEN Combined > 49 THEN '5of'
--WHEN Combined >=1 AND Combined > 49 THEN CAST([Total] as varchar(10))
ELSE CAST([Total] as varchar(10))
END
,
COUNT([ProcessMEMid]) AS 'Combined'
FROM CTE_TEMP
GROUP BY
CASE
WHEN Combined >= 1 AND Combined <= 5 THEN '1of'
WHEN Combined >= 6 AND Combined <= 10 THEN '2of'
WHEN CombIned >= 11 AND Combined <= 16 THEN '3of'
WHEN Combined >= 17 AND Combined <= 49 THEN '4of'
WHEN Combined > 49 THEN '5of'
--WHEN Combined >=1 AND Combined > 49 THEN CAST([Total] as varchar(10))
ELSE CAST([Total] as varchar(10))
END
UNION
SELECT
CASE
WHEN 1=1 THEN 'Total'
WHEN 2=2 THEN 'Total'
WHEN 3=3 THEN 'Tota'
WHEN 4=4 THEN 'Total'
WHEN 5=5 THEN 'Total'
END
,COUNT(distinct [ProcessMEMid]) AS 'Total'
FROM [dbo].[testrun]
WHERE ProcessID='X1'
AND ProcessMABSW='M'
以上返回正确的值。我现在的问题是如何将Combined_Set查询合并到我的函数中（代码的这一部分Combined_Set = COUNT(CASE WHEN ProcessMABSW = 'M' THEN ProcessMABSW END)
任何意见都将受到赞赏。
答案 0 :(得分：0)
你可以试试这个： -
SELECT ProcessName = CASE WHEN GROUPING(ProcessName) = 0 THEN ProcessName ELSE 'Total' END
,Combined_Set = CASE WHEN ProcessMABSW = 'M' THEN COUNT(ProcessMABSW) ELSE 0 END
, Non_CombinedSet = CASE WHEN ProcessMABSW <> 'M' THEN COUNT(ProcessMABSW) ELSE 0 END
FROM CTE_Temp
WHERE ProcessID=@ProcessID
GROUP BY GROUPING SETS (ProcessName, ())
答案 1 :(得分：0)
所以我理解的是你想要将代码的两个部分组合成一个函数。如果下面提到的功能适合您，请告诉我。您可以根据需要在下面的功能中进行调整：
alter function testfn(@processid as varchar(100))
returns table
as
return
(
with cte1 as
(
select isnull(cast(case
when ProcessSheets between 1 and 5 then '1of'
when ProcessSheets between 6 and 10 then '2of'
when ProcessSheets between 11 and 16 then '3of'
when ProcessSheets between 17 and 50 then '4of'
when ProcessSheets > 50 then '5of'
end as varchar(100)),'Total') as processname,
count(case when processmabsw = 'M' then 1 end) as combined_set,
count(case when processmabsw <> 'M' then 1 end) as noncombined_set,
processid
from testrun
group by
grouping sets(case
when ProcessSheets between 1 and 5 then '1of'
when ProcessSheets between 6 and 10 then '2of'
when ProcessSheets between 11 and 16 then '3of'
when ProcessSheets between 17 and 50 then '4of'
when ProcessSheets > 50 then '5of'
end,()),processid
),cte2 as
(
select processmemid,sum(cast(processsheets as int)) as combined,count(processmemid) as total,processid
from testrun
where processmabsw = 'm'
group by processmemid,processid
),cte3 as
(
select isnull(cast(case
when combined between 1 and 5 then '1of'
when combined between 6 and 10 then '2of'
when combined between 11 and 16 then '3of'
when combined between 17 and 49 then '4of'
when combined > 49 then '5of'
end as varchar(10)),'Total') as processname,count(ProcessMEMid) as combined,processid
from cte2
group by
grouping sets(case
when combined between 1 and 5 then '1of'
when combined between 6 and 10 then '2of'
when combined between 11 and 16 then '3of'
when combined between 17 and 49 then '4of'
when combined > 49 then '5of'
end,()),processid
)
select a.processname,a.combined_set,a.noncombined_set,b.combined from cte1 as a
left join cte3 as b
on a.processname = b.processname
where a.processid = @processid
)
go
select * from testfn('x1')