Question

我使用查询作为存储过程，但COUNT函数不起作用，即它不计算coulmns。当我只分组三列时，它才能正常工作。但是分组超过三列创建问题，计数列分别显示值...不计算数字...帮助plzz

CREATE PROCEDURE[dbo].[getNoOfComplaints_SP] 
@Depart_ID INT, 
@City_ID INT, 
@Nature_ID INT, 
@Detail_ID INT, 
@Status_ID INT, 
@Category_ID INT, 
@Source_ID INT, 
@Gender_ID INT 

AS BEGIN SET NOCOUNT ON; 
SELECT Department_Info.Depart_Name, COUNT(Complaint_Info.Depart_ID) AS NumberOfComplaints 
FROM Complaint_Info 
LEFT JOIN Department_Info 
ON Complaint_Info.Depart_ID = Department_Info.Depart_ID 
GROUP BY 
Department_Info.Depart_Name, 
Complaint_Info.City_ID, 
Complaint_Info.Nature_ID, 
Complaint_Info.Detail_ID, 
Complaint_Info.Status_ID, 
Complaint_Info.Cat_ID, 
Complaint_Info.Source_ID, 
Complaint_Info.G_ID 
Having 
(@City_ID = -1 OR Complaint_Info.City_ID = @City_ID) 
AND
(@Nature_ID = -1 OR Complaint_Info.Nature_ID = @Nature_ID) 
AND 
(@Detail_ID = -1 OR Complaint_Info.Detail_ID = @Detail_ID) 
AND 
(@Status_ID = -1 OR Complaint_Info.Status_ID = @Status_ID) 
AND
(@Category_ID = -1 OR Complaint_Info.Cat_ID = @Category_ID) 
AND
(@Source_ID = -1 OR Complaint_Info.Source_ID = @Source_ID) 
AND 
(@Gender_ID = -1 OR Complaint_Info.G_ID = @Gender_ID) 
END

Answer 1

COUNT函数计算每个组中的行数。如果你添加

Department_Info.Depart_Name,
Complaint_Info.City_ID, 
Complaint_Info.Nature_ID, 
Complaint_Info.Detail_ID, 
Complaint_Info.Status_ID, 
Complaint_Info.Cat_ID, 
Complaint_Info.Source_ID, 
Complaint_Info.G_ID

在GROUP BY子句中，COUNT函数将返回具有相同Depart_Name，City_ID，Nature_ID，Detail_ID，Status_ID，Cat_ID，Source_ID，G_ID的条目数。

所以你可能做错了。

Answer 2

我解决了我的问题...

CREATE PROCEDURE[dbo].[getNoOfComplaints_SP]
@Depart_ID INT,
@City_ID INT,
@Nature_ID INT,
@Detail_ID INT,
@Status_ID INT,
@Category_ID INT,
@Source_ID INT,
@Gender_ID INT
AS
BEGIN
SET NOCOUNT ON;
SELECT Department_Info.Depart_Name, COUNT(abc.Depart_ID) AS NumberOfComplaints FROM
(SELECT Complaint_Info.Depart_ID, COUNT(Complaint_Info.Depart_ID) AS NumberOfComplaints FROM Complaint_Info
GROUP BY Complaint_Info.Depart_ID, Complaint_Info.City_ID, Complaint_Info.Nature_ID, Complaint_Info.Detail_ID, Complaint_Info.Status_ID, Complaint_Info.Cat_ID, Complaint_Info.Source_ID, Complaint_Info.G_ID
Having
(@Depart_ID = -1 OR Complaint_Info.Depart_ID = @Depart_ID)
AND
(@City_ID = -1 OR Complaint_Info.City_ID = @City_ID)
AND
(@Nature_ID = -1 OR Complaint_Info.Nature_ID = @Nature_ID)
AND
(@Detail_ID = -1 OR Complaint_Info.Detail_ID = @Detail_ID)
AND
(@Status_ID = -1 OR Complaint_Info.Status_ID = @Status_ID)
AND
(@Category_ID = -1 OR Complaint_Info.Cat_ID = @Category_ID)
AND
(@Source_ID = -1 OR Complaint_Info.Source_ID = @Source_ID)
AND
(@Gender_ID = -1 OR Complaint_Info.G_ID = @Gender_ID)) AS abc
JOIN Department_Info ON abc.Depart_ID = Department_Info.Depart_ID
Group By Department_Info.Depart_Name
END

MS SQL中的COUNT函数

2 个答案: