SQL SELECT查询排除值

Question

美好的一天，

我想选择与平均领域

SELECT 
    CAST(SurveyDept AS NVARCHAR(100)) as Dept_name, 
    CAST(SurveySubDept AS NVARCHAR(100)) as Subdept_name 
    AVG(SurveyReachability) as total_R, 
    AVG(SurveyProfessionalism) as total_P, 
    AVG(SurveyProactiveness) as total_Pr, 
    AVG(SurveyCompetence) as total_C, 
    AVG(SurveyResponse) as total_Re 
FROM 
    dbo.tb_SurveyDeptInfo 
GROUP BY 
    CAST(SurveyDept AS NVARCHAR(100)), 
    CAST(SurveySubDept AS NVARCHAR(100)) 
ORDER BY 
    CAST(SurveyDept AS NVARCHAR(100)), 
    CAST(SurveySubDept AS NVARCHAR(100)) 

结果看起来像这样的一个表：

什么我想要做的是排除具有值（转移）和值（检查&公用事业服务付款）的“子部门名称”（如果存在）

所以我加了（按顺序）后，下方：

WHERE Subdept_name NOT IN (SELECT * 
          FROM dbo.tb_SurveyDeptInfo 
          WHERE CAST(SurveySubDept AS NVARCHAR(100)) = 'Transfers' 
           OR CAST(SurveySubDept AS NVARCHAR(100)) = 'Check & Utility Service Payments') 

你能劝哪里出了问题，它不返回任何记录

Answer 1

只要你WHERE子句添加到整个查询：

SELECT CAST(SurveyDept AS NVARCHAR(100)) as Dept_name, 
     CAST(SurveySubDept AS NVARCHAR(100)) as Subdept_name 
     AVG(SurveyReachability) as total_R, 
     AVG(SurveyProfessionalism) as total_P, 
     AVG(SurveyProactiveness) as total_Pr, 
     AVG(SurveyCompetence) as total_C, 
     AVG(SurveyResponse) as total_Re 
FROM dbo.tb_SurveyDeptInfo 
WHERE CAST(SurveySubDept AS NVARCHAR(100)) NOT IN ('Transfers', 'Check & Utility Service Payments') 
GROUP BY CAST(SurveyDept AS NVARCHAR(100)), CAST(SurveySubDept AS NVARCHAR(100)) 
ORDER BY CAST(SurveyDept AS NVARCHAR(100)),CAST(SurveySubDept AS NVARCHAR(100)); 

由于您有IN (SELECT * . .)，因此您的查询不起作用。子查询返回多个列，因此会出现错误。

我不明白你为什么要对NVARCHAR(100)做明确的情况。这些似乎只是混淆了查询。我会尝试：

SELECT SurveyDept as Dept_name, SurveySubDept as Subdept_name 
     AVG(SurveyReachability) as total_R, 
     AVG(SurveyProfessionalism) as total_P, 
     AVG(SurveyProactiveness) as total_Pr, 
     AVG(SurveyCompetence) as total_C, 
     AVG(SurveyResponse) as total_Re 
FROM dbo.tb_SurveyDeptInfo 
WHERE SurveySubDept NOT IN ('Transfers', 'Check & Utility Service Payments') 
GROUP BY SurveyDept, SurveySubDept 
ORDER BY SurveyDept, SurveySubDept; 

Answer 2

试试这个

select * from (
SELECT CAST(SurveyDept AS NVARCHAR(100)) as Dept_name, 
CAST(SurveySubDept AS NVARCHAR(100)) as Subdept_name 
AVG(SurveyReachability) as total_R, 
AVG(SurveyProfessionalism) as total_P, 
AVG(SurveyProactiveness) as total_Pr, 
AVG(SurveyCompetence) as total_C, 
AVG(SurveyResponse) as total_Re 
FROM dbo.tb_SurveyDeptInfo GROUP BY CAST(SurveyDept AS NVARCHAR(100)), CAST(SurveySubDept AS NVARCHAR(100)) 
ORDER BY CAST(SurveyDept AS NVARCHAR(100)),CAST(SurveySubDept AS NVARCHAR(100)) 
) tmp 
WHERE tmp.Subdept_name NOT IN (
SELECT * 
FROM dbo.tb_SurveyDeptInfo 
WHERE 
CAST(SurveySubDept AS NVARCHAR(100)) = 'Transfers' 
OR 
CAST(SurveySubDept AS NVARCHAR(100)) = 'Check & Utility Service Payments' 
)