SQL SELECT查詢排除值

Question

美好的一天，

我想選擇與平均領域

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)) 

結果看起來像這樣的一個表：

什麼我想要做的是排除具有值（轉移）和值（檢查&公用事業服務付款）的「子部門名稱」（如果存在）

所以我加了（按順序）後，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') 

你能勸哪裏出了問題，它不返回任何記錄

Answer 1

只要你WHERE子句添加到整個查詢：

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)); 

由於您有IN (SELECT * . .)，因此您的查詢不起作用。子查詢返回多個列，因此會出現錯誤。

我不明白你爲什麼要對NVARCHAR(100)做明確的情況。這些似乎只是混淆了查詢。我會嘗試：

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

試試這個

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' 
)