MySQL的意見我查詢的輸出，我需要不同的方式

Question

這是我的查詢

Select Count(Case When campaign_pid != 0 Then 1 End) 
    As Email, Count(Case When sms_pid != 0 Then 1 End) 
    As Sms, Count(Case When survey_pid != 0 Then 1 End) 
    As Survey From tablename 

請幫助我，這是我的查詢輸出

Email Sms  Survey  
21  1  4 

我需要這樣的

name value 
Email 21 
Sms  1 
Survey 4 

輸出請告訴我如何得到像以上一樣的選擇

Answer 1

類似下面應該工作

SELECT 'Email' AS Name, Count(Case When campaign_pid != 0 Then 1 End) As Value From tablename 
UNION SELECT 'SMS', Count(Case When sms_pid != 0 Then 1 End)s From tablename 
UNION SELECT 'Survey', Count(Case When survey_pid != 0 Then 1 End) From tablename 

或更好

SELECT 'Email' AS Name, COUNT() AS Value FROM tablename WHERE campaign_pid <> 0 
UNION SELECT 'SMS', COUNT() FROM tablename WHERE sms_pid <> 0 
UNION SELECT 'Survey', COUNT() FROM tablename WHERE survey_pid <> 0 

不是100％肯定您的其他問題，也許這就是你要

SELECT COUNT(DISTINCT some_unique_col) 
    FROM table_name 
WHERE campaign_pid <> 0 
    AND sms_pid <> 0 
    AND survey_pid <> 0 

也許你想要什麼SUM代替COUNT，如果您可以提供一些樣本數據和預期結果，它將有助於