Question

你可以帮助我吗？

我提出了这个问题：

SELECT  DISTINCT(CAMPAIGN),
     count(STATUS)
FROM    
C18_101 INNER JOIN CLIENT_10 ON C18_101.ID = CLIENT_10.ID
WHERE CAMPAIGN in ('Batch 1','Batch 2','Batch 3','Batch 4','Batch 5') AND STATUS = 'Pending' 
GROUP BY  CAMPAIGN,STATUS

结果如下：

Batch 2     241

Batch 3     321

Batch 4     575

Batch 5     429

即使没有Batch1，我也需要Batch1的结果。

Answer 1

SELECT  CAMPAIGN,
     count(STATUS)
FROM    C18_101 
LEFT JOIN CLIENT_10 ON C18_101.ID = CLIENT_10.ID AND STATUS = 'Pending' 
WHERE CAMPAIGN in ('Batch 1','Batch 2','Batch 3','Batch 4','Batch 5') 
GROUP BY  CAMPAIGN

Answer 2

SELECT
     X.CAMPAIGN,
     count(STATUS)
FROM
    (SELECT DISTINCT CAMPAIGN FROM C18_101) X
    LEFT JOIN
    CLIENT_10 C ON X.ID = C.ID AND C.STATUS = 'Pending' 
GROUP BY
    X.CAMPAIGN

您可以是GROUP BY或聚合，而不是两者
您在JOIN之前有所区别，以确保您的计数在每个CAMPAIGN中都是正确的
您真的需要广告系列过滤器吗？如果是，请添加到派生表X

SQL从IN（）中的每个项目返回结果

2 个答案: