tSQL NOT IN查询

Question

我想获取[interact]表的ID，但这些ID不能等于[EmailOUT]表。我无法写出查询。

Select ID from EmailOut   
where ID NOT IN   
    (select ID from 
    [172.28.101.120].[GenesysIS].dbo.interactions 
    where media_type = 'email' 
    and type = 'Outbound') 

与此类似的东西。我想在交互表中输出电子邮件，但这些电子邮件可能存在于EmailOut表中。我想删除它们。出站电子邮件数约为300，但这个查询结果应该小于300

Answer 1

看来你应该反向查询，如果你想获得[互动]表中的ID：

select ID from 
[172.28.101.120].[GenesysIS].dbo.interactions 
where media_type = 'email' 
and type = 'Outbound' 
AND ID NOT IN (SELECT ID FROM EmailOut) 

Answer 2

什么

select ID from [172.28.101.120].[GenesysIS].dbo.interactions 
where media_type = 'email' 
and type = 'Outbound' 
minus 
select ID from EmailOut 

Answer 3

尝试这一个 -

SELECT t2.* 
FROM [172.28.101.120].[GenesysIS].dbo.interactions t2 
WHERE t2.media_type = 'email' 
    AND t2.[type] = 'Outbound' 
    AND NOT EXISTS (
      SELECT 1 
      FROM dbo.EmailOut t 
      WHERE t.id = t2.id 
     )