MySQL选择AND语句

Question

我有一个像这样的MySQL数据库：

Id | Name
1  | term1
1  | term2
1  | term3
2  | term4
2  | term5
2  | term6

我想选择包含term1 AND term3的ID。

或者，例如，term4 AND term5 AND term6。

我该怎么做？ 非常感谢任何帮助，谢谢。

Answer 1

要获取必须具有作为参数提供的名称的ID，您可以使用以下查询使用某些聚合来满足条件

对于term1＆amp; TERM3

select Id
from demo
where Name in ('term1', 'term3')
group by Id
having count(*) = sum(Name in ('term1', 'term3'));

对于term4＆amp; term5＆amp; term6

select Id
from demo
where Name in ('term4', 'term5','term6')
group by Id
having count(*) = sum(Name in ('term4', 'term5','term6'));

Demo

Answer 2

以下查询会为您提供所有Id，其中Name是'term1'

SELECT Id from table where Name in ('term1');

获取具有term1或term3

的Id

SELECT Id from table where Name in ('term1', 'term3');

Answer 3

 SELECT Id, Count(Distinct Name)
 FROM Table
 WHERE Name in ('term1','term3')
 Group By Id 
 HAVING Count(Distinct Name) > 1

我认为这就是你想要的。如果您想要3个术语，请更改“有...”＆gt; 2