检查，如果在表格中的主记录日期晚于最新记录加入表B中

Question

我有一个主表人

人领域日期：身份证，AlterationDate

而且动作表行动在一对多联动

行动领域：ID，的peopleid，CreationDate

我想查找人的所有记录，其修改日期晚于最近的创建日期动作加入人员ID。

MySQL是方言，日期是DateTime字段。

Answer 1

select people.* from people 
join actions on actions.peopleID = people.id 
group by people.id 
having max(action.CreationDate) < people.AlterationDate 

Answer 2

尝试

select p.peopleid 
from actions a 
inner join people p on p.peopleid = a.peopleid 
group by p.peopleid 
having max (a.creationdate) < p.alterationdate