我有两张桌子
first table (people):id ,name;
second table (relation):id,parent_id,child_id
第二个表包含第一个表中对象之间的父链接。很简单))
通过这个查询,我得到了两个表中的所有字段
from People AS people , Relation as relation WHERE relation.parent_id=XXX AND people.id=relation.child_id
如何从第一张表中获取字段?
答案 0 :(得分:1)
select people from People AS people , Relation as relation WHERE relation.parent_id=XXX AND people.id=relation.child_id