简介
left join
select a.id, a.name, b.content from
person as a
left join task as b
on b.person_id = a.id
order by a.id;
找到每个人的任务
Hope is a good thing,maybe the best of things,and no good thing ever dies.----------- Andy Dufresne
left join
select a.id, a.name, b.content from
person as a
left join task as b
on b.person_id = a.id
order by a.id;