MySQL Full Join的实现
时间:2022-03-14 17:18
MySQL Full Join的实现 因为MySQL不支持FULL JOIN,下面是替代方法 left join + union(可去除重复数据)+ right join select * from A left join B on A.id = B.id (where 条件) union select *
from A right join B on A.id = B.id (where条件);
时间:2022-03-14 17:18
MySQL Full Join的实现 因为MySQL不支持FULL JOIN,下面是替代方法 left join + union(可去除重复数据)+ right join select * from A left join B on A.id = B.id (where 条件) union select *
from A right join B on A.id = B.id (where条件);