应该用:
select * from a,b where a.tel = b.tel
或
select * from a inner join b on a.tel = b.tel
或
select * from b inner join b on b.tel = a.tel
select a.* from A a left join B b on a.id = b.aid where a.edittime>=b.protime or b.aid is null欢迎分享,转载请注明来源:内存溢出
评论列表(0条)