问题描述

SQL语句查询问题,求高手指教，急急急

有两个表
b1：
name id
zhangsan 111

b2: username no
lisi 222

一条查询语句，需要查询出的结果是：
mc bm
zhangsan 111
lisi 222

解决方案

select b1.name as mc, b1.id as bm, b2.username as mc, b2.no as bm
from b1,b2

解决方案二：

if object_id('Tempdb..#msglist') is not null
drop table #msglist
create table #msglist([mc] nvarchar(20),[bm] nvarchar(20))
insert into #msglist ([mc],[bm]) select [name],[id] from b1
insert into #msglist ([mc],[bm]) select [username],[no] from b2
select * from #msglist