如何在查询结果前增加一列序号？

[无尽空虚]

这个select怎么写？

[txlicenhe]

http://expert.csdn.net/Expert/topic/2437/2437014.xml?temp=.67857
交流]自增号

1: 自增列 类型为：int identity(1,1) 当然也可以是bigint,smallint
eg: create table tbName(id int identity(1,1),description varchar(20))
或在用企业管理器设计表字段时，将字段设为int,将标识设为是，其它用默认即可

2: 查询时加序号:
a:没有主键的情形：
Select identity(int,1,1) as iid,* into #tmp from TableName
Select * from #tmp
Drop table #tmp
b:有主键的情形：
Select (Select sum(1) from TableName where KeyField <= a.KeyField) as iid,* from TableName a

[victorycyz]

select identity(int,1,1) as id ,* into #t from table
select * from #t

drop table #t

[pengdali]

select IDENTITY(int, 1,1) AS ID_Num,* into #temp from 表
select * from #temp

[dlpseeyou]

select id=identity(int,1,1) ,* into #ccc from 表名
select * from #ccc

[wcnh20]

select IDENTITY(int, 1,1) AS ID_Num,* into #temp from 表
select * from #temp

[zjcxc]

--如果你的表中有主键,可以用:

select 序号=(select sum(1) from 表 where 主键<=a.主键)
,*
from 表 a
order by 主键

[zjcxc]

如果没有的话,就只能用临时表.

select 序号=IDENTITY(int, 1,1),* into #t from 表
select * from #t