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zjcxc--个人微信公共号同名 2003-12-09
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
select 序号=IDENTITY(int, 1,1),* into #t from 表
select * from #t
zjcxc--个人微信公共号同名 2003-12-09
--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
select 序号=(select sum(1) from 表 where 主键<=a.主键)
,*
from 表 a
order by 主键
wcnh20 2003-12-09
select IDENTITY(int, 1,1) AS ID_Num,* into #temp from 表
select * from #temp
select * from #temp
dlpseeyou 2003-12-09
select id=identity(int,1,1) ,* into #ccc from 表名
select * from #ccc
select * from #ccc
pengdali 2003-12-09
select IDENTITY(int, 1,1) AS ID_Num,* into #temp from 表
select * from #temp
select * from #temp
victorycyz 2003-12-09
select identity(int,1,1) as id ,* into #t from table
select * from #t
drop table #t
select * from #t
drop table #t
txlicenhe 2003-12-09
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
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