sql 表有没有自增列，插入自增列值

创建一个表

create table demoTb

(

	ID int identity(1,1) primary key,

	name varchar(30)

) 

　　查看有没有自增列  有就返回YES

IF ((SELECT OBJECTPROPERTY( OBJECT_ID(N'demoTb'), 'TableHasIdentity')) = 1)

    PRINT 'Yes'

ELSE

    PRINT 'No'

　　如果想插入自增列的值就

declare @tableName varchar(250)

declare @sql nvarchar(1000)

select @tableName = 'demoTb'

select @sql ='SET IDENTITY_INSERT  '+@tableName+' ON' +char(13)+'insert into demoTb(id,name) values(2,''wu'')'

print @sql

exec sp_executesql  @sql

insert into demoTb(id,name) values(1,'wu')

select  * from demoTb