自动生成编码的主键函数

比如

CRM00001

CRM00002

CRM00003

create table IntKey(KeyChar char(10))

go

create function GetKey()

returns char(10)

as

begin

declare @KeyValue int

declare @KeyReturn varchar(20)

set @KeyValue = cast(isnull((select max(KeyChar) from IntKey),0) as int) + 1

set @KeyReturn = '000000000 ' + ltrim(str(@KeyValue))

return right(@KeyReturn,10)

end

go

declare @i int

set @i = 0

while @i < 100

begin

insert into IntKey(KeyChar)

select dbo.GetKey()

set @i = @i + 1

end

select * from IntKey

go

drop function GetKey

drop table IntKey