我想实现是自动生成一个加Data时间为编号的列，然后把后边的字段插到表里，大家给看下这个过程有什么问题， 我这边显示的错误是说什么varchar转int是错误！
CREATE PROCEDURE insertTest
@name varchar(20),
@regist varchar(10),
@age int,
@password varchar(20),
@weiyibiaoshi varchar(50)=''
OUTPUT
AS
begin
declare
@num int,
@strNum varchar(6),
@Y varchar(4),
@M varchar(3),
@D varchar(3),
@YMD varchar(8),
@Date smalldatetime
set @Date=getdate()
set @Y=Cast(Year(@Date) as varchar(4))
set @Y=right(@Y,4)
set @M=cast(month(@Date) as varchar(3))
set @M='0'+@M
set @M=right(@M,2)
set @D=cast(day(@Date) as varchar(3))
set @D='0'+@D
set @D=right(@D,2)
set @YMD=@Y+@M+@D
begin transaction
set @num=cast(right(@regist,4) as int)
set @regist=SUBSTRING(@regist,1,8)
if @YMD=@regist
begin
set @num=@num+1
set @strNum=cast(@num as varchar(4))
set @strNum='000'+@strNum
set @strNum=right(@strNum,4)
set @weiyibiaoshi=@YMD+@strNum+''
end
else
begin
set @weiyibiaoshi=@YMD+'0001'
end
insert into test(regist_id,weiyibiaoshi,names,age,passwords) VALUES(@regist,@weiyibiaoshi,@name,@age,@password);
if @@error <> 0
begin
rollback transaction
return 0
end
else
begin
commit transaction
end
end
GO
{call insertTest('google','3','admin')}
有一张test表 字段为：regist_id vachar,主键,weiyibiaoshi varchar,names varchar,age int,passwords varchar