declare @s varchar(6),@i numeric(10,0)
set @i=1
while 1=1
begin
set @s=left (newid(),6)
if not exists(select 1 from Oder_Table where code=@s)
begin
insert Code (code) values(@s)
set @i=@i+1
if @i>1000000
break
end
else
continue
end
一条语句实现不了啊
得多条才能实现