我执行下面这段语句时,老是出错:
declare @i int,@counter int,@id int
set @i=1
set @counter=4
while @i<=@counter
begin
select @id=@i
@i=@i+1
end
应该是:
declare @i int,@counter int,@id int
set @i=1
set @counter=4
while @i<=@counter
begin
select @id=@i,
@i=@i+1
end