关于SQL语句，求救
declare @i int
set @i=0
while @i <(select count(speak_id) from web..bbs_content)
begin

insert into FORUM_DOC(FR_NO,FR_ID,usr) SELECT TOP 10 A.SPEAK_ID,A.BBSMOD_ID,A.SPEAKER_ID From web..bbs_content AS A where A.speak_id not in
(SELECT TOP @i B.speak_id FROM web..bbs_content AS B ORDER BY B.speak_id)

set @i=@i+1
end

这个时候(SELECT TOP @i B.speak_id FROM web..bbs_content AS B ORDER BY B.speak_id)
里的变量@i找不到了，为什么呢？

[解决办法]
什么问题没看清除，但用这个应该可以解决问题

原SQL语句改成：
exec ( 'insert into FORUM_DOC(FR_NO,FR_ID,usr) SELECT TOP 10 A.SPEAK_ID,A.BBSMOD_ID,A.SPEAKER_ID From web..bbs_content AS A where A.speak_id not in
(SELECT TOP '+@i+ ' B.speak_id FROM web..bbs_content AS B ORDER BY B.speak_id) ')