SQL 分页 语句

declare @d1 datetime set @d1=getdate()

select top        100 * 
from [sd_qyxx] 
where 
qydm not in (select top      49900 [qydm] from [sd_qyxx] order by [qydm] asc)
order by [qydm] asc

select [语句执行花费时间(毫秒)]=datediff(ms,@d1,getdate())