求助:sql2000语句
select DATEDIFF(day,a1,b1) as TS,a1,a2,a3,b1,b2...from aleft join b...left join c...说明:上面TS是由a表和b表中日期型的两个字段做比较的,我现在希望把DATEDIFF(day,a1,b1) as TS大于3的记录条数占所有记录总数的比例也统计显示出来,我该怎么办?在sql2000查询分析器中,谢谢了!急啊![@more@]