网站信息统计的简单实现过程

作者：pcsky


SQL语句如下：

SELECT DD.SumHits, AA.CountArt, CC.WeekUpdate, BB.RegUserNum
FROM
(SELECT COUNT(newsid) AS CountArt FROM article) AA,
(SELECT COUNT(id) AS RegUserNum FROM Admin) BB,
(SELECT COUNT(newsid) AS WeekUpdate FROM(article) WHERE DateDiff('ww', DateAndTime, Now()) >= 7) CC,
(SELECT SUM(hits) AS SumHits FROM Article) DD

运行环境：
VS.Net 2003
用OleDbConnection控件

其中用到了子表，因为分开来写不太方便