什么是实验法它的优缺点是什么?

页面:/news/view-2055356/ | 耗时:0.2743 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=2055356 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2055356 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2055356 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(478794,585859,423905,637686,389067,609457,517118,1063918,1023407,1137218,801636,809878,1446182,372742,1071744,599685,1873759,565097,1044273,1043208,492807,774162,471135,607214,691277,939662,776257,2427543,427535,639464) ORDER BY field (ArticleID,478794,585859,423905,637686,389067,609457,517118,1063918,1023407,1137218,801636,809878,1446182,372742,1071744,599685,1873759,565097,1044273,1043208,492807,774162,471135,607214,691277,939662,776257,2427543,427535,639464)