什么叫表达作用

页面:/news/view-1171924/ | 耗时:0.1239 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=1171924 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1171924 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1171924 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1982680,557052,718497,365808,360873,1094112,86933,1110694,879487,578598,572692,1225024,3362461,3192170,514073,1111356,1089239,1116159,881868,364060,2634157,1076387,1200855,100493,1158819,2487143,491810,1121988,1112981,2127968) ORDER BY field (ArticleID,1982680,557052,718497,365808,360873,1094112,86933,1110694,879487,578598,572692,1225024,3362461,3192170,514073,1111356,1089239,1116159,881868,364060,2634157,1076387,1200855,100493,1158819,2487143,491810,1121988,1112981,2127968)