网络为什么要进行分层

页面:/news/view-1722706/ | 耗时:0.0305 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=1722706 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1722706 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1722706 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1090949,3309510,1112032,329020,239936,276596,1083000,141177,351472,111710,1083618,1129801,327865,1319562,1276118,295590,245840,108722,245596,143352,1100623,287568,169599,189914,269138,1069639,1303489,3321937,259243,2165356) ORDER BY field (ArticleID,1090949,3309510,1112032,329020,239936,276596,1083000,141177,351472,111710,1083618,1129801,327865,1319562,1276118,295590,245840,108722,245596,143352,1100623,287568,169599,189914,269138,1069639,1303489,3321937,259243,2165356)