什么是对角矩阵

页面:/news/view-2468485/ | 耗时:0.4125 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=2468485 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2468485 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2468485 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1167412,1115245,998965,1119694,1422330,694538,964125,1406323,555786,411735,708406,1114802,551322,1106320,2946980,464736,1167357,1502006,1085040,1202229,1081937,583252,1117866,395559,1074400,1099461,1096367,830956,583084,2900003) ORDER BY field (ArticleID,1167412,1115245,998965,1119694,1422330,694538,964125,1406323,555786,411735,708406,1114802,551322,1106320,2946980,464736,1167357,1502006,1085040,1202229,1081937,583252,1117866,395559,1074400,1099461,1096367,830956,583084,2900003)