封层的作用是什么

页面:/news/view-3542976/ | 耗时:0.2823 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=3542976 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3542976 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3542976 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(3542714,3541439,3527039,3540966,3542055,1096629,3534217,3541382,3540839,3531268,3541760,3540779,3527542,3541844,3540682,3541646,3530523,1046476,3541028,1077555,3532531,3541861,3542379,1058547,3540751,1054802,3541293,3540778,3542114,3541800) ORDER BY field (ArticleID,3542714,3541439,3527039,3540966,3542055,1096629,3534217,3541382,3540839,3531268,3541760,3540779,3527542,3541844,3540682,3541646,3530523,1046476,3541028,1077555,3532531,3541861,3542379,1058547,3540751,1054802,3541293,3540778,3542114,3541800)