面试问题要了解什么问题

页面:/news/view-3456678/ | 耗时:0.4399 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=3456678 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3456678 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3456678 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1115985,1122543,1103101,1111874,1065669,1125009,1116363,1124239,1105405,1125947,1105962,1107725,1091288,1045214,1121256,1115945,1120735,1120334,1119017,1103845,1109619,1113844,1089261,1119696,1116549,1125199,1125191,1120683,1122374,1121960) ORDER BY field (ArticleID,1115985,1122543,1103101,1111874,1065669,1125009,1116363,1124239,1105405,1125947,1105962,1107725,1091288,1045214,1121256,1115945,1120735,1120334,1119017,1103845,1109619,1113844,1089261,1119696,1116549,1125199,1125191,1120683,1122374,1121960)