请问r和l哪个是左哪个是右

页面:/news/view-697642/ | 耗时:0.7969 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=697642 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=697642 LIMIT 0,1
select * from tbl_Articles_sphinx where id=697642 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1095888,1071867,1069221,1073698,1540021,1050437,1130294,1052287,1057447,1062424,1058958,1065107,1132191,1073413,1115233,992503,1071315,1064944,1115909,988905,1044735,1073528,1087237,1047637,1086122,1069027,1067901,1073832,1063735,1048220) ORDER BY field (ArticleID,1095888,1071867,1069221,1073698,1540021,1050437,1130294,1052287,1057447,1062424,1058958,1065107,1132191,1073413,1115233,992503,1071315,1064944,1115909,988905,1044735,1073528,1087237,1047637,1086122,1069027,1067901,1073832,1063735,1048220)