插座n和l代表什么意思

页面:/news/view-2969321/ | 耗时:0.3674 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=2969321 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2969321 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2969321 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1129377,1125202,1123384,1104228,1086346,1087936,1133133,1082059,1108081,1120153,1116711,1122432,1120976,1131861,1120169,1123747,1108978,1104665,1117309,1111412,1078146,1049116,1133405,1106198,1115635,1078196,1109997,1081767,1009092,1119107) ORDER BY field (ArticleID,1129377,1125202,1123384,1104228,1086346,1087936,1133133,1082059,1108081,1120153,1116711,1122432,1120976,1131861,1120169,1123747,1108978,1104665,1117309,1111412,1078146,1049116,1133405,1106198,1115635,1078196,1109997,1081767,1009092,1119107)