什么是语法?如何理解语法?

页面:/news/view-588676/ | 耗时:0.4687 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=588676 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=588676 LIMIT 0,1
select * from tbl_Articles_sphinx where id=588676 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(592976,3099457,2509842,2917267,507050,929263,762745,3464723,3412969,1125711,568534,1177451,1079146,1431547,446423,3230411,1141277,2409569,605696,530775,3521712,563308,1018370,692639,3471251,438580,1217079,2851664,374533,453169) ORDER BY field (ArticleID,592976,3099457,2509842,2917267,507050,929263,762745,3464723,3412969,1125711,568534,1177451,1079146,1431547,446423,3230411,1141277,2409569,605696,530775,3521712,563308,1018370,692639,3471251,438580,1217079,2851664,374533,453169)