当前，许多商业DBMS中所用的主要数据模型是（57乂_ «»

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='29737' and id < 2415779 and id<>'2415779' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29737' and id > 2415779 and id<>'2415779' order by id asc limit 5