(2017 •联考）下列哪一选项描述的是竞争关系？

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='29348' and id < 2389756 and id<>'2389756' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29348' and id > 2389756 and id<>'2389756' order by id asc limit 5