设有关系R、S、T如下所示，则(59) 0关系R   关系S    关系T

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='29741' and id < 2415435 and id<>'2415435' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29741' and id > 2415435 and id<>'2415435' order by id asc limit 5