Can not modify more than one base table through a join view因为不能在一张由多张关联表连接而成的视图上做同时修改两张表的操作；那么哪些操作可以在视图上进行呢

DescriptionAbstract Communication Mastership (ACM) is a software company that develops a unique social networkcalled tW

题目链接：https:icpcarchive.ecs.baylor.eduindex.php?optioncom_onlinejudge&Itemid8&pageshow_problem&

Join the Conversationpdf 解决方案：最长公共升子序列的模型，此题的最大问题就是名字的获取问题，没发现名字中间可能有，一直