aIn a word, a good dormitory relationship equals a good personal relationship. So we should try our best to establish a harmonious dormitory life for the sake of good personal relationship and wonderful life... 在词,一个好宿舍关系合计一个好私人关系。 如此我们应该设法我们最佳为好私人关系和美妙...
aMany people around me have personalities much like mine – on public occasions we won’t say a word, but we can hardly stop talking in private. Put another way, we will say anything to people we can trust, and nothing to those we can’t. At first I thought this was because we had...
分区主要是通过在集合中进行分组操作,再对集合添加分区列来实现的,在子查询的解决方案中,通过在子查询内部添加相关性,并匹配内部表和外部表的分区列来实现分区。 这里介绍一种基于临时表的分区解决方案:可以在临时表中创建一个自增长的序列,按照分区的要求将数据插入临时表,需要借助嵌套查询解决问题。