hive 教程基础 HQL
hive 教程基础 HQL
这一部分在sql的基础上介绍简单的HQL教程（HIVE SQL）
hive可以简单理解为在Hadoop的基础上定义一个sql接口，使得可以使用sql来使用hadoop，系统会自动将sql转化为mapreduce
但是HQL与MySQL也有所区区别 hive.hql 文件包含hql的简单语法， hive教程.hql 主要选自 lxw的大数据的田地 hive部分， http://lxw1234.com/archives/category/hive
但是由于公司已有相关的环境，不需要搭建，主要还是数据的选择介绍
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