hive
https://baike.baidu.com/item/hive/67986?fr=aladdin
hadoop
https://baike.baidu.com/item/Hadoop/3526507?fr=aladdin
http://baijiahao.baidu.com/s?id=1600544193947570476&wfr=spider&for=pc
jupiter
https://www.jianshu.com/p/a3f6571ce7cc
xml
https://blog.csdn.net/qsbbl/article/details/78628472
html
http- get/post 去收藏中查看
sql:select distinct 列名 from 表名,使用distinct 关键字去除重复值
GitHub入门基础使用 https://baijiahao.baidu.com/s?id=1608871531156986161&wfr=spider&for=pc