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Title: GitHub - Joey-df/HiveSQL: HiveSQL知识点、HQL实战、HiveSQL练习题

Open Graph Title: GitHub - Joey-df/HiveSQL: HiveSQL知识点、HQL实战、HiveSQL练习题

X Title: GitHub - Joey-df/HiveSQL: HiveSQL知识点、HQL实战、HiveSQL练习题

Description: HiveSQL知识点、HQL实战、HiveSQL练习题. Contribute to Joey-df/HiveSQL development by creating an account on GitHub.

Open Graph Description: HiveSQL知识点、HQL实战、HiveSQL练习题. Contribute to Joey-df/HiveSQL development by creating an account on GitHub.

X Description: HiveSQL知识点、HQL实战、HiveSQL练习题. Contribute to Joey-df/HiveSQL development by creating an account on GitHub.

Opengraph URL: https://github.com/Joey-df/HiveSQL

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HiveSQL	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL
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data	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL/tree/master/data
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README.md	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL/blob/master/README.md
README	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#hivesql
HQL小练习	https://github.com/Dang-h/BigData/blob/master/Hive/Hive.md
一些设置	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E4%B8%80%E4%BA%9B%E8%AE%BE%E7%BD%AE
常用函数	https://github.com/Dang-h/Review/blob/master/hive_review/HiveSQL/%E5%B8%B8%E7%94%A8%E5%87%BD%E6%95%B0.md
Hive显示中文备注	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#Hive%E6%98%BE%E7%A4%BA%E4%B8%AD%E6%96%87%E5%A4%87%E6%B3%A8
Hive优化	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#Hive%E4%BC%98%E5%8C%96
设置reduce个数	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E8%AE%BE%E7%BD%AEreduce%E4%B8%AA%E6%95%B0
设置Map数	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E8%AE%BE%E7%BD%AEMap%E6%95%B0
合并小文件	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E5%90%88%E5%B9%B6%E5%B0%8F%E6%96%87%E4%BB%B6
压缩	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E5%8E%8B%E7%BC%A9
向量优化器	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E5%90%91%E9%87%8F%E4%BC%98%E5%8C%96%E5%99%A8
cbo优化器	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E4%BC%98%E5%8C%96%E5%99%A8
本地运行模式	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E6%9C%AC%E5%9C%B0%E8%BF%90%E8%A1%8C%E6%A8%A1%E5%BC%8F
并行执行	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E5%B9%B6%E8%A1%8C%E6%89%A7%E8%A1%8C
jvm重用	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E9%87%8D%E7%94%A8
map、reduce内存	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E5%86%85%E5%AD%98
推测执行	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E6%8E%A8%E6%B5%8B%E6%89%A7%E8%A1%8C
数据倾斜	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E6%95%B0%E6%8D%AE%E5%80%BE%E6%96%9C
查看一些信息	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E6%9F%A5%E7%9C%8B%E4%B8%80%E4%BA%9B%E4%BF%A1%E6%81%AF
DDL	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#DDL
DML	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#DML
查询小练习	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E6%9F%A5%E8%AF%A2%E5%B0%8F%E7%BB%83%E4%B9%A0
计算emp表每个部门的平均工资	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E8%AE%A1%E7%AE%97emp%E8%A1%A8%E6%AF%8F%E4%B8%AA%E9%83%A8%E9%97%A8%E7%9A%84%E5%B9%B3%E5%9D%87%E5%B7%A5%E8%B5%84
计算emp每个部门中每个岗位的最高薪水	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E8%AE%A1%E7%AE%97emp%E6%AF%8F%E4%B8%AA%E9%83%A8%E9%97%A8%E4%B8%AD%E6%AF%8F%E4%B8%AA%E5%B2%97%E4%BD%8D%E7%9A%84%E6%9C%80%E9%AB%98%E8%96%AA%E6%B0%B4
查看一个部门有哪些职位,及部门最高薪资	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E6%9F%A5%E7%9C%8B%E4%B8%80%E4%B8%AA%E9%83%A8%E9%97%A8%E6%9C%89%E5%93%AA%E4%BA%9B%E8%81%8C%E4%BD%8D,%E5%8F%8A%E9%83%A8%E9%97%A8%E6%9C%80%E9%AB%98%E8%96%AA%E8%B5%84
求每个部门的平均薪水大于2000的部门	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E6%B1%82%E6%AF%8F%E4%B8%AA%E9%83%A8%E9%97%A8%E7%9A%84%E5%B9%B3%E5%9D%87%E8%96%AA%E6%B0%B4%E5%A4%A7%E4%BA%8E2000%E7%9A%84%E9%83%A8%E9%97%A8
求出不同部门男女各多少人	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E6%B1%82%E5%87%BA%E4%B8%8D%E5%90%8C%E9%83%A8%E9%97%A8%E7%94%B7%E5%A5%B3%E5%90%84%E5%A4%9A%E5%B0%91%E4%BA%BA
把星座和血型一样的人归类到一起	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E6%8A%8A%E6%98%9F%E5%BA%A7%E5%92%8C%E8%A1%80%E5%9E%8B%E4%B8%80%E6%A0%B7%E7%9A%84%E4%BA%BA%E5%BD%92%E7%B1%BB%E5%88%B0%E4%B8%80%E8%B5%B7
分类合并	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E5%88%86%E7%B1%BB%E5%90%88%E5%B9%B6
查询在2017年4月份购买过的顾客及总人数	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E6%9F%A5%E8%AF%A2%E5%9C%A82017%E5%B9%B44%E6%9C%88%E4%BB%BD%E8%B4%AD%E4%B9%B0%E8%BF%87%E7%9A%84%E9%A1%BE%E5%AE%A2%E5%8F%8A%E6%80%BB%E4%BA%BA%E6%95%B0
查询顾客的购买明细及月购买总额	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E6%9F%A5%E8%AF%A2%E9%A1%BE%E5%AE%A2%E7%9A%84%E8%B4%AD%E4%B9%B0%E6%98%8E%E7%BB%86%E5%8F%8A%E6%9C%88%E8%B4%AD%E4%B9%B0%E6%80%BB%E9%A2%9D
上述的场景, 将每个顾客的cost按照日期进行累加	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E5%B0%86%E6%AF%8F%E4%B8%AA%E9%A1%BE%E5%AE%A2%E7%9A%84cost%E6%8C%89%E7%85%A7%E6%97%A5%E6%9C%9F%E8%BF%9B%E8%A1%8C%E7%B4%AF%E5%8A%A0
查询每个顾客上次的购买时间	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E6%9F%A5%E8%AF%A2%E6%AF%8F%E4%B8%AA%E9%A1%BE%E5%AE%A2%E4%B8%8A%E6%AC%A1%E7%9A%84%E8%B4%AD%E4%B9%B0%E6%97%B6%E9%97%B4
查询前20%时间的订单信息	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E6%9F%A5%E8%AF%A2%E5%89%8D20%%E6%97%B6%E9%97%B4%E7%9A%84%E8%AE%A2%E5%8D%95%E4%BF%A1%E6%81%AF
计算3日留存率	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E8%AE%A1%E7%AE%973%E6%97%A5%E7%95%99%E5%AD%98%E7%8E%87
join	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#join
内连接	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E5%86%85%E8%BF%9E%E6%8E%A5
左外连接	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E5%B7%A6%E5%A4%96%E8%BF%9E%E6%8E%A5
满外连接	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E6%BB%A1%E5%A4%96%E8%BF%9E%E6%8E%A5
排序	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E6%8E%92%E5%BA%8F
分桶及抽样查询	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E5%88%86%E6%A1%B6%E5%8F%8A%E6%8A%BD%E6%A0%B7%E6%9F%A5%E8%AF%A2
常用函数	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E5%B8%B8%E7%94%A8%E5%87%BD%E6%95%B0
窗口函数	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E7%AA%97%E5%8F%A3%E5%87%BD%E6%95%B0
解析json数组	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL/blob/master/src/main/java/udtf/ExplodeJsonArray.java
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#hql小知识
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#一些设置
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#hive显示中文备注
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#hive优化
Hive参数说明	https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#设置reduce个数
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#设置map数
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#合并小文件
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#压缩
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#向量优化器
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	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#本地运行模式
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#并行执行
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#重用
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#内存
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#推测执行
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#数据倾斜
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#查看一些信息
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#ddl
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#dml
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#查询小练习
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#计算emp表每个部门的平均工资
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#计算emp每个部门中每个岗位的最高薪水
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#查看一个部门有哪些职位及部门最高薪资
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#求每个部门的平均薪水大于2000的部门
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#join
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#内连接
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#左外连接
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#满外连接
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#排序
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#分区排序distribute-by
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#分桶及抽样查询
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#常用函数
常用函数使用	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL/blob/master/HiveSQL/%E5%B8%B8%E7%94%A8%E5%87%BD%E6%95%B0.md
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#求出不同部门男女各多少人
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#把星座和血型一样的人归类到一起
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#分类合并
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#窗口函数
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#窗口函数小练习
查询在2017年4月份购买过的顾客及总人数	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E6%9F%A5%E8%AF%A2%E5%9C%A82017%E5%B9%B44%E6%9C%88%E4%BB%BD%E8%B4%AD%E4%B9%B0%E8%BF%87%E7%9A%84%E9%A1%BE%E5%AE%A2%E5%8F%8A%E6%80%BB%E4%BA%BA%E6%95%B0
查询顾客的购买明细及月购买总额	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E6%9F%A5%E8%AF%A2%E9%A1%BE%E5%AE%A2%E7%9A%84%E8%B4%AD%E4%B9%B0%E6%98%8E%E7%BB%86%E5%8F%8A%E6%9C%88%E8%B4%AD%E4%B9%B0%E6%80%BB%E9%A2%9D
上述的场景, 将每个顾客的cost按照日期进行累加	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E5%B0%86%E6%AF%8F%E4%B8%AA%E9%A1%BE%E5%AE%A2%E7%9A%84cost%E6%8C%89%E7%85%A7%E6%97%A5%E6%9C%9F%E8%BF%9B%E8%A1%8C%E7%B4%AF%E5%8A%A0
查询每个顾客上次的购买时间	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E6%9F%A5%E8%AF%A2%E6%AF%8F%E4%B8%AA%E9%A1%BE%E5%AE%A2%E4%B8%8A%E6%AC%A1%E7%9A%84%E8%B4%AD%E4%B9%B0%E6%97%B6%E9%97%B4
查询前20%时间的订单信息	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#%E6%9F%A5%E8%AF%A2%E5%89%8D20%%E6%97%B6%E9%97%B4%E7%9A%84%E8%AE%A2%E5%8D%95%E4%BF%A1%E6%81%AF
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#查询在2017年4月份购买过的顾客及总人数
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#查询顾客的购买明细及月购买总额
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#将每个顾客的cost按照日期进行累加
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#查询每个顾客上次的购买时间
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#查询前20时间的订单信息
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#计算3日留存率
	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#7天连续3天活跃
Readme	https://patch-diff.githubusercontent.com/Joey-df/HiveSQL#readme-ov-file
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