建表语句
create table user_tag_merge ( uid int, gender String, agegroup String, favor String ) row format delimited fields terminated by '\t'
导入数据
insert into user_tag_merge values(1,'M','90后','sm'); insert into user_tag_merge values(2,'M','70后','sj'); insert into user_tag_merge values(3,'M','90后','ms'); insert into user_tag_merge values(4,'F','80后','sj'); insert into user_tag_merge values(5,'F','90后','ms');
先看需求：
原表数据格式为
需要将其转化格式为
直接上Hql
Original: https://www.cnblogs.com/CYan521/p/16798370.html
Author: 再美不及姑娘你
Title: Hive中Hql关于行转列及列转行的综合应用
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