Jecky的博客

HQL训练进阶（一）说明 HQL是数据清洗必备技能，分三个模块进阶学习 一、建表 create table student(s_id string,s_name string,s_birth string,s_sex string) row format delimited fields terminated by ' '; create table course(c_id string,c_name string,t_id string) row format delimited fields te.