0. Hive的语句执行顺序 from -> on -> join -> where -> group by -> having -> select -> distinct -> order -> limit Hive函数大致可以分为三类:UDF(用户自定义函数)、UDAF(用户自定义聚合函数)、UDTF...
---------------数据导入导出------------------------------ 创建表: CREATE TABLE IF NOT EXISTS userses(
name string,
sex string
)
row format delimited fields terminated by'\t'; CREATE TABLE IF NOT EXISTS user_tmp(
name string,
sex string
)
p...