建库建表、加载数据 :
建库建表:
—如果数据库已存在就删除 drop database if exists db_msg cascade ;
—创建数据库 create database db_msg ;
—切换数据库 use db_msg ;
—列举数据库 show databases ;
--如果表已存在就删除
drop table if exists db_msg.tb_msg_source ;
--建表
create table db_msg.tb_msg_source(
msg_time string comment "消息发送时间"
, sender_name string comment "发送人昵称"
, sender_account string comment "发送人账号"
, sender_sex string comment "发送人性别"
, sender_ip string comment "发送人ip地址"
, sender_os string comment "发送人操作系统"
, sender_phonetype string comment "发送人手机型号"
, sender_network string comment "发送人网络类型"
, sender_gps string comment "发送人的GPS定位"
, receiver_name string comment "接收人昵称"
, receiver_ip string comment "接收人IP"
, receiver_account string comment "接收人账号"
, receiver_os string comment "接收人操作系统"
, receiver_phonetype string comment "接收人手机型号"
, receiver_network string comment "接收人网络类型"
, receiver_gps string comment "接收人的GPS定位"
, receiver_sex string comment "接收人性别"
, msg_type string comment "消息类型"
, distance string comment "双方距离"
, message string comment "消息内容"
)
--指定分隔符为制表符
row format delimited fields terminated by '\t' ;
加载数据 :
(1)HDFS上创建目录hdfs dfs -mkdir -p /momo/data
(2)上传到HDFS hdfs dfs -put /export/data/data1.tsv /momo/data/
hdfs dfs -put /export/data/data2.tsv /momo/data/
(3) 加载到Hive表中 load data inpath '/momo/data/data1.tsv' into table db_msg.tb_msg_source;
load data inpath '/momo/data/data2.tsv' into table db_msg.tb_msg_source;
(4)验证结果 select msg_time,sender_name,sender_ip,sender_phonetype,receiver_name,receiver_network from tb_msg_source limit 10;