(1)数据准备(/home/sopdm/test.dat):
1,wyp,25,13188888888
2,test,30,13899999999
3,zs,34,89931412
(2)首先创建表
use sopdm;
drop table if exists sopdm.wyp;
create table if not exists sopdm.wyp(id int,name string,age int,tel string)
row format delimited
fields terminated by ','
stored as textfile;
从本地文件系统中导入数据到Hive表
load datalocalinpath ‘/home/sopdm/test.dat’ into table sopdm.wyp;
从HDFS上导入数据到Hive表
load data inpath ‘/user/sopdm/input/test_hdfs.dat’ into table sopdm.wyp;
从别的Hive表中导入数据到Hive表中
create table if not exists sopdm.wyp2(id int,name string,tel string)
row format delimited
fields terminated by ','
stored as textfile;
--overwrite是覆盖,into是追加
insertintotable sopdm.wyp2
select id,name,tel from sopdm.wyp;
--多表插入
--高效方式-查询语句插入多个分区
from sopdm.wyp w
insert overwrite table sopdm.wyp2
select w.id,w.name,w.tel where w.age=25
insert overwrite table sopdm.wyp2
select w.id,w.name,w.tel where w.age=27;
4.创建Hive表的同时导入查询数据
create table sopdm.wyp3
asselect id,name,tel,age from sopdm.wyp where age=25;