1, hive创建hbase外表
CREATE EXTERNAL TABLE 表名
(
rowkey string,
name string
) STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler' WITH
SERDEPROPERTIES ("hbase.columns.mapping"=
":key,
f:name
") TBLPROPERTIES ("hbase.table.name" = "hbase表");
２, 创建分区表：插入数据( 动态分区，手动分区)
create table users(
id int,
user_id int,
user_name string
);
create table product(
id int,
product_id int,
product_name string,
price double
);
create table orders (
id int,
user_id int,
product_id int,
product_count int
) partitioned by (year string,month string,day string);
--------------指定分区：插入数据
insert into users values
(1,1,'a'),
(2,2,'b'),
(3,3,'c');
insert into product values
(1,1,'iphone6',9000),
(2,2,'<>',23.2),
(3,3,'lenovo-pc',5623.4);
insert into orders partition(year='2019',month='03',day='02') values
(1,1,1,2),
(2,1,3,1),
(3,2,2,3);
insert into orders partition(year='2019',month='03',day='03') values
(null,1,2,1),
(null,2,1,4);
------------动态分区：插入数据：
create table orders_t1 (
id int,
user_id int,
product_id int,
product_count int,
time string
) ;
insert into orders_t1 values
(1,1,1,2,'2011-12-02 12:03:32'),
(2,1,3,1,'2014-12-05 16:06:32'),
(3,2,2,3,'2016-10-02 18:03:32');
set hive.exec.dynamic.partition.mode=nonstrict;
create table orders2 like orders;
insert into orders2 partition(year,month,day)
select id,user_id,product_id,product_count,year(time),month(time),day(time) from orders_t1;
--====================查询语句
--解决错误：Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask (state=08S01,code=1)
SET hive.exec.mode.local.auto=true;
SET hive.auto.convert.join=false;
SET mapreduce.map.memory.mb = 26384;
SET mapreduce.map.java.opts='-Djava.net.preferIPv4Stack=true -Xmx23107M';
SET mapreduce.reduce.memory.mb = 26384;
SET mapreduce.reduce.java.opts='-Djava.net.preferIPv4Stack=true -Xmx23107M';
set hive.support.concurrency = false;
select user_name, product_name, product_count
from orders
left join product on product.product_id=orders.product_id
left join users on users.user_id=orders.user_id
