Hive、Hbase配合使用

1 、先在hive上创建hbase能识别的表
CREATE TABLE hbase_scores(key string, grade string,math string,art string) 
STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler' 
WITH SERDEPROPERTIES ("hbase.columns.mapping" = ":key,grade:grade,course:math,course:art") 
TBLPROPERTIES ("hbase.table.name" = "hbase_scores");

2、创建hive表，并导入数据
CREATE TABLE scores(key string, grade string,math string,art string) 
row format delimited fields terminated by '\t';

3、把hive表导入hbase能识别的表，就可以在hive和hbase中查询了和使用了。
INSERT OVERWRITE TABLE hbase_scores SELECT * FROM scores;


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hbase表只有列族，没有列的，对应关系应该怎么写？
CREATE TABLE hbase_scores1(key string, grade string) 
STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler' 
WITH SERDEPROPERTIES ("hbase.columns.mapping" = ":key,grade:,course:math,course:art") 
TBLPROPERTIES ("hbase.table.name" = "hbase_scoresjin");


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hbase上已经存在表，在hive上创建外部表
CREATE EXTERNAL  TABLE scores_h(key string,math string,art string) 
STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler' 
WITH SERDEPROPERTIES ("hbase.columns.mapping" = ":key,course:math,course:art") 
TBLPROPERTIES ("hbase.table.name" = "scores");
hive关联hbase的外部表无法用load导入数据。