Hive 简单操作

1建表：

建表语句形式1：
Create table table_name(col_name1 type ,col_name2 type,… )

row format DELIMITED FIELDS TERMINATED BY '\t'

location ‘/user/$username/warehouse/tables/table_name’

建表实例1：
create table hue_fengchao_test23(a int,b string)

row format DELIMITED FIELDS TERMINATED BY '\t'

location '/user/fengchao/warehouse/tables/hue_fengchao_test23'

建表语句形式2：
Create table table_namerow

format DELIMITED FIELDS TERMINATED BY '\t'

location ‘/user/$username/warehouse/tables/table_name’ as select_statement

建表实例2：
create table hue_fengchao_test24row

format DELIMITED FIELDS TERMINATED BY '\t'

location '/user/fengchao/warehouse/tables/hue_fengchao_test24' as select * from user_group