hive 导入csv文件

创建hive表：

create table table_name(
id string,
name string,
age string
)
row format serde
'org.apache.hadoop.hive.serde2.OpenCSVSerde'
with
SERDEPROPERTIES
("separatorChar"=",","quotechar"="\"")
STORED AS TEXTFILE;

导入数据：

load data local inpath '/home/kyang/table_name.csv' overwrite into table table_name;

将表转换成ORC表：

create table table_name_orc(
id string,
name string,
age string
)row format delimited fields terminated by "\t" STORED AS ORC

insert overwrite table table_name_orc select * from table_name