标签:语句 dir one extern 数据导入 shel style 部分 int
hive (default)> create table student(id string, name string) row format delimited fields terminated by ‘\t‘;
hive (default)> load data local inpath ‘/opt/module/datas/student.txt‘ into table default.student;
hive (default)> dfs -put /opt/module/datas/student.txt /user/atguigu/hive;
hive (default)> load data inpath ‘/user/atguigu/hive/student.txt‘ into table default.student;
hive (default)> dfs -put /opt/module/datas/student.txt /user/atguigu/hive;
hive (default)> load data inpath ‘/user/atguigu/hive/student.txt‘ overwrite into table default.student;
hive (default)> create table student(id int, name string) partitioned by (month string) row format delimited fields terminated by ‘\t‘;
hive (default)> insert into table student partition(month=‘201709‘) values(1,‘wangwu‘),(2,’zhaoliu’);
hive (default)> insert overwrite table student partition(month=‘201708‘) select id, name from student where month=‘201709‘;
hive (default)> from student insert overwrite table student partition(month=‘201707‘) select id, name where month=‘201709‘ insert overwrite table student partition(month=‘201706‘) select id, name where month=‘201709‘;
create table if not exists student3 as select id, name from student;
hive (default)> dfs -mkdir /student; hive (default)> dfs -put /opt/module/datas/student.txt /student;
hive (default)> create external table if not exists student5( id int, name string ) row format delimited fields terminated by ‘\t‘ location ‘/student;
hive (default)> select * from student5;
hive (default)> import table student2 partition(month=‘201709‘) from ‘/user/hive/warehouse/export/student‘;
hive (default)> insert overwrite local directory ‘/opt/module/datas/export/student‘ select * from student;
hive(default)>insert overwrite local directory ‘/opt/module/datas/export/student1‘ ROW FORMAT DELIMITED FIELDS TERMINATED BY ‘\t‘ select * from student;
hive (default)> insert overwrite directory ‘/user/atguigu/student2‘ ROW FORMAT DELIMITED FIELDS TERMINATED BY ‘\t‘ select * from student;
hive (default)> dfs -get /user/hive/warehouse/student/month=201709/000000_0 /opt/module/datas/export/student3.txt;
[atguigu@hadoop102 hive]$ bin/hive -e ‘select * from default.student;‘ > /opt/module/datas/export/student4.txt;
(defahiveult)> export table default.student to ‘/user/hive/warehouse/export/student‘;
hive (default)> truncate table student;
标签:语句 dir one extern 数据导入 shel style 部分 int
原文地址:https://www.cnblogs.com/qiu-hua/p/13358336.html