1.语法

hive> load data [local] inpath '/opt/module/datas/student.txt' overwrite | into table student [partition (partcol1=val1,…)];

(1)load data:表示加载数据

(2)local:表示从本地加载数据到hive表;否则从HDFS加载数据到hive表

(3)inpath:表示加载数据的路径

(4)overwrite:表示覆盖表中已有数据,否则表示追加

(5)into table:表示加载到哪张表

(6)student:表示具体的表

(7)partition:表示上传到指定分区

load data local inpath '/opt/module/datas/student.txt' into table default.student;

2.导出

1 Insert导出

1.将查询的结果导出到本地

hive (default)> insert overwrite local directory '/opt/module/datas/export/student'

            select * from student;

2.将查询的结果格式化导出到本地

hive(default)>insert overwrite local directory '/opt/module/datas/export/student1'

           ROW FORMAT DELIMITED FIELDS TERMINATED BY '\t'             select * from student;

3.将查询的结果导出到HDFS上(没有local)

hive (default)> insert overwrite directory '/user/atguigu/student2'

             ROW FORMAT DELIMITED FIELDS TERMINATED BY '\t'

             select * from student;

2 Hadoop命令导出到本地

hive (default)> dfs -get /user/hive/warehouse/student/month=201709/000000_0

/opt/module/datas/export/student3.txt;

3 Hive Shell 命令导出

基本语法:(hive -f/-e 执行语句或者脚本 > file)

[atguigu@hadoop102 hive]$ bin/hive -e 'select * from default.student;' >

 /opt/module/datas/export/student4.txt;

4 Export导出到HDFS上

(defahiveult)> export table default.student to

 '/user/hive/warehouse/export/student';