下面介绍一下hive 导出的几种方式
- 本地文件直接导出
insert overwrite local directory '/data/hive/export/student_info' select * from default.student
- 修改分隔符和换行符
insert overwrite local directory '/data/hive/export/student_info'
ROW FORMAT DELIMITED FIELDS TERMINATED BY '\t' COLLECTION ITEMS TERMINATED BY '\n'
select * from default.student
- shell 脚本导出
bin/hive -e "select * from default.student_info ;" > /data/hive/export/local/student_info
- 导出数据到文件系统
insert overwrite directory '/data/hive/export/student_info' select * from default.student
- export 方法
export table student_info partition (country="china") to "/data/hive/export/"
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