下面介紹一下hive 匯出的幾種方式

1. 本地檔案直接匯出

insert overwrite local directory '/data/hive/export/student_info' select * from default.student 

2. 修改分隔符和換行符

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 
 

3. shell 指令碼匯出

bin/hive -e "select * from default.student_info ;" > /data/hive/export/local/student_info

4. 匯出資料到檔案系統

insert overwrite directory '/data/hive/export/student_info' select * from default.student 

5. export 方法

    export table student_info partition (country="china") to "/data/hive/export/"

 

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