Sqoop官方文档翻译2

8.

sqoop-import-all-tables

8.1. Purpose

import-all-tables命令导入一堆表格到HDFS,
每个表的数据存储在独立的HDFS目录里。

下列条件必须满足:
每个表必须有单列的主键
导入每个表的所有列
You must not intend to use non-default splitting column, nor impose any conditions via a WHERE clause.

8.2. Syntax

略

8.3. Example Invocations

从corp数据库里导入所有表格:
$ sqoop import-all-tables --connect jdbc:mysql://db.foo.com/corp

验证是否OK:
$ hadoop fs -ls
Found 4 items
drwxr-xr-x - someuser somegrp 0 2010-04-27 17:15 /user/someuser/EMPLOYEES
drwxr-xr-x - someuser somegrp 0 2010-04-27 17:15 /user/someuser/PAYCHECKS
drwxr-xr-x - someuser somegrp 0 2010-04-27 17:15 /user/someuser/DEPARTMENTS
drwxr-xr-x - someuser somegrp 0 2010-04-27 17:15 /user/someuser/OFFICE_SUPPLIES