每天一点dw知识sqoop是什么？
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概念：
sqoop
我的问题
具体是怎么执行的？难道是定时调用命令行执行吗？
sqoop增量和全量
全量比较容易理解，增量怎么搞呢？
Apache Sqoop™ is a tool designed for efficiently transferring bulk data between Apache Hadoop and structured datastores such as relational databases.
我觉得这个应该读一遍
https://sqoop.apache.org/docs/1.4.7/SqoopUserGuide.html#_introduction
视频可以看看这个
https://www.bilibili.com/video/BV1jb411A7tc
Sqoop is a tool designed to transfer data between Hadoop and relational databases or mainframes. You can use Sqoop to import data from a relational database management system (RDBMS) such as mysql or Oracle or a mainframe into the Hadoop Distributed File System (HDFS), transform the data in Hadoop MapReduce, and then export the data back into an RDBMS.
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