Whenever one has to move large amounts of data from one database to another, storage space might become an issue. An option to circumvent this problem is to use a database link with Oracle Datapump to move the data from one database to another. This way, the data is exported across the network and imported directly into the target database.
In this post, I will provide an example on how to move data via a Oracle Datapump and a database link. This post is based on the excellent entry in Oracle FAQ and basically comments all the steps mentioned in the article.