OrientDB Teleporter is a tool that synchronizes a RDBMS to an OrientDB database. You can use Teleporter to:

• Import your existing RDBMS to OrientDB.
• Keep your OrientDB database synchronized with changes from the RDBMS. In this case the database on your RDBMS remains the primary and the database on OrientDB a synchronized copy. Synchronization is one way, so all the changes in OrientDB database will not be propagated to the RDBMS.

You can execute Teleporter via OrientDB Studio as described here: https://github.com/orientechnologies/orientdb-labs/blob/master/Studio-Teleporter.md

or just run the tool through the script as described in the documentation: https://github.com/orientechnologies/orientdb-labs/blob/master/Teleporter-Index.md.