How do I migrate a Microsoft Access database to an Oracle database?
Before you can migrate a Microsoft Access database to an Oracle database, you must first export the MDB file to an XML file. Use the Oracle Migration Workbench Exporter for Microsoft Access to do this. This is located in the %ORACLE_HOME%\omwb\msaccess_exporter directory. The Oracle Migration Workbench Exporter extracts the schematic information from the MDB file and stores it in the XML file. The Migration Workbench then uses this XML file to capture the Microsoft Access database within the Capture Wizard. If the source Microsoft Access database uses linked tables, the schematic information for the attached MDB files are also automatically stored in the XML file. You can export and capture only one Microsoft Access database at a time.