A generic database migration tool to MySQL and MariaDB is the MySQL Workbench.
An alternative is the old MySQL Migration Tool Kit.
Recommended by MariaDB Foundation: Sqlines.
Adabas D to MariaDB migration
Project migrating an Adabas D database to MariaDB is in progress. More information are expected before end of 2015.
Oracle to MySQL or MariaDB migration
Data Migration Tools
- MyOraDump is a tool to export data from an Oracle database to MySQL or MariaDB. …