Downloading DB Data Generator MultiDB Edition 2.2.1 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. The default filename for the program's installer is ddg2_multidb.exe.
The software lies within Development Tools, more precisely Database Tools. This tool was originally designed by Datanamic. The following version: 4.0 is the most frequently downloaded one by the program users. We recommend checking the downloaded files with any free antivirus.
From the developer:
Data Generator MultiDB is a powerful data generator that allows developers to easily populate databases with thousands of rows of meaningful and syntactically correct test data for database testing purposes. An empty database is not useful for making sure your application will work as designed. You need test data. Writing your own test data generators or scripts is time consuming.
You may want to check out more software, such as dbForge Data Generator for SQL Server, dbForge Data Generator for MySQL or dbForge Data Generator for Oracle, which might be related to DB Data Generator MultiDB Edition.