In this demonstration, we present DB-MELIS (data-base migration environment for legacy information systems), an Eclipse plug-in for the migration of COBOL non decomposable data-intensive applications based on files to a modern relational database management system. The plug-in supports the software engineer to reengineer the original database and to modify the original legacy application to enable the communication with reengineered database. Automatically generated wrappers enable the communication between the legacy code and the reengineered database