Database Migration is the process of transferring data from one database to another. This can involve moving data between different database management systems, upgrading to a newer version of the same system, or migrating data to a cloud-based database. It's a complex undertaking that requires careful planning and execution to ensure data integrity, minimize downtime, and avoid data loss. Key considerations include assessing data compatibility, choosing an appropriate migration strategy (such as "big bang" or "trickle" migration), thoroughly testing the migrated data, and implementing robust backup and recovery procedures. Ultimately, successful database migration is crucial for organizations seeking to modernize their infrastructure, improve performance, or achieve greater scalability.