DMS stands for Database Migration Service. This is an AWS service.
Supports migrations between the following databases: Oracle, PostgreSQL, Microsoft SQL Server, Amazon Redshift, Amazon Aurora, MariaDB, and MySQL
Supports migrations between the same databases (homogeneous) and different databases (heterogeneous)
Can be used to migrate between databases on Amazon EC2, Amazon RDS, Amazon Redshift, and on-premises
Can be used for both one-time and ongoing migrations