Which AWS service simplifies the database migration process to AWS?

AWS Database Migration Service (DMS) is specifically designed to facilitate the migration of databases to AWS. It supports various source database engines and allows users to migrate their data seamlessly with minimal downtime. DMS can handle the complexities involved in a database migration, such as schema conversion and data transformation, making it straightforward for users to move their on-premises databases or other database environments into AWS services.

The service allows for continuous data replication, which means that source databases can remain operational during the migration process. This capability significantly reduces the risk of data loss and system downtime.

Other services mentioned, such as AWS Snowball, AWS Glue, and AWS Data Pipeline, serve different purposes. For instance, Snowball is designed for transferring large amounts of data into and out of AWS quickly and securely, while Glue is primarily an ETL (Extract, Transform, Load) service for data preparation and integration. Data Pipeline offers a way to process and move data between AWS services but is not specifically aimed at migrating databases. Thus, while these services have their functions, they do not simplify the database migration process in the same targeted manner as AWS DMS.