Homogeneous and heterogeneous migrations
Once you have determined that DynamoDB is a suitable migration target (with final confirmation possibly coming after a POC), the next step is to outline the migration process. Generally, database migrations are classified as either homogeneous or heterogeneous, depending on the source and destination technologies.
Homogeneous migrations involve moving between databases of the same technology. For example, migrating from a self-managed on-premises PostgreSQL database to a fully managed Amazon RDS for PostgreSQL is a homogeneous migration. Although the database technologies are the same, other aspects like management and scalability may differ.
Heterogeneous migrations, in contrast, involve moving between databases of different technologies. For example, modernizing from Amazon RDS for SQL Server to DynamoDB is a heterogeneous migration. This type of migration requires addressing differences in data models, query languages, and other fundamental...
