thinQmaster Virtual testing partner Adaptive practice exams that find your weak spots and drill them. Every answer explained. From $69
Enroll

thinQmaster

Find your exam

Five questions free, before you decide.

Step 1 · choose a vendor

In one of our camps? Your practice exams come with the tuition — they are on your study page already.

Cloud Computing · Intermediate

AWS Database Migration Service (AWS DMS)

AWS service that migrates databases to AWS with minimal downtime using full load and ongoing change data capture.

Definition

AWS DMS replicates data between source and target databases, including homogeneous (Oracle to Oracle) and heterogeneous (Oracle to Aurora PostgreSQL) migrations. A replication instance or DMS Serverless performs the full load and then continuous replication; DMS Schema Conversion or the AWS Schema Conversion Tool converts schemas and code for heterogeneous moves.

Example

An on-premises SQL Server database is replicated to RDS with ongoing CDC until the cutover window.

Exam tip

Heterogeneous migrations need schema conversion (DMS Schema Conversion/SCT) plus DMS for data; homogeneous migrations need only DMS or native tools.

Related terms