You can perform a full backup or an incremental backup of Amazon DynamoDB tables.
Before You Begin
To perform an incremental backup on a DynamoDB table, you must enable streams on the table and set the stream type to either New image or New and old images. If you do not enable streams, or if the steam type is not New image or New and old images, then a full backup is performed.
For more information on enabling DynamoDB table streams, see the Amazon documentation, Enabling a Stream.
From the navigation pane, go to Protect > Databases.
The Instances page appears.
For the database instance that you want to back up, click the action button , and then click Back up.
The Backup dialog box appears.
Select the table group that you want to back up, and then click Select.
The Select backup level dialog box appears.
Under Backup level, select the type of backup that you want to perform, and then click OK.