From Oracle on premise to S3 using DMS

It is possible to filter tables as described in the following documentation.
Table mapping can be used to filter tables that need to be converted or migrated.
https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Tasks.CustomizingTasks.TableMapping.Console.html

Database migration should be done carefully and should be verified many times. (e.g., whether the necessary data has been securely migrated, whether it works, etc.)