Are Oracle databases supported through the dataset "RDS" connection?

I’m trying to create a Dataset from my RDS Oracle 19c database. However, it’s not available in the “Choose an instance ID” drop-down. My other databases (MySQL, SQL Server) are available.

All databases are in the same VPC. I didn’t have to make any changes for the MySQL and SQL Server databases to be visible. In addition, I have followed these instructions Manually enabling access to an Amazon RDS instance in a VPC.

Any idea why the Oracle database is not visible?

Thanks.

Did you try the Oracle Datasource?

Is there a documentation about this solution? Can we rely on that this is the way to connect RDS for Oracle?