Example of loading into RDS from S3 using SQL*Loader
I thought of two ideas how you could (at least theoretically) access the data if you are on Linux. 


mount S3 bucket using some kind of S3 FUSE. E.g. first hit on Google https://code.google.com/p/s3fs/wiki/FuseOverAmazon
create named pipe: mkfifo oraclepipe then configure SQL*Loader to read from the pipe probably using conventional path. And feed S3 file to the pipe: wget -O oraclepipe http://s3.com/hash.


We were using the second method on 9i to compress export online. And I do not recall problems with this approach. We ran two sessions from the shell script:

    gzip &lt; oraclepipe &gt; database.exp.gz &amp;
    exp "username/passwd" FULL=y BUFFER=2048000 FILE=oraclepipe