title: Is it possible to update data already written in S3?
body: <p>thanks for looking into my question. I appreciate it.</p>
  <p>So I am a total newbie in this field... and yet I am considering to replace currently-using Hadoop with S3, but before that, I wanna know if it is possible to UPDATE data already written in S3.</p>
  <p>Hadoop as HDFS, you only write once, read many times, which does not allow me to UPDATE the data already written on it. I have a RDB that I thought of integrating into Hadoop, but failed to since this RDB has needs to be updated in timely manner.
  I heard S3, you can employ Athena or other middlewares that may allow me to UPDATE, which may be able to solve the issue I mentioned previously with Hadoop.</p>
  <p>Thank you so much for reading through, and would really appreciate if you can share your knowledge. Thanks :)</p>