[x] An overview of the different Spark SQL types can be found online
[x] This was a brief overview of the 2 (or 3) different Spark APIs. You can always find more information on the programming guides for RDDs and Dataframes/Datasets and in the Spark documentation.
The part
redirects to a non-existing page
Edit:
this is also the case for
which is down at the same page.