SAS University Edition is a great place to learn about SAS. However, it does not have the capability to analyze big data. SAS 9.4, the commercial version of SAS, has that ability.
But how much will SAS University Edition handle? Using data sets I made for testing purposes, the largest data set I could use was about 2 GB. That is drastically more than some researchers use but a lot less than others. It can read in a text file of almost 6 GB but if you need to do any sorting you will need to use a lot less than 6 GB.
Take SAS University Edition for what it’s intended to be: A starting place.
The YouTube video is https://youtu.be/N8hMvS7dpDI.