Add newline in vim

I am often analyzing SQL queries from Informatica session log and they are wrapped around and difficult to read. That's when I needed to look for a way to insert a newline after every comma.
Great documentation and examples here.

http://vim.wikia.com/wiki/Add_a_newline_after_given_patterns

select wall_of_text,block_of_text,cube_of_text from textbook;

Add a newline after comma: s/,/\r&/g

select wall_of_text
,block_of_text
,cube_of_text from textbook

 Though brackets let you specify multiple values that you can replace (the vim wiki has an example), I was not able to figure out how to get a newline after every comma and "from". Drop in a comment if you know how to.