10-29-2013 03:08 PM
This might be helpful: Base SAS(R) 9.4 Procedures Guide
From what I've read, FEDSQL should be used if you need it, but not necessarily otherwise - it has some drawbacks compared to PROC SQL as it is much more ANSI compliant (for example, CREATE TABLE in FEDSQL is illegal if the table already exists, but legal in PROC SQL). The main reason you might need it is interfacing with multiple DBMSs other than SAS in a consistent language that supports some of the basic ANSI types like VARCHAR and such.
10-29-2013 04:30 PM
I would talk to your SAS sales rep for that sort of information. They should have specific information related to the products and uses you have.