In my mind, SQL along with PROC SORT, falls into the category of "SAS programming" more than reporting. Even though I know some folks use SQL for reporting -- I'm more a practitioner of PROC REPORT, PROC TABULATE and DATA step for reporting.
For general SAS programming questions, the SAS on-line documentation is a great place to start. The SAS sample programs are really very good. If you are using SAS Display Manager for your programming, there is a Quick Start Guide that you can access (on Windows, at least), that I have been told is quite handy and informative. In addition, there are Self-paced e-learning modules on programming available through SAS publications.
And of course, there are all our training classes. I think the issue of NODUPKEY and PROC SORT is covered in chapter 6 of our Advanced Programming class. (But we do not show an SQL alternative to PROC SORT in that class because of the "apples" and "oranges" aspect of the comparison. Proc SORT does one thing --sort data; while PROC SQL muddies the waters with the ability to select columns, create columns, order columns, group columns, etc all in one fell swoop.) The use of the DISTINCT keyword with PROC SQL to eliminate duplicates is covered in the SQL class that we offer.
But, I digress, you wanted to know about setting up a basic discussion forum. If you go here, you can enter a suggestion on how to improve the SAS Customer Support Web site:
http://support.sas.com/contact/intro.html .
Then, if you go to
http://support.sas.com/rnd/app/
you will find a LOT of information for the Statistics and Operations Research community. And this site shows all the SAS communities
http://support.sas.com/rnd/intro.html which have some form of FAQ or example section.
There is also a Listserv that is not hosted by SAS called SAS-L. Information about joining the SAS-L listserv can be found here:
http://www.listserv.uga.edu/archives/sas-l.html and for more info on SAS-L, you can refer to this SUGI paper:
http://www2.sas.com/proceedings/sugi29/138-29.pdf
But I still think that Tech Support is your best resource for this specific question.
cynthia