Goos SQL refernce - Mailing list pgsql-sql

I have several cards for HTML, PERL, Sendmail, etc.

Does anyone know of a good reference for SQL that will help on in basic
DB building?  I uses the web pages, but sometimes I'd like a physical
object to hold (or beat on the monitor, thus another advantage of a card
vs book).

-- 
Zot O'Connor

www.ZotConsulting.com
www.WhiteKnightHackers.com