Visual Representation of SQL Joins (2009)

The big payoff is the image at <a href="http://www.codeproject.com/KB/database/Visual_SQL_Joins/Visual_SQL_JOINS_orig.jpg" rel="nofollow">http:&#x2F;&#x2F;www.codeproject.com&#x2F;KB&#x2F;database&#x2F;Visual_SQL_Joins&#x2F;Visu...</a>