http://blogs.msdn.com/microsoft_press/archive/2009/04/23/new-book-inside-microsoft-sql-server-2008-t-sql-querying.aspxItzik Ben-Gan says a few words about the differences between his new book, "Inside Microsoft SQL Server 2008: T-SQL Querying," and his previous SQL Server 2005 edition.en-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/microsoft_press/archive/2009/04/23/new-book-inside-microsoft-sql-server-2008-t-sql-querying.aspx#9565695Fri, 24 Apr 2009 02:41:58 GMT91d46819-8472-40ad-a661-2c78acb4018c:9565695New book: Inside Microsoft&amp;#174; SQL Server&amp;#174; 2008: T-SQL Querying | ASP NET Hosting<p>PingBack from <a rel="nofollow" target="_new" href="http://asp-net-hosting.simplynetdev.com/new-book-inside-microsoftamp174-sql-serveramp174-2008-t-sql-querying/">http://asp-net-hosting.simplynetdev.com/new-book-inside-microsoftamp174-sql-serveramp174-2008-t-sql-querying/</a></p> http://blogs.msdn.com/microsoft_press/archive/2009/04/23/new-book-inside-microsoft-sql-server-2008-t-sql-querying.aspx#9567975Sat, 25 Apr 2009 13:25:48 GMT91d46819-8472-40ad-a661-2c78acb4018c:9567975JohnCKirk<p>The book sounds interesting, thanks.</p> <p>As for the logic puzzle, I think it's a bit of a trick question. If the trains start out 100 miles apart, and they each travel at 100mph, it will take them 30 minutes to travel 50 miles, then they'll crash. If the mosquito is flying back and forth continuously for that 30 minutes, at 200mph, it will travel 100 miles. We don't need to know the exact positions of the trains each time it &quot;bounces&quot;.</p>