http://ecn.channel9.msdn.com/o9/previewImages/100/476307_100x75.jpg Eric Hanson, principal program manager for SQL Server data warehousing, walks through several of the key features and functions of SQL Server 2008.  Simplify queries that require grouping or aggregation. Using Grouping Sets reduces repetitive scans of the same data and improves performance. If you're having difficulty reading the scripts, please select a higher-res format for viewing. en Wed, 19 Jun 2013 18:32:56 GMT Wed, 19 Jun 2013 18:32:56 GMT Rev9