version-compare
Features Supported by the Editions of SQL Server
2012 http://msdn.microsoft.com/en-us/library/cc645993(v=SQL.110).aspx 2008R2 http://msdn.microsoft.com/en-us/library/cc645993(v=sql.105).aspx 2008 http://msdn.microsoft.com/en-us/library/cc645993(v=sql.100).aspx