https://www.dotnetzone.gr:443/cs/blogs/dotnetrules/archive/2011/11/15/using-hierarchyid-system-data-type-in-sql-server-2008.aspxIn this post I would like to talk about the new system data type HierarchyID which was introduced in SQL Server 2008. I know there are samples of how to use HierarchyID in BOL,MSDN and elsewhere but I thought that it would be a good idea to give it aelCommunityServer 2.1 SP3 (Build: 20423.1)