ArcGIS Query Layers
Over the last couple of years, spatial database technologies have become easier to acquire, implement and configure. Whether it's Microsoft's foray into spatial databases with the release of SQL Server 2008 , the numerous Open Source spatial database options, or Oracle , organizations are starting to see the value applying a geographic context to their corporate data. To make things even easier and more appealing to get into a spatial database, are the ‘free’ of the Open Source communities and the following offerings by Microsoft & Oracle: Microsoft SQL Server 2008 Express Oracle Express Both of these RDBMS are “Free to develop, deploy, and distribute”. This means that anybody can download, and start building a ‘GIS’ warehouse with very minimal costs. Obviously, there are some limitations with these free offerings and they are not going to provide base for a large enterprise solution, but they are a great way to get into the technology. ESRI has been