August 14, 2009
PostGIS is the spatial database attached to open source PostGres database. You can read all about it by clicking on the link.
It is a free way to host your GIS data in a geospatial database. If your organization is still storing its GIS data in the form of ESRI shapefiles, its time to move out of that mode! I know that established enterprise software out there are too expensive to invest in. PostGIS is on of the free ways to step into the direction of hosting GIS data and start moving in the right direction.
I looked around and found a really good step-by-step guide for beginners to help them get started with PostGIS. There are inbuilt functions within PostGIS that help in getting most of the rudimentary spatial querying done.