Thought about Spatial Databases -- PostGIS

The spatial database is the most important component in any GIS system. Remember, the data depends on it.

A good spatial databases must perform complex spatial request efficiently and that is just what PostGIS is able to do!

PostGIS adds support for geographic objects to the PostgreSQL object-relational database. In effect, PostGIS "spatially enables" the PostgreSQL server, allowing it to be used as a backend spatial database for geographic information systems (GIS).

PostGIS has been developed by Refractions Research as a project in open source spatial database technology. PostGIS is released under the GNU General Public License, making it a Free and Open Source Software.

Installation

• First step: download and install PostgreSQL
• Second step: download and install PostGIS
• Third step (Optional but recommanded): download and install pgadmin