PostgreSQL is the world’s most advanced open source relational database; PostgreSQL has an extension specialized in adding support for geographic object: PostGIS; the following screenshots illustrate steps for installing PostgreSQL and PostGIS extension.
First of all, run PostgreSQL setup, which you can download from downloads page.
The next step is installing PostGIS in order to make the database aware of spatial data. Therefore, please go to the next section.
For more information about PostgreSQL please visit PostgreSQL website.