Someone on the PostGIS discussion list asked about a problem converting an Oracle database to PostGIS and he had run into some difficulties with Oracle’s

I received an email a few weeks ago asking: I was wondering if you could post an article explaining how to create a polygon from

I recently wrote an article on the use of External File with Oracle tables to load point data into Oracle. I thought I would have

Yesterday, I posted a short article on Converting Google Earth Formatted Longitude/Latitude points to decimal degrees. The Google Earth longitude/latitude values are expressed as a

The GetVertices function in the MDSYS.SDO_UTIL package in Oracle Spatial is an exceedingly useful function. From the Oracle documentation of this function: This function returns

This is my first blog article on PostGIS. On the PostGIS discussion list, a question was asked: > I have a polygon table that has