An assessment of POSTGRES as a tool for representing Geographical Information Systems
Geographical databases, such as ARC-INFO, have traditionally been stored in a hybrid database management system, with spatial data stored in one form, and the entity-relationship data stored in another form. There have been attempts in the past (van Roessel & Fosnight, 1984) to represent all geographical data in one database form, this being as a relational database. However, the representations have not always been totally natural. POSTGRES has been developed along the lines of a relational database, but it has a number of extra features that gives its users much more flexibility. These have been exploited in this report to enable POSTGRES to represent spatial data in more natural way, and yet retain all of the power of a standard relational database when dealing with entity-relationship data.
SubjectsField of Research::08 - Information and Computing Sciences
- Engineering: Reports