Geographic Information Systems: Module 4

Uluocha, N.

Learning Object

The data used in GIS operations are usually organized in form of databases. A database, in turn, is typically organized according to general data models or structures. Understanding the nature of databases and database management systems is, therefore, crucial to understanding the creation and handling of data in a GIS environment. In this unit, we will be looking at both spatial and non-spatial databases.At the end of this unit, you should be able to: • explain the concept of database (DB) and database management system (DBMS) • examine the nature, content, and functions of spatial database systems • identify non-spatial database structures

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National Open University of Nigeria (NOUN)

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