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Spatial Queries
PLEASE NOTE: this lesson has been translated from German to English. However, some of the figures are still in German.
The aim of spatial queries and their analysis is to detect spatial relationships between elements of one or more subjects, in order to locate spatial objects. The results of such analysis can be used in decision making. This lesson is divided into four units. An introduction to the subject and the most important terms are provided in the first unit. These terms will be discussed in more detail in the other units.
Learning Objectives
- You know the objects of queries and are able to establish a connection between database structure and query possibilities.
- You are able to formulate a thematic query and to execute a simple and a complex query.
- You understand the basics of a geometric query and know how to perform the most important queries.
- You know the topological relationships between the objects and are able to formulate a topological query.
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