Intro to GIS | Summer 2012 Attribute Tables – Part 1. DATABASES. Why do we care about Databases?. Integrated sets of data Focused on a particular area and subject Form the basis of GIS analysis and decision-making
Intro to GIS | Summer 2012
Attribute Tables – Part 1
Why do we care about Databases?
How are Databases Managed?
Relational Database (RDBMS)
Table Data Structure
Record: a row in a database; represents one feature (a.k.a. “tuple”)
Attribute: a column in a database; contains attribute values (a.k.a. “field”)
Which attribute field is the Attribute Key in this case?
Object (ODBMS) & Object-Relational (ORDBMS) Databases
GEOGRAPHIC (SPATIAL) DATABASES
What is a Geographic (Spatial) Database?
Features can be:
Validated by rules
Modeled with complex behavior
ESRI Comparison of Geodatabases
QUERYING GIS DATA
Getting Information from GIS data