1. COMPUTERS AND STATISTICS IN ARCHAEOLOGY Week 6. The Geodatabase: adding attributes and querying spatial data © Richard Haddlesey www.medievalarchitecture.net

2. The Geodatabase A database is a collection of information that is structured and recorded in a consistent manner A database is a collection of information that is structured and recorded in a consistent manner Conolly and Lake 2006, 51

3. The Geodatabase A DBMS A DBMS Quick access to, and the ability to select subsets of data, potentially by several users at the same timeQuick access to, and the ability to select subsets of data, potentially by several users at the same time A facility for inputting, editing and updating dataA facility for inputting, editing and updating data The ability to define and enforce rulesThe ability to define and enforce rules Protect data against unintentional destructionProtect data against unintentional destruction Conolly and Lake 2006, 51

4. The Geodatabase A GIS program needs to store, manage and retrieve both geographical and attribute data A GIS program needs to store, manage and retrieve both geographical and attribute data Attribute data can be added in ArcView or externally in MS Access Attribute data can be added in ArcView or externally in MS Access

5. Normalisation Flat file Flat file Conolly and Lake 2006, 52

6. Normalisation Relational structure Relational structure Conolly and Lake 2006, 52

7. Normalisation http://www.utexas.edu/its/windows/database/datamodeling/rm/overview.html http://www.utexas.edu/its/windows/database/datamodeling/rm/overview.html http://www.utexas.edu/its/windows/database/datamodeling/rm/overview.html Conolly and Lake 2006, 51-5 Conolly and Lake 2006, 51-5