Databases and Geodatabases

What is the purpose of a database?

• General data storage

• Specialized for spatial/geographic data

What types of data can a geodatabase store?

• Text, numbers, dates, etc.

• Spatial (points, lines, polygons), raster, etc.

What is the structure of a database?

• Tables, rows, and columns

• Feature classes, raster datasets, topology rules

What software is commonly used for databases?

• MySQL, PostgreSQL, Oracle, MongoDB

• ArcGIS, QGIS, PostGIS, etc.

What query language is used for general databases?

• SQL (general)

• Spatial SQL extensions for spatial operations

What are the spatial capabilities of a geodatabase?

• Limited

• Advanced (buffer, spatial joins, proximity)

What is the data integrity approach in a database?

• Relies on keys and constraints

• Includes spatial integrity and topological rules

What is the multi-user editing capability of a geodatabase?

• Supported with standard transactions

• Advanced, especially in enterprise setups

What is involved in geodatabase management?

• Organizing spatial data, ensuring data integrity, optimizing performance, securing data, and regular maintenance

• Only organizing spatial data