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PostGIS Cookbook

You're reading from   PostGIS Cookbook Store, organize, manipulate, and analyze spatial data

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Product type Paperback
Published in Mar 2018
Publisher
ISBN-13 9781788299329
Length 584 pages
Edition 2nd Edition
Languages
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Authors (6):
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Pedro Wightman Pedro Wightman
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Pedro Wightman
Bborie Park Bborie Park
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Bborie Park
Paolo Corti Paolo Corti
Author Profile Icon Paolo Corti
Paolo Corti
Stephen Vincent Mather Stephen Vincent Mather
Author Profile Icon Stephen Vincent Mather
Stephen Vincent Mather
Thomas Kraft Thomas Kraft
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Thomas Kraft
Mayra Zurbarán Mayra Zurbarán
Author Profile Icon Mayra Zurbarán
Mayra Zurbarán
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Table of Contents (14) Chapters Close

Preface 1. Moving Data In and Out of PostGIS FREE CHAPTER 2. Structures That Work 3. Working with Vector Data – The Basics 4. Working with Vector Data – Advanced Recipes 5. Working with Raster Data 6. Working with pgRouting 7. Into the Nth Dimension 8. PostGIS Programming 9. PostGIS and the Web 10. Maintenance, Optimization, and Performance Tuning 11. Using Desktop Clients 12. Introduction to Location Privacy Protection Mechanisms 13. Other Books You May Enjoy

Introduction


This chapter focuses on ways to structure data using the functionality provided by the combination of PostgreSQL and PostGIS. These will be useful approaches for structuring and cleaning up imported data, converting tabular data into spatial data on the fly when it is entered, and maintaining relationships between tables and datasets using functionality endemic to the powerful combination of PostgreSQL and PostGIS. There are three categories of techniques with which we will leverage these functionalities: automatic population and modification of data using views and triggers, object orientation using PostgreSQL table inheritance, and using PostGIS functions (stored procedures) to reconstruct and normalize problematic data.

Automatic population of data is where the chapter begins. By leveraging PostgreSQL views and triggers, we can create ad hoc and flexible solutions to create connections between and within the tables. By extension, and for more formal or structured cases, PostgreSQL...

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