Book Image

Programming ArcGIS with Python Cookbook, Second Edition

By : Eric Pimpler
Book Image

Programming ArcGIS with Python Cookbook, Second Edition

By: Eric Pimpler

Overview of this book

The book kicks off with the fundamentals of starting to use Python with ArcGIS, followed by recipes on managing map documents and layers, including how to find and fix broken data links in these files. In the second part of the book, you will learn to create custom geoprocessing tools and how to use the Attribute and Location tools to select specific features. The third part of the book covers topics for advanced users including the REST API, and also teaches you how to use Python with ArcGIS Pro. The book finishes with appendices covering how to automate Python scripts, and the five things that should be at the back of every GIS programmer's mind.
Table of Contents (17 chapters)
16
Index

Selecting features and rows with the Select Layer by Attribute tool


Attribute queries can be executed against a feature class or table through the use of the Select Layer by Attribute tool. A where clause can be included to filter the selected records and various selection types can be included.

Getting ready

The Select Layer by Attribute tool, shown in the following screenshot, is used to select records from a feature class or table based on a query that you define. We covered the somewhat complex topic of queries in an earlier recipe in this chapter, so hopefully, you now understand the basic concepts of creating a query. You have also learned how to create a temporary, in-memory representation of a feature class or table, which is a pre-requisite to using either the Select by Attributes or Select by Location tool.

The Select by Attributes tool uses a query along with either a feature layer or table view and a selection method to select records. By default, the selection method will be a...