Join Adam Wilbert for an in-depth discussion in this video Creating definition queries, part of ArcGIS Essential Training.
- When we know that we want to filter…our data sources right from the start,…we can use a Definition Query to prevent the…slowdown that comes from loading large feature classes.…It also saves us a step of making…a selection, and saving it out as a new layer.…A Definition Query operates on the data…before it is loaded into the map document,…which can dramatically speed up your document's performance.…Let's apply a couple of Definition Queries…to our Washington State Transportation layer.…In order to get to it, I'm going to right-click on…Washington Transportation, and choose properties.…From the Layer Properties, we'll choose a tab…called Definition Query.…
Here we can type in our Definition Query,…which is simply an SQL statement,…just like the one's we were using earlier…when we were selecting by attributes.…If you need help, we can click on…Query Builder here, to get to the Query Builder tool.…Now earlier, we had seen some of…the attributes we might be interested in.…In this case, I want to filter out…my transportation routes to just the trails.…
- Getting to know the ArcMap interface
- Geocoding addresses
- Measuring distances
- Adding and importing data
- Labeling and adding graphs
- Editing layer properties
- Seeing multiple views
- Making selections
- Exploring geospatial data with ArcCatalog
- Working with vector and raster data
- Styling the map
- Adding your own data
- Using the ModelBuilder
- Adding a legend and annotations
Skill Level Intermediate
1. Getting Started with a Geographic Information System (GIS)
2. Organizing the Map
3. Working with Data Layers
4. Seeing Multiple Views of the Map
5. Selecting Map Elements
6. Exploring Geospatial Data
7. Geoprocessing Tasks
8. Working with Vector Data
9. Working with Raster Data
10. Styling the Map
11. Creating Your Own Data
12. Exploring the ModelBuilder
13. Finishing the Map
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