1. ArcGIS Queries Maneesh Sharma West Virginia GIS Technical Center
Department of Geology and Geography
West Virginia University
Morgantown 26505

2. Overview Queries in feature classes Query in Data driven Pages
Attribute Query
Demonstration
Location Query
Query in Data driven Pages
Dynamic query
Questions

3. Queries in a feature class
Attribute Query
“A query that extracts data/features from a layer based on the value of its attribute data”
Query can be
Simple query
Compound query
Subquery

4. Simple Query A query expression needs 3 components
Attribute Field Operator Field Attribute Value
"AssessedAcres" >=
The result will show a set of selected features

5. Simple Query Different types of operators can be used
Calculations can be done
"AssessedAcres" >= 0.12 * 100 Or
"Perimeter" >= "Acres" * 10

6. Compound Query
Multiple attribute and operators can be used to create compound query
Complex expressions can be created by using AND or OR
"Perimeter" >= or "Acres" <= 0.35

7. Subqueries A subquery is a nested query
Supported just by geodatabase data sources only
Will NOT work with shapefiles
"Entity" NOT IN (SELECT "ENTITY" FROM BLDTYPES2)
Demonstration

8. Location Query
A location query is based on their location relative to other features that meet certain conditions
Main types
Near
Intersect
Inside

9. Location Query Three things needed for query
Layer that contains features you want to select
Location relationship that needs to be analyzed
Layer that contains related features
“Building types within 2000 ft of selected parcel”
Demonstration

10. Query in Data Driven Pages
Each layer can take advantage of the Data Driven Page setup
Layer has to have the page number from the index layer associated with the features
By setting the Page Definition by using page number, you can show or hide each feature on the map

11. Query in Data Driven Pages
Demonstration