Скачать или смотреть Combining Multiple Filters Using Logical Operators in GeoServer

Combining Multiple filters using Logical Operators in GeoServer
In this session, we will delve into methods for enhancing data queries in WFS filtering by utilizing multiple filters and logical operators such as "AND," "OR," and "NOT." These operators empower users to create intricate filter expressions that effectively refine spatial data requests.

For instance, if you're interested in filtering features by two properties—such as population and area—you can construct a query that returns only those features meeting both criteria through the use of the 'AND' operator. Conversely, the 'OR' operator enables you to retrieve features that satisfy at least one condition, broadening the range of results. Additionally, the 'NOT' operator allows you to exclude specific features based on certain conditions, which is particularly useful for filtering out unwanted values.
We will also explore the integration of logical operators with geometric filters, showcasing techniques for constructing queries that yield precise results.

For example, we will demonstrate how to combine the 'Within' spatial operator with an 'Equals' predicate to retrieve features that conform to both geographic and attribute criteria.
Join us to learn how to craft sophisticated filter expressions that will enhance your ability to access and analyze spatial datasets effectively.

The items that mentioned in this video:
0:00 - Introduction Logical filtering in GeoServer
0:55 - Using 'AND' operator in GeoServer filtering
04:08 - Using 'OR' operator in GeoServer filtering
05:30 - Using 'NOT' operator in GeoServer filtering
07:25 - Using combine multiple operators in GeoServer filtering

Contact us:
[email protected]
  / geospatialtechno  
  / geospatialtechn  

#geoserver #webmapping #webservices #opensourcesoftware