The Content Broker Query API contains functionality to query for content in the Content Data Store. This is found in the `Tridion.ContentDelivery.DynamicContent.Query` and `Tridion.ContentDelivery.DynamicContent.Filters` namespaces for .Net.
The Content Broker Query API for .NET, found in Tridion.ContentDelivery.DynamicContent.Query and Tridion.ContentDelivery.DynamicContent.Filters, contains functionality to query for content in the Content Data Store.
The basic construction of a query is based on applying criteria to find the desired items in the Content Broker database. The methods exposed by the Content Broker Query API provide you with fine-grained control over retrieving and displaying taxonomies and taxonomy relationships.