query layer

query layer

[′kwir·ē ‚lā·ər]
(computer science)
A program that mediates between data sources on the World Wide Web and a user's query by breaking the query into subqueries against each information source and then gathering together the results for presentation to the user.
References in periodicals archive ?
Deeper Integration of SAP HANA and Esri In addition to the existing read-only query layer integration to SAP HANA released by Esri last year, ArcGIS for Desktop now supports feature services providing a method for users to create, read, update or delete spatial data directly in SAP HANA.
For example, if a user wants to find roads with a specific name, the road layer is a query layer.
There are four base layers and a query layer in the prototype, shown in the list of layers in Table 1.
The Preview Inspectors feature within Stratusphere UX improves on existing Inspectors by providing an optimized query layer, and portraying more data relationships among users, desktops and applications.
Esri supports deployments of SAP HANA with query layers and features services for customers that want to dramatically increase spatial query performance by running SAP HANA side by side with ArcGIS.
1 release, Esri will support IBM Netezza appliances through query layers.