Derived Data

Derived data is produced by applying calculations to input data at the time the request for that data is made, i.e., the data has not been pre-computed and stored on the database. The purpose of using derived data is to save storage space and calculation time, particularly for calculated data that may be infrequently called for or that is susceptible to a high degree of interactive personalization by the user. The tradeoff is slower retrievals.

Related Terms: Pre-Calculated Data

from OLAP Glossary, 1995

DSS Home | About Us | Contact Us | Site Index | Subscribe | What's New

Copyright © 1995-2008 by D. J. Power (see his home page).
DSSResources.COM^sm is maintained by Alexander P. Power and Daniel J. Power of PowerEnterprises.net. Please contact them at webmaster@dssresources.com with questions. See disclaimer and privacy statement. This page was last modified .

DSSResources.com is an affiliate of the Business Intelligence Network

DSS Home \| About Us \| Contact Us \| Site Index \| Subscribe \| What's New
	Copyright © 1995-2008 by D. J. Power (see his home page). DSSResources.COM^sm is maintained by Alexander P. Power and Daniel J. Power of PowerEnterprises.net. Please contact them at webmaster@dssresources.com with questions. See disclaimer and privacy statement. This page was last modified . DSSResources.com is an affiliate of the Business Intelligence Network