× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.


  1.  Home
  2. MIDRANGE-L
  3. April 2005

Materialized query tables (MQTs)

Materialized query tables (MQTs)
Analysis of large amounts of data driven by complex query processes often 
involves complex joining and aggregation of data. Often, such as in data 
warehouse applications, these complex queries are run frequently against 
similar data elements in DB2 UDB for iSeries. MQTs offer DB2-aware 
aggregates of data designed to reduce the intensive processes required to 
respond to repetitive complex queries. 
The query rewrite function of DB2 UDB for iSeries redirects the query to 
use the aggregated data precomputed and stored in the MQT, greatly 
reducing the processing time. 
For more information about MQTs including applicable PTF prerequisites, 
performance implications, and usage information, visit 
http://www.ibm.com/iseries/db2/mqt.html

As an Amazon Associate we earn from qualifying purchases.

This thread ...
Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.