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DB2 Cube Views: A Primer
book

DB2 Cube Views: A Primer

by Corinne Baragoin, Geetha Balasubramaniam, Bhuvaneshwari Chandrasekharan, Landon DelSordo, Jan B. Lillelund, Julie Maw, Annie Neroda, Paulo Pereira, Jo A. Ramos
September 2003
Beginner to intermediate content levelBeginner to intermediate
754 pages
18h 9m
English
IBM Redbooks
Content preview from DB2 Cube Views: A Primer
190 DB2 Cube Views: A Primer
Doing an explain without the MQTs yields the situation shown in Figure 4-26.
Figure 4-26 The top five most profitable consumer groups without MQTs
As can be seen in Figure 4-26, the cost of running the query without the query
rewrite is 766,026.56 timerons.
Now, in Figure 4-27, we try the same query on the same data, but with the MQTs
in place.
Chapter 4. Using the cube model for summary tables optimization 191
Figure 4-27 The top five most profitable consumer groups with MQTs
Figure 4-27 tells us that the cost of the ...
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Publisher Resources

ISBN: 0738499730Purchase book