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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
174 DB2 Cube Views: A Primer
Figure 4-21 Explain SQL
Selecting Explain SQL will produce a new window as shown in Figure 4-22
(possible preceded by a message stating that the Explain tables have been
created, if they were missing) where the SQL statement to be explained can be
entered.
Chapter 4. Using the cube model for summary tables optimization 175
Figure 4-22 Explain SQL statement dialog
The advantage of using this approach to explaining SQL statements is that the
access path chosen by the optimizer will be displayed graphically, which makes ...
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ISBN: 0738499730Purchase book