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Oracle Data Warehouse Tuning for 10g
book

Oracle Data Warehouse Tuning for 10g

by Gavin JT Powell
April 2011
Intermediate to advanced content levelIntermediate to advanced
504 pages
16h 49m
English
Digital Press
Content preview from Oracle Data Warehouse Tuning for 10g
292
10.3
What Can the MODEL Clause Do?
PRESENTV(<cell>, <expression>, <expression>)
. As for PRES-
ENTNNV, but allowing NULL values.
PREVIOUS(<cell>)
. Returns a value at the beginning of each itera-
tion or loop.
ITERATION_NUMBER. Returns a completed loop iteration
sequence number or the subscript of a loop.
10.3 What Can the MODEL Clause Do?
The answer to this question is quite simple: LOTS! And the easiest way to
explain all the incredible capabilities of the MODEL clause is to demon-
strate by example.
The objective of this book is performance. Therefore going through all
the capabilities of the MODEL clause in detail would essentially be dupli- ...
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Publisher Resources

ISBN: 9781555583354