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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
226
8.2
GROUP BY Clause Extensions
CUBE clauses. The GROUPING SETS clause allows you to remove
some of the subtotals from the result set, in much the same way that the
Figure 8.9
Sales revenues by
category.
Figure 8.10
Sales revenues by
region.
Figure 8.11
Sales revenues by
industry.
8.2
GROUP BY Clause Extensions 227
Chapter 8
HAVING clause can be used to filter out aggregated groups from an
aggregated row set.
GROUPING SETS Clause Syntax
Figure 8.12 highlights the syntax of the GROUPING SETS clause. Note
how both ROLLUP and CUBE clauses can be subset ...
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Publisher Resources

ISBN: 9781555583354