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Help with bitmaps and b-tree indexes
How is the b-tree index stored internally? If a query is submitted, how is the query result loaded in memory? Is it block-oriented or column-oriented? Bitmaps are stored compressed with one row/column value in the...
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Nov 8, 2005
Explanation of the different types of indexes
Can you describe the differences between the types of Oracle indexing and when I should do which? (i.e. B-tree, function-based, bitmap, and so on...)
The B-tree index is the most-used type of index that Oracle provides. It provides fast lookup of rows containing a desired key value. It is not suitable if the column... More... Jul 14, 2004
Setting Oracle parameters
We are running an Oracle 8.1.7 database on a Windows 2000 Advanced Server, quad processor IBM server. We get reports of data access and performance speed issues. Somebody mentioned to me that we could manipulate some settings in our INIT.ORA file, namely the following...
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Jul 13, 2005
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Mobile middleware vendors are a strong alternative to high-profile partnerships like RIM and SAP
Even as RIM focuses on encouraging more third-party BlackBerry development, middleware specialists still play an important enterprise role...
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May 28, 2008
Oracle further unwraps Fusion, nips at SAP
Fusion project this week, outlining what the company has done over the last year to launch middleware components and develop new applications using technology from its nearly $19 billion in acquisitions.
Oracle put nearly a dozen executives on stage during an event in San Francisco designed... More... Jan 19, 2006
Oracle-BEA deal gets the green light
the BEA stockholders, who on Friday morning will vote on Oracle's $17 per share offer for the middleware giant -- an offer that was initially rejected but ultimately accepted by BEA's board of directors under pressure from Carl Icahn, a major technology investor and BEA's biggest stockholder.
... More... Feb 28, 2008
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