Oracle8i features

From: Soman Manoj <manojdsoman_at_yahoo.com>
Date: Fri, 17 Aug 2001 06:21:28 -0700
Message-ID: <F001.0036EBA8.20010817053648@fatcity.com>

We wish to use Oracle 8i features like partitioning and global and local indexes in our datawarehousing project.

We have the following doubts regarding these: 1)Does usage of local index make inserts,updates and deletes slower as compared to global index? 2)When is the use of Bitmap index preferable over local index? We have tried using bitmap index and the performance is slower compared to local index. Any document on the usage of such indexes would be helpful.
3) When can we use parallelism to accelerate the speed of execution of the queries. How is the degree of parallelism to be given determined?

Any information regarding these queries would be welcome.

Thanks and regards,
Roby

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Author: Soman Manoj
INET: manojdsoman_at_yahoo.com

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