Friday, 25 December 2009

New Features for Administrators - Question 041

Online index rebuild functionality has been extended to include which four index structures? (Choose four.)

A. Bitmap indexes

B. Reverse key indexes

C. Function-based indexes

D. Key-compressed indexes on regular tables

E. Key-compressed indexes on IOT (including secondary indexes)

Answer: B, C, D, E

Explanation:

It’s possible to rebuild reverse key, function-based, key-compressed indexes on regular tables and on IOT (including secondary indexes).

Incorrect Answers

A: Oracle9i does not currently support online index rebuilding for bitmap or partitioned local and global indexes.

OCP Oracle9i Database: New Features for Administrators, Daniel Benjamin, p. 74-83

Chapter 2: Availability Enhancements

Oracle 9i New Features, Robert Freeman, p. 46-53

Chapter 2: Oracle9i Architecture Changes

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