Oracle 8i DBA: Architecture and Administration Certification by Damir Bersinic

By Damir Bersinic

"Damir Bersinic can provide a basically written, accomplished consultant - with countless numbers of special exam-prep questions &mmdash; that's certain to support Oracle execs organize for and move the second one Oracle certification examination. -Harry Liebschutz, Senior Oracle advisor, HDL Consulting, Inc., and writer of The Oracle Cookbook *Master the fabric for the Oracle8i DBA examination 1Z0-023 *Test your wisdom with evaluation questions, situations, and lab routines *Practice on state of the art test-preparation software program the one advisor you would like for Oracle8i DBA structure and management examination success...You're keeping on your palms the main complete and powerful consultant to be had for the second one examination at the Oracle8i DBA song. a very good workforce of Oracle execs and running shoes supplies crystal-clear reasons of each subject lined, highlighting exam-critical techniques and delivering hands-on assistance that may assist you on your real-world DBA profession. all through, they supply pre-test, exam-style evaluate questions, state of affairs difficulties, and lab workouts - every little thing you must grasp the fabric and cross the examination. inside of, get entire assurance of structure and management examination objectives*Get a deal with on Oracle8i structure and server fundamentals *Create Oracle databases, info dictionary perspectives, and traditional applications *Manage Oracle circumstances, tablespaces, and datafiles *Maintain the regulate dossier and redo log records *Delve into garage constitution and relationships *Take keep watch over of rollback segments, tables, and indexes *Get the inside track on keeping info integrity *Discover how toload and reorganize info *Master Oracle safety, from password and assets to clients, privileges, and roles *Find out tips on how to utilize traditional Language aid Test-Prep instruments on CD-ROM*Hungry Minds try engine powered through superior Boson software program *A searchable e-version of the ebook *Trial types of the creation to Oracle8i structure and management and WebDBA"

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1107 Appendix F: Suggested Readings, Web Sites, and Other Resources . . . . . . . . . . . . . . 1125 Index. . . . . . . . . . . . . . . . . . . . 1129 End-User License Agreement . . . . . . . . . . . . F 10/24/01 10:08 AM Page 1 P Overview of Oracle Architecture and Administration A s is true with most things, it is always good to start at the beginning. This first part of the book does exactly that by introducing you to the architectural elements of Oracle so that you have a better sense of what components make up an Oracle database and instance.

ORA parameters MTS_DISPATCHERS (default of 0) and MTS_MAX_DISPATCHERS (default of 5). F 18 10/24/01 10:08 AM Page 18 Part I ✦ Overview of Oracle Architecture and Administration The Oracle8i Concepts manual provides more information on multi-threaded server and the use of shared server and dispatcher processes. ✦ LCK0 — The Lock Process provides inter-instance locking between nodes in an Oracle Parallel Server environment. When using Oracle Parallel Server, more than one instance can access the same database.

The value for this parameter is determined when the database is created and cannot be changed. Essentially, each block in the database buffer cache is exactly the same size, in bytes, as each database block in the datafiles. This makes it easy to bring datafile blocks into the database buffer cache — they are the same size. The default for DB_BLOCK_SIZE is 2048KB — too small in almost all cases. For a discussion on factors that can help determine the proper setting of DB_BLOCK_SIZE, please refer to Chapter 4.

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