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OCP Instructors Guide for Oracle DBA Certification

Chapter 3 - Review Meetings

Logical Data Model Review

  • Check constraints

  • Unique constraints

  • Primary key constraints

  • Foreign key constraints

  • Business rules to be enforced by triggers and procedures

  • Business rules to be enforced by application code

  • Logical/process model comparison

  • Volume statistics

  • Growth rates and purge criteria

Designing for Performance

This meeting is held with the application development units before any physical DDL is generated by the DBA.  Proper transaction design and efficient SQL coding results in less performance-oriented database alterations being made during the latter stages of the design and implementation process.  Determining predicate usage will allow the DBA to create additional database objects (indexes, materialized views, index organized tables) to increase SQL, and subsequently, application performance.  The following information is discussed:

  • Normalization vs denormalization

  • Table access requirements and predicate usage

  • Database objects used to increase SQL performance including:

    • B-Tree Indexes

    • Bitmap Indexes

    • Bitmap join indexes

    • Function-Based indexes

The above text is an excerpt from:

OCP Instructors Guide for Oracle DBA Certification
A Study Guide to Advanced Oracle Certified Professional Database
Administration Techniques

ISBN 0-9744355-3-8

by Christopher T. Foot

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