Oracle Database Performance Tuning

ORC-402 (4 Days)
Request Pricing for Oracle Database Performance Tuning

Oracle Training Overview

This Oracle Database Performance Tuning training course teaches attendees techniques for diagnosing and fixing performance issues within the instance and the database. 

Note: The course uses the current release of the database, but can be delivered in previous versions if needed.

Location and Pricing

Most Accelebrate courses are taught as private, customized training for 3 or more attendees at our clients' sites worldwide. In addition, we offer live, private online classes for teams who may be in multiple locations or wish to save on travel costs. Please visit our client list for organizations for whom we have delivered onsite training. To receive a customized proposal and price quote for private on-site or online training, please contact us.

In addition, some courses are available as live, online classes for individuals. See a schedule of online courses.

Oracle Training Objectives

All students will:

  • Understand the need for and the limitations of database tuning
  • Identify performance bottlenecks
  • Tune instance memory structures
  • Understand the options for database physical storage
  • Optimize performance with various table and index structures
  • Use supplied facilities for gathering and interpreting performance metrics
  • Learn techniques for stabilizing and re-optimizing SQL execution plans

Oracle Training Outline

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Introduction
The tuning methodology
  • What can be tuned?
  • The concept of DB Time
  • The response time tuning method
Server architecture and SQL statement processing: review
  • Memory structures: SGA and PGA
  • Background processes
  • Session architecture
  • Multithreaded and multiprocess models
  • The SQL parse / bind / execute / fetch cycle
Diagnostic tools and wait events
  • Use the wait event interface
  • Enable session tracing
  • Interrogate the Active Session History
Frequently encountered wait events
  • Disc I/O events
  • Buffer cache related events
  • Shared pool events
  • Redo generation events
  • Contention events
  • Enqueue waits
  • Latch and mutex events
Using Statspack and AWR reports
  • Understand the automatic snapshot mechanism
  • Use the DBMS_WORKLOAD_REPOSITORY package
  • Create snapshots
  • Create baselines
  • Modify settings
  • Generate and interpret AWR reports
  • Generate AWR SQL reports
  • Install and use Statspack
Tuning memory structures
  • Investigate the SGA memory structures
  • Diagnose and fix issues with sizing of the SGA components
  • Use automatic shared memory management (ASMM)
  • Manage the aggregate PGA
  • Understand the need for PGA memory
  • Correctly size the aggregate PGA
  • Work with temporary tablespaces
  • Enable automatic memory management (AMM)
Database physical structures
  • Understand when and why RAID and/or ASM is needed
  • Give Oracle information about disk performance
  • Investigate the space allocation algorithms
  • Contrast smallfile and bigfile tablespaces
  • Describe and evaluate the use of Automatic Storage Management
Metrics, alerts, and autotasks: the “self-managing” database
  • Define statistics and metrics
  • Use the server generated alert system
  • Set up alerts on baselines
  • Investigate the capabilities of the Autotask system
Indexes
  • Understand the purpose of indexes
  • Describe the types of index
  • B-tree indexes
  • Function based indexes
  • Reverse key indexes
  • Bitmap and bitmap join indexes
  • Create and maintain indexes
  • The Oracle Text domain index type
Tables
  • Heap Tables
  • Partitioned Tables
  • Index-Organized Tables (IOT)
  • Clustered tables
  • Temporary Tables
  • Datatype selection for SQL performance
  • Constraints vs. Triggers
  • Table Compression
  • Multiple Blocksize Support
  • The NOLOGGING Option
  • Re-organizing and shrinking tables
  • Statistics
  • Understand the importance of statistics
  • Object statistics
  • System statistics
  • Dictionary and fixed objects statistics
  • Build histograms
  • Type and purpose of histograms
  • Extended (or “column group”) statistics
  • Use dynamic sampling
  • Manage SQL directives
SQL execution plan stability
  • Learn how to stabilize execution plans
  • Explain the adaptive reoptimization processes
  • Statistics feedback
  • Adaptive execution plans
  • Contrast SQL Directives with SQL Profiles
  • Understand the importance of bind variables
  • Impact of bind variables on parsing and the library cache
  • Use of adaptive cursor sharing
The Advisors
  • Review the Management Packs and the AWR
  • The Automatic Database Diagnostic Monitor
  • SQL Tuning Advisor
  • The SQL Access Advisor
  • The Autotask tuning advice functionaility
  • SQL Profiles
Real Application Testing
  • The issues of realistic testing
  • The SQL Performance Analyzer
  • Database Replay
  • Scenarios for using Real Application Testing
Partitioning
  • Why to use partition: performance, manageability, scalability
  • Impact on memory and disc IO
  • Partitioning strategies: range, hash, list
  • Single level and composite partitioning
  • Partition tables, indexes, or both
  • Performance tuning aspects: partition pruning, partition-wise joins
Parallel operations
  • When parallel execution is helpful
  • When and how to use parallel query
  • Parallel automatic tuning features
  • Parallel DML and parallel DDL
  • Parallel execution plans
Common performance issues
  • What actually matters? Response time.
  • The tuning methodology
  • Oracle's top ten performance issues list
Conclusion
Request Pricing for Oracle Database Performance Tuning
Lecture percentage

50%

Lecture/Demo

Lab percentage

50%

Lab

Course Number:

ORC-402

Duration:

4 Days

Prerequisites:

All students must have an understanding of Oracle database and instance architecture, familiarity with SQL and basic PL/SQL, and be able to work with Linux command-line tools.

Training Materials:

All Oracle training students receive comprehensive courseware and a related textbook.

Software Requirements:

  • Intel dual core i5 or faster processor on a 64-bit operating system with at least 8 GB RAM
  • A complete installation of Oracle
  • Please contact us for detailed setup instructions if you have purchased this class.

Contact Us:

Accelebrate’s training classes are available for private groups of 3 or more people at your site or online anywhere worldwide.

Don't settle for a "one size fits all" public class! Have Accelebrate deliver exactly the training you want, privately at your site or online, for less than the cost of a public class.

For pricing and to learn more, please contact us.

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