Oracle 12c SQL Performance Tuning

Course Code: O12CSPT

Duration: 2 days

 
 

Oracle 12c SQL Performance Tuning Course Overview

This Oracle 12c SQL Performance Tuning course introduces the delegate to the main concepts of Oracle SQL performance tuning. It is designed to give delegates practical experience in analysing and tuning the performance of SQL.

Exercises and examples are used throughout the course to give practical hands-on experience with the techniques covered.

Versions supported 12c, 18c, 19c.

Course Objectives

To provide the skills needed to monitor and tune an Oracle database application.

Who will the Course Benefit?

The Oracle 12c SQL Performance Tuning course is designed for SQL programmers, application developers, designers and technical support professionals who are required to tune the performance of an Oracle application running under an Oracle Database.

Skills Gained

The delegate will learn and acquire skills as follows:

  • Selecting an Appropriate SQL Tuning Approach
  • Tuning Database Applications for Optimal Performance
  • Managing Statistics
  • Creating and Using Indexes
  • Structuring SQL Statements for Performance
  • Examining and Interpreting the Execution Plan of a SQL Statement using EXPLAIN PLAN
  • Examining the Efficiency of SQL Statements using SQL Trace and Autotrace
  • Using the SQL Tuning Advisor
  • Identifying SQL Statements that Perform Badly
  • Using Hints to Influence Execution Plan
  • Identifying Unused Indexes

Oracle 12c SQL Performance Tuning Training Course

Course Introduction

  • Administration and Course Materials
  • Course Structure and Agenda
  • Delegate and Trainer Introductions

Session 1: INTRODUCTION TO ORACLE PERFORMANCE TUNING

  • Overview of Oracle Database Tuning
  • Application Developer Tuning Responsibilities
  • Oracle DBA Tuning Responsibilities
  • Oracle Tuning Process
  • Plan a Routine Monitoring Regime
  • Setting Suitable Goals
  • Syntax Considerations

Session 2: TOOLS FOR EVALUATING SQL STATEMENTS

  • Overview of SQL Statement Tuning
  • Tools to Assist in SQL Tuning
  • Use Explain Plan, Autotrace and SQL Trace to Examine the Execution of a SQL Statement
  • Interpreting a SQL Trace

Session 3: THE SQL OPTIMIZER

  • The SQL Optimizer
  • Statement Transformation
  • The Optimizer_Mode Initialization Parameter
  • Cost Based Optimizer
  • Managing Statistics with DBMS_STATS
  • Correlated Column Issues
  • Automatic Statistics Gathering
  • Optimizer Adaptive Parameters
  • Dynamic Statistics
  • Online Statistics Gathering for Bulk Loads

Session 4: SORTS

  • How Oracle Processes Sorts
  • Temporary Disk Space Assignment
  • SQL Operations that Use Sorts

Session 5: INDEXES

  • Index Overview
  • Selecting Suitable Columns for an Index
  • B*Tree Indexes
  • Rebuild an Index
  • Create Multiple Indexes on the Same Column
  • Composite Indexes
  • Descending Indexes
  • Access Paths with Indexes
  • Index Scans
  • Conditions That Stop Indexes Being Used
  • Parameters that Affect Optimizer Index Choice

Oracle 12c SQL Performance Tuning Training Course

Session 6: ADVANCED INDEXES

  • Bitmap Indexes
  • Key Compressed Indexes
  • Index Organized Tables
  • Function Based Indexes
  • Invisible Indexes
  • Table Partitioning
  • Serial Direct Path Reads
  • Advanced Index Compression

Session 7: JOIN OPERATIONS

  • Understand Access Paths
  • Joining Tables
  • Nested Loops Join
  • Merge Join
  • Cluster Join
  • Hash Join
  • Anti Join and Semi Join
  • Outer Joins
  • Star Join
  • Improve Optimization with Different Access Paths

Session 8: SQL TUNING ADVISOR USING SQL DEVELOPER

  • Overview of the DBMS_SQL_TUNE Package
  • Using the SQL Tuning Advisor with SQL Developer

Session 9: SEQUENCES AND VIEWS

  • Sequence Caching
  • Views
  • View Merging
  • Inline Views

Session 10: USING HINTS

  • Using Hints to Influence Execution Plan
  • Optimization Mode and Goals
  • Access Methods
  • Query Transformations
  • Join Orders
  • Join Operations
  • Hint Examples

Session 11: MISCELLANEOUS

  • Tips for Avoiding Problematic Queries
  • SQL Performance Settings Options
  • Array Size
  • The Shared Pool
  • The WITH Clause
  • Bind Variable Usage
  • Result Caching
  • Approximate Query Processing
  • Some PL/SQL Performance Issues
Notes:
  • Course technical content is subject to change without notice.
  • Course content is structured as sessions, this does not strictly map to course timings. Concepts, content and practicals often span sessions.

Requirements

A working knowledge of SQL is required. This can be obtained by attendance on the pre-requisite Oracle SQL course.

Pre-Requisite Courses

Course Reviews

Excellent and happy to respond to questions trainer, and pointedly happy to field questions about individual course attendees production environments, this means that the course is more relevant and people can use real world scenarios to further learning. Excellent skillset and very knowledgeable. I will return for another course when my career requires it.

Gregg - Infrastructure Manager - IT


Great course. I always wanted to know more about Tuning and know I feel I know the full breadth of the subject. I look forward to going back to the office and examining my SQL queries with more confidence.

Paul - Analyst / Programmer - Finance


Very good course that has been taught very well

Lee - Application Programmer - Utilities


Public Scheduled Events

Classroom & Live Virtual Instructor-Led Training

Duration: 2 days

Price: £895.00 exc. VAT 


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13 Dec 2021
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