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Oracle 12c SQL Performance Tuning


StayAhead Training

Summary

Price
£1,074 inc VAT
Study method
Classroom
Duration
2 Days, Full-time
Qualification
No formal qualification
Additional info
  • Tutor is available to students

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Location & dates

Location
Start date
End date
16/12/2019
18/12/2019

End date: 18/12/2019

Additional info: Start at 09:30

Address
6 Long Lane
Barbican
LONDON
Greater London
EC1A9HF

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. This course is suitable for users of Oracle Database 11g and Oracle Database 12c.

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

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 Oracle Database 11g or 12c.

Description

Course Objectives

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

Course Contents - DAY 1 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

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 OPTIMISER

  • The SQL Optimiser
  • Statement Transformation
  • The Optimiser_Mode Initialisation Parameter
  • Cost Based Optimiser
  • Managing Statistics with DBMS_STATS
  • Correlated Column Issues
  • Automatic Statistics Gathering
  • Dynamic Statistics
  • Optimiser Adaptive Parameters
  • 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
  • Composite Indexes
  • Descending Indexes
  • Access Paths with Indexes
  • Index Scans
  • Conditions That Stop Indexes Being Used
  • Parameters that Affect Optimiser Index Choice

DAY 2 Session 6: ADVANCED INDEXES

  • Bitmap Indexes
  • Key Compressed Indexes
  • Index Organized Tables
  • Function Based Indexes
  • Invisible Indexes

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 Optimisation with Different Access Paths

Session 8: SQL TUNING ADVISER USING SQL DEVELOPER

  • Overview of the DBMS_SQL_TUNE Package
  • Using the SQL Tuning Adviser 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
  • Optimisation 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 Miscellaneous PL/SQL Issues

Requirements

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

Pre-Requisite Courses

  • Oracle SQL

Follow-On Courses

  • Oracle PL/SQL
  • Oracle Reports
  • Oracle Forms - Part I

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.

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