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Oracle 19c SQL Performance Tuning

StayAhead Training
Course summary
2 days
895 GBP excl. VAT
Professional Training
Next available date: 23/11/2020 09:30 - Online courses
Course Dates
London
23/11/2020 09:30 
895 GBP
25/01/2021 09:30 
895 GBP
22/03/2021 09:30 
895 GBP
Online courses
23/11/2020 09:30 
895 GBP
25/01/2021 09:30 
895 GBP
22/03/2021 09:30 
895 GBP

Course description

This Oracle 19c 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.

Versions supported 12cR2, 18c, 19c.

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
Who will the Course Benefit?

The Oracle 19c 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.

Course Objectives

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

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
  • Oracle SQL Advanced
Follow-On Courses
  • Oracle PL/SQL
  • Oracle Program with PL/SQL
  • Oracle Advanced PL/SQL
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.
Oracle 19c SQL Performance Tuning Training Course

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
  • 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 19c SQL Performance Tuning Training Course

Course Contents - DAY 2

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

Expenses

£895.00

Continuing Studies

Follow on courses: Oracle PL/SQL, Oracle Program with PL/SQL, Oracle Advanced PL/SQL

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StayAhead Training: Linux, Oracle, SQL, Professional IT Courses

Live Virtual Training with our live Course Instructor is offered for all our courses.  Take the course from the comfort of your office, home or any location of your choice, nationally and internationally.  Public schedule and Closed Company courses.  Flexibility...


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6 Long Lane, Barbican
EC1A 9HF London

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