Code
BCTDEV017
Duration
3 days
Price
900 €*
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DescriptionWhat we offer

This course is developed by Brain Concert in order for you to learn and practice about Oracle SQL tuning and how to apply tuning techniques to your SQL code. Learn the different ways in which data can be accessed efficiently.

ObjectivesWhat you learn

  • Modify a SQL statement to perform at its best
  • Identify poorly performing SQL
  • Trace an application through its different levels of the application architecture
  • Understand how the Query Optimizer makes decisions about how to access data
  • Define how optimizer statistics affect the performance of SQL
  • List the possible methods of accessing data, including different join methods

TopicsThe best for you

Introduction

  • Course Objectives, Course Agenda and Appendixes Used in this Course
  • Audience and Prerequisites
  • Sample Schemas Used in the Course
  • Class Account Information
  • SQL Environments Available in the Course
  • Workshops, Demo Scripts, and Code Example Scripts
  • Appendices in the Course

Introduction to SQL Tuning

  • SQL Tuning Session
  • SQL Tuning Strategies
  • Development Environments: Overview
  • SQLTXPLAIN (SQLT) Diagnostic Tool

Using Application Tracing Tools

  • Using the SQL Trace Facility: Overview
  • Steps Needed Before Tracing
  • Available Tracing Tools: Overview
  • The trcsess Utility
  • Formatting SQL Trace Files: Overview

Understanding Basic Tuning Techniques

  • Developing Efficient SQL statement
  • Scripts Used in This Lesson
  • Table Design
  • Index Usage
  • Transformed Index
  • Data Type Mismatch
  • NULL usage
  • Tune the ORDER BY Clause

Optimizer Fundamentals

  • SQL Statement Representation
  • SQL Statement Processing
  • Why Do You Need an Optimizer?
  • Components of the Optimizer
  • Query Transformer
  • Cost-Based Optimizer
  • Adaptive Query Optimization
  • Optimizer Features and Oracle Database Releases

Generating and Displaying Execution Plans

  • Execution Plan?
  • The EXPLAIN PLAN Command
  • Plan Table
  • AUTOTRACE
  • V$SQL_PLAN View
  • Automatic Workload Repository
  • SQL Monitoring

Interpreting Execution Plans and Enhancements

  • Interpreting a Serial Execution Plan
  • Adaptive Optimizations

Optimizer: Table and Index Access Paths

  • Row Source Operations
  • Main Structures and Access Paths
  • Full Table Scan
  • Indexes
  • Common Observations

Optimizer Join Operations

  • Join Methods
  • Join Types

Other Optimizer Operators

  • SQL operators
  • Other N-Array Operations
  • Result Cache operators

Introduction to Optimizer Statistics Concepts

  • Optimizer Statistics
  • Types of Optimizer Statistics
  • Gather and Manage Optimizer Statistics: Overview

Using Bind Variables

  • Cursor Sharing and Different Literal Values
  • Cursor Sharing and Bind Variables

SQL Plan Management

  • Maintaining SQL Performance
  • SQL Plan Management

Exercises

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PrerequisitesWhat should you know

  • Familiarity with database architecture
  • Knowledge of SQL and PL/SQL
  • Oracle Database: Introduction to SQL Ed 1.1

AudienceWho should attend

  • Data Warehouse Developer
  • Application Developers
  • Developer
  • Support Engineer
  • PL/SQL Developer