This course is specially design for Application Developers, Data Warehouse Developer, Developer, PL/SQL Developer and Support Engineer

This program will be conducted with interactive lectures, PowerPoint presentations, discussions and practical exercises

Upon completion of this program, participants should be able to :

• 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

• Familiarity with database architecture
• Knowledge of SQL and PL/SQL
• Oracle Database: Introduction to SQL
• Recommended Related Training Courses:
• Using Java - for PL/SQL and Database Developers
• This Java for PL/SQL and Developers training teaches you to access Oracle Database using JDBC, UCP, Java stored procedures and SQLJ technologies. Learn to create, load, resolve and publish Java classes in the Database and more.

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

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

• 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

• 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

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

• Interpreting a Serial Execution Plan
• Adaptive Optimizations

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

• Join Methods
• Join Types

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

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

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

• Maintaining SQL Performance
• SQL Plan Management