Skip to content

Oracle 19c courses

Enliten IT partner with StayAhead Training to deliver an extensive range of Oracle 19c courses targeted at ensuring delegates, from programmers to administrators, can perform their job roles successfully.  We’ll teach you how to administer, configure, secure, backup, manage storage and maintain databases.  Oracle SQL reporting courses are also available.

Other, not so popular, Oracle training courses (e.g. Oracle e-Business Suite R12) are also available so if you don’t find what you are looking for in the list below then please contact us.

Note: All Oracle 19c workshops can be modified or tailored for delivery, at your own offices, anywhere within the UK.

ORACLE 19c SQL Performance Tuning logo
Home > Computer Training Courses > Technical courses > Oracle 19c courses > ORACLE 19c SQL Performance Tuning

ORACLE 19c SQL Performance Tuning

2 days

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.

Delegates will practice:

  • 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
Download PDF Book now

What will you learn?

On completion of this ORACLE 19c SQL Performance Tuning course delegates will have will have the knowledge to monitor and tune an Oracle database application.



SQL programmers, application developers, designers and technical support professionals.

Course Contents


  • 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


  • 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


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


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


  • 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


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


  • 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


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


  • Sequence Caching
  • Views
  • View Merging
  • Inline Views


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


  • Tips for Avoiding Problematic Queries
  • Oracle 12.2 SQL*Plus Performance Setting Options
  • Array Size
  • The Shared Pool
  • Intelligent Cursor Sharing
  • Virtual Columns
  • The WITH Clause
  • Bind Variable Usage
  • Result Caching
  • Approximate Query Processing
  • Reduce Cursor Invalidations for DDLs
  • Some PL/SQL Performance Issues

Course Materials

Enliten IT will provide each delegate with a workbook and other useful reference materials where applicable.


A working knowledge of Oracle SQL is required.

Additional Information

Enliten IT reserves the right to modify course content and materials as required in the interests of continuous course improvement, at any time, without notification.

Note:  This ORACLE 19c SQL Performance Tuning course is run on a public schedule or can be taken as a private in-house company course UK wide.   For pricing and availability just pick up the phone and call us on 0845 1085481.