Course description
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.
Exercises and examples are used throughout the course to give practical hands-on experience with the techniques covered.
Versions supported 12cR2, 18c, 19c.
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 an Oracle Database.
Course ObjectivesTo provide the skills needed to monitor and tune an Oracle database application.
Upcoming start dates
Suitability - Who should attend?
A working knowledge of SQL is required. This can be obtained by attendance on the pre-requisite Oracle SQL course.
Experience to the level as demonstrated in these courses is recommended:
- Oracle SQL
- Oracle SQL Advanced
Training Course Content
Oracle 12c SQL Performance Tuning Training Course
Course Contents - DAY 1
Course Introduction- Administration and Course Materials
- Course Structure and Agenda
- Delegate and Trainer Introductions
- 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
- Dynamic Statistics
- Adaptive Optimization
- Transferring Statistics between Databases
- 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
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
- 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_SQLTUNE Package
- Using the SQL Tuning Advisor with SQL Developer
- Sequence Caching
- Views
- View Merging
- Inline Views
- The WITH Clause
- 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
- SQL Performance Settings Options
- Array Size
- The Shared Pool
- Intelligent Cursor Sharing
- Bind Variable Usage
- Virtual Columns
- Result Caching
- Approximate Query Processing
- Some PL/SQL Performance Issues
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Continuing Studies
Further Learning
- Oracle PL/SQL
- Oracle Program with PL/SQL
- Oracle Advanced PL/SQL
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