Oracle Database 19c: SQL skaņošanas darbnīca

Kurss ir paredzēts arhitektiem un izstrādātājiem.

• Interpretēt izpildes plānus un dažādus veidus, kādos var piekļūt datiem.
• Atšifrēt, izlemt un pēc tam pielāgot SQL kodu.
• Izmantot dažādas pielāgošanas tehnikas.
• Izmantot saistīto mainīgo priekšrocības, izsekot failus un izmantot dažāda veida indeksus.
• Labākai optimizācijai izmantot dažādus piekļuves ceļus.

Oracle University mācību materiāli.

1. Course Introduction

• Workshop 1: Enhancing the Performance of a SQL Query Statement

2. Introduction to SQL Tuning

• Quick Solution Strategy
• Workshop 2: Reviewing the Execution Steps of the SQL Statement
• Practice 2-1: Using SQL Developer

3. Using Application Tracing Tools

• trcsess Utility
• Workshop 3: Learn to Tune Sort Operation Using an Index in the ORDER BY Clauses
• Practice 3-1: Tracing Applications (Part 01)
• Practice 3-1: Tracing Applications (Part 02)

4. Optimizer Fundamentals

• Query Estimator: Selectivity and Cardinality
• Plan Generator
• Workshop 4: Identifying and Tuning a Poorly Written SQL Statement
• Practice 4-1: Understanding Optimizer Decisions (Optional)

5. Generating and Displaying Execution Plans

• AUTOTRACE
• Automatic Workload Repository
• Workshop 5: Effects of Changing the Column Order in a Composite Index
• Practice 5-1: Extracting an Execution Plan by Using SQL Developer
• Practice 5-2: Extracting Execution Plans

6. Interpreting Execution Plans and Enhancements

• Workshop-6: Using Information in the 10053 File to Tune a SQL Statement
• Practice 6-1: Using Dynamic Plans

7. Optimizer: Table and Index Access Paths

• Indexes: Overview
• Bitmap Indexes
• Common Observations
• Workshop 7: Understanding the Optimizer’s Decision
• Practice 7-1: Using Different Access Paths (Part 01)
• Practice 7-1: Using Different Access Paths (Part 02)
• Practice 7-1: Using Different Access Paths (Part 03)
• Practice 7-1: Using Different Access Paths (Part 04)

8. Optimizer: Join Operators

• Workshop 8: Tuning Strategy
• Practice 8: Using Join Paths

9. Other Optimizer Operators

• Workshop 9: Using SQL Plan Baseline to Manage a Better Execution Plan
• Practice 9-1: Using the Result Cache
• Practice 9-2: Using Other Access Paths (Optional)

10. Introduction to Optimizer Statistics Concepts

• Column Statistics: Histograms
• Session-Specific Statistics for Global Temporary Tables
• Practice 10-1: Index Clustering Factor
• Practice 10-2: Creating Expression Statistics
• Practice 10-3: Enabling Automatic Statistics Gathering Optional (Part 01)
• Practice 10-3: Enabling Automatic Statistics Gathering Optional (Part 02)
• Practice 10-4: Using System Statistics (Optional)

11. Using Bind Variables

• Cursor Sharing Enhancements
• Practice 11-1: Using Adaptive Cursor Sharing
• Practice 11-2: Using CURSOR_SHARING (Optional)

12. SQL Plan Management

• Configuring SQL Plan Management
• Possible SQL Plan Manageability Scenarios
• Practice 12-1: Using SQL Plan Management SPM (Part 01)
• Practice 12-1: Using SQL Plan Management SPM (Part 02)

13. Workshops