Thank you for sending your enquiry! One of our team members will contact you shortly.
Thank you for sending your booking! One of our team members will contact you shortly.
Course Outline
Application Tuning Methodology
Database and Instance Architecture
- Server processes
- Memory structures (SGA, PGA)
- Parsing and shared cursors
- Data files, log files, and parameter files
Execution Plan Analysis
- Hypothetical plans (EXPLAIN PLAN, SQLPlus Autotrace, XPlan)
- Actual execution plans (V$SQL_PLAN, XPlan, AWR)
Performance Monitoring and Bottleneck Identification
- Monitoring instance status via system dictionary views
- Historical dictionary monitoring
- Application tracing (SQLTrace, TkProf, TreSess)
Optimization Process
- Characteristics of cost-based optimization and regulation
- Determination of optimization strategies
Managing the Cost-Based Optimizer
- Session and instance parameters
- Hints
- Query plan patterns
Statistics and Histograms
- Impact of statistics and histograms on performance
- Methods for collecting statistics and histograms
- Strategies for collecting and estimating statistics
- Statistics management: blocking, copying, editing, automation of collection, and monitoring changes
- Dynamic data sampling (temporary tables, complex predicates)
- Multi-column statistics based on expressions
- System statistics
Logical and Physical Database Structure
- Tablespaces
- Segments
- Extents
- Blocks
Data Storage Methods
- Physical aspects of tables
- Temporary tables
- Index-organized tables
- External tables
- Partitioned tables (range, list, hash, composite)
- Physical reorganization of tables
Materialized Views and Query Rewrite Mechanism
Data Indexing Methods
- Building B-TREE indexes
- Index characteristics
- Index types: unique, composite, function-based, inverse
- Compressed indexes
- Index rebuild and merge operations
- Virtual indexes
- Private and public indexes
- Bitmap indexes and joins
Case Study: Full Table Scans
- Impact of table placement and block reads on performance
- Data loading via conventional and direct path methods
- Order of predicates
Case Study: Index-Based Data Access
- Index access methods (UNIQUE SCAN, RANGE SCAN, FULL SCAN, FAST FULL SCAN, MIN/MAX SCAN)
- Use of function-based indexes
- Index selectivity (Clustering Factor)
- Composite indexes and SKIP SCAN
- NULL values and indexes
- Index-organized tables (IOT)
- Impact of indexes on DML operations
Case Study: Sorting Operations
- Memory-based sorting
- Index-based sorting
- Linguistic sorting
- Effect of data distribution on sorting (Clustering Factor)
Case Study: Joins and Subqueries
- Join algorithms: MERGE, HASH, NESTED LOOP
- Joins in OLTP and OLAP systems
- Join order determination
- Outer Joins
- Anti-join
- Semi-joins
- Simple subqueries
- Correlated subqueries
- Views and the WITH clause
Other Cost-Based Optimizer Operations
- Buffer Sort
- INLIST
- VIEW
- FILTER
- Count Stop Key
- Result Cache
Distributed Queries
- Reading query plans for DB links
- Selecting the driving site
Parallel Processing
Requirements
- Proficiency in SQL basics and familiarity with the Oracle database environment (completion of training in Oracle 11g - Native SQL for Programmers - Workshops is preferred)
- Practical experience working with Oracle
28 Hours
Testimonials (2)
1. I liked the trainer's style of presenting and the patience to explain. 2. I liked that the trainer answered our side questions, even the ones that took the discussion a bit farther from the presentation, which showed flexibility. 3. I liked that there was a practical lab, not just a theoretical part. 4. I liked that it was online.
Roxana - DB Global Technology
Course - Oracle 11g - Application Tuning - Workshop
Trainer expertise on SQL tuning
