Description: This course provides students with an introduction to application and database tuning. Students will learn how the cost-based optimizer works. A discussion of basic Oracle architecture will provide the foundation for understanding both SQL statement and system performance. Students will use EXPLAIN PLAN and AUTOTRACE for evaluating execution strategies and the DBMSSTATS package for gathering optimizer statistics. Also discussed is how to influence the behavior of the optimizer with hints, physical schema changes, and alternative SQL statement syntax. Factors that affect overall system performance such as the buffer cache, SGA structures, and waits due to locks and latches are presented.
Hands-on workshops provide students with a solid understanding of the concepts presented in the lectures.
This course can be taught for any Oracle version.
Tuning Overview
Oracle Architecture
ALERT Logs, Trace Files, and Events
SQL Statement Processing
SQL Statement Tuning
Indexes
Cost-Based Optimizer
Influencing the Optimizer
Tuning Tools
SQL Plan Management
Locking and Concurrency
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