Durasi : 5 hari
Description:
This Oracle Database 11g Performance Tuning training starts with an unknown database that requires tuning. You’ll then learn the steps a DBA performs to identify problem areas, diagnose common problems and fix them.
Learn To:
• Describe Oracle tuning methodology.
• Use Oracle supplied tools for monitoring and diagnosing SQL and Instance tuning issues.
• Use database advisors to correct performance problems proactively.
• Identify problem SQL statements & tune SQL performance problems.
• Monitor the Instance Performance using Enterprise Manager.
• Tune instance components, primarily using Instance parameters
Prerequisites:
• Oracle 11g: Introduction to SQL
• Oracle 11g: Administration Workshop I
Course Topics:
Introduction
• This lesson introduces the Performance Tuning course objectives and agenda
Basic Tuning Tools
• Monitoring tools overview
• Enterprise Manager
• V$ Views, Statistics and Metrics
• Wait Events
Using Automatic Workload Repository
• Managing the Automatic Workload RepositoryCreate AWR Snapshots
• Real Time SQL Monitoring
Defining Problems
• Defining the Problem
• Limit the Scope & Setting the Priority
• Top SQL Reports
• Common Tuning Problems & Tuning During the Life Cycle
• ADDM Tuning Session
• Performance Versus Business Requirements
• Performance Tuning Resources & Filing a Performance Service Request
• Monitoring and Tuning Tools: Overview
Using Metrics and Alerts
• Metrics, Alerts, and Baselines
• Limitation of Base Statistics & Typical Delta Tools
• Oracle Database 11g Solution: Metrics
• Benefits of Metrics
• Viewing Metric History Information & Using EM to View Metric Details
• Statistic Histograms & Histogram Views
• Database Control Usage Model & Setting Thresholds
• Server-Generated Alerts, Creating and Testing an Alert & Metric and Alert Views
Using AWR Based Tools
• Automatic Maintenance Tasks
• ADDM Performance Monitoring
• Active Session History: Overview
Identifying Problem SQL Statements
• SQL Statement Processing Phases & Role of the Oracle Optimizer
• Identifying Bad SQL, Real Time SQL & TOP SQL Reports
• What Is an Execution Plan? Methods for Viewing Execution Plans & Uses of Execution Plans
• DBMS_XPLAN Package: Overview & EXPLAIN PLAN Command
• Reading an Execution Plan, Using the V$SQL_PLAN View & Querying the AWR
• SQL*Plus AUTOTRACE & SQL Trace Facility
• How to Use the SQL Trace Facility
• Generate an Optimizer Trace
Influencing the Optimizer
• Functions of the Query Optimizer, Selectivity, Cardinality and Cost & Changing Optimizer Behavior
• Using Hints, Optimizer Statistics & Extended Statistics
• Controlling the Behavior of the Optimizer with Parameters
• Enabling Query Optimizer Features & Influencing the Optimizer Approach
• Optimizing SQL Statements, Access Paths & Choosing an Access Path
• Join & Sort Operations
• How the Query Optimizer Chooses Execution Plans for Joins
• Reducing the Cost
Using SQL Performance Analyzer
• Real Application Testing: Overview & Use Cases
• SQL Performance Analyzer: Process & Capturing the SQL Workload
• Creating a SQL Performance Analyzer Task & SPA (NF Lesson 9) DBMS_SQLTUNE.CREATE_TUNING_TASK
• Optimizer Upgrade Simulation & SQL Performance Analyzer Task Page
• Comparison Report & Comparison Report SQL Detail
• Tuning Regressing Statements & Preventing Regressions
• Parameter Change Analysis & Guided Workflow Analysis
• SQL Performance Analyzer: PL/SQL Example & Data Dictionary Views
SQL Performance Management
• Maintaining SQL Performance and Optimizer Statistics & Automated Maintenance Tasks
• Statistic Gathering Options & Setting Statistic Preferences
• Restore Statistics
• Deferred Statistics Publishing: Overview & Example
• Automatic SQL Tuning: Overview
• SQL Tuning Advisor: Overview
• Using the SQL Access Advisor
• SQL Plan Management: Overview
Tuning the Shared Pool
• Shared Pool Architecture & Operation
• The Library Cache & Latch and Mutex
• Diagnostic Tools for Tuning the Shared Pool
• Avoiding Hard & Soft Parses
• Sizing the Shared Pool & Avoiding Fragmentation
• Data Dictionary Cache & SQL Query Result Cache
• UGA and Oracle Shared Server
• Large Pool & Tuning the Large Pool
Tuning the Buffer Cache
• Oracle Database Architecture: Buffer Cache
• Database Buffers
• Buffer Hash Table for Lookups
• Working Sets
• Buffer Cache Tuning Goals and Techniques
• Buffer Cache Performance Symptoms & Solutions
• Automatically Tuned Multiblock Reads
• Flushing the Buffer Cache (for Testing Only)
Tuning PGA and Temporary Space
• SQL Memory Usage & Performance Impact
• SQL Memory Manager
• Configuring Automatic PGA Memory & Setting PGA_AGGREGATE_TARGET Initially
• Monitoring & Tuning SQL Memory Usage
• PGA Target Advice Statistics & Histograms
• Automatic PGA and Enterprise Manager & Automatic PGA and AWR Reports
• Temporary Tablespace Management: Overview & Monitoring Temporary Tablespace
• Temporary Tablespace Shrink & Tablespace Option for Creating Temporary Table
Automatic Memory Management
• Oracle Database Architecture, Dynamic SGA & Memory Advisories
• Granule & Manually Adding Granules to Components
• Increasing the Size of an SGA Component, SGA Sizing Parameters & Manually Resizing Dynamic SGA Parameters
• Automatic Shared Memory Management & Memory Broker Architecture
• Behavior of Auto-Tuned & Manually TunedSGA Parameters
• Using the V$PARAMETER View & Resizing SGA_TARGET
• Disabling, Configuring & Monitoring Automatic Shared Memory Management (ASMM)
• Automatic Memory Management
Tuning Segment Space Usage
• Space and Extent Management & Locally Managed Extents
• How Table Data Is Stored & Anatomy of a Database Block
• Minimize Block Visits
• The DB_BLOCK_SIZE Parameter
• Small & Large Block Size: Considerations
• Block Allocation, Free Lists & Block Space Management with Free Lists
• Automatic Segment Space Management
• Migration and Chaining, Shrinking Segments & Table Compression: Overview
Tuning I/O
• I/O Architecture, File System Characteristics, I/O Modes & Direct I/O
• Bandwidth Versus Size & Important I/O Metrics for Oracle Databases
• I/O Calibration and Enterprise Manager, I/O Calibration and the PL/SQL Interface & I/O Statistics and Enterprise Manager
• Stripe and Mirror Everything
• Using RAID
• I/O Diagnostics
• Database I/O Tuning
• What Is Automatic Storage Management?