Dedication
by Bill Padfield, Darl Kuhn, Sam R. Alapati
Oracle Database 11g Performance Tuning Recipes: A Problem-Solution Approach
- Title
- Dedication
- Contents at a Glance
- Contents
- About the Authors
- About the Technical Reviewer
- Acknowledgments
- Chapter 1: Optimizing Table Performance
- 1-1. Building a Database That Maximizes Performance
- 1-2. Creating Tablespaces to Maximize Performance
- 1-3. Matching Table Types to Business Requirements
- 1-4. Choosing Table Features for Performance
- 1-5. Avoiding Extent Allocation Delays When Creating Tables
- 1-6. Maximizing Data Loading Speeds
- 1-7. Efficiently Removing Table Data
- 1-8. Displaying Automated Segment Advisor Advice
- 1-9. Manually Generating Segment Advisor Advice
- 1-10. Automatically E-mailing Segment Advisor Output
- 1-11. Rebuilding Rows Spanning Multiple Blocks
- 1-12. Freeing Unused Table Space
- 1-13. Compressing Data for Direct Path Loading
- 1-14. Compressing Data for All DML
- 1-15. Compressing Data at the Column Level
- 1-16. Monitoring Table Usage
- Chapter 2: Choosing and Optimizing Indexes
- 2-1. Understanding B-tree Indexes
- 2-2. Deciding Which Columns to Index
- 2-3. Creating a Primary Key Index
- 2-4. Creating a Unique Index
- 2-5. Indexing Foreign Key Columns
- 2-6. Deciding When to Use a Concatenated Index
- 2-7. Reducing Index Size Through Compression
- 2-8. Implementing a Function-Based Index
- 2-9. Indexing a Virtual Column
- 2-10. Avoiding Concentrated I/O for Index
- 2-11. Adding an Index Without Impacting Existing Applications
- 2-12. Creating a Bitmap Index in Support of a Star Schema
- 2-13. Creating a Bitmap Join Index
- 2-14. Creating an Index-Organized Table
- 2-15. Monitoring Index Usage
- 2-16. Maximizing Index Creation Speed
- 2-17. Reclaiming Unused Index Space
- Chapter 3: Optimizing Instance Memory
- 3-1. Automating Memory Management
- 3-2. Managing Multiple Buffer Pools
- 3-3. Setting Minimum Values for Memory
- 3-4. Monitoring Memory Resizing Operations
- 3-5. Optimizing Memory Usage
- 3-6. Tuning PGA Memory Allocation
- 3-7. Configuring the Server Query Cache
- 3-8. Managing the Server Result Cache
- 3-9. Caching SQL Query Results
- 3-10. Caching Client Result Sets
- 3-11. Caching PL/SQL Function Results
- 3-12. Configuring the Oracle Database Smart Flash Cache
- 3-13. Tuning the Redo Log Buffer
- Chapter 4: Monitoring System Performance
- 4-1. Implementing Automatic Workload Repository (AWR)
- 4-2. Modifying the Statistics Interval and Retention Periods
- 4-3. Generating an AWR Report Manually
- 4-4. Generating an AWR Report via Enterprise Manager
- 4-5. Generating an AWR Report for a Single SQL Statement
- 4-6. Creating a Statistical Baseline for Your Database
- 4-7. Managing AWR Baselines via Enterprise Manager
- 4-8. Managing AWR Statistics Repository
- 4-9. Creating AWR Baselines Automatically
- 4-10. Quickly Analyzing AWR Output
- 4-11. Manually Getting Active Session Information
- 4-12. Getting ASH Information from Enterprise Manager
- 4-13. Getting ASH Information from the Data Dictionary
- Chapter 5: Minimizing System Contention
- 5-1. Understanding Response Time
- 5-2. Identifying SQL Statements with the Most Waits
- 5-3. Analyzing Wait Events
- 5-4. Understanding Wait Class Events
- 5-5. Examining Session Waits
- 5-6. Examining Wait Events by Class
- 5-7. Resolving Buffer Busy Waits
- 5-8. Resolving Log File Sync Waits
- 5-9. Minimizing read by other session Wait Events
- 5-10. Reducing Direct Path Read Wait Events
- 5-11. Minimizing Recovery Writer Waits
- 5-12. Finding Out Who's Holding a Blocking Lock
- 5-13. Identifying Blocked and Blocking Sessions
- 5-14. Dealing with a Blocking Lock
- 5-15. Identifying a Locked Object
- 5-16. Resolving enq: TM Lock Contention
- 5-17. Identifying Recently Locked Sessions
- 5-18. Analyzing Recent Wait Events in a Database
- 5-19. Identifying Time Spent Waiting Due to Locking
- 5-20. Minimizing Latch Contention
- 5-21. Managing Locks from Oracle Enterprise Manager
- 5-22. Analyzing Waits from Oracle Enterprise Manager
- Chapter 6: Analyzing Operating System Performance
- 6-1. Detecting Disk Space Issues
- 6-2. Identifying System Bottlenecks (vmstat)
- 6-3. Identifying System Bottlenecks (Solaris)
- 6-4. Identifying Top Server-Consuming Resources (top)
- 6-5. Identifying CPU and Memory Bottlenecks (ps)
- 6-6. Identifying I/O Bottlenecks
- 6-7. Identifying Network-Intensive Processes
- 6-8. Troubleshooting Database Network Connectivity
- 6-9. Mapping a Resource-Intensive Process to a Database Process
- 6-10. Terminating a Resource-Intensive Process
- Chapter 7: Troubleshooting the Database
- 7-1. Determining the Optimal Undo Retention Period
- 7-2. Finding What's Consuming the Most Undo
- 7-3. Resolving an ORA-01555 Error
- 7-4. Monitoring Temporary Tablespace Usage
- 7-5. Identifying Who Is Using the Temporary Tablespace
- 7-6. Resolving the “Unable to Extend Temp Segment” Error
- 7-7. Resolving Open Cursor Errors
- 7-8. Resolving a Hung Database
- 7-9. Invoking the Automatic Diagnostic Repository Command Interpreter
- 7-10. Viewing an Alert Log from ADRCI
- 7-11. Viewing Incidents with ADRCI
- 7-12. Packaging Incidents for Oracle Support
- 7-13. Running a Database Health Check
- 7-14. Creating a SQL Test Case
- 7-15. Generating an AWR Report
- 7-16. Comparing Database Performance Between Two Periods
- 7-17. Analyzing an AWR Report
- Chapter 8: Creating Efficient SQL
- 8-1. Retrieving All Rows from a Table
- 8-2. Retrieve a Subset of Rows from a Table
- 8-3. Joining Tables with Corresponding Rows
- 8-4. Joining Tables When Corresponding Rows May Be Missing
- 8-5. Constructing Simple Subqueries
- 8-6. Constructing Correlated Subqueries
- 8-7. Comparing Two Tables to Finding Missing Rows
- 8-8. Comparing Two Tables to Finding Matching Rows
- 8-9. Combining Results from Similar SELECT Statements
- 8-10. Searching for a Range of Values
- 8-11. Handling Null Values
- 8-12. Searching for Partial Column Values
- 8-13. Re-using SQL Statements Within the Shared Pool
- 8-14. Avoiding Accidental Full Table Scans
- 8-15. Creating Efficient Temporary Views
- 8-16. Avoiding the NOT Clause
- 8-17. Controlling Transaction Sizes
- Chapter 9: Manually Tuning SQL
- 9-1. Displaying an Execution Plan for a Query
- 9-2. Customizing Execution Plan Output
- 9-3. Graphically Displaying an Execution Plan
- 9-4. Reading an Execution Plan
- 9-5. Monitoring Long-Running SQL Statements
- 9-6. Identifying Resource-Consuming SQL Statements That Are Currently Executing
- 9-7. Seeing Execution Statistics for Currently Running SQL
- 9-8. Monitoring Progress of a SQL Execution Plan
- 9-9. Identifying Resource-Consuming SQL Statements That Have Executed in the Past
- 9-10. Comparing SQL Performance After a System Change
- Chapter 10: Tracing SQL Execution
- 10-1. Preparing Your Environment
- 10-2. Tracing a Specific SQL Statement
- 10.3. Enabling Tracing in Your Own Session
- 10-4. Finding the Trace Files
- 10-5. Examining a Raw SQL Trace File
- 10-6. Analyzing Oracle Trace Files
- 10-7. Formatting Trace Files with TKPROF
- 10-8. Analyzing TKPROF Output
- 10-9. Analyzing Trace Files with Oracle Trace Analyzer
- 10-10. Tracing a Parallel Query
- 10-11. Tracing Specific Parallel Query Processes
- 10-12. Tracing Parallel Queries in a RAC System
- 10-13. Consolidating Multiple Trace Files
- 10-14. Finding the Correct Session for Tracing
- 10-15. Tracing a SQL Session
- 10-16. Tracing a Session by Process ID
- 10-17. Tracing Multiple Sessions
- 10-18. Tracing an Instance or a Database
- 10-19. Generating an Event 10046 Trace for a Session
- 10-20. Generating an Event 10046 Trace for an Instance
- 10-21. Setting a Trace in a Running Session
- 10-22. Enabling Tracing in a Session After a Login
- 10-23. Tracing the Optimizer's Execution Path
- 10-24. Generating Automatic Oracle Error Traces
- 10-25. Tracing a Background Process
- 10-26. Enabling Oracle Listener Tracing
- 10-27. Setting Archive Tracing for Data Guard
- Chapter 11: Automated SQL Tuning
- 11-1. Displaying Automatic SQL Tuning Job Details
- 11-2. Displaying Automatic SQL Tuning Advice
- 11-3. Generating a SQL Script to Implement Automatic Tuning Advice
- 11-4. Modifying Automatic SQL Tuning Features
- 11-5. Disabling and Enabling Automatic SQL Tuning
- 11-6. Modifying Maintenance Window Attributes
- 11-7. Creating a SQL Tuning Set Object
- 11-8. Viewing Resource-Intensive SQL in the AWR
- 11-9. Viewing Resource-Intensive SQL in Memory
- 11-10. Populating SQL Tuning Set from High-Resource SQL in AWR
- 11-11. Populating a SQL Tuning Set from Resource-Consuming SQL in Memory
- 11-12. Populating SQL Tuning Set with All SQL in Memory
- 11-13. Displaying the Contents of a SQL Tuning Set
- 11-14. Selectively Deleting Statements from a SQL Tuning Set
- 11-15. Transporting a SQL Tuning Set
- 11-16. Creating a Tuning Task
- 11-17. Manually Running SQL Tuning Advisor
- 11-18. Getting SQL Tuning Advice from the Automatic Database Diagnostic Monitor
- Chapter 12: Execution Plan Optimization and Consistency
- 12-1. Creating and Accepting a SQL Profile
- 12-2. Automatically Accepting SQL Profiles
- 12-3. Displaying SQL Profile Information
- 12-4. Disabling a SQL Profile
- 12-5. Dropping a SQL Profile
- 12-6. Moving a SQL Profile
- 12-7. Automatically Adding Plan Baselines
- 12-8. Creating a Plan Baseline for One SQL Statement
- 12-9. Creating Plan Baselines for SQL Contained in SQL Tuning Set
- 12-10. Altering a Plan Baseline
- 12-11. Determining If Plan Baselines Exist
- 12-12. Displaying Plan Baseline Execution Plans
- 12-13. Adding a New Plan to Plan Baseline (Evolving)
- 12-14. Disabling Plan Baselines
- 12-15. Removing Plan Baseline Information
- 12-16. Transporting Plan Baselines
- Chapter 13: Configuring the Optimizer
- 13-1. Choosing an Optimizer Goal
- 13-2. Enabling Automatic Statistics Gathering
- 13-3. Setting Preferences for Statistics Collection
- 13-4. Manually Generating Statistics
- 13-5. Locking Statistics
- 13-6. Handling Missing Statistics
- 13-7. Exporting Statistics
- 13-8. Restoring Previous Versions of Statistics
- 13-9. Gathering System Statistics
- 13-10. Validating New Statistics
- 13-11. Forcing the Optimizer to Use an Index
- 13-12. Enabling Query Optimizer Features
- 13-13. Keeping the Database from Creating Histograms
- 13-14. Improving Performance When Not Using Bind Variables
- 13-15. Understanding Adaptive Cursor Sharing
- 13-16. Creating Statistics on Expressions
- 13-17. Creating Statistics for Related Columns
- 13-18. Automatically Creating Column Groups
- 13-19. Maintaining Statistics on Partitioned Tables
- 13-20. Concurrent Statistics Collection for Large Tables
- Chapter 14: Implementing Query Hints
- 14-1. Writing a Hint
- 14-2. Changing the Access Path
- 14-3. Changing the Join Order
- 14-4. Changing the Join Method
- 14-5. Changing the Optimizer Version
- 14-6. Choosing Between a Fast Response and Overall Optimization
- 14-7. Performing a Direct-Path Insert
- 14-8. Placing Hints in Views
- 14-9. Caching Query Results
- 14-10. Directing a Distributed Query to a Specific Database
- 14-11. Gathering Extended Query Execution Statistics
- 14-12. Enabling Query Rewrite
- 14-13. Improving Star Schema Query Performance
- Chapter 15: Executing SQL in Parallel
- 15-1. Enabling Parallelism for a Specific Query
- 15-2. Enabling Parallelism at Object Creation
- 15-3. Enabling Parallelism for an Existing Object
- 15-4. Implementing Parallel DML
- 15-5. Creating Tables in Parallel
- 15-6. Creating Indexes in Parallel
- 15-7. Rebuilding Indexes in Parallel
- 15-8. Moving Partitions in Parallel
- 15-9. Splitting Partitions in Parallel
- 15-10. Enabling Automatic Degree of Parallelism
- 15-11. Examining Parallel Explain Plans
- 15-12. Monitoring Parallel Operations
- 15-13. Finding Bottlenecks in Parallel Processes
- 15-14. Getting Detailed Information on Parallel Sessions
- Index
To Valerie, Nina, and Nicholas
With love and affection
—Sam Alapati
To Heidi, Brandi, and Lisa
–Darl Kuhn
To Oyuna and Evan for putting up with me and all the evenings and
weekends spent with my computer instead of with them!!
To Carol, Gerry, Susan, Doug, Scott, Chris, Jaimie, Katie, Jenny, Jeremy, and Sean. I love my family!
—Bill Padfield
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