Tài liệu Oracle Database 10g : New Features For Administrators ppt

Oracle Database 10g : New Features For
Administrators


Oracle Database 10g: New
Features for Administrators
Volume III • Student Guide

D17079GC20
Edition 2.0
August 2005
D19871

®


Authors

Copyright © 2005, Oracle. All rights reserved.

Christine Jeal

Disclaimer

Janet Stern

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Andy Fortunak
Joel Goodman
Donna Hamby
Magnus Isaksson
Pete Jones
Pierre Labrousse
Dominique Laugraud
Stefan Lindblad

Yi Lu
Venkat Maddali
Paul Manning
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Srinivas Putrevu
Mark Ramacher
James Spiller
S Matt Taylor
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Contents
I

Introduction
Overview I-2
Today’s IT Infrastructure I-3
How DBAs Spent Their Time Before Oracle Database 10g I-4
Grid Computing I-5
Oracle Ecosystem I-6
Enterprise Grid Computing I-7
Implement One from Many I-8
Manage Many as One I-10
Readily Available Product Controls I-12
Oracle Enterprise Manager 10g Grid Control I-13
Oracle Database 10g: The Database for the Grid I-14
Suggested Additional Courses I-15
Oracle Database 10g Manageability Goals I-16
Database Management Challenges I-17
Oracle Database 10g Solution: Self-Managing Database I-18
How Oracle Database 10g DBAs Spend Their Time I-19
Further Information I-20
Suggested Schedule I-21

1

Installation
Objectives 1-2
Installation Methods 1-3
Installation: New Feature Support 1-4
Performance Enhancements to Installation 1-5
Checking the Preinstallation Requirements 1-6
Miscellaneous Installation Enhancements 1-7
Response File Improvements 1-8
CD Pack Contents 1-9
Management Options 1-10
File Storage Options 1-11
Backup and Recovery Options 1-12
Passwords 1-13
Grid Control Components 1-14
Managed Targets for Grid Control 1-16
Oracle Management Service 1-17
Oracle Management Repository 1-18
Grid Control Console: Home 1-19
Grid Control Console: Targets 1-20
Managing Very Large Grids 1-21
Summary 1-22

iii


2

Server Configuration
Objectives 2-2
Database Configuration Assistant (DBCA) Enhancements 2-3

Using Database Control for Management 2-5
SYSAUX and DBCA 2-6
Database Control: Overview 2-7
Important EM Agent Directories 2-8
Configuring Database Control 2-9
Managing Database Control Components 2-10
Database Home Page: Overview 2-11
Database Control Setup Pages 2-13
Database Control Preferences Pages 2-14
Net Services Administration Pages 2-15
Database Feature Usage: Statistics Collection 2-16
Database Feature Usage: EM Interface 2-17
Database Feature Usage: HWM Page 2-18
Policy Framework 2-19
Policy Violations Page 2-20
Manage Policy Violations Page 2-22
Rule Violation Page 2-24
Manage Policy Library Page 2-25
Simplified Initialization Parameters 2-26
Viewing Initialization Parameters 2-27
Irreversible Data File Compatibility 2-28
Enabling iSQL*Plus DBA Access 2-29
Accessing iSQL*Plus DBA from EM 2-30
Summary 2-31
Practice 2: Overview 2-32

3

Data Pump, SQL*Loader, and External Tables
Objectives 3-2

Data Pump: Overview 3-3
Data Pump: General Architecture 3-4
Data Pump Export and Import: Overview 3-5
Data Pump Export and Import: Benefits 3-6
General Implementation: Overview 3-8
Data Pump Direct Path: Considerations 3-9
Data Pump File Locations 3-10
Data Pump File Naming and Size 3-12
Data Pump Utility: Interfaces and Modes 3-13
Data Pump and Filtering 3-14
Data Pump Import Transformations 3-15
Data Pump Job Monitoring Views 3-17

iv


Database Control and Data Pump 3-18
Using EM to Monitor Data Pump Jobs 3-19
Parallel Full Export and Import: Examples 3-20
Limited Schema Export: Example 3-21
Network Mode Import: Example 3-22
Attaching to Existing Job: Example 3-23
Restarting a Stopped Job: Example 3-24
Data-Only Unload: Example 3-25
Loading Data from Flat Files by Using EM 3-26
External Table Population: Overview 3-27
External Table Population Operation 3-28
External Table Parallel Populate Operation 3-29
External Table Population: Example 3-30
External Table Projected Columns 3-31

External Table Projected Column: Examples 3-32
Summary 3-33
Practice 3: Overview 3-34
4

Database and Tablespace Data Movements
Objectives 4-2
Cross-Platform Transportable Tablespaces 4-3
Minimum Compatibility Level 4-4
Transportable Tablespace Procedure 4-5
Determining the Endian Format of a Platform 4-6
Data File Conversion: Examples 4-7
CLOB Exception 4-8
Using Database Control to Transport Tablespaces 4-9
Generating Transportable Tablespace Sets 4-10
Specifying Destination Characteristics 4-11
Specifying Conversion Information 4-12
Specifying the Files Transfer Mode 4-13
Database Transportation: Overview 4-14
Database Transportation Procedure 4-15
Database Transportation: Conversion 4-16
Database Transportation: Example 1 4-17
Database Transportation: Example 2 4-18
Database Transportation: Generated Pfile 4-19
Database Transportation: Generated SQL Script 4-20
Database Transportation: Generated RMAN Script 4-22
Database Transportation: Considerations 4-23
DBMS_TDB Package 4-24
Database Cloning Using Database Control 4-25
Transport Tablespace from Backup: Overview 4-26

Transport Tablespace from Backup: Implementation 4-27

v


Transport Tablespace from Backup: Example 4-28
Versioning Tablespaces 4-29
Versioned Tablespaces: Usage Scenarios 4-30
Tablespace Repository 4-31
CLONE_TABLESPACES 4-32
CLONE_TABLESPACES: Example 4-33
DETACH_TABLESPACES 4-34
DETACH_TABLESPACES: Example 4-35
ATTACH_TABLESPACES 4-36
ATTACH_TABLESPACES: Example 4-37
Managing a File Group Repository 4-38
File Group Repository Catalog 4-41
File Group Repository Catalog Views 4-42
File Group Repository Privileges 4-43
Privileges for Versioning Tablespaces 4-45
Summary 4-46
Practice 4: Overview 4-47
5

Automatic Management
Objectives 5-2
Oracle Database 10g Solution: Self-Managing Database 5-3
Automatic Database Diagnostic Monitor: Overview 5-4
ADDM Performance Monitoring 5-5
ADDM Methodology 5-6

Top Performance Issues Detected 5-7
Database Control and ADDM Findings 5-8
ADDM Analysis Results 5-9
ADDM Recommendations 5-10
Database Control and ADDM Task 5-11
Changing ADDM Attributes 5-12
Retrieving ADDM Reports by Using SQL 5-13
Automatic Shared Memory Management: Overview 5-14
SGA Tuning Principles 5-15
Benefits of Automatic Shared Memory Management 5-16
Automatic Shared Memory Management 5-17
SGA Advisor 5-18
Manual Configuration 5-19
Behavior of Autotuned SGA Parameters 5-20
Behavior of Manually Tuned SGA Parameters 5-21
Using the V$PARAMETER View 5-22
Resizing SGA_TARGET 5-23
Disabling Automatic Shared Memory Management 5-24
Manually Resizing Dynamic SGA Parameters 5-25
Automatic Segment Advisor: Overview 5-26

vi


AUTO_SPACE_ADVISOR_JOB 5-27
Controlling AUTO_SPACE_ADVISOR_JOB 5-28
Viewing Latest Automatic Segment Advisor Recommendations 5-29
Automatic Optimizer Statistics Collection: Overview 5-30
GATHER_STATS_JOB 5-31
Controlling GATHER_STATS_JOB 5-32

Changing the Default Schedule 5-33
Automatic Undo Retention Tuning 5-34
Automatic Checkpoint Tuning 5-35
Automatically Tuned Multiblock Reads 5-36
Summary 5-37
Practice 5: Overview 5-38
6

Manageability Infrastructure
Objectives 6-2
Oracle Database 10g Solution: Self-Managing Database 6-3
Automatic Workload Repository 6-4
Automatic Workload Repository: Overview 6-5
Automatic Workload Repository Data 6-6
Active Session History 6-7
Generate ASH Reports 6-8
Base Statistics and Metrics 6-9
Workload Repository 6-10
Statistic Levels 6-11
AWR Snapshot Sets 6-12
AWR Snapshot Purging Policy 6-13
Database Control and AWR 6-14
Generating AWR Reports 6-15
Snapshot Sets and Period Comparisons 6-16
Compare Periods: Results 6-17
Statspack and AWR 6-18
Server-Generated Alerts 6-19
Server-Generated Alerts: Overview 6-20
Alert Models Architecture 6-21
Server-Generated Alert Types 6-22

Readily Available Server-Generated Alerts 6-23
Database Control Usage Model 6-24
Database Control Interface to Alerts 6-25
Setting Alert Thresholds 6-26
Alerts Notification 6-27
Metric Details Severity History 6-28
Metric and Alert Views 6-29
PL/SQL Interface for Threshold Settings 6-30
Alert Consumption: Manual Configuration 6-31

vii


User-Defined SQL Metrics 6-32
Automatic Routine Administration Tasks 6-33
DBCA and Automated Tasks 6-34
Common Manageability Infrastructure: Advisory Framework 6-35
Advisory Framework: Overview 6-36
Typical Advisor Tuning Session 6-37
Database Control and Advisors 6-38
DBMS_ADVISOR Package 6-39
Dictionary Changes 6-40
Using PL/SQL: Example 6-41
Summary 6-42
Practice 6: Overview 6-43
7

Adaptive Thresholds and Metric Baselines
Objectives 7-2
Cyclic Nature of Workloads 7-3

Thresholds and Metric Baselines Overview: Fixed Thresholds 7-4
Thresholds and Metric Baselines Overview: Adaptive Thresholds 7-5
Metric Baselines and Thresholds Concepts 7-6
Metric Baselines and Time Groups 7-8
Enabling Metric Baselining 7-9
Activating the Moving Window Metric Baseline 7-10
Setting Adaptive Alert Thresholds 7-11
Visualizing Metric Baseline Statistics 7-12
Creating Static Metric Baselines 7-13
Time Grouping: Considerations 7-14
Metric Baseline and Adaptive Threshold: Considerations 7-15
Classification of Eligible Metrics 7-16
Metric Baseline: Normalized View 7-17
Configuring Normalization Metrics 7-19
Adaptive Thresholds and the All Metrics Page 7-20
Summary 7-21
Practice 7: Overview 7-22

8

Application Tuning
Objectives 8-2
Oracle Database 10g Solution: Self-Managing Database 8-3
Automatic Statistics Gathering 8-4
Enhanced Query Optimization 8-5
Statistics on Dictionary Objects 8-6
Dictionary Statistics: Best Practices 8-7
Miscellaneous Statistics-Related Changes 8-8
Locking Statistics 8-9
Using the DBMS_STATS Package 8-10

Automatic Statistics Collection: Considerations 8-11

viii


History of Optimizer Statistics 8-12
Managing Historical Optimizer Statistics 8-13
Managing Optimizer Statistics Using EM 8-14
DML Table Monitoring Changes 8-15
Rule-Based Optimizer Obsolescence 8-16
Automatic SQL Tuning: Overview 8-17
Application Tuning Challenges 8-18
SQL Tuning Advisor: Overview 8-19
Stale or Missing Object Statistics 8-20
SQL Statement Profiling 8-21
Plan Tuning Flow and SQL Profile Creation 8-22
SQL Tuning Loop 8-23
Access Path Analysis 8-24
SQL Structure Analysis 8-25
SQL Tuning Advisor: Usage Model 8-26
Database Control and SQL Tuning Advisor 8-27
Implementing Recommendations 8-28
DBMS_SQLTUNE Package 8-29
DBMS_SQLTUNE: Examples 8-30
Exporting or Importing SQL Profiles 8-31
Automatic SQL Tuning Categories 8-32
SQL Access Advisor: Overview 8-33
SQL Access Advisor: Usage Model 8-34
Possible Recommendations 8-35
Typical SQL Access Advisor Session 8-36

Workload Source 8-37
Recommendation Options 8-38
Reviewing Recommendations 8-40
SQL Access Advisor: Procedure Flow 8-41
Performance Monitoring Solutions 8-42
Performance Management Approach 8-43
Database Home Page 8-44
Database Performance Page 8-45
Active Sessions Waiting Pages 8-46
SQL Details 8-47
Historical Data View 8-48
Summary 8-49
Practice 8: Overview 8-50
9

Services
Objectives 9-2
Traditional Workload Dispatching 9-3
Grid Workload Dispatching 9-4
What Is a Service? 9-5

ix


High Availability of Services in RAC 9-6
Possible Service Configuration with RAC 9-7
Service Attributes 9-8
Service Types 9-9
Service Goodness 9-10
Fast Application Notification for Continuous Service 9-11

Fast Connection Failover: Overview 9-12
Load Balancing Advisory 9-13
JDBC Runtime Connection Load Balancing: Benefit 9-14
Connection Load Balancing in RAC 9-15
Load Balancing Workflow in RAC 9-16
Creating Services 9-17
Managing Services in a Single-Instance Environment 9-18
Everything Switches to Services 9-19
Using Services with Client Applications 9-20
Using Services with the Resource Manager 9-21
Services and Resource Manager with EM 9-22
Services and the Resource Manager: Example 9-23
Using Services with the Scheduler 9-24
Services and the Scheduler with EM 9-25
Services and the Scheduler: Example 9-27
Using Services with Parallel Operations 9-28
Using Services with Metric Thresholds 9-29
Changing Service Thresholds by Using EM 9-30
Services and Metric Thresholds: Example 9-31
Service Aggregation and Tracing 9-32
Top Services Performance Page 9-33
Service Aggregation Configuration 9-34
Service Aggregation: Example 9-35
trcsess Utility 9-36
Service Performance Views 9-37
Generalized Trace Enabling 9-38
Summary 9-39
Practice 9: Overview 9-40
10 System Resource Management
Objectives 10-2

Oracle Database 10g Solution: Self-Managing Database 10-3
Database Resource Manager 10-4
Switching Plans at Scheduler Window Boundaries 10-5
Setting Idle Timeouts 10-6
Switching Back to the Initial Consumer Group at the End of Call 10-7
Creating a Mapping by Using Database Control 10-9
Creating a Mapping by Using DBMS_RESOURCE_MANAGER 10-10

x


Assigning Priorities by Using DBMS_RESOURCE_MANAGER 10-11
Changes to the DBMS_RESOURCE_MANAGER Package 10-13
Using the RATIO Allocation Method 10-15
Monitoring the Database Resource Manager 10-16
Monitoring the Resource Manager by Using EM 10-17
New V$ Views 10-18
Changed V$ Views 10-19
Summary 10-20
11 Automating Tasks with the Scheduler
Objectives 11-2
Scheduling Needs 11-3
Scheduler Concepts 11-4
Creating a Program 11-6
Creating a Program by Using EM 11-7
Creating and Using Schedules 11-8
Using EM to Create Schedules 11-9
Calendaring Expressions 11-10
Creating a Job 11-12
Creating a Time-Based Job 11-13

Setting the Repeat Interval for a Job 11-15
Using Events with Jobs 11-16
Event-Based Scheduling 11-17
Creating an Event-Based Job 11-18
Events Raised by the Scheduler 11-19
Using Events Raised by Jobs 11-21
Using EM to Create Event-Based Schedules 11-22
Creating Complex Schedules 11-23
Privileges for Scheduler Components 11-24
Enabling and Disabling Scheduler Components 11-26
Managing Scheduler Components 11-27
Managing Scheduler Components with EM 11-29
Viewing Attributes of Scheduler Components 11-30
Viewing Job Execution Details 11-31
Viewing Job Logs 11-32
Scheduler Job Chain Concepts 11-33
Creating Chains 11-34
Creating a Chain Object 11-36
Defining Chain Steps 11-37
Defining Chain Rules 11-39
Specifying Chain Rule Conditions 11-40
Starting the Chain 11-42
Creating a Job Chain with EM 11-43
Managing Job Chains 11-45

xi


Managing Job Chains with EM 11-46
Monitoring Job Chains 11-47

Advanced Scheduler Concepts 11-48
Creating a Window 11-49
Prioritizing Jobs Within a Window 11-50
Creating a Job Class 11-52
Summary 11-53
Practice 11: Overview 11-54
12 Space Management
Objectives 12-2
Oracle Database 10g Solution: Self-Managing Database 12-3
Proactive Tablespace Monitoring: Overview 12-4
Tablespace Space Usage Monitoring 12-5
Edit Tablespace Space Usage Thresholds 12-6
Edit Tablespace Page 12-7
PL/SQL and Tablespace Space Usage Thresholds 12-8
Proactive Undo Tablespace Monitoring 12-10
Shrinking Segments: Overview 12-11
Shrinking Segments: Considerations 12-12
Shrinking Segments by Using SQL 12-13
Segment Shrink: Basic Execution 12-14
Segment Shrink: Execution Considerations 12-15
Database Control and Segment Shrink 12-16
Segment Advisor: Overview 12-17
Running the Segment Advisor Manually 12-18
Using the Segment Advisor with EM 12-19
Growth Trend Report 12-20
Segment Resource Estimation 12-21
Undo Management Page 12-22
Undo Advisor Page 12-23
Fast Ramp-Up 12-24
Sorted Hash Cluster: Overview 12-25

Sorted Hash Cluster: Example 12-26
Sorted Hash Cluster: Basic Architecture 12-27
Sorted Hash Cluster: Considerations 12-28
Viewing Tablespace Contents 12-29
Summary 12-30
Practice 12: Overview 12-31
13 Improved Very Large Database (VDLB) Support
Objectives 13-2
Bigfile Tablespaces: Overview 13-3
Benefits of Bigfile Tablespaces 13-4

xii


Bigfile Tablespace: Usage Model 13-5
Creating Bigfile Tablespaces 13-6
SQL Statement Changes and Additions 13-7
BFTs and SQL Statements: Examples 13-8
Data Dictionary Changes and Additions 13-9
Bigfile Tablespaces and DBVERIFY 13-10
DBMS_UTILITY Package and BFTs 13-11
Migration and Bigfile Tablespaces 13-12
Extended ROWID Format and BFTs 13-13
DBMS_ROWID Package Changes 13-14
Temporary Tablespace Group: Overview 13-15
Temporary Tablespace Group: Benefits 13-16
Creating Temporary Tablespace Groups 13-17
Maintaining Temporary Tablespace Groups 13-18
Temporary Tablespace Group SQL: Examples 13-19
Data Dictionary Changes 13-21

Database Control: Creating a Partition 13-22
Database Control: Partition Maintenance 13-23
Partitioned IOT Enhancements 13-24
Local Partitioned Index Enhancements 13-25
Skipping Unusable Indexes 13-26
Hash-Partitioned Global Indexes: Overview 13-27
Contention Scenario 13-28
Hash-Partitioned Global Indexes: Benefits 13-29
Creating Hash-Partitioned Global Indexes 13-30
Adding and Coalescing Partitions 13-31
Range and Hash Global Index Commands 13-32
Operations Not Supported 13-33
Usage Example 13-34
Bitmap Index Storage Enhancements 13-35
DML Error Logging: Overview 13-36
DML Error Logging: Example 13-37
Error-Logging Table 13-38
DML Error Logging: Considerations 13-39
Summary 13-40
Practice 13: Overview 13-41
14 Backup and Recovery Enhancements
Objectives 14-2
Oracle Database 10g Solution: Self-Managing Database 14-3
Flash Recovery Area 14-4
Defining Flash Recovery Area by Using Database Control 14-6
Defining a Flash Recovery Area by Using SQL 14-7
Flash Recovery Area Space Management 14-8

xiii

Backing Up Data Files to a Flash Recovery Area 14-9
Modifying the Flash Recovery Area 14-10
Backing Up the Flash Recovery Area 14-11
Dynamic Flash Recovery Area Views 14-12
Flash Recovery Area Columns in Other Views 14-14
Best Practices for the Database and Flash Recovery Area 14-15
Changes in SQL Statement Behavior 14-16
Fast Incremental Backup 14-18
Enabling Fast Incremental Backup 14-19
Monitoring Block Change Tracking 14-20
Incrementally Updated Backups 14-21
Oracle-Suggested Strategy 14-22
Incremental Roll Forward of a Database Copy 14-23
RMAN Backup Command Changes 14-24
Backup Type Enhancements by Using Database Control 14-26
Backup Maintenance 14-27
Backing Up the Entire Database 14-28
Backing Up Individual Tablespaces 14-29
Backing Up Data Files and Control Files 14-30
Implementing Fast Recovery 14-31
Automated Instance Creation and TSPITR 14-32
Auxiliary Location in EM 14-33
Creating Compressed Backups 14-34
Monitoring Compressed Backups 14-35
Simplified Recovery Through RESETLOGS 14-36
Recovery Through RESETLOGS: Changes 14-37
Recovering Data Files Not Backed Up 14-38
Dropping a Database 14-39
Placing All Files in Online Backup Mode 14-40

How Does File Status Affect BEGIN BACKUP? 14-41
Changes to the END BACKUP Command 14-42
RMAN and Configuration Changes 14-43
Automatic Channel Failover 14-44
RMAN Channel Support for the Grid 14-45
Enhanced RMAN Scripts 14-46
Setting Duration and Throttling Option 14-47
Database Control: Backup Reports 14-48
Summary 14-49
Practice 14: Overview 14-50
15 Oracle Secure Backup Overview
Objectives 15-2
Data Protection to Tape for the Oracle Stack 15-3
The Customer Advantage Complete Oracle Solution 15-4

xiv


Oracle Secure Backup for Centralized Tape Backup Management 15-5
Oracle Secure Backup Administrative Domain 15-6
Oracle Secure Backup: Backup Management Overview 15-7
Oracle Secure Backup Catalog 15-8
Oracle Secure Backup Users 15-9
Predefined Classes 15-10
Oracle Secure Backup Interface Options 15-11
Managing Data to Be Protected 15-12
Oracle Secure Backup Media Concepts 15-13
Volume Set Recycling 15-14
Automated Device Management 15-15
Library Management Operations 15-16

Oracle Secure Backup: Installation 15-17
Installing Oracle Secure Backup Software 15-18
Administrative Server Installation: Example 15-19
Defining Your Administrative Server in EM 15-20
The Oracle Secure Backup Device and Media Page 15-21
Adding Devices 15-22
Manage Devices by Using EM 15-23
RMAN and Oracle Secure Backup 15-24
Accessing Oracle Secure Backup from RMAN 15-25
User Preauthorization 15-26
Database Backup Storage Selector 15-27
RMAN and Oracle Secure Backup Usage Model 15-28
Defining Database Storage Selector 15-29
Testing Your Tape Drives 15-30
Scheduling Backups by Using EM Database Control 15-31
Oracle-Suggested Strategy for Backups 15-32
Managing Tape Backups 15-33
Performing Database Recovery by Using Tape Backups 15-34
Backing Up File-System Files with Oracle Secure Backup 15-35
Oracle Secure Backup Web Tool 15-36
Oracle Secure Backup Data Set Scripts 15-37
Data Set Script: Examples 15-38
Data Set Organization 15-39
Creating Data Sets Using the Web Interface 15-40
File-System Files Backup Concepts 15-41
Oracle Secure Backup Jobs 15-42
Creating On-Demand Backup Requests 15-43
Sending Backup Requests to the Scheduler 15-44
Creating Backup Schedules 15-45
Creating Backup Triggers 15-46

Viewing Job Properties and Transcripts 15-47

xv


Restoring File-System Files with Oracle Secure Backup 15-48
Creating a Catalog-Based Restore Request 15-49
Sending Catalog-Based Restore Requests to the Scheduler 15-51
Listing All Backups of a Client 15-52
Summary 15-53
Practice 15: Overview 15-54
16 Flash Back Any Error
Objectives 16-2
Flashback Time Navigation 16-3
Flashback Error Correction 16-4
Flashback Database: Overview 16-5
Flashback Database: Eliminating Restore Time 16-6
Flashback Database Architecture 16-7
Configuring Flashback Database Using EM 16-8
Flashing Back Your Database by Using EM 16-9
Manually Configuring Flashback Database 16-10
Flashback Database: Examples 16-11
Monitoring Flashback Database 16-12
Excluding Tablespaces from Flashback Database 16-13
Flashback Database: Considerations 16-14
Flashing Back RESETLOGS 16-15
Flashback Drop: Overview 16-16
Recycle Bin 16-17
Flashing Back Dropped Tables by Using EM 16-18
Querying the Recycle Bin 16-19

Restoring Tables from the Recycle Bin 16-20
Recycle Bin: Automatic Space Reclamation 16-21
Recycle Bin: Manual Space Reclamation 16-22
Bypassing the Recycle Bin 16-23
Querying Dropped Tables 16-24
Flashback Drop: Considerations 16-25
Flashback Versions Query: Overview 16-26
Flashback Versions Query Using EM 16-27
Flashback Versions Query Syntax 16-28
Flashback Versions Query: Example 16-29
Flashback Versions Query: Considerations 16-30
Flashback Transaction Query: Overview 16-31
Flashback Transaction Query Using EM 16-32
Querying FLASHBACK_TRANSACTION_QUERY 16-33
Using Flashback Versions Query and Flashback Transaction Query 16-34
Flashback Transaction Query: Considerations 16-35
Flashback Table: Overview 16-36
Using EM to Flash Back Tables 16-37

xvi


Flashback Table: Example 16-38
Rolling Back a Flashback Table Operation 16-39
Flashback Table: Considerations 16-40
Restore Points: Overview 16-41
Guaranteed Restore Points 16-42
Guaranteed Restore Points: Properties 16-43
Restore Point Creation and Usage 16-44
Guaranteed Undo Retention 16-45

SCN and Time Mapping Enhancements 16-46
Granting Flashback Privileges 16-47
When to Use Flashback Technology 16-48
Flashback Technology: Benefits 16-49
Summary 16-50
Practice 16: Overview 16-51
17 General Space Management Enhancements
Objectives 17-2
Oracle Database 10g Solution: Self-Managing Database 17-3
SYSAUX Tablespace: Overview 17-4
SYSAUX Tablespace: Benefits 17-5
SYSAUX Occupants 17-6
CREATE DATABASE 17-7
ALTER TABLESPACE SYSAUX 17-8
SYSAUX Tablespace: General Usage 17-9
SYSAUX Occupants: Visualization 17-10
SYSAUX Occupants: Relocation 17-11
SYSAUX Occupants: Relocation Using SQL 17-12
Tablespace Rename: Overview 17-13
Tablespace Rename: Usage Example 17-14
Tablespace Rename: Considerations 17-15
Tablespace Rename: Best Practices 17-16
Default Permanent Tablespace: Overview 17-17
Designating a Default Permanent Tablespace 17-18
Default Permanent Tablespace: SQL Examples 17-19
Copying Files by Using the Database Server 17-20
Local Copy: Example 17-21
Transferring Files: Example 17-22
Copying Files: Considerations 17-23
Redo Logfile Size Advisor 17-24

Dropping an Empty Data File 17-26
Summary 17-27
Practice 17: Overview 17-28

xvii


18 Automatic Storage Management
Objectives 18-2
What Is Automatic Storage Management? 18-3
ASM: Key Features and Benefits 18-4
ASM: New Concepts 18-5
ASM: General Architecture 18-6
ASM Administration 18-8
ASM Instance Functionalities 18-9
Installing ASM: Overview 18-10
Transparent Multiversion Support 18-11
Creating a Database on ASM 18-12
Creating an ASM Instance on Its Own 18-13
ASM Instance Initialization Parameters 18-14
Accessing an ASM Instance 18-15
Dynamic Performance View Additions 18-16
ASM Home Page 18-17
ASM Performance Page 18-18
ASM Configuration Page 18-19
Starting Up an ASM Instance 18-20
Shutting Down an ASM Instance 18-21
ASM Administration 18-22
ASM Disk Group 18-23
Failure Group 18-24

Disk Group Mirroring 18-25
Disk Group Dynamic Rebalancing 18-26
ASM: Administration Page 18-27
Create Disk Group Page 18-28
Creating or Deleting Disk Groups 18-29
Adding Disks to Disk Groups 18-30
Miscellaneous Alter Commands 18-31
Monitoring Long-Running Operations by Using V$ASM_OPERATION 18-33
ASM Administration 18-34
ASM Files 18-35
ASM File Names 18-36
ASM File Name Syntax 18-37
ASM File Name Mapping 18-39
ASM File Templates 18-40
Template and Alias: Examples 18-41
Retrieving Aliases 18-42
SQL Commands and File Naming 18-43
ASM Command-Line Interface: Overview 18-44
ASM Command-Line Interface Commands 18-45
Database Instance Parameter Changes 18-46

xviii


Migrate Database To ASM Wizard 18-48
Manually Migrating Your Database to ASM 18-49
ASM and Transportable Tablespaces 18-50
ASM and XML DB: Overview 18-51
ASM Virtual Folder Hierarchy 18-52
ASM Virtual Folder: Typical Use 18-53

Summary 18-54
Practice 18: Overview 18-55
19 Maintaining Software
Objectives 19-2
Oracle Database 10g Upgrade Paths 19-3
Choosing an Upgrade Method 19-4
Advantages of Using DBUA 19-5
Manual Upgrade: Advantages and Disadvantages 19-6
New Preupgrade Information Utility 19-7
Oracle Database 10g: Simplified Upgrade 19-8
New Postupgrade Status Utility 19-9
Properly Prepared Upgrade 19-10
Using Database Upgrade Assistant 19-11
Recompiling Invalid Objects 19-12
Backing Up the Database Before Upgrade 19-13
Upgrade Summary 19-14
Performing the Manual Upgrade 19-15
Downgrading Using a Single Script 19-20
MetaLink Integration 19-21
OPatch Utility 19-22
OPatch Operations 19-24
Support for RAC Environments 19-25
OPatch Process Flow 19-26
Patch Conflict Detection 19-28
Summary 19-29
20 Security
Objectives 20-2
Virtual Private Database: Overview 20-3
Virtual Private Database: Enhancements 20-4
Column-Level VPD: Example 20-5

Creating a Column-Level Policy 20-6
Policy Types: Overview 20-7
Static Policies 20-8
Context-Sensitive Policies 20-9
Sharing Policy Functions 20-10
Auditing Mechanisms: Overview 20-11

xix


Uniform Audit Trails 20-12
Enhanced Enterprise User Auditing 20-13
Audit EM Page 20-14
Audit Enhancements 20-15
Fine-Grained Auditing: Enhancements 20-16
Fine-Grained Auditing Policy: Example 20-17
Audited DML Statement: Considerations 20-18
Transparent Data Encryption: Overview 20-19
Implementing Transparent Data Encryption 20-20
Existing Tables and Transparent Data Encryption 20-22
Transparent Data Encryption: Considerations 20-23
Data Pump and Transparent Data Encryption 20-24
RMAN Encrypted Backups: Overview 20-25
Transparent Mode Setup 20-26
Password Mode Setup 20-27
Dual Mode Setup 20-28
RMAN Encrypted Backups: Considerations 20-29
CONNECT Role Change 20-30
Wallet Support for Usernames and Passwords 20-31
Summary 20-32

Practice 20: Overview 20-33
21 Miscellaneous New Features
Objectives 21-2
Transaction Monitoring 21-3
Dynamic Performance View Changes 21-4
V$FAST_START_TRANSACTIONS View 21-5
Configurationless Client Connect 21-6
Simplified Shared-Server Configuration 21-8
Viewing the Dispatcher Configuration 21-9
Resumable Space Allocation Enhancements 21-10
Flushing the Buffer Cache 21-11
MAXTRANS and Maximum Concurrency 21-12
Large Object (LOB) Data Type Changes 21-13
Implicit Conversion Between CLOB and NCLOB 21-14
Regular Expression Support 21-15
Matching Mechanism 21-16
Syntax: Example 21-17
Using REGEXP_LIKE in SQL 21-18
Case- and Accent-Insensitive Query and Sort 21-19
Changes in Configuration Parameters 21-20
Support in SQL and Functions 21-21
Quote Operator q 21-22
UTL_MAIL Package 21-23

xx


UTL_MAIL: Examples 21-24
LogMiner Enhancements 21-25
Enhanced Initialization Parameters 21-26

Faster Instance Startup for Ultralarge Buffer Caches 21-27
Asynchronous COMMIT 21-28
How to Use Asynchronous COMMIT 21-29
Diagnosis of Hung or Extremely Slow Databases 21-30
Using Memory Access Mode 21-31
Using the Hang Analysis Page 21-32
Summary 21-34
Practice 21: Overview 21-35
Appendix A: Practices
Appendix B: Solutions

xxi



Oracle Secure Backup Overview

Copyright © 2005, Oracle. All rights reserved.


Objectives

After completing this lesson, you should be able to do
the following:
• Describe the Oracle Secure Backup architecture
and how it benefits your environment
• Discuss the basic Oracle Secure Backup media
management concepts
• Install and configure Oracle Secure Backup
• Use RMAN and Oracle Secure Backup to back up

and restore the Oracle database
• Use Oracle Secure Backup to back up and restore
file-system files

15-2

Copyright © 2005, Oracle. All rights reserved.

Oracle Database 10g: New Features for Administrators 15-2