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  • Table of Contents

  • A. What's on the Companion Disk?

    • A.1 Installing the Guide

    • A.2 Using the Guide

  • 1. Introduction

    • 1.1 The Power of Built-in Packages

      • 1.1.1 A Kinder , More Sharing Oracle

    • 1.2 Built-in Packages Covered in This Book

      • 1.2.1 Application Development Packages

      • 1.2.2 Server Management Packages

      • 1.2.3 Distributed Database Packages

    • 1.3 Using Built-in Packages

      • 1.3.1 What Is a Package?

      • 1.3.2 Controlling Access with Packages

      • 1.3.3 Referencing Built-in Package Elements

      • 1.3.4 Exception Handling and Built-in Packages

      • 1.3.5 Encapsulating Access to the Built-in Packages

      • 1.3.6 Calling Built-in Packaged Code from Oracle Developer/2000 Release 1

      • 1.3.7 Accessing Built-in Packaged Technology from Within SQL

    • 1.4 Examining Built-in Package Source Code

      • 1.4.1 The STANDARD Package

      • 1.4.2 The DBMS_STANDARD Package

  • 2. Executing Dynamic SQL and PL/SQL

    • 2.1 Examples of Dynamic SQL

    • 2.2 Getting Started with DBMS_SQL

      • 2.2.1 Creating the DBMS_SQL Package

      • 2.2.2 Security and Privilege Issues

      • 2.2.3 DBMS_SQL Programs

      • 2.2.4 Types of Dynamic SQL

      • 2.2.5 DBMS_SQL Exceptions

      • 2.2.6 DBMS_SQL Nonprogram Elements

    • 2.3 The DBMS_SQL Interface

      • 2.3.1 Processing Flow of Dynamic SQL

      • 2.3.2 Opening the Cursor

      • 2.3.3 Parsing the SQL Statement

      • 2.3.4 Binding Values into Dynamic SQL

      • 2.3.5 Defining Cursor Columns

      • 2.3.6 Executing the Cursor

      • 2.3.7 Fetching Rows

      • 2.3.8 Retrieving Values

      • 2.3.9 Closing the Cursor

      • 2.3.10 Checking Cursor Status

      • 2.3.11 Describing Cursor Columns

    • 2.4 Tips on Using Dynamic SQL

      • 2.4.1 Some Restrictions

      • 2.4.2 Privileges and Execution Authority with DBMS_SQL

      • 2.4.3 Combining Operations

      • 2.4.4 Minimizing Memory for Cursors

      • 2.4.5 Improving the Performance of Dynamic SQL

      • 2.4.6 Problem-Solving Dynamic SQL Errors

      • 2.4.7 Executing DDL in PL/SQL

      • 2.4.8 Executing Dynamic PL/SQL

    • 2.5 DBMS_SQL Examples

      • 2.5.1 A Generic Drop_Object Procedure

      • 2.5.2 A Generic Foreign Key Lookup Function

      • 2.5.3 A Wrapper for DBMS_SQL .DESCRIBE_COLUMNS

      • 2.5.4 Displaying Table Contents with Method 4 Dynamic SQL

      • 2.5.5 Indirect Referencing in PL/SQL

      • 2.5.6 Array Processing with DBMS_SQL

      • 2.5.7 Using the RETURNING Clause in Dynamic SQL

  • 3. Intersession Communication

    • 3.1 DBMS_PIPE: Communicating Between Sessions

      • 3.1.1 Getting Started with DBMS_PIPE

      • 3.1.2 How Database Pipes Work

      • 3.1.3 Managing Pipes and the Message Buffer

      • 3.1.4 Packing and Unpacking Messages

      • 3.1.5 Sending and Receiving Messages

      • 3.1.6 Tips on Using DBMS_PIPE

      • 3.1.7 DBMS_PIPE Examples

    • 3.2 DBMS_ALERT: Broadcasting Alerts to Users

      • 3.2.1 Getting Started with DBMS_ALERT

      • 3.2.2 The DBMS_ALERT Interface

      • 3.2.3 DBMS_ALERT Examples

  • 4. User Lock and Transaction Management

    • 4.1 DBMS_LOCK: Creating and Managing Resource Locks

      • 4.1.1 Getting Started with DBMS_LOCK

      • 4.1.2 The DBMS_LOCK Interface

      • 4.1.3 Tips on Using DBMS_LOCK

      • 4.1.4 DBMS_LOCK Examples

    • 4.2 DBMS_TRANSACTION: Interfacing to SQL Transaction Statements

      • 4.2.1 Getting Started with DBMS_TRANSACTION

      • 4.2.2 Advising Oracle About In-Doubt Transactions

      • 4.2.3 Committing Data

      • 4.2.4 Rolling Back Changes

      • 4.2.5 Setting Transaction Characteristics

      • 4.2.6 Cleaning Up Transaction Details

      • 4.2.7 Returning Transaction Identifiers

  • 5. Oracle Advanced Queuing

    • 5.1 Oracle AQ Concepts

      • 5.1.1 General Features

      • 5.1.2 Enqueue Features

      • 5.1.3 Dequeue Features

      • 5.1.4 Propagation Features

      • 5.1.5 A Glossary of Terms

      • 5.1.6 Components of Oracle AQ

      • 5.1.7 Queue Monitor

      • 5.1.8 Data Dictionary Views

    • 5.2 Getting Started with Oracle AQ

      • 5.2.1 Installing the Oracle AQ Facility

      • 5.2.2 Database Initialization

      • 5.2.3 Authorizing Accounts to Use Oracle AQ

    • 5.3 Oracle AQ Nonprogram Elements

      • 5.3.1 Constants

      • 5.3.2 Object Names

      • 5.3.3 Queue Type Names

      • 5.3.4 Agents Object Type

      • 5.3.5 Recipient and Subscriber List Table Types

      • 5.3.6 Message Properties Record Type

      • 5.3.7 Enqueue Options Record Type

      • 5.3.8 Dequeue Options Record Type

      • 5.3.9 Oracle AQ Exceptions

    • 5.4 DBMS_AQ: Interfacing to Oracle AQ (Oracle8 only)

      • 5.4.1 Enqueuing Messages

      • 5.4.2 Dequeuing Messages

    • 5.5 DBMS_AQADM: Performing AQ Administrative Tasks (Oracle8 only)

      • 5.5.1 Creating Queue Tables

      • 5.5.2 Creating and Starting Queues

      • 5.5.3 Managing Queue Subscribers

      • 5.5.4 Stopping and Dropping Queues

      • 5.5.5 Managing Propagation of Messages

      • 5.5.6 Verifying Queue Types

      • 5.5.7 Starting and Stopping the Queue Monitor

    • 5.6 Oracle AQ Database Objects

      • 5.6.1 Objects Per Queue Table

      • 5.6.2 Data Dictionary Objects

    • 5.7 Oracle AQ Examples

      • 5.7.1 Improving AQ Ease of Use

      • 5.7.2 Working with Prioritized Queues

      • 5.7.3 Building a Stack with AQ Using Sequence Deviation

      • 5.7.4 Browsing a Queue's Contents

      • 5.7.5 Searching by Correlation Identifier

      • 5.7.6 Using Time Delay and Expiration

      • 5.7.7 Working with Message Groups

      • 5.7.8 Working with Multiple Consumers

  • 6. Generating Output from PL/SQL Programs

    • 6.1 DBMS_OUTPUT: Displaying Output

      • 6.1.1 Getting Started with DBMS_OUTPUT

      • 6.1.2 Enabling and Disabling Output

      • 6.1.3 Writing to the DBMS_OUTPUT Buffer

      • 6.1.4 Retrieving Data from the DBMS_OUTPUT Buffer

      • 6.1.5 Tips on Using DBMS_OUTPUT

      • 6.1.6 DBMS_OUTPUT Examples

    • 6.2 UTL_FILE: Reading and Writing Server-side Files

      • 6.2.1 Getting Started with UTL_FILE

      • 6.2.2 Opening Files

      • 6.2.3 Reading from Files

      • 6.2.4 Writing to Files

      • 6.2.5 Closing Files

      • 6.2.6 Tips on Using UTL_FILE

      • 6.2.7 UTL_FILE Examples

  • 7. Defining an Application Profile

    • 7.1 Getting Started with DBMS_APPLICATION_INFO

      • 7.1.1 DBMS_APPLICATION_INFO Programs

      • 7.1.2 The V$ Virtual Tables

      • 7.1.3 DBMS_APPLICATION_INFO Nonprogram Elements

    • 7.2 DBMS_APPLICATION_INFO Interface

      • 7.2.1 The DBMS_APPLICATION_INFO.READ_CLIENT_INFO procedure

      • 7.2.2 The DBMS_APPLICATION_INFO.READ_MODULE procedure

      • 7.2.3 The DBMS_APPLICATION_INFO.SET_ACTION procedure

      • 7.2.4 The DBMS_APPLICATION_INFO.SET_CLIENT_INFO procedure

      • 7.2.5 The DBMS_APPLICATION_INFO.SET_MODULE procedure

      • 7.2.6 The DBMS_APPLICATION_INFO.SET_SESSION_LONGOPS procedure

    • 7.3 DBMS_APPLICATION_INFO Examples

      • 7.3.1 About the register_app Package

      • 7.3.2 The action Procedure

      • 7.3.3 The set_stats Procedure

      • 7.3.4 The Information Procedures

      • 7.3.5 Using the register_app Package

      • 7.3.6 Covering DBMS_APPLICATION_INFO

      • 7.3.7 Monitoring Application SQL Resource Consumption

      • 7.3.8 Session Monitoring and Three-Tier Architectures

      • 7.3.9 Tracking Long-Running Processes

  • 8. Managing Large Objects

    • 8.1 Getting Started with DBMS_LOB

      • 8.1.1 DBMS_LOB Programs

      • 8.1.2 DBMS_LOB Exceptions

      • 8.1.3 DBMS_LOB Nonprogram Elements

      • 8.1.4 About the Examples

    • 8.2 LOB Concepts

      • 8.2.1 LOB Datatypes

      • 8.2.2 BFILE Considerations

      • 8.2.3 Internal LOB Considerations

    • 8.3 DBMS_LOB Interface

      • 8.3.1 Working with BFILEs

      • 8.3.2 Reading and Examining LOBs

      • 8.3.3 Updating BLOBs, CLOBs, and NCLOBs

  • 9. Datatype Packages

    • 9.1 DBMS_ROWID: Working with the ROWID Pseudo-Column (Oracle8 only)

      • 9.1.1 Getting Started with DBMS_ROWID

      • 9.1.2 ROWID Concepts

      • 9.1.3 The DBMS_ROWID Interface

    • 9.2 UTL_RAW: Manipulating Raw Data

      • 9.2.1 Getting Started with UTL_RAW

      • 9.2.2 Raw Data Manipulation Concepts

      • 9.2.3 The UTL_RAW Interface

      • 9.2.4 UTL_REF: Referencing Objects (Oracle8.0.4)

      • 9.2.5 UTL_REF Interface

      • 9.2.6 UTL_REF Example

  • 10. Miscellaneous Packages

    • 10.1 DBMS_UTILITY: Performing Miscellaneous Operations

      • 10.1.1 Getting Started with DBMS_UTILITY

      • 10.1.2 The DBMS_UTILITY Interface

    • 10.2 DBMS_DESCRIBE: Describing PL/SQL Program Headers

      • 10.2.1 Getting Started with DBMS_DESCRIBE

      • 10.2.2 Explaining DBMS_DESCRIBE Results

      • 10.2.3 DBMS_DESCRIBE Example

    • 10.3 DBMS_DDL: Compiling and Analyzing Objects

      • 10.3.1 Getting Started with DBMS_DDL

      • 10.3.2 Compiling PL/SQL Objects

      • 10.3.3 Computing Statistics for an Object

      • 10.3.4 Setting Referenceability of Tables

    • 10.4 DBMS_RANDOM: Generating Random Numbers (Oracle8 Only)

      • 10.4.1 Getting Started with DBMS_RANDOM

      • 10.4.2 DBMS_RANDOM Interface

  • 11. Managing Session Information

    • 11.1 DBMS_SESSION: Managing Session Information

      • 11.1.1 Getting Started with DBMS_SESSION

      • 11.1.2 Modifying Session Settings

      • 11.1.3 Obtaining Session Information

      • 11.1.4 Managing Session Resources

      • 11.1.5 DBMS_SESSION Examples

    • 11.2 DBMS_System: Setting Events for Debugging

      • 11.2.1 Getting Started with DBMS_SYSTEM

      • 11.2.2 DBMS_SYSTEM Interface

      • 11.2.3 DBMS_SYSTEM Examples

  • 12. Managing Server Resources

    • 12.1 DBMS_SPACE: Obtaining Space Information

      • 12.1.1 Getting Started with DBMS_SPACE

      • 12.1.2 The DBMS_SPACE Interface

      • 12.1.3 DBMS_SPACE Examples

    • 12.2 DBMS_SHARED_POOL: Pinning Objects

      • 12.2.1 Getting Started with DBMS_SHARED_POOL

      • 12.2.2 Pinning and Unpinning Objects

      • 12.2.3 Monitoring and Modifying Shared Pool Behavior

      • 12.2.4 DBMS_SHARED_POOL Examples

  • 13. Job Scheduling in the Database

    • 13.1 Getting Started with DBMS_ JOB

      • 13.1.1 DBMS_JOB Programs

      • 13.1.2 Job Definition Parameters

      • 13.2.1 INIT.ORA Parameters and Background Processes

      • 13.2.2 Job Execution and the Job Execution Environment

      • 13.2.3 Miscellaneous Notes

      • 13.2.4 DBMS_JOB Interface

      • 13.2.5 Submitting Jobs to the Job Queue

      • 13.2.6 Modifying Job Characteristics

      • 13.2.7 Removing Jobs and Changing Job Execution Status

      • 13.2.8 Transferring Jobs

    • 13.2 Job Queue Architecture

    • 13.3 Tips on Using DBMS_JOB

      • 13.3.1 Job Intervals and Date Arithmetic

      • 13.3.2 Viewing Job Information in the Data Dictionary

      • 13.3.3 DBMS_IJOB: Managing Other Users' Jobs

    • 13.4 DBMS_JOB Examples

      • 13.4.1 Tracking Space in Tablespaces

      • 13.4.2 Fixing Broken Jobs Automatically

      • 13.4.3 Self-Modifying and Self-Aware Jobs

  • 14. Snapshots

    • 14.1 DBMS_SNAPSHOT: Managing Snapshots

      • 14.1.1 Getting Started with DBMS_SNAPSHOT

      • 14.1.2 Using the I_AM_A_REFRESH Package State Variable

      • 14.1.3 Refreshing Snapshots

      • 14.1.4 Purging the Snapshot Log

      • 14.1.5 Reorganizing Tables

      • 14.1.6 Registering Snapshots

      • 14.2.1 Getting Started with DBMS_REFRESH

      • 14.2.2 Creating and Destroying Snapshot Groups

      • 14.2.3 Adding and Subtracting Snapshots from Snapshot Groups

      • 14.2.4 Altering Properties of a Snapshot Group

      • 14.2.5 Manually Refreshing Snapshot Groups

    • 14.2 DBMS_REFRESH: Managing Snapshot Groups

    • 14.3 DBMS_OFFLINE_SNAPSHOT: Performing Offline Snapshot Instantiation

      • 14.3.1 Getting Started with DBMS_OFFLINE_SNAPSHOT

      • 14.3.2 DBMS_OFFLINE_SNAPSHOT Interface

    • 14.4 DBMS_REPCAT: Managing Snapshot Replication Groups

      • 14.4.1 Getting Started with DBMS_REPCAT

      • 14.4.2 Creating and Dropping Snapshot Replication Groups

      • 14.4.3 Adding and Removing Snapshot Replication Group Objects

      • 14.4.4 Altering a Snapshot Replication Group's Propagation Mode

      • 14.4.5 Manually Refreshing a Snapshot Replication Group

      • 14.4.6 Switching the Master of a Snapshot Replication Group

  • 15. Advanced Replication

    • 15.1 DBMS_REPCAT_AUTH: Setting Up Administrative Accounts

      • 15.1.1 Getting Started with DBMS_REPCAT_AUTH

      • 15.1.2 Granting and Revoking Surrogate SYS Accounts

      • 15.1.3 Granting and Revoking Propagator Accounts (Oracle8)

    • 15.2 DBMS_REPCAT_ADMIN: Setting Up More Administrator Accounts

      • 15.2.1 Getting Started with DBMS_REPCAT_ADMIN

      • 15.2.2 Creating and Dropping Replication Administrator Accounts

    • 15.3 DBMS_REPCAT: Replication Environment Administration

      • 15.3.1 Getting Started with DBMS_REPCAT

      • 15.3.2 Replication Groups with DBMS_REPCAT

      • 15.3.3 Replicated Objects with DBMS_REPCAT

      • 15.3.4 Replication Support with DBMS_REPCAT

      • 15.3.5 Adding and Removing Master Sites with DBMS_REPCAT

      • 15.3.6 Maintaining the Repcatlog Queue with DBMS_REPCAT

      • 15.3.7 Quiescence with DBMS_REPCAT

      • 15.3.8 Miscellaneous DBMS_REPCAT Procedures

    • 15.4 DBMS_OFFLINE_OG: Performing Site Instantiation

      • 15.4.1 Getting Started with DBMS_OFFLINE_OG

      • 15.4.2 DBMS_OFFLINE_OG Interface

    • 15.5 DBMS_RECTIFIER_DIFF: Comparing Replicated Tables

      • 15.5.1 Getting Started with DBMS_RECTIFIER_DIFF

      • 15.5.2 DBMS_RECTIFIER_DIFF Interface

    • 15.6 DBMS_REPUTIL: Enabling and Disabling Replication

      • 15.6.1 Getting Started with DBMS_REPUTIL

      • 15.6.2 DBMS_REPUTIL Interface

  • 16. Conflict Resolution

    • 16.1 Getting Started with DBMS_REPCAT

      • 16.1.1 DBMS_REPCAT Programs

      • 16.1.2 DBMS-REPCAT Exceptions

      • 16.1.3 DBMS-REPCAT Nonprogram Elements

      • 16.1.4 Data Dictionary Views

    • 16.2 Column Groups with DBMS_REPCAT

      • 16.2.1 About Column Groups

      • 16.2.2 Creating and Dropping Column Groups

      • 16.2.3 Modifying Existing Column Groups

    • 16.3 Priority Groups with DBMS_REPCAT

      • 16.3.1 About Priority Groups

      • 16.3.2 Creating, Maintaining, and Dropping Priority Groups

      • 16.3.3 Creating and Maintaining Priorities Within a Priority Group

      • 16.3.4 Dropping Priorities from a Priority Group

    • 16.4 Site Priority Groups with DBMS_REPCAT

      • 16.4.1 About Site Priority Groups

      • 16.4.2 Creating, Maintaining, and Dropping Site Priorities

      • 16.4.3 Maintaining Site Priorities

    • 16.5 Assigning Resolution Methods with DBMS_REPCAT

      • 16.5.1 About Resolution Methods

    • 16.6 Monitoring Conflict Resolution with DBMS_REPCAT

      • 16.6.1 About Monitoring

  • 17. Deferred Transactions and Remote Procedure Calls

    • 17.1 About Deferred Transactions and RPCs

      • 17.1.1 About Remote Destinations

      • 17.1.2 Data Dictionary Views

    • 17.2 DBMS_DEFER_SYS: Managing Deferred Transactions

      • 17.2.1 Getting Started with DBMS_DEFER_SYS

      • 17.2.2 Adding and Deleting Default Destinations

      • 17.2.3 Copying Deferred Transactions to New Destinations

      • 17.2.4 Maintenance Procedures

      • 17.2.5 Propagating Deferred RPCs

      • 17.2.6 Scheduling Propagation (Oracle8 only)

    • 17.3 DBMS_DEFER: Building Deferred Calls

      • 17.3.1 Getting Started with DBMS_DEFER

      • 17.3.2 Basic RPCs

      • 17.3.3 Parameterized RPCs

    • 17.4 DBMS_DEFER_QUERY: Performing Diagnostics and Maintenance

      • 17.4.1 Getting Started with DBMS_DEFER_QUERY

    • Table of Contents

      • Part I: Overview

      • Part II: Application Development Packages

      • Part III: Server Management Packages

      • Part IV: Distributed Database Packages

  • Structure of This Book

Nội dung

missingresolution −23343 Reference conflict resolution method does not exist missingschema −23306 Schema does not exist missingvalue −23337 Missing value (used internally) nonmasterdef −23312 Site is not a master definition site nonsnapshot −23314 Site is not a snapshot site paramtype −23325 Invalid parameter type (used internally) referenced −23332 Attempt to drop column group used for conflict resolution statnotreg −23345 Conflict resolution statistics not registered (used internally) typefailure −23319 Attempt to replicate nonsupported datatype 16.1.3 DBMS−REPCAT Nonprogram Elements In addition to programs and exceptions, the DBMS_REPCAT package defines the following constant used for conflict resolution: VARCHAR2S PL/SQL table of VARCHAR2(60) indexed by BINARY INTEGER. 16.1.4 Data Dictionary Views Oracle provides a number of data dictionary views that are useful for analyzing the status and volume of conflicts, as listed in Table 16.3. Table 16.3: Data Dictionary Views Associated with Conflict Resolution View Name Description DBA_REPCOLUMN_GROUP Contains information about column groups. DBA_REPCONFLICT Contains information about all conflict resolution methods that have been defined. DBA_REPGROUPED_ COLUMN Contains information about all columns that are members of column groups. DBA_REPPARAMETER_COLUMN Contains information about columns that are designated to resolve conflicts. These columns have been passed in the list_of_column_names parameter of DBMS_REPCAT.ADD_<conflicttype>_RESOLUTION. DBA_REPPRIORITY Contains information about every value and priority that has been defined for all priority groups and site priority groups. DBA_REPPRIORITY_GROUP Contains information about all priority groups and site priority groups. DBA_REPRESOLUTION Contains information about the conflict resolution technique that has been defined for all conflict types. DBA_REPRESOL_STATS_CONTROL Contains information about statistics that have been gathered for conflict resolution. DBA_REPRESOLUTION_METHOD [Appendix A] What's on the Companion Disk? 16.1.3 DBMS−REPCAT Nonprogram Elements 711 Contains information about all available conflict resolution methods. DBA_REPRESOLUTION_STATISTICS If resolution statistics are being collected, contains information about the execution of conflict resolution handlers. Tables 16−4 through 16−14 describe the contents of these views. Table 16.4: Columns in DBA_REPCOLUMN_GROUP View Column Name Description sname Schema that owns table oname oname Name of the replicated table group_name Name of the column group group_comment Comment for the column group Table 16.5: Columns in DBA_REPCONFLICT View Column Name Description sname Schema that owns table oname. oname Name of the replicated table. conflict_type Type of conflict the resolution method resolves. reference_name For DELETE conflicts, the table name. For UNIQUENESS conflicts, the unique constraint name. For UPDATE conflicts, the column group name. Table 16.6: Columns in DBA_REPGROUPED_COLUMN View Column Name Description sname Schema that owns table oname oname Name of the replicated table group_name Name of the column group group_comment Comment for the column group Table 16.7: Columns in DBA_REPPARAMETER_COLUMN View Column Name Description sname Schema that owns table oname. oname Name of the replicated table. conflict_type Type of conflict the method resolves. reference_name For DELETE conflicts, the table name. For UNIQUENESS conflicts, the unique constraint name. For UPDATE conflicts, the column group name. sequence_no Order in which the method is attempted. 1 is first. method_name Name of the built−in resolution method, or `USER FUNCTION' for user defined methods. [Appendix A] What's on the Companion Disk? 16.1.3 DBMS−REPCAT Nonprogram Elements 712 function_name Name of the user defined function (if applicable). priority_group Name of the priority group (if applicable). parameter_table_name Name of the PL/SQL table containing columns that are passed to the resolution method. parameter_column_name Name of the column passed to parameter_column_name in ADD_<confllicttype>_RESOLUTION call. parameter_sequence_no Position of the column in the parameter_column_name parameter. Table 16.8: Columns in DBA_REPPRIORITY View Column Name Description sname Name of the replicated schema. Obsolete with Version 7.3 onwards; replace by gname. priority_group Name of the priority group. priority Priority level (the higher the number, the higher the priority). data_type Datatype of the priority group. fixed_data_length Maximum length for CHAR datatypes. char_value For CHAR priority groups, the value associated with the priority. varchar2_value For VARCHAR2 priority groups, the value associated with the priority. number_value For NUMBER priority groups, the value associated with the priority. date_value For DATE priority groups, the value associated with the priority. raw_value For RAW priority groups, the value associated with the priority. gname Name of the replication group. nchar_value (Oracle8 only) For NCHAR priority groups, the value associated with the priority. nvarchar2_value (Oracle8 only) For NVARCHAR2 priority groups, the value associated with the priority. large_char_value (Oracle8 only) For LARGE_CHAR priority groups, the value associated with the priority. Table 16.9: Columns in DBA_REPPRIORITY_GROUP View Column Name Description sname Name of the replicated schema. Obsolete with Version 7.3 onwards; replace by gname. priority_group Name of the priority group or site priority group. data_type Datatype of the priority group. fixed_data_length Maximum length for CHAR datatypes. priority_comment Comment for priority group. gname Replication group to which priority group belongs. Table 16.10: Columns in DBA_REPRESOLUTION View Column Name Description [Appendix A] What's on the Companion Disk? 16.1.3 DBMS−REPCAT Nonprogram Elements 713 sname Schema that owns table oname. oname Name of the replicated table. conflict_type Type of conflict the method resolves. reference_name For DELETE conflicts, the table name. For UNIQUENESS conflicts, the unique constraint name. For UPDATE conflicts, the column group name. sequence_no Order in which the method is attempted. 1 is first. method_name Name of the built−in resolution method, or USER FUNCTION for user−defined methods. function_name Name of the user−defined function (if applicable). priority_group Name of the priority group (if applicable). resolution_comment Comment on the resolution method. Table 16.11: Columns in DBA_REPRESOL_STATS_CONTROL View Column Name Description sname Schema that owns table oname oname Name of the replicated table created Date statistics were first collected status Current status of statistics collection (ACTIVE or CANCELLED) status_update_date Date of last update to status purged_date Date of last purge of statistics last_purge_start_date Start Date passed to last call to PURGE_STATISTICS last_purge_end_date End Date passed to last call to PURGE_STATISTICS Table 16.12: Columns in DBA_REPRESOLUTION_METHOD View Column Name Description conflict_type Type of conflict the method resolves (UPDATE, UNIQUENESS, or DELETE) method_name Name of the built in method, or name of user−supplied function Table 16.13: Columns in DBA_REPRESOLUTION_STATISTICS View Column Name Description sname Schema that owns table oname. oname Name of the replicated table. conflict_type Type of conflict that Oracle resolved successfully (UPDATE, UNIQUENESS, or DELETE). reference_name For DELETE conflicts, the table name. For UNIQUENESS conflicts, the unique constraint name. For UPDATE conflicts, the column group name. method_name Name of the built−in resolution method, or `USER FUNCTION' for user defined methods. function_name Name of the user defined function (if applicable). [Appendix A] What's on the Companion Disk? 16.1.3 DBMS−REPCAT Nonprogram Elements 714 priority_group Name of the priority group (if applicable). resolved_date Date Oracle resolved the conflict. primary_key_value Value of the primary key for the resolved row. 15.6 DBMS_REPUTIL: Enabling and Disabling Replication 16.2 Column Groups with DBMS_REPCAT Copyright (c) 2000 O'Reilly & Associates. All rights reserved. [Appendix A] What's on the Companion Disk? 16.1.3 DBMS−REPCAT Nonprogram Elements 715 . priority. gname Name of the replication group. nchar_value (Oracle8 only) For NCHAR priority groups, the value associated with the priority. nvarchar2_value (Oracle8 only) For NVARCHAR2 priority groups, the. group name. sequence_no Order in which the method is attempted. 1 is first. method_name Name of the built−in resolution method, or `USER FUNCTION' for user defined methods. [Appendix A] What's. resolution: VARCHAR2S PL/SQL table of VARCHAR2(60) indexed by BINARY INTEGER. 16.1.4 Data Dictionary Views Oracle provides a number of data dictionary views that are useful for analyzing the status and volume

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