Oracle GoldenGate 11g: Advanced Configuration for Oracle Student Guide

Transcription

1 Oracle GoldenGate 11g: Advanced Configuration for Oracle Student Guide D76689GC10 Edition 1.0 March 2013 D81509

2 Author Elio Bonazzi Editors Smita Kommini Raj Kumar Richard Wallis Graphic Designer Rajiv Chandrabhanu Publishers Pavithran Adka Jayanthy Keshavamurthy Copyright 2013, Oracle and/or its affiliates. All rights reserved. Disclaimer This document contains proprietary information and is protected by copyright and other intellectual property laws. You may copy and print this document solely for your own use in an Oracle training course. The document may not be modified or altered in any way. Except where your use constitutes "fair use" under copyright law, you may not use, share, download, upload, copy, print, display, perform, reproduce, publish, license, post, transmit, or distribute this document in whole or in part without the express authorization of Oracle. The information contained in this document is subject to change without notice. If you find any problems in the document, please report them in writing to: Oracle University, 500 Oracle Parkway, Redwood Shores, California USA. This document is not warranted to be error-free. Restricted Rights Notice If this documentation is delivered to the United States Government or anyone using the documentation on behalf of the United States Government, the following notice is applicable: U.S. GOVERNMENT RIGHTS The U.S. Government s rights to use, modify, reproduce, release, perform, display, or disclose these training materials are restricted by the terms of the applicable Oracle license agreement and/or the applicable U.S. Government contract. Trademark Notice Oracle and Java are registered trademarks of Oracle and/or its affiliates. Other names may be trademarks of their respective owners.

3 Contents 1 Introduction Course Objectives 1-2 Target Audience 1-3 Introductions 1-4 Agenda: Day Agenda: Day Agenda: Day Course Practices 1-8 Classroom Guidelines 1-9 For More Information 1-10 Related Training Oracle GoldenGate Integrated Capture Objectives 2-2 Roadmap 2-3 Extract: Overview 2-4 Oracle GoldenGate: Logical Architecture 2-5 Quiz 2-6 Roadmap 2-7 Classic Capture 2-8 Classic Capture: Limitations 2-9 Integrated Capture 2-10 Integrated Capture: Benefits 2-11 Integrated Capture: Limitations 2-12 Integrated Capture and Classic Capture: Working Together 2-13 Integrated Versus Classic Capture: Summary 2-14 Quiz 2-15 Roadmap 2-16 Integrated Capture Deployment Modes 2-17 Integrated Capture: Downstream Deployment 2-18 Real-Time Downstream Deployment 2-19 Deferred Downstream Deployment 2-20 Downstream Deployment: Advantages 2-21 Quiz 2-22 Roadmap 2-23 iii

4 Supported Features Based on Source DB Version 2-24 Summary 2-25 Practice 2: Overview Integrated Capture Deployment and Required Components Objectives 3-2 Roadmap 3-3 Local Deployment: New Syntax 3-4 Local Deployment: Required Steps 3-5 INTEGRATEDPARAMS Options 3-6 Local Deployment: Example 3-7 Integrated Capture: Upgrade from Classic 3-8 Integrated Capture Upgrade: Example 3-9 Quiz 3-10 Roadmap 3-11 Downstream Deployment: One or Multiple Sources 3-12 Real-Time Versus Deferred Downstream Deployment 3-13 Roadmap 3-14 Downstream Mining Server 3-15 Quiz 3-16 Users and Privileges Required for Downstream Deployment 3-17 Downstream Node Configuration: Preparing the Mining DB to Archive Its Redo 3-18 Preparing the Mining Database to Archive Redo Received from the Source Database 3-19 Preparing the Mining Database: Adding the Standby Redo Log Files 3-20 Preparing the Source Database to Send Redo to the Mining Database 3-21 Roadmap 3-22 Deploying Integrated Capture on Downstream Node 3-23 Summary 3-24 Practice 3: Overview Oracle GoldenGate Event Marker System Objectives 4-2 Roadmap 4-3 Event Marker Mechanism 4-4 EVENTACTIONS Options 4-5 Roadmap 4-6 EVENTACTIONS SEQUENCE 4-7 EVENTACTIONS Syntax 4-8 Event Marker Actions 4-9 Quiz 4-13 iv

5 Roadmap 4-14 Example 1: Avoiding the Propagation of Deletes 4-15 Example 2: SHELL Triggers a Remote Backup 4-16 Example 3: Stop Replicat Upon Detection of Data Anomalies 4-17 Example 4: Trace a Specific Data Insertion 4-18 Summary 4-19 Practice 4: Overview Data Mapping, Data Selection/Filtering, and Data Transformation Objectives 5-2 Roadmap 5-3 Column Mapping: Overview 5-4 Column Mapping: COLMAP Syntax 5-5 Column Mapping: COLMATCH Syntax 5-7 Global Column Mapping 5-8 Column Mapping: Example 5-9 Column Mapping: Building History 5-10 Roadmap 5-11 Data Selection: Overview 5-12 Data Selection: WHERE Clause 5-13 Data Selection: WHERE Clause Examples 5-15 Selection: FILTER Clause 5-16 Data Selection: FILTER Clause 5-17 Data Selection: FILTER Clause Examples 5-18 Data Selection: RANGE Function 5-19 Data Selection: RANGE Function Examples 5-20 Roadmap 5-22 Functions: Data Transformation 5-23 Functions: Overview 5-24 Functions: Example 5-25 Functions: Performing Tests on Column Values 5-26 Discussion Points: IF Function 5-27 Functions: Working with Dates 5-29 Discussion Points: DATE Function 5-30 Functions: Working with Strings and Numbers 5-33 Discussion Points: STRCAT Function 5-36 Discussion Point: STREXT Function 5-38 Functions: Other 5-39 Roadmap 5-41 SQLEXEC: Overview 5-42 SQLEXEC: Basic Functionality 5-44 v

6 SQLEXEC: Using with Lookup Stored Procedure 5-45 SQLEXEC: Using with SQL Query 5-47 SQLEXEC: Syntax in a TABLE or MAP Statement 5-48 SQLEXEC: Syntax as a Stand-Alone Statement 5-51 SQLEXEC: Error Handling 5-52 SQLEXEC: Using the GETVAL Function to Get Results 5-53 Summary 5-55 Practice 5: Overview Custom Behavior Through User Exits Objectives 6-2 User Exits: Overview 6-3 User Exits: Applications 6-4 User Exits: High-Level Processing Logic 6-5 User Exits: Parameters 6-6 User Exits: Implementation 6-9 User Exits: Samples 6-11 User Exits: Calling 6-12 Simple User Exit 6-14 Using Callback Routines 6-15 Oracle GoldenGate Adapters for JMS 6-16 Summary 6-17 Practice 6: Overview Configuring Zero Down Time Migration Replication Objectives 7-2 Software Upgrade Issues 7-3 When to Use Zero Down Time Migration 7-4 Zero Down Time Requirements 7-5 Seven-Step Approach to Zero Down Time Configuration: Phase Phase 2: Preparing Fallback 7-7 Performing Cutover 7-8 Deciding to Fallback 7-10 Performing Migration Fallback 7-11 Summary 7-13 Practice 7: Overview Bidirectional Replication: Two-Node Configuration Objectives 8-2 Roadmap 8-3 Bidirectional Replication: Advantages 8-4 vi

7 Bidirectional Replication: Disadvantages 8-5 Bidirectional Configuration 8-6 Roadmap 8-7 Bidirectional Replication Considerations 8-8 Requirements 8-9 Roadmap 8-10 Data Replication Looping 8-11 Loop Prevention 8-13 Roadmap 8-14 Configuring Table Truncates 8-15 Modifying Triggers and Cascade Deletes 8-16 Roadmap 8-17 Bidirectional Replication and Data Conflicts 8-18 CDR Facility 8-19 Conflict Types 8-20 Automatic Data Conflict Detection and Resolution 8-21 ResolveConflicts Arguments 8-22 Conflict Resolution Methods 8-23 Basic CDR in Action 8-24 Roadmap 8-25 DDL Support in Bidirectional Configurations 8-26 DDL Propagation Lag 8-29 Summary 8-30 Practice 8: Overview Conflict Detection and Resolution: Custom Techniques Objectives 9-2 Roadmap 9-3 Avoiding, Rather than Resolving, Conflicts 9-4 Application Segmentation Through Workload Partitioning 9-5 Conflict Avoidance Through Data Segmentation 9-6 Insert Conflict Avoidance Through Sequence Generation 9-7 Multi-Master Primary Key Generation 9-8 Handling Delete Data Conflicts 9-9 Quiz 9-10 Roadmap 9-11 Custom Conflict Resolution via SQLEXEC 9-12 Classic Data Conflict Scenario Affecting Inventory Columns 9-13 Simultaneous Transactions 9-14 Occurrence of Data Conflict 9-15 Quantitative Resolution 9-16 vii

8 Implementing a Quantitative Resolution by Using SQLEXEC 9-17 SQLEXEC in Action 9-18 Using User Exits for More Complex Logic 9-20 Summary 9-21 Practice 9: Overview Multi-Master Replication Topology: Three-Node Configuration Objectives 10-2 Multi-Master Configuration Diagram 10-3 Increased Administrative Complexity 10-4 Extract Group Configuration 10-5 Configuring a Multi-Master Extract 10-7 Configuring a Multi-Master Replicat 10-8 Multi-Master Data Pumps 10-9 Data Conflict Avoidance Data Conflict Management Conflict Resolution: Complexity Versus Flexibility Summary Practice 10: Overview Administering a Multi-Master Configuration Objectives 11-2 Roadmap 11-3 Adding an Extract Group 11-4 Roadmap 11-7 Adding a New Table 11-8 Altering a Table 11-9 Roadmap Graceful System Shutdown Altering the Size of Trail Files Reinitializing the Transaction Log Summary Practice 11: Overview viii