Oracle Golden Gate

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Oracle Golden Gate

  1. 1. 1 An Overview of GoldenGate Replication Muhammad Qasim ORACLE
  2. 2. 2 OUTLINE Introduction Overview of GoldenGate Overview of the DEMO DEMO Scenarios
  3. 3. 3 INTRODUCTION GoldenGate
  4. 4. 4 GoldenGate Introduction  The GoldenGate replication utility provides flexible and powerful framework, for automatic propagation of data changes  This presentation will provide an overview of GoldenGate replication; and it will display some examples of actually using GoldenGate.  In order to provide examples of using GoldenGate, a DEMO environment, which uses GoldenGate, has been set up.
  5. 5. 5 Overview of GoldenGate Replication GoldenGate replication consists of three basic utilities: “extract”,”replicat” and “data pump”. In addition all three of these utilities access “trail files”, which are flat files that contain formatted GoldenGate data. An extract group mines a database’s redo logs; and writes information about the changes it find into trail files. Extract is functionally similar to the Streams “capture” process. A replicat group reads information from trail files; and then writes those changes into database tables. Replicat is functionally similar to the Streams “apply” process. A data pump group copies information between trail files. Data is functionally similar to Streams “propagate” process.
  6. 6. Overview of the DEMO 6 We have two 11g databases deployed in different environments. Source: Windows XP 32bit 11g release 2 Target: Linux x86 32bit 11g release 2 We will demonstrate two scenarios where data will be replicated from source to target.
  7. 7. 7  Scenario 1: One-to-One Configuration using Direct Load Method  In this configuration, one Extract group sends captured data over TCP/IP to a trail on the target system, where it is stored until processed by one Replicat group.  Scenario 2: One-to-One Configuration using File to Replicate  This method uses an Extract process to extract source data into flat files or trails on the target system.  The initial load Replicat task then moves the data from the intermediate file to the target database. Demonstration Scenarios
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