Oracle GoldenGate Services Architecture: Configure Deployment Via REST API

Introduction The Oracle GoldenGate Microservices Architecture (OGG-SA) REST API may be used to configure Extracts, Replicats, and Distribution Paths, as well as create new parameter files or modify existing ones for a Deployment. In this article we shall use the REST API to configure a replication path and perform common modifications to Deployments; such as changing OGG_HOME after […]

Oracle GoldenGate Microservices Architecture: Using Self-signed Certificates

Introduction Oracle GoldenGate Microservices Architecture (OGG-MA) provides functionality for securing Rest API calls and communications channels between the Distribution and Receiver Servers over Transport Layer Security (TLS). In order to activate this security protocol a SSL Certificate must be obtained from a Certificate Authority (CA) and installed on the server prior to creating the OGG-MA […]

Oracle GoldenGate Services Architecture: Monitoring Via REST API

Introduction The Oracle GoldenGate (OGG) REST API may be used to configure, manage, and monitor Oracle GoldenGate Microservices Architecture (OGG-MA) services and deployments. In this article we shall use REST API to monitor an existing OGG-MA deployment. The concepts, scripts, and information presented in this article are for educational purposes only. They are not supported by […]

Oracle GoldenGate: Migrate to Microservices Architecture

Introduction Oracle GoldenGate Microservices Architecture (OGG-MA) is a Restful API microservices based architecture that provides functionality for the configuration, installation, and management of Oracle GoldenGate services using a web-based user interface. In this article, we’ll migrate an existing Oracle GoldenGate Classic (OGG) instance to an OGG-MA deployment. The concepts, scripts, and information presented in this article are […]

Oracle GoldenGate: Apply to Apache Flume File Roll Sink

Introduction Apache Flume is a distributed, reliable, and available system for efficiently collecting, aggregating and moving large amounts of log data from many different sources to a centralized data store. The Oracle GoldenGate for Big Data Flume Handler is designed to stream change capture data from a Oracle GoldenGate trail to a Flume File Roll […]

Oracle GoldenGate Big Data Adapter: Establishing Secure Connections to Apache Kafka

Introduction When publishing data to Apache Kafka via the Oracle GoldenGate Big Data Kafka Handler, it is a good practice to establish secure connections in order to protect sensitive data from un-authorized snooping. The Oracle Big Data Kafka Handler leverages encryption and authentication features built-in to Apache Kafka. In this article we shall detail the Oracle […]

Oracle GoldenGate: Integrated Heartbeat

Introduction Oracle GoldenGate (OGG) version 12.2 introduced an automatic heartbeat integrated into the application. In this article we shall demonstrate how to enable the OGG heartbeat in an Oracle to Oracle replication environment, demonstrate the additional information made available via heartbeat, and demonstrate how to manage and modify heartbeat across the replication environment. The concepts, scripts and information […]

Oracle GoldenGate: Teradata Instantiation

Introduction When working with Teradata customers, we are always asked for recommendations of how to instantiate the target Teradata database. There are numerous ways to accomplish this; including various third-party applications that most customers have in-house. In this article, we will demonstrate a zero down-time data replication implementation from an Oracle 12c Pluggable Database to […]

Oracle GoldenGate: SQL Server to SQL Server Instantiation

Introduction The target database instantiation, or initial load, process is key to a successful Oracle GoldenGate implementation. In this article we shall present best practices when instantiating a target Microsoft SQL Server database from a source SQL Server database when implementing Oracle GoldenGate. Main Article When planning a target database instantiation, there are several questions […]

Oracle GoldenGate: Network Apply to SQL Server

Introduction Oracle GoldenGate (OGG) best practices dictate that the OGG Apply process run on the target database server. However, there are instances where this configuration is not practical. In this article we shall discuss a solution where OGG Apply may be configured on a mid-tier server and apply data over a network to a remote SQL […]

Oracle GoldenGate: Replicating “Soft” Deletes To Data Warehouses

Introduction We receive a lot of questions on how to setup Oracle GoldenGate to perform “soft” deletes in Data Warehouses. By default, Oracle GoldenGate replicates data operations exactly as they occur in the source database; however, in Data Warehouses their is typically a requirement to retain the original data record and set a flag that […]

Oracle GoldenGate: Working With Tokens and Environment Variables

Introduction Oracle GoldenGate contains advanced functionality that exposes a wealth of information users may leverage. In this article we shall discuss three of these, TOKENS; which is user defined data written to Oracle GoldenGate Trails, the Column Conversion Function @TOKEN; which is used to retrieve the token data from the Oracle GoldenGate Trail, and the […]

Oracle GoldenGate: Tables Without Keys

Introduction For data replication products like Oracle GoldenGate (OGG), it is typically a best practice to have a primary key or unique index defined for tables being replicated. However, in practice this may not be possible when working with poorly designed databases or legacy applications. In this article we shall detail OGG’s rules for determining […]

An ODI Journalizing Knowledge Module for GoldenGate Integrated Replicat

One of the new features in GoldenGate 12c is the Integrated Replicat apply mode. All out-of-the-box versions of the ODI JKM for GoldenGate to this date were designed for the Classic Replicat apply mode and they rely on the Checkpoint table maintained by GoldenGate. This table is used to figure out which changed records can […]

Understanding the ODI JKMs and how they work with Oracle GoldenGate

Introduction The best option for ODI Changed Data Capture is to leverage Oracle GoldenGate. To understand how to best leverage the out-of-the-box integration between ODI and GoldenGate, we will review how ODI handles CDC with an in depth explanation of the JKMs principles, then expand this explanation to the specifics of the ODI-GoldenGate integration. Understanding […]