Book Image

Oracle Information Integration, Migration, and Consolidation

Book Image

Oracle Information Integration, Migration, and Consolidation

Overview of this book

The book covers data migration, data consolidation, and data integration, the three scenarios that are typically part of the information integration life cycle. Organizations typically find themselves migrating data to Oracle and either later, or at the same time, consolidating multiple database instances into a single global instance for a department, or even an entire company. The business savings and technical benefits of data consolidation cannot be overlooked, and this book will help you to use Oracle's technology to achieve these goals. This highly practical and business-applicable book will teach you to be successful with the latest Oracle data and application integration, migration, information life-cycle management, and consolidation products and technologies.In this book, you will gain hands-on advice about data consolidation, integration, and migration using tools and best practices. Along the way you will leverage products like Oracle Data Integrator, Oracle GoldenGate, and SQL Developer, as well as Data Hubs and 11gR2 Database. The book covers everything from the early background of information integration and the impact of SOA, to products like Oracle GoldenGate and Oracle Data Integrator. By the end you'll have a clear idea of where information and application integration is headed and how to plan your own projects.
Table of Contents (17 chapters)
Oracle Information Integration, Migration, and Consolidation
Credits
About The Author
About the Contributing Authors
About the Reviewers
www.PacktPub.com
Preface

Database schema migration challenges


Relational databases differ in naming conventions for tables, columns, and other objects. They also differ in how the object names are stored in the database and how they can be referred to in SQL queries and transactions. All database migration tools currently in use by customers, including SQL Developer, do a pretty good job of converting non-Oracle database schemas to Oracle. The most common issues that show up during a database migration to Oracle are discussed in the following sections.

Database object naming/definition issues

The Oracle database has placed certain restrictions on what is allowed for naming/defining objects in the database and how these objects are subsequently accessed. Broadly, the object naming issues can be classified into four categories:

  • Use of special characters in object names

  • Use of reserved words in object names/definitions

  • Case-sensitive object names

  • Length of object names

SQL Developer assists in identifying, resolving these...