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Oracle Warehouse Builder 11g Getting Started

Book Description

Extract, Transform, and Load data to build a dynamic, operational data warehouse

  • Build a working data warehouse from scratch with Oracle Warehouse Builder

  • Cover techniques in Extracting, Transforming, and Loading data into your data warehouse

  • Learn about the design of a data warehouse by using a multi-dimensional design with an underlying relational star schema

  • Written in an accessible and informative style, this book helps you achieve your warehousing goals, and is loaded with screenshots, numerous tips, and strategies not found in the official user guide

In Detail

In today's economy, businesses and IT professionals cannot afford to lag behind the latest technologies. Data warehousing is a critical area to the success of many enterprises, and Oracle Warehouse Builder is a powerful tool for building data warehouses. It comes free with the latest version of the Oracle database.

Written in an accessible, informative, and focused manner, this book will teach you to use Oracle Warehouse Builder to build your data warehouse. Covering warehouse design, the import of source data, the ETL cycle and more, this book will have you up and running in next to no time.

This book will walk you through the complete process of planning, building, and deploying a data warehouse using Oracle Warehouse Builder. By the book's end, you will have built your own data warehouse from scratch.

Starting with the installation of the Oracle Database and Warehouse Builder software, this book then covers the analysis of source data, designing a data warehouse, and extracting, transforming, and loading data from the source system into the data warehouse. You'll follow the whole process with detailed screenshots of key steps along the way, alongside numerous tips and hints not covered by the official documentation.

Table of Contents

  1. Oracle Warehouse Builder 11g: Getting Started
  2. Credits
  3. About the Author
  4. About the Reviewers
  5. Preface
    1. What this book covers
    2. What you need for this book
    3. Who this book is for
    4. Conventions
    5. Reader feedback
    6. Customer support
      1. Downloading the example code for the book
      2. Errata
      3. Piracy
      4. Questions
  6. 1. An Introduction to Oracle Warehouse Builder
    1. Introduction to data warehousing
      1. Introduction to our fictional organization
      2. What is a data warehouse?
      3. Where does OWB fit in?
    2. Installation of the database and OWB
      1. Downloading the Oracle software
      2. A word about hardware and operating systems
      3. Installing Oracle database software
      4. Configuring the listener
      5. Creating the database
      6. Installing the OWB standalone software
      7. OWB components and architecture
      8. Configuring the repository and workspaces
    3. Summary
  7. 2. Defining and Importing Source Data Structures
    1. Preliminary analysis
      1. ACME Toys and Gizmos source data
      2. The POS transactional source database
      3. The web site order management database
    2. An overview of Warehouse Builder Design Center
    3. Importing/defining source metadata
      1. Creating a project
      2. Creating a module
        1. Creating an Oracle Database module
        2. Creating a SQL Server database module
          1. Creating a SQL Server database connection
          2. Configure Oracle to connect to SQL Server
            1. Creating a heterogeneous service configuration file
            2. Editing the listener.ora file
          3. Creating the Warehouse Builder ODBC module for SQL Server
      3. Importing source metadata from a database
      4. Defining source metadata manually with the Data Object Editor
      5. Importing source metadata from files
    4. Summary
  8. 3. Designing the Target Structure
    1. Data warehouse design
      1. Dimensional design
        1. Cube and dimensions
      2. Implementation of a dimensional model in a database
        1. Relational implementation (star schema)
        2. Multidimensional implementation (OLAP)
      3. Designing the ACME data warehouse
        1. Identifying the dimensions
        2. Designing the cube
    2. Data warehouse design in OWB
      1. Creating a target user and module
        1. Create a target user
        2. Create a target module
      2. OWB design objects
    3. Summary
  9. 4. Creating the Target Structure in OWB
    1. Creating dimensions in OWB
      1. The Time dimension
        1. Creating a Time dimension with the Time Dimension Wizard
      2. The Product dimension
        1. Product Attributes (attribute type)
        2. Product Levels
        3. Product Hierarchy (highest to lowest)
        4. Creating the Product dimension with the New Dimension Wizard
      3. The Store dimension
        1. Store Attributes (attribute type), data type and size, and (Identifier)
        2. Store Levels
        3. Store Hierarchy (highest to lowest)
        4. Creating the Store dimension with the New Dimension Wizard
    2. Creating a cube in OWB
      1. Creating a cube with the wizard
    3. Using the Data Object Editor
    4. Summary
  10. 5. Extract, Transform, and Load Basics
    1. ETL
      1. Manual ETL processes
    2. Staging
      1. To stage or not to stage
      2. Configuration of a staging area
    3. Mappings and operators in OWB
      1. The canvas layout
      2. OWB operators
        1. Source and target operators
        2. Data flow operators
        3. Pre/post-processing operators
    4. Summary
  11. 6. ETL: Putting it Together
    1. Designing and building an ETL mapping
      1. Designing our staging area
        1. Designing the staging area contents
        2. Building the staging area table with the Data Object Editor
      2. Designing our mapping
        1. Review of the Mapping Editor
        2. Creating a mapping
          1. Adding source tables
          2. Adding a target table
          3. Connecting source to target
            1. Joiner operator attribute groups
            2. Connecting operators to the Joiner
            3. Defining operator properties for the Joiner
            4. Adding an Aggregator operator
    2. Summary
  12. 7. ETL: Transformations and Other Operators
    1. STORE mapping
      1. Adding source and target operators
      2. Adding Transformation Operators
      3. Using a Key Lookup operator
        1. Creating an external table
        2. Creating and loading a lookup table
        3. Retrieving the key to use for a Lookup Operator
          1. Adding a SUBSTR Transformation Operator
          2. Adding a Constant operator
          3. Adding a TO_NUMBER transformation
        4. Adding a Key Lookup operator
    2. PRODUCT mapping
    3. SALES cube mapping
      1. Dimension attributes in the cube
      2. Measures and other attributes in the cube
      3. Mapping values to cube attributes
        1. Mapping measures' values to a cube
        2. Mapping PRODUCT and STORE dimension values to the cube
        3. Mapping DATE_DIM values to the cube
          1. Mapping an Expression operator
    4. Features and benefits of OWB
    5. Summary
  13. 8. Validating, Generating, Deploying, and Executing Objects
    1. Validating
      1. Validating in the Design Center
      2. Validating from the editors
        1. Validating in the Data Object Editor
        2. Validating in the Mapping Editor
    2. Generating
      1. Generating in the Design Center
      2. Generating from the editors
        1. Generating in the Data Object Editor
        2. Generating in the Mapping Editor
          1. Default operating mode of the mapping
          2. Selecting the generation style
    3. Deploying
      1. The Control Center Service
      2. Deploying in the Design Center and Data Object Editor
      3. The Control Center Manager
        1. The Control Center Manager window overview
          1. The Object Details window
          2. The Control Center Jobs window
        2. Deploying in the Control Center Manager
    4. Executing
    5. Deploying and executing remaining objects
      1. Deployment Order
      2. Execution order
    6. Summary
  14. 9. Extra Features
    1. Additional editing features
      1. Metadata change management
        1. Recycle Bin
        2. Cut, copy, and paste
        3. Snapshots
        4. Metadata Loader (MDL) exports and imports
      2. Synchronizing objects
        1. Changes to tables
          1. Updating object definitions
          2. Synchronizing
            1. Inbound or outbound
            2. Matching and synchronizing strategy
            3. Viewing the synchronization plan
        2. Changes to dimensional objects and auto-binding
    2. Warehouse Builder online resources
    3. Summary