Practical Guide to Data Warehousing in Oracle

Dave Aldridge's A Practical Guide to Data Warehousing in Oracle makes for excellent reading. Making the mental leap from OLTP to data warehousing is a daunting prospect. This series of articles is intended to be a reference to answer both questions you have and those that you don't even suspect you need answers to. As an introduction to the series, Dave Aldridge discusses a few high-level differences between OLTP and Data Warehousing systems.