This week's book giveaway is in the Performance forum. We're giving away four copies of The Java Performance Companion and have Charlie Hunt, Monica Beckwith, Poonam Parhar, & Bengt Rutisson on-line! See this thread for details.
writable views? I've not heard that term, but it could be another name for updatable views. Views are used as read only things normally, however if you write them to meet certain contitions you can update the data via the view. Such conditions could include: