Hi, I've been using Derby db but will very likely move my development to the Google app engine to save money and create scalable code.
Unfortunately, the Google app engine does not support schemas because apparently they would slow things down too much. Is this a general problem with relational databases? They have problems scaling efficiently? Any insight into why? Also, what's wrong with checking database integrity occasionally with respect to a schema? Wouldn't that give you the best of both worlds? Any chance that a Derby db layer could be added on top of the Google app engine to provide schema checking on demand? Amir -- http://chatbotgame.com http://numbrosia.com http://twitter.com/amichail
