Juan, > > Does anyone knows good and specialized resources for java for dbas > exclusively What are you looking for? - A list that helps a DBA talk to Java developers? - A list related to JDBC? - A list devoted to the Java modules stored in Oracle and executed by the JVM? My experience is that Java developers think the world revolves around Java. The database is merely a way to persist the data. As such they don't want to consider anything other than "pure" Java, only modestly cluttered by "old / legacy" database concepts. Tips: - Learn as much about Java programming as you can so you can knowledgably talk to your Java developers, using their terms. - Try to convince the Java developers that they should start with an ERD. Emphasize that the data is an enterprise resource and not the sole province of their Java classes. - Try to understand their transaction mechanism. With a GUI-based system implemented by classes that call other classes, it can become difficult to get to a COMMIT statement. Naturally transaction is a database concept, not a Java concept. It isn't that they are stupid, just a limitation of their Java environment. Dennis Williams