This week's book giveaway is in the OCMJEA forum. We're giving away four copies of OCM Java EE 6 Enterprise Architect Exam Guide and have Paul Allen & Joseph Bambara on-line! See this thread for details.
Each database has its own characteristics and the same SQL statements will not necessarily work on all of them.
In that case, it it seems better to write code for each database instead of one big class that can handle all databases.
Is it possible to make your code database agnostic ? If so, how can we do that ?