To perform database operations from application, generally DAL uses some db utilities helps to write minimal lines of codes to perform data operations. In the data utility classes, some classes and methods might be specific to vendor (for instance, SQLHelper class will only work to perform operations on MS SQL Server) and some classes and methods might be used regardless of database vendors. These issues, along with the boundaries, should be addressed here.
Print | posted on Monday, April 21, 2008 12:18 PM