Are you afraid to journal because of the potential overhead it can add to your system? Fear no more!
System i customers can receive lots of benefits from journaling their DB2 tables and files. First, journaling improves the recoverability of your databases, whether you're trying to recover from a system failure or an uncompleted business transaction. Journaling is required for any application that needs the ability to undo database changes with a rollback operation or guarantee a business transaction with a commit operation. Second, journaling provides a log of all your database changes, which can be useful to a security auditor trying to determine who changed sensitive data, such as a salary column. This log of changes can also be used by programmers when they're trying to figure out what went wrong with one of their applications.
This book isn't a training manual; it's a reference book.
The Modern RPG IV Language, Fourth Edition by Robert Cozzi, Jr. is the latest version of a book that has enjoyed a long history of popularity in the RPG community. With this book, MC Press continues its tradition of providing relevant and timely materials in a quality book format.