The reason so much effort should be put into backing up your databases is to provide you with the ability to recover from these backups in the event of failures. This section provides the basic information you'll need to be able to restore your databases completely to a point in time or to the point of failure. It will also review the methods you can use to restore the system databases should they become corrupted.
You can restore databases to a point in time, to the point of failure, or to a full backup made at a specific point. Before you begin, however, it is important that you understand the limitations you impose on yourself through your backup plan. Here are some examples: