There are far too many features it adds than I should mention here. Please download the
Backup Exec for Windows Servers Administrators Guide and check page 1315 in BEWS12AdminGuide_BeAdmin_en.pdf.
To sum one thing up, restoring a database is different than that of a file. Most files are not being modified by multiple people throughout the day. Restoring a database from tape could bring you back to a point of the last successful backup, but it will not contain the latest transactions. Restoring with the latest transactions isn't always possible and is a tast best suited for the DBA. You should consult with your DBA to find out what can be done to minimize data loss and work with him/her on a backup strategy for the database.