The data quality must be kept intact and the method to keep up is difficult to maintain for multiple databases and a VLDB environment too. The default response to recover the data from a disaster is to restore it from the backup tape of a file, but in cases where the source media such as a tape is crinkled or the backup file server disk has a problem, the recovery can be expensive. In this case, gigabytes of data might be lost just because of a hardware problem. There are few methods available in SQL Server to recover the data using the database consistency process, which involves a repair of corrupted data stored within the database.

As mentioned earlier, the data recovery will involve a REPAIR option that must be used as a last resort. Using this option might present a potential risk of losing database pages that will cause further data loss. However, if a nonclustered index...