Corruption in MS SQL database is categorized into two forms – Logical and Physical. While the physical database corruption scenarios include damage of system components, the logical corruption situations only relate to software issues. The outcome for database corruption caused due to either of the two reasons in most cases is, unmountability of the database. An unmountable database does not allow you to access the records stored in the database. In such cases, an up-to-date backup (usually maintained by all the database users) allows you to restore the data and continue with your work. However, there have been thousands of case studies where either the user forgets to create an adequate backup or backup file itself gets corrupt. For such situations, the user needs to search for an effective MS Recover SQL application (for logical corruption) and database repair services (for physical crash scenarios).
Some of the most common logical corruption scenarios after which the database becomes unmountable are mentioned below:
Metadata structure damage
Operating system malfunction
File system damage
Virus attack
Simultaneous modification of same database component
Human errors
To repair the database after it gets corrupted due to any of the above reasons, you will need to run DBCC CHECKDB command. This command allows you to identify the level of corruption. Next, you will need to execute the same command with an appropriate repair clause.
While the above command allows you to repair database corruption in most of the situations, it might fail to repair in case the database is severely corrupted. For such situations, in case of no backup availability, you will need to use advanced third-party SQL Database Repair application. A MS SQL Recovery tool instantly repairs corrupt databases post any logical corruption scenario. It uses intensive scanning methods to scan and repair corrupt MS SQL databases. The read only software do not overwrite, change, or delete the data stored in the original database. Built with highly interactive user documentation, these tools are easy to understand and implement.
