Software and hardware malfunctions are the primary cause for any file – including MDF – damage. Few common corruption scenarios for a MDF file damage are improper system shutdown, virus infection, simultaneous modifications, header corruption, application malfunction, flood, fire, and more. To overcome either of the situations, the database user can restore the data from an updated backup. However, in case of no backup or backup falling short of restore the required MDF file, the user needs to perform MDF database repair. While MDF file corrupted due to physical damages need assistance of rich-experienced database repair technicians, logically damaged MDF files can be repaired using an effective third-party database repair application.
To illustrate the above case, consider a practical situation where you have a MDF file that contains your MS SQL Server 2005 database. The database was mounting systematically, until you encountered the below error message:
“Warning: Page P_ID, slot S_ID in Object O_ID Index I_ID Column COLUMN_NAME value COLUMN_VALUE is out of range for data type "DATATYPE". Update column to a legal value.”
After the above error message appeared, the database became unmountable and its records unreadable. In addition, the same error message appeared every time you try to access the MDF file. This is a severity level 16 error message.
The above error message occurs after MDF file corruption due to logical or physical reason.
To get rid of the above MDF file corruption error message and to access the database saved in the MDF files, you will need to follow the below steps:
Try and perform restoration from an updated backup.
In case of no database backup, you will need to take below actions:
In case of any physical damage, you will need to change the physically corrupted system component. In order to identify the corrupted component, you will need to check the application and system logs.
In case of logical damage of MDF file, you will need to use a third-party MDF File Repair application. These MDF recovery applications use effective repair techniques to repair corrupted MDF files after any logical damage. The original file, however, remains intact during the repair process.