Author : Amelia Williams |
The SQL Server database files (MDF, NDF, and LDF) should be properly stored and maintained as they involve critical data. Such data are frequently retrieved, stored, and managed, so it is very important to maintain the integrity of the data. If such data are not handled properly, it makes them prone to failure and corruption.
There are various corruption scenarios arising in MS SQL Server, which can be overcome by performing SQL Server Recovery. The process of recovering corrupt MDF file depends upon the level of corruption. In most cases, a corrupt MDF file can be recovered using inbuilt tools. However, it is always good to have a professional SQL recovery software.
Causes of Corruption
The SQL server databases file corruption makes the database objects inaccessible However, in case of severe corruption it can even lead to data loss. There are various factors that can make the SQL server database file corrupt. Some of the common causes of MDF file corruption are mentioned below.
Common Error Messages
Almost all corruption scenarios lead to the inaccessibility of the database. More often, they are supported by various error messages. Such error messages usually appear up while accessing the corrupt or damaged database. The error message tells you about the cause of corruption as well as possible solution at times. Some of the common error messages that could appear while accessing corrupt MDF file are mentioned below.
There are a lot of other error messages related to corrupt database. In any of the case, it restricts the access to the database. Handling such errors related to file corruption is very tough task for a SQL database admin.
Inbuilt Solution (dbcc checkdb)
In order to overcome the situation of corrupt SQL server MDF file, you can make use of the free inbuilt utility provided by Microsoft. DBCC CHECKDB is a tool to check the SQL server database object's integrity and perform Microsoft SQL recovery.
The command runs on the corrupt SQL database file, finds the point of failure and performs MS SQL data recovery. However, at times the DBCC CHECKDB command fails to resolve the error. This is mostly when the MDF file is severely corrupt.
Note: There are many variants of the DBCC CHECKDB command meant for different purposes. For example, the DBCC CHECKALLOC command is used to check the consistency of disk space allocation. The DBCC CHECKTABLE command is used to check the integrity of all the pages and the DBCC CHECKCATALOG is used to check the catalog consistency. However, running DBCC CHECKDB command does not require running these commands separately.
Solution - Stellar Repair for MS SQL
In order to repair the corrupt MDF file, you need to have a professional SQL database repair tool.Stellar Repair for MS SQL is a very professional and reliable tool to repair corrupt MDF and NDF file of SQL server database. The tool has the ability to efficiently perform Microsoft SQL server recovery and recover tables, triggers, keys, indexes, rules, and defaults. In addition, it preserves data integrity by carrying out highest level of non-destructive repair.
In order to perform Microsoft SQL database recovery using the Stellar Repair for MS SQL, you need to follow the below-mentioned steps.