Posted on Thursday, February 10, 2011 at 4:40 AM
If you are using a Microsoft SQL database for storing your valuable business transactions and financial information, then, any instance of database corruption can be a huge blow to your business. The damage to the database can result in the complete inaccessibility of the data stored n it. In such cases, you can run ‘DBCC CHECKDB’ from the command-line, which can repair and fix the MS SQL database errors. If with higher degree of corruption, the database DBCC CHECKDB fails to resolve the problem, you can always run an reliable SQL repair utility to accomplish the job safely.
Following are some of the error messages, which you may encounter, while trying to fix them with DBCC CHECKDB command:
“Server: Msg 8905, Level 16, State 1, Line 0
Extent (1:6945928) in database ID 8 is marked allocated in the GAM, but no SGAM or IAM has allocated it.
Server: Msg 8905, Level 16, State 1, Line 0
Extent (1:6945936) in database ID 8 is marked allocated in the GAM, but no SGAM or IAM has allocated it...
Posted on Wednesday, December 08, 2010 at 4:17 AM
The technique used in locating and placing data in SQL Server Database is known as B-tree. A B-tree contains a tree-level page that maintains and stores a key value for each child page. In case, the child page is leaf-level page, then all records stored on the tree-level page should contain key values equal to or greater than the key value stored in parent page. However, in case the child page is tree-level page, then all records stored on the tree-level page should contain key value that is equal to the value stored in parent page. Corruption in B-tree results in changing the values of tree-level values, further resulting in the inaccessibility of database records. The best way to surmount any B-tree corruption scenario is by restoring the data from an updated backup. But, in case of absence of an updated backup, you will need to opt for an advanced sql database repair application that can repair your database and provide access to all inaccessible database components...
Posted on Monday, November 22, 2010 at 4:11 AM
The fast results of SQL queries is a result of b-tree indexes used by a SQL Server. A single B-tree consists of number of index nodes, root nodes, branch nodes, and leaf nodes that enable you to systematically store your data.
Corruption in any of the nodes (specially index nodes) can result into inaccessibility of records stored in the database. In most of these situations, you encounter an error message stating the exact cause. To surpass the above database inaccessibility circumstances, you will need to use restore the data stored from an updated backup. However, in absence of an updated backup or backup falls short to restore the required data, then you will need to search for advanced third-party sql repair application.
Consider a practical scenario, where you receive the below error message when you attempt view the records saved in your SQL Server database:
Table error: Object ID O_ID, index ID I_ID. B-tree chain linkage mismatch. P_ID1->next = P_ID2, but P_ID2->Prev =P_ID3...
Posted on Thursday, September 02, 2010 at 4:01 AM
An extent in the SQL Server databases is a collection of eight consecutive pages, whose details are stored in an IAM (Index Allocation Map) page. An IAM page stores the details of an object and index with the information of the previous and next objects as well. However, sometimes the IAM definitions get corrupt due to issues like header corruption, virus infections, damaged hardware parts, etc. For such cases, you can adopt corrective measures to rectify the issue. If none of the measures works, then there is a need of using a professional
MDF file repair software to perform MDF recovery.
Looking at a practical situation in which you encounter the following error while working on an MS SQL Server 2000 database:
“Page P_ID in database ID DB_ID is allocated to both object ID O_ID1, index ID I_ID1, and object ID O_ID2, index ID I_ID2.”
Cause:
This problem has appeared as the P_ID page is allocated to two different objects, which is incorrect...
Posted on Thursday, August 26, 2010 at 4:37 AM
Are you facing problems while using MS SQL Server 2008 database? Then, there may be chances that the database may have got corrupt. The database corruption can occur due to various reasons such as virus infections, abrupt system shutdown when the database is open, hardware problems, etc. Due to database corruption, you would not be able to access the database or face abrupt behavior. In such cases, you should perform appropriate SQL repair methods to solve the problem. If you are unable to repair MDF file, then you should use a third-party MS SQL repair software to do the needful for you.
Consider a scenario wherein you encounter the following error message while working on an MS SQL Server 2008 database:
"Table error: Object ID O_ID, index ID I_ID, partition ID PN_ID, alloc unit ID A_ID (type TYPE), page P_ID, row ROW_ID. Record check (CHECK_TEXT) failed. Values are VALUE1 and VALUE2."
Cause:
The root cause of such behavior is that the ROW_ID row (mentioned in the error message) failed the condition asked in the CHECK_TEXT...
Posted on Friday, August 20, 2010 at 9:36 PM
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http://www.americanchronicle.com/articles/view/177453. If you have still problem regarding mdf file corruption then have a look on this
repair mdf file software. This software may help you more.
Posted on Thursday, May 20, 2010 at 5:13 AM
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:...
Posted on Monday, May 17, 2010 at 2:50 AM
It is always frustrating to view an error message while trying to mount your database. The error message not only results in unmountability of the database, but also in inaccessibility of database records. Such error messages can be caused due to database corruption. Few main reasons responsible database corruption are metadata structure damage, network issues, hardware malfunction, improper system shutdown, and virus infections. To overcome such error messages, the database administrator needs to run an inbuilt repair utility named 'DBCC CHECKDB'. While this command is competent enough to repair a damaged SQL Server 2000 database, it might also result in loss of data from the database. To prevent any such data loss situation from occuring, you will need to repair the database by using a powerful
MDF Database Repair application.
To explain the above situation in detail, consider a real-time scenario where you encounter a severity level 16 error message while trying to mount your SQL Server 2000 database:...
Posted on Friday, May 14, 2010 at 4:35 AM
A filegroup in MS SQL Server database is mainly a logical storage unit that saves database components, which map to multiple or a single file. Corruption in file groups can occur due to various reasons like improper system shutdown, application malfunction, metadata structure damage, virus infection, and more. In most of these situations, the database becomes unmountable and its records become inaccessible. An easy alternative to get past such SQL database corruption scenarios is by executing DBCC CHECKDB command. The command although successful in resolving all corruption scenarios can also fail in certain situations. These situations force the user to replace corrupt database with a valid and complete database backup. However, in case of unavailability of a valid database backup, you will need to opt for an effective
MDF File Repair application.
To illustrate the above case, consider a real-time scenario wherein you receive the below error message while trying to mount your SQL Server database:...
Posted on Wednesday, April 28, 2010 at 9:23 PM
Records stored in a MS SQL Server table become inaccessible when it gets corrupted due to record header corruption, metadata structure damage, application malfunction, and concurrent modification. To surmount table corruption, MS SQL Server provides an inbuilt table repair command known as 'DBCC CHECKTABLE'. The command checks the logical and physical integrity of the corrupted table and the indexed view. While in most cases, the command is successful in repairing corrupted tables, there are a few instances where the command falls short in repairing the MS SQL Server table. In such situations, the command displays an error message, exhibiting the exact reason for its failure. The table remains corrupt after DBCC CHECKTABLE failure message. To overcome such table corruption, an ideal option is to restore the table from an updated backup. However, in the absence of or in case of deficient table backup, the user needs to use a powerful third-party
MDF Repair utility...
