In MS SQL Server, the CHECKTABLE command is used to check the integrity of the database tables. To do this, it uses several parameters to perform different types of checks. However, if the table is corrupt then this command may not work and exit abruptly. Such database corruption may cause because of several issues including virus infections, hardware malfunctioning, etc. These cases can well be solved using appropriate corrective measures failing which you should use a third-party MS SQL repair software to do the needful.

Consider a scenario in which you are running the CHECKTABLE tool on a database in MS SQL Server 2000. However, the tool fails to execute and exits abruptly showing the following error message.

"CHECKTABLE terminated. A failure was detected while collecting facts. Possibly tempdb out of space or a system table is inconsistent. Check previous errors."

Cause:...

DBCC CHECKALLOC is a common command that is used by database users to check the consistency of disk space allocation. The command comprehensively examines the use and allocation of all pages in your specified database. However, if examining the pages, the command displays an error message, then it means that your database pages have been corrupted or damaged. Furthermore, the data stored in the database becomes inaccessible after the error message appears. An ideal way to access your data in such situations is by restoring the data from an updated backup. But if in case, your database backup has been corrupted or damaged, then you will need to use advance SQL Repair application to repair your database.

As a practical instance, you encounter the below error message when you run DBCC CHECKALLOC command:

"Table error: Page %S_PGID is allocated to object ID %d, index ID %d, not to object ID %d, index ID %d found in page header."

After the above error message appears, the data stored in the database becomes inaccessible...

MS SQL Server database is build up of various metadata structure components like, pages, extent, etc. Pages are the smallest unit of data storage that store actual data. A combination of 8 adjacent pages makes an Extent. Corruption or damage in metadata structure primarily results in inaccessibility of records stored in your database. In most of the database corruption situation, you encounter an error message stating the cause for the error. For successful access of records stored in your database and overcoming hazards created by error message, an easy way is to restore the database records from an updated backup. But if in case, your backup file has been corrupted, damaged, or unreadable, then you will need to use advanced repair software that can comprehensively repair MDF files.

Consider a practical case, where you encounter the below error message when you attempt to access the records stored in your MS SQL Server database:

"Table error: Extent P_ID object ID O_ID, index ID I_ID is beyond the range of this database."...

You must have encountered the table error messages while accessing the MS SQL Server database tables. These errors occur because of some integrity issues in the database tables. Sometimes, the integrity issues can take place because of having a corrupt database. And a database can get corrupted because of various internal and external issues such as virus attacks, human errors like improper system shutdown especially when the database is open, sudden power fluctuations, data integrity issues due to mishandling the database such as changing the structure of the database, multiple users trying to change the database table simultaneously, etc. Because of the table errors you can face various problems such as partially or completely inaccessible database, retrieving corrupt records, regularly displaying error and warning messages, and so on. These problems are bound to pose serious threats especially when you are working on a real-time environment. To counter such situations, you can restore the database by overwriting it with its updated backup. However, if the backup is not the updated one then you will have to use the advanced SQL Database Recovery application to repair the corrupt database...

Are you facing problems while working on a particular MS SQL Server 2000 database? If yes, then you should see if the same problem is reproducing on other databases as well. If not, then there are very strong chances that the database is corrupt. It could have become corrupt owing to miscellaneous reasons such as virus infections, malfunctioning of the hardware components, abrupt system shutdown while the database is open, etc. In such cases, you should fix the error by repairing SQL database failing which you should use a third-partySQL repair software.

Let us take a case in which you are getting the following error while working on the MS SQL Server 2000 database:

"Table error: Cross object linkage: Parent page P_ID1, slot S_ID1 in object ID O_ID1, index ID I_ID1, and page P_ID2, slot S_ID2 in object ID O_ID2, index ID I_ID2, next refer to page P_ID3 but are not in the same object."

Cause:

The problem in this case is due to the corruption in the page definitions in the SQL database...

The PFS (Page Free Space) pages in the MS SQL Server databases are used to search for free space in the database tables. It holds a byte-map which contains one byte per page that is represented by P_ID. Sometimes, you are unable to read the PFS page that can happen due to database corruption. The corruption cases are caused due to various issues such as abrupt or improper system shutdown when the database is open, virus infections, etc. In such circumstances, you should try to recover SQL database using appropriate methods. If you are unable to workaround the issue, then you should use a third-party SQL database recovery software to address the problem.

Consider a scenario wherein you are facing the following error message while working on an MS SQL Server 2000 database:

"Object ID O_ID, index ID I_ID: Page P_ID could not be processed. See other errors for details."

Cause:

The most prominent cause of this problem is that the P_ID page was marked as allocated in a PFS page. But, when the page was read, the reading failed resulting in this error...

In the MS SQL Server databases, the IAM (Index Allocation Map), GAM (Global Allocation Map), SGAM (Shared GAM) are different types of pages that are used to store the records on the hard disks. These pages combine together in an extent, which is used to hold the metadata of the databases. A lot of times due to the mismatching in these files, the database gets corrupt and does not work properly. In such cases, you should try to repair MDF file using appropriate measures. However, if the problem is not addressed, then there is a strong case of using a third-party SQL repair software.

Consider a situation in which you are facing the following error message while working on an MS SQL Server 2000 database:

“Extent E_ID in database ID DB_ID is allocated in both GAM GAM_P_ID and SGAM SGAM_P_ID.”

Cause:

The error has occurred because of corruption in the extents due to the irregularities in the IAM, GAM, and SGAM pages.

Resolution:...

In an MS SQL table, a text node is used to save the data that is stored in the rows of the records. Every text node contains a parent node and is formulated in either a B-tree or a heap format. At times, when the text node becomes damaged then you are unable to access the data in the tables. Such problems can occur due to various issues such as virus infections, hardware malfunctioning, database header corruption, etc. You should perform appropriate workarounds to repair MDF file failing which you can try a third-party SQL repair software to repair SQL database.

Taking a practical scenario into account in which you are getting the following error message while working on an MS SQL Server 2000 database:

"Object ID O_ID: Errors found in text ID TEXT_ID owned by data record identified by RID."

Cause: The primary cause of this problem is that there is corruption in a text node. Usually, Error 8962 and/or 8963 also appear with this error message...

You must have experienced cases of database corruption more often than not. When you face database corruption, you are unable to work further on the database. These instances can occur due to any arbitrary reason. Some of the most prominent ones could be unplanned system shutdown especially when the database is open, page header corruption, virus infections in the database, etc. You can repair SQL database by using few workarounds. However, if nothing works fine then using a third-party SQL repair software is the best option.

For instance, the following error message appears while you are working on an MS SQL Server 2008 database:

“Table error: alloc unit ID A_ID, page P_ID. The test (TEST) failed. The values are VAL1 and VAL2.”

Cause:

Such problem has happened as a database page, P_ID, has not passed auditing test because of page header corruption. You can refer to the error message where it is clearly shown that the TEST string has failed the test.

Resolution:...

In MS SQL Server database, a page is used as the most primitive unit of storage as the space allocated to every database file. And a collection of eight pages is called an extent, which is used to manage the pages. However, sometimes SQL Server is unable to read through the properties of these pages. Such problems can invariably occur due to various issues such as virus infections, power outages, hardware problems, abrupt system shutdown when the database is open, etc. In such cases, you should find out the exact cause of corruption and try to isolate it. If any of the methods do not succeed, then you should use a third-party SQL repair software to repair SQL database.

Consider a scenario wherein you encounter the following error message while working on an MS SQL Server 2008 database:

"Process ID %d attempted to unlock a resource it does not own: %.*ls. Retry the transaction, because this error may be caused by a timing condition. If the problem persists, contact the database administrator."...

Are you using SQL Server 2008 in your organization to carry out enterprise solutions? If yes, then are you experiencing problems in using the database on a regular basis? If this is so, then there are chances that the database may have corrupted because of various reasons. Such reasons could be virus infections, power outages, abrupt system shutdown when the database is open, hardware malfunctioning, etc. In such cases, you should use appropriate corrective measures to repair SQL database. If you are not able to provide any solution, then you should use a third-party MS SQL repair software to do the needful.

Consider a scenario wherein you get the following error message while working on an 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). The off-row data node at page P_ID1, slot S_ID1, text ID TEXT_ID is pointed to by page P_ID2, slot S_ID2 and by page P_ID3, slot P_ID3.”...