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MDF database recovery utility to deal with Table error Extent P_ID range of this database

williumdavid — Wed, 23 Mar 2011 23:43:10 -0700

While working on your SQL Server database, sometimes the database tables become completely inaccessible following any corruption or damage to the database. The reason behind the corruption can be virus attack, file system corruption, application malfunction, simultaneous access by the number of users beyond the upper load limit etc. In any of these situations, the database flashes some sort of error message, which points toward a possible problem with the database. You need to resolve the error to regain access to the database tables. However, if you failed to resolve the issue, there are third-party SQL database recovery tools available, which can help you recover the database back.

The error message that you may have encountered can be read as below:

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

After encountering the error message, you can not be able to access any record from the SQL database and receive the same error, each time you try to access any table.

Causes: The above error tells that the size of the pageinfile of the SQL database has been greater than the physical size of the filenum. Here, the P_ID is the PageID of the filenum:pageinfile form. This is the reason behind the error and may have been occurred due to a possible metadata structure corruption.

Resolution: In order to resolve the problem, you have to run the DBCC CHECKDB command with appropriate clause. This will repair the corrupt database.

If you failed to resolve the problem, you have to look for your backup server for any available valid backup. But, if you have not taken any backup recently or there occurs any error while resolving the problem, you are left with a single choice of running any mdf database recovery software.

These mdf file recovery utilities are designed with powerful algorithms to repair the database and recover various objects, including the tables, views, forms, containers etc with ease. These SQL recovery applications are completely read-only in nature and do not modify the database by any degree. Moreover, with the highly interactive graphical user interface, any user can use the software and retrieve his data without even any further assistance.

Stellar Phoenix SQL Recovery is a highly reliable mdf recovery application to repair the damaged SQL database and recover the data back. The software works on SQL Server 2008, 2005, 2000 databases and is pretty easy to use even on the parts of non-technical users. The software is compatible with Windows 7, Server 2008, Vista, Server 2003, XP, 2000 and is absolutely risk-free in its recovery process.

Reliable mdf repair utility for risk-free recovery of your SQL server database

williumdavid — Thu, 10 Feb 2011 04:40:34 -0700

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.
Server: Msg 8905, Level 16, State 1, Line 0
Extent (1:6945944) in database ID 8 is marked allocated in the GAM, but no SGAM or IAM has allocated it.

The command fails to resolve the issues and further flashes the below messages:

Repairing this error requires other errors to be corrected first.
Repairing this error requires other errors to be corrected first.
Repairing this error requires other errors to be corrected first.
Repairing this error requires other errors to be corrected first.”

Cause:
The MS SQL Server database has been severely damaged and DBCC CHECKDB is unable to repair the same.

The best possible way to get the database and the data back is to restore it from a valid backup. If you have not taken any backup recently or there are any unresolved problem in restoring it from the backup server, then, you have to look for any good mdf repair utility.

These SQL recovery software are meant to repair the corrupt SQL database and recover the tables, schema, triggers, containers etc with their originality being intact.

Stellar Phoenix SQL Recovery is a trusted utility to safely repair SQL database and recover your data without any alteration to the database. This efficient utility is capable of repairing the MS SQL Server 2008, 20005, 2000 databases and is completely compatible with Windows 7, Vista, 2008, XP, 2003 and 2000 operating systems.

Binary Tree Corruption cause Data Loss in SQL Server

williumdavid — Fri, 28 Jan 2011 01:39:56 -0700

Microsoft SQL Server database supports binary tree indexes for fast query. The pages of Binary tree index are known as index nodes, the top node of binary tree is known as root node. However, the middle nodes are known as branch nodes and bottom nodes are known as leaf nodes. If table indexes get damaged, SQL Server database shows an error message and you unable to access your SQL database. To resolve such situations, you should use your most latest backup and restore the lost data. Sometimes, backup fails to restore the database and thus, you need to use SQL database recovery software.

You are working on SQL Server database wherein, You might get below error message:

Server: Msg 8936, Level 16, State 1, Line 1
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.

Root Cause of Problem:

The above error message appears when SQL Server database find a break in logical page chain at any level of Binary tree. It can happen at any level of binary tree including root, middle and leaf nodes.

Resolution:

For solving the above error message, you should follow the given below steps:

Run the hardware diagnostics as above problem could occur due to hardware problems. Fix the hardware problems, if any.
If the problem persists still then restore the corrupted SQL Server database from a latest and clean backup.
In case of unavailability of valid SQL server backup, you could run DBCC CHECKDB command to find the amount of corruption and note the repair clause. Again run DBCC CHECKDB command with suggested repair clause.
If database still unaccessible, you should use an advanced SQL database recovery tool.

These SQL database recovery tools are advanced tools that can effectively repair and restore corrupted SQL databases. Such tools are equipped with rich GUI, to-the-point documentation. You can freely use these software for repairing and restoring corrupted or damaged SQL Server database in any case of SQL database corruption.

The most trusted SQL Database recovery tool by the many database administrator is Stellar Phoenix SQL Recovery tool. It is a complete repair software for damaged or corrupted SQL Server databases. This software supports mdf recovery for SQL Server 2008, 2005 and 2000. It is available with advanced graphical user interface and restores all database objects like tables, triggers, user defined data types, stored procedures, collation views, rules and many more. The software is compatible with Windows Vista, XP, 2003, 2000, NT and 7.0.

Recover SQL Server Database from Corrupted Table

williumdavid — Thu, 20 Jan 2011 21:28:03 -0700

Sometimes when you want to update or delete SQL server database table and got an error message that shows your SQL server database table has been corrupted. This may happen by the several reasons some of them are improper system shutdown, virus attack, hardware failure, power failure and many more. At this situation you will be unable to access your SQL server database table. For fixing this problem you should use an advanced SQL server recovery software that will repair and restore your damaged SQL server database table.

Consider a practical scenario wherein, you may encounter the given below error messages while your are trying to update, delete or open an SQL server database table:

“Error: 644, Severity: 21, State: 5
Could not find the index entry for RID '1613b1000000100' in index page (1:189), index ID 7, database 'TestDB'..
Error: 8646, Severity: 21, State: 1
The index entry for row ID was not found in index ID 7, of table 2009058193, in database 'test644'.”

Particularly the above error message occur on the non-clustered index of Microsoft SQL server database but sometimes this problem also occurs with the clustered SQL server database database.

Resolution: For restoring corrupt SQL server database table, you have four option which are given below:

Fix Hardware Issue: Check the hardware of the system if you find any faulty hardware then replace it with the new one.
Restore from Backup: Restore it from the latest backup, if backup is clean and updated.
Run DBCC CHECKDB: Run this command to fix the problem.
Re-built Indexes: If possible then rebuilt indexes of table but it is not the better idea.

After performing three above steps and you are still unable to fix the problem then the best idea is to buy an advanced third party SQL recovery software to fix the problem.

Stellar Phoenix SQL Database Recovery is an MDF recovery software that is able to repair MDF as well as NDF files from all instances of corruption. It repairs corrupted MDF, NDF files created in SQL Server 2000, 2005, and 2008. This MDF file repair tool is capable of recovering various database components such as tables, stored procedures, views, collations, queries, triggers, etc. It is compatible with Windows 7, Vista, Server 2003, XP, and 2000.

How to Resolve a "High Key Value on Page" Error Message

williumdavid — Wed, 08 Dec 2010 04:17:04 -0700

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.

Consider a scenario, where you receive the underneath error message when you attempt to mount your database:

- Table error: Object ID O_ID, index ID I_ID. The high key value on page P_ID1 (level LEVEL) is not less than the low key value in the parent P_ID2, slot S_ID of the next page P_ID3.
- Records saved in your database becomes inaccessible after the above error message appears.

Root Cause:

The main reason responsible for the occurrence of the above error message is corruption of metadata structure (B-tree values). Corruption can occur due to logical or physical damages.

How to Resolve:

For complete resolution of error message caused either due to logical or physical corruption, follow the below steps:
- In case of physical damage, swap the damaged system component with a new one.
- In case of logical corruption, run DBCC CHECKDB command (with correct repair clause).

While changing the hardware component completely resolves physical damage issues, DBCC CHECKDB command does not assure complete repair in all logical corruption scenarios. For such situations, you will need to use a powerful SQL Repair tool. These sql database repair utilities use effective scanning algorithms to systematically scan and repair the corrupted database.

SQL Recovery is a user-friendly software that safely repairs created in SQL Server 2008, 2005, and 2000. Built with interactive user-interface, the sql repair software recovers almost all database components, such as, tables, stored procedures, views, etc.

Adishree Singh work as a freelancer and researcher repair sql & repair sql database software.

Article Source: http://EzineArticles.com/?expert=Adishree_Singh

How to Resolve "B-Tree Chain Linkage Mismatch" Error Message

williumdavid — Mon, 22 Nov 2010 04:11:15 -0700

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.

After the above error message appears, the data stored in the database becomes inaccessible. Moreover, you receive the same error message each time you attempt to access the database.

Cause

The root cause for the occurrence of the above error message is the break in the logical page chain at any level (root or leaf) of B-tree. This scenario can occur due to various logical or physical factors.

Resolution

For absolute resolution of the above error message caused due to either logical or physical reasons, you will need to follow the below measures:

View full resolve methods by clicking here:

http://ezinearticles.com/?How-to-Resolve-B-Tree-Chain-Linkage-Mismatch-Error-Message&id=3331494

MDF Recovery to Handle Assertion Failure in SQL Server 2008 and 2005

williumdavid — Fri, 12 Nov 2010 03:06:29 -0700

Are you facing assertion failure errors, while executing queries on MS SQL Server 2008 or 2005 databases? Does the query execution process fail halfway and you encounter errors? You may face the assertion failure problems due to either software bug or Master Database File (MDF) corruption. In both the cases, you can not access the database and come across data loss situations. In order to extract data in these circumstances, restore the database from backup. However, if the backup is unavailable, Master Database File Recovery becomes essential.

For example, the process may fail when you execute a distributed query, which uses linked server in MS SQL Server 2008 or in MS SQL Server 2005. Furthermore, you come across the below error message:

"OLE DB provider "SQLNCLI" for linked server "Linked Server" returned message "No transaction is active.".
Msg 3624, Level 20, State 1, Line 1
A system assertion check has failed. Check the SQL Server error log for details. Typically, an assertion failure is caused by a software bug or data corruption. To check for database corruption, consider running DBCC CHECKDB. If you agreed to send dumps to Microsoft during setup, a mini dump will be sent to Microsoft. An update might be available from Microsoft in the latest Service Pack or in a QFE from Technical Support."

When an assertion measures to false value at run-time, 'assertion failure' may occur. It generally causes the execution process to abort. Assertion failure depicts attention to a location at which the logical database inconsistency is detected.

Assertion Failure renders MDF database inaccessible. In order to access your valuable data in the database, you need to identify the cause of this behavior and perform MDF File Recovery by fixing it.

Cause:

As stated in the above error message, this problem is caused by database corruption or application bug.

Resolution:

If the problem is caused by application bug or malfunction, you need to reinstall the SQL Server. In case of database corruption, repair and restore the damaged MDF file using MDF Recovery software.

The applications use high-end scanning methods to thoroughly scan the database and Recover MDF file in an absolute manner. They preserve the integrity of your data with read-only and non-destructive conduct.

Stellar SQL Database Recovery is the most comprehensive utility the repairs and restores damaged MDF file in all cases of corruption. It works well with Microsoft SQL Server 2008, 2005, and 2000. The software recovers all SQL Server database objects, tables, reports, forms, macros, constraints, triggers, and stored procedures.

Mark willium is a database expert doing research on database recovery software.

Article Source: http://EzineArticles.com/?expert=Mark_Willium

Tips to resolve the error message “Possible bad chain linkage...”

williumdavid — Mon, 01 Nov 2010 05:26:29 -0700

Allocation of MS SQL Server table data can be done either in B-tree or in heap structure. Data retrieval from a heap structure is slow as compared to retrieval from B-tree structure, which is very fast. B-tree structures minimize the navigation of your record, thereby resulting in fast retrieval of your data. B-tree structures use leaf nodes as storage components to save table records. Records saved in MS SQL Server table become inaccessible if these leaf nodes are missing, damaged, or not pointing to the correct parent node. In most of these situations, a database user encounters an error message. To overcome such error messages and to access table records, users can restore data from an updated backup. However, if no backup is available, then the user needs to opt for SQL Repair solutions.

To elaborate the above scenario, consider a realistic situation, wherein, you encounter the below error message while trying to access table records:

“Table error: Object ID O_ID, index ID I_ID. The next pointer of P_ID1 refers to page P_ID2. Neither P_ID2 nor its parent were encountered. Possible bad chain linkage.”

The error message does not allow you to view records saved in the table.

Note: This is a severity level 16 error message.

The above error message appears when a page (P_ID2) referenced by page (P_ID1) goes missing. Such situations arise when your SQL Sever database is logically or physically damaged.

To surmount the above error message, you first need to identify the exact cause of database corruption and then act accordingly. Below mentioned steps help you in identifying and repairing the SQL database corruption:

To identify a hardware problem, you need to check the system, the application, and logs of SQL Server. After the damaged hardware is detected, you will need to swap it with a new component.

In case, the problem persists even after replacing the hardware component, then your database is logically corrupted. To overcome logical corruption, you need to run DBCC CHECKDB command with a repair clause. In case the above command has no effect on your corrupted database, then you need to repair the database using an advanced third-party MDF Recovery utility. A SQL Repair application ensures complete repair after any kinds of logical corruption.

SQL Database Recovery repairs database created in MS SQL Server 2008, 20005, and 2000 and restores it at required location. It is a read only utility and repairs without modifying the original database. The SQL Repair software can be installed on Windows 7, Vista, 2008, XP, 2003, and 2000.

What to do when the Error 8910 arises in an MS SQL Server 2000 database

williumdavid — Thu, 02 Sep 2010 04:01:03 -0700

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.

Resolution:

This error can be addressed using the following resolving techniques:

Fixing the hardware-related issues: Usually it has been observed that such errors are caused due to problems in the hardware parts. For this issue, you should perform the following methods to recover SQL database:

Checking the error logs for errors: You should check the SQL Server error logs and analyze if some error has occurred because of any hardware-related problem. If yes, then try to fix the problem.

Running hardware diagnostics: You should run the hardware diagnostics and check if any error arises while doing so. If yes, then try to correct any such errors.

Swapping the hardware components: You should try to swap the hardware parts to see if the problem appears or not. If the problem does not appear after doing so, then the issue is solved.

Using the database backup: If the hardware parts are perfectly in order, then you should check the status of the database backup. If it is updated, then you can use it by replacing the database with the backup.

Running DBCC CHECKDB: You can also use the DBCC CHECKDB utility with the suggested repair clause to fix the damaged database.

These methods should bring normalcy to the SQL database failing which you should use a third-party MS SQL Server recovery software. Rich user interface, non-destructive scanning algorithms, and the ability to recover MDF file objects are some of the features of these SQL recovery tools.

The best master database file recovery software is Stellar Phoenix SQL Data Recovery, which recovers SQL databases created in MS SQL Server 7.0, 2000, 2005, and 2008. Compatible with Windows 7, Server 2008, Vista, Server 2003, XP, and 2000, this SQL database recovery software fixes and restores objects such as collations, triggers, tables, defaults, stored procedures, NDF files, etc.

Resource: http://hubpages.com/hub/What-to-do-when-the-Error-8910-arises-in-an-MS-SQL-Server-2000-database

How to Repair Corrupted MS SQL Server 2008 Database by Rectifying Error 2537

williumdavid — Thu, 26 Aug 2010 04:37:00 -0700

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.

Resolution:

To resolve this situation, you should perform the following methods in the given order:

Resolve the hardware issues: You should check the error logs and run hardware diagnostics to see if it has occurred due to any hardware malfunctioning. You can also swap the hardware components to isolate the exact reason for the error. Lastly if nothing works out, then you can also consider reformatting the hard disks and reinstalling the operating system.

However, for doing this you should ensure that you backup valuable data.

Restore from backup: If the problem is not hardware related, then you should check the backup. If it is updated and clean, then you should restore the database from its backup.

Run DBCC CHECKDB: If the backup is not updated, then you should run the DBCC CHECKDB tool with the suggested repair clause. This tool will rebuild the index, if exists.

The problem will be fixed once you perform the aforementioned MDF file repair methods. However, if it is not so and the problem is persisting then you should use a third-party MDF repair utility to repair SQL database. Such SQL repair tools possess rich user interface and use fast yet sophisticated scanning algorithms to repair MDF file.

Stellar Phoenix SQL Data Recovery is an SQL repair software that repairs MDF files that are logically corrupted due to any reason. It is specifically designed to repair SQL databases created in MS SQL Server 7.0, 2000, 2005, and 2008. This MS SQL repair utility recovers various SQL database objects such as NDF files, tables, defaults, triggers, stored procedures, etc.

http://www.americanchronicle.com/articles/view/179683

SQL Server Database Corruption on Write-Caching Enable System

williumdavid — Wed, 25 Aug 2010 04:52:35 -0700

Write-caching is the best way to improve data write and read process of your Microsoft SQL Server. It enhances the data reliability and makes the database transactions faster. However, in some situations, it may also lead to database inconsistency and database corruption. The problem generally occurs if Microsoft Exchange Server computer shuts down abnormally before successful completion of particular transaction. In such situations, entire database become inaccessible and you encounter severe data loss. In order to get your precious data back in such cases, you need to opt for SQL Server recovery solutions, if backup is not updated.

As a practical example of this problem, consider the following scenario with your Microsoft SQL Server that has write-caching enabled:

SQL Server writers a log record for 100th page in database.

SQL Server log record is stored in a non-battery-based cache, however database engine is informed that log writer is successful.

The 100th page of the database is also stored in a non-battery-based cache.

The Commit database transaction completes successfully without any error.

The SQL Server database engine recognizes the LSN (Log Sequence Number) and problem write for 100th page.

The database engine of Microsoft SQL Server continues to process as if the transactions are committed successfully on the media. At this point, if a power outage occurs, database may become inconsistent and you'll encounter severe data loss. The problem occurs because the database changes do not physically exist outside non-battery backed cache.

The crash recovery of Microsoft SQL Server database doesn't display any error in such situations because it doesn't know about lost log records. Thus it does not try to redo database transactions. Multiple scenarios of object modifications in such situations can lead to database corruption.

The database corruption is an unaccepted situation that leaves your valuable data at stake of loss. You must identify and fix this behavior using SQL database recovery solutions to get your mission-critical data back. In these critical data loss situations, an absolute backup of your precious data proves to be of great help.

If backup is not in place, MS SQL recovery tools are required to extract data from unusable data. The applications are powerful enough to methodically scan entire database and extract all your valuable data from it. SQL recovery programs are totally safe and easy to use.

Stellar Phoenix SQL Recovery is the most efficient and advanced tool to ensure perfect recovery in all database corruption scenarios. The software recovers both MDF and NDF files of SQL Server database. It works well with Microsoft SQL Server 2008, 2005, 2000, and 7.0.

Memory allocation issues in MS SQL Server 2000 database results in Error 8902

williumdavid — Fri, 20 Aug 2010 21:36:55 -0700

I have found this article on American chronicle. This article may helpful to you to recover and repair damaged mdf file. You can see the full article by the visiting this link 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.

Rectifying Error 5242 and recovering corrupt database in SQL Server 2008

williumdavid — Thu, 10 Jun 2010 05:29:54 -0700

A page is the most primitive unit of storage in an MS SQL Server database. The memory space allotted to a database file is divided into pages having contiguous address location. An Index Allocation Map (IAM) is a page type that stores the details about the extents used by a table per allocation unit. However, sometimes these pages do not function properly because of database corruption. You should take appropriate corrective measures to recover SQL database. However, if you are not able to restore the database then you should use a third-party mdf recovery software to do the needful for you.

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

“An inconsistency was detected during an internal operation in database '%.*ls'(ID:%d) on page %S_PGID. Please contact technical support. Reference number %ld.”

Cause:

The root cause of this error message is that some inconsistency has occurred in the structure of the database page. It could have happened because of various reasons such as virus infections, abrupt system shutdown, hardware issues, etc.

Resolution:

To resolve this erroneous situation, you should perform either of the following methods, preferably in the given order:

Check for hardware issues: You should check the hardware components and the report logs to check whether the issue has occurred because of any hardware malfunctions. You should also swap the hardware components to isolate the error. Last but not the least, you can also consider reformatting the hard disks and reinstalling the operating system.

Restore from backup: If the issue is not hardware related, then you should check the backup of the database. If it is clean and updated, then restore the database from its backup.

Run DBCC CHECKDB: If the backup is not clean or updated, then you should run the DBCC CHECKDB utility without the repair clause to know the corruption level. Then, you should the run it with the suggested repair clause.

The aforementioned methods should be able to bring about the solution to the problem. However, if you are not able to repair the corrupted database then you should use a third-party SQL database recovery software to do the needful. Such read-only tools are able to recover SQL database using fast yet sophisticated scanning algorithms.

Stellar Phoenix SQL Database Recovery is an MS SQL recovery software that repairs the corrupted databases created in SQL Server 2008, 2005, and 2000. It is able to recover various database objects such as tables, queries, stored procedures, triggers, defaults, etc. In addition, this MDF database repair tool is able to recover the user-defined functions and data types. It is compatible with Windows 7, Vista, Server 2003, XP, and Server 2000.

Rectifying Error 8925 and repairing corrupt database in SQL Server 2000

williumdavid — Wed, 02 Jun 2010 05:32:52 -0700

Using the indexes in SQL databases is a good practice as it makes searching the records faster and easier. The indexes consist of various pages that are arranged in the form of B-tree structures. When a query is executed, the database engine goes all way from the root node to the exact branch where the data is located. Any discrepancy in this routine may result in corruption of the database table. Such discrepancies can arise due to various reasons such as virus infections, hardware incompatibility, corrupt operating system, etc. You should use appropriate corrective measures to rectify the problem. However, if you are not able to resolve the issue then you should use a third-party mdf database repair software to repair SQL database table.

Consider a scenario wherein you face the following error message while working on the SQL Server 2000 database.

"Table error: Cross object linkage: Page P_ID1, slot S_ID1, in object ID O_ID1, index ID I_ID1 refers to page P_ID2, slot S_ID2, in object ID O_ID2, index ID I_ID2."

Cause:

The root cause of this error message is that the P_ID1 page is pointing to a different object in the P_ID2 page.

Resolution:

To resolve this error, you should perform the following methods, ideally in the given order:

Check for hardware issues: You should run hardware diagnostics and check the error logs to ascertain whether the error has occurred because of any hardware problem.

Also, you can swap the hardware components to isolate the error. In addition, you can consider reformatting the hard disk and reinstalling the operating system.

Restore from backup: You should check if the backup is updated and clean. If yes, then you should restore the database from its backup.

Run DBCC CHECKDB: You should run DBCC CHECKDB without the repair clause to know the level of corruption. Then, run the command again with the suggested repair clause. This command is used to check the logical and physical integrity of the corrupted database.

The aforementioned methods would be able to resolve the issue. However, there are times when you are not able to fully repair the database using these methods. In such cases, you should use a third-party SQL repair software to repair SQL database. Such read-only tools use fast yet sophisticated scanning algorithms without overwriting the original database.

Stellar Phoenix SQL Database Recovery is an MS SQL repair software that repairs corrupted databases created in SQL Server 2000, 2005, and 2008. It is able to repair various database objects such as stored procedures, queries, defaults, triggers, views, rules, etc. In addition, this mdf recovery tool is capable of repairing even those databases that are not repaired by the DBCC CHECKDB command. It is compatible with Windows 7, Vista, Server 2003, XP, and Server 2000.

Rectifying Error 8921 in SQL Server 2000

williumdavid — Fri, 28 May 2010 22:32:13 -0700

MS SQL Server provides the DBCC statements that are used to check and fix the databases for physical and logical consistency. There are various types of DBCC statements that you can use for the any particular purpose. However, at times these commands are not able to perform. The reason behind is that these database may have corrupted because of various reasons such as virus infections, hardware issues, human errors, etc. In such cases, you should use a third-party MDF repair software to repair SQL database.

Consider a scenario wherein you are working on an SQL Server 2000 database. In this, you use the DBCC CHECKTABLE command on a particular table to make it more scalable and achieve parallelism. However, the command failed to execute. An error message is displayed, that is:

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

Cause:

The root cause of this error message is that the internal query that was used by DBCC failed to deliver the desired result. It may be possible that the tempdb database has gone out of space or there is an inconsistent system table.

Resolution:

To resolve this error message, you should perform the following methods, preferably in the given order:

Check for hardware issues: You should run hardware diagnostics and check whether the issue is raised because of any malfunctioning hardware component. You can also check the error logs, or swap the hardware components to zero in on the source of the issue. Also, you can also consider reformatting the disks and reinstalling the operating system.

Restore from backup: You should check if the backup is updated and clean. If yes, then you should restore the database from its backup.

Run DBCC CHECKDB: You should run DBCC CHECKDB first without a repair clause, and then with the repair clause after determining the extent of corruption.

The aforementioned methods will be able to resolve the error message and you can access the database properly. However, if it is not so then you should use a third-party SQL data recovery software to repair the corrupted database. Such read-only tools are able to repair SQL databases by using fast yet sophisticated scanning algorithms thereby ensuring safe recovery of the corrupted database.

Stellar Phoenix SQL Recovery is an MDF repair software that repairs SQL database from all instances of corruption. It supports SQL repair of the corrupt databases created in SQL Server 2000, 2005, and 2008. This MS SQL repair tool is capable of repairing various database objects such as stored procedures, queries, triggers, database constraints, user defined data types, etc. It is compatible with Windows 7, Vista, Server 2003, XP, and Server 2000.

Fixing Error 2570 Post MDF File Corruption

williumdavid — Thu, 20 May 2010 05:13:07 -0700

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.

Cause:

The above error message occurs after MDF file corruption due to logical or physical reason.

Resolution:

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:

1.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.

2.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.

Stellar Phoenix SQL Recovery repairs and restores MDF files, irrespective of the cause of logical damage. Supported by MS SQL Server 2008, 2005, and 2000, the MDF Repair tool repairs SQL Server database objects, like table, views, and more. The tool is compatible with Windows 7, Vista, 2008, XP, 2003, and 2000.

Tips to Resolve Error 2537 in SQL Server 2000

williumdavid — Mon, 17 May 2010 02:50:09 -0700

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:

“Table error: Object ID O_ID, index ID I_ID, page P_ID, row ROW_ID. Record check (CHECK_TEXT) failed. Values are VALUE1 and VALUE2.”

Once the above error message flashes on the screen, the database records become inaccessible.

Reason:

Two main reasons liable for the occurrence of 2537 error message are discussed underneath:

1.A condition specified in the CHECK_TEXT statement could not be fulfilled.
2.The database table is logically or physically damaged.

Tips to Resolve:

To get past the above error message, an easy way is to restore the database from an updated backup. However, if in case backup is not available, then repair the database using following steps:

1.In case the SQL Server 2000 database table is physically damaged, then replace the physically damaged component with a new component. To determine the component that is physically damaged, check the system logs.

2.In case the SQL Server 2000 database table is logically corrupted, then run DBCC CHECKDB command with a suitable repair clause. While doing so, the logical corruption can be resolved, but it might also result in loss of data. To ignore such data loss situations, it is advisable to repair the database using a commercial MDF Repair application. Such MDF File Repair tools are totally non-destructive and keep the original file untouched while repairing.

Stellar Phoenix SQL Recovery successfully repairs all MDF files created in MS SQL Server 2008, 2005, and 2000. The MDF Recovery application supports repair of almost all SQL Server database objects, including table, views, etc. It supports Windows 7, Vista, 2008, XP, 2003, and 2000.

Resolving Error 2522 Post DBCC CHECKDB Failure

williumdavid — Fri, 14 May 2010 04:35:31 -0700

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:

“Unable to process index I_NAME of table O_NAME because filegroup F_NAME is invalid.”

This a severity level 16 error message. This message makes the database unmountable and all the records saved in it inaccessible.

Cause:

The above error message appears when the filegroup saved in the metadata structure of an index gets corrupted or does not exist. In such situations, the index can not be checked and the database can not be mounted. The error message can appear either due to logical or physical damage.

Resolution:

To get past the above issue, follow the underneath guidelines:

In case of damage done due to a hardware damage, you will need to change the damaged system component. To identify the damaged system component, check the system and application logs.
In case logical crash becoming the reason for MDF file damage, the user needs to use commercial MDF File Repair application. MDF Repair tools use effective repair techniques to repair logically damaged database and bring the database back in mountable state. The application is easy to understand and needs no prior technical knowledge.

Stellar Phoenix SQL Recovery repairs MDF files after logical damages caused due to application malfunction, virus attack, and some other similar reason. The non-destructive MDF Recovery tool keeps the original MDF file intact and does not make any change in the original file. Supported by MS SQL Server 2008, 2005, and 2000, the tool can be installed on Windows 7, Vista, 2008, XP, 2003, and 2000.

Some Tips to Solve Error 8940 in SQL Server

williumdavid — Wed, 12 May 2010 02:17:42 -0700

Tables of SQL Server database can be checked for consistency by running DBCC CHECKTABLE. An administrator requires to take immediate MDF Recovery (SQL uses .mdf file extension to store its database) actions on encountering any issues with database table. Failing to do so might exaggerate the problems further.

After a general overview, here is a specific problem that will help you comprehend the problem. Let's say, you as an SQL Server administrator experiences some database access related issues that doubt database corruption. On running consistency check on the database table(s) using DBCC CHECKTABLE command, this returns the below or similar error message:

Table error: Object ID O_ID, index ID I_ID, page P_ID. Test (TEST) failed. Address 0xADDRESS is not aligned.

Depending on the exact cause, this specific error occurs in two states: State 9 and State 102.

Explanation

This type of corruption is likely to occur because of hardware reasons. As the error suggests, a structure defined at ADDRESS doesn't exists in expected 4-byte aligned condition. If this error occurs with state 9, it occurs when free space offset is incorrectly aligned, while in case of state 102, this occurs when record is incorrectly aligned.

User Action

Perform hardware diagnostics and isolate the related issues, if any. To do so, you can check SQL Server™ error log, application logs, and Windows system logs. If corruption seems to occur repeatedly, try changing different hardware components.
If hardware problems is not the case, restore the database from your previous clean data backup.
In case no suitable backup is present, run DBCC CHECKDB and determine the repair clause. Now execute the same command with the suggested repair clause. Doing so can even delete your data or cause more damages, so it is recommended to backup your database prior running this command.

If database cannot be repaired by DBCC repair command, use a third-party .mdf Recovery software to scan and repair the database. An MDF Repair utility can be easily operated and can repair the corrupted SQL Server database, irrespective of the nature of corruption.

SQL Recovery Software is a comprehensive utility designed to scan and repair a corrupted MDF database file and restore its contents to a safe location. As a competent .mdf Recovery tool, it can restore all database components like, tables, stored procedures, defaults, triggers, views, and others. It supports MS SQL Server 2008, 2005, and 2000.