Monday, November 30, 2009

How to Resolve “Could not read and latch...” Error Message

Data storage space in SQL database is primarily divided into numerous pages. Each page contains a 96-byte header that contains information related to page number, page type, ID, and free space. Corruption in metadata structure primarily results in failing to read the data stored on the page. This further results in making the data stored in the database inaccessible. In such situations, the data stored in the database can be accessed by restoring it from an updated backup. However, there have been instances where the backup has not been created or the backup file is corrupted due to various logical and physical factors. For accessing your database records under such circumstances, you will need to search for an advanced third-party Recover SQL application.

Consider a practical scenario, where you encounter the below error message when you attempt to mount your SQL database:

“Could not read and latch page P_ID with latch type TYPE. OPERATION failed.”

The above error message appears each time you attempt to access the database records. Furthermore, the above error message makes the database records inaccessible.

Cause:

The root cause for the occurrence of the above error message is the failure of page read due to any of the below reasons:

The page is in repairing state.
An indeterminate function is being performed on the page.
The page might be read as a part of per checks of important system tables.

Note: The above scenarios can occur due to both logical and physical reasons.

Resolution:
To resolve the above error message and to execute your database records, you will need to
swap the damaged system component with a new one (for physical damages). For logical crash scenarios, you will need to run DBCC CHECKDB command (with correct repair clause).

Changing the damaged hardware component provides comprehensive solution to get rid of all hardware problems. But, in case of removing logical corruption scenarios, DBCC CHECKDB is not always a complete solution. For permanent resolution of all corruption scenarios, you will need to use a powerful SQL Database Repair application. Such MS SQL Repair software orderly perform database repair and recover all lost database components.

Wednesday, November 25, 2009

How to Resolve “Extent E_ID in database ID...” Error Message

The structure of an Index Allocation Map (IAM) page in MS SQL Server consists of one bit per dedicated extent for all the “Extents” in the file interval. The bit is allocated to the index of which the IAM page is a part. Corruption in the bit can result into inaccessibility of records stored in your database. Few major causes of corruption of the application damage, metadata structure corruption, malicious software like virus, and human errors. To access your data in such situations, restoration from an updated and valid database backup always helps. However, if the restoration could not be performed due to backup corruption, then the only way to access your data is by using advanced third-party SQL Server Recovery application.

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

“Extent E_ID in database ID DB_ID is allocated to more than one allocation object.”

The above error message halts the database mounting process making all the records saved in it inaccessible.

Cause:

The fundamental reason responsible for the occurrence of the above error message is bit corruption that results in the allocation of same extent to two different IAM pages.

Note: The above error message can also occur due to physical damage of your system's component.

Resolution:

To resolve the above error message and to access the database records, take the below measures:

In logical crash circumstances, run DBCC CHECKDB command (with appropriate repair clause).
The physical damages can only be resolved by making the swapping the damaged component with the new component.

While the above resolution for physical damage is always successful, the DBCC CHECKDB does not provides complete surety of repairing database after all logical crashes. To permanently resolve all logical corruption scenarios, you will need to use advanced SQL Repair tools. Such SQL Database Repair applications are built by highly talented database recovery experts and use high end repairing methods to repair your database. These tools come with interactive user documentation, that makes them easy to understand without any prior technical understanding.

Monday, November 23, 2009

How to Resolve “Table error: … out of range ...”

Nothing can be more frustrating than the inaccessibility of records stored in your database. There can be numerous reasons responsible for corruption, such as, metadata structure damage, MS SQL Server unexpected shutdown, virus attack, and more. A perfect resolution to get rid of all the corruption scenarios is by restoring the data from an updated database backup. But, there might be situations where you have either not created any backup or your backup has been damaged. These circumstances force you to use advance third party Recover SQL application that can easily repair your corrupted database.

As a practical scenario, you receive the underneath error message when you attempt to access the records stored in your SQL database:

“Table error: PAGETYPE page P_ID (object ID O_ID, index ID I_ID) is out of the range of this database.”

The above error message makes the database unmountable eventually resulting in the inaccessibility of records. Furthermore, the same error message pops up every time you attempt to access the database.

Cause:

The root cause for the occurrence of the above error message is that the IAM (Index Allocation Map) page is beyond the use of the file in which it is stored. This happens when the page maps an invalid interval or the first IAM page for an index is allocated as PageId_NULL.

Note: The above error message can occur due to both logical or physical damage.

Resolution:

Underneath are the resolutions that help you to resolve the error caused due to either logical or physical reasons:

Run DBCC CHECKDB command to in case of logical corruption.
Thoroughly examine the application the application and Microsoft Windows system logs to identify physical damage. In case, the logs specify the physical damage, then connect the hardware.

While the above resolutions prove successful in most situations, the possibilities of DBCC CHECKDB command falling short always exists. In such cases, you will need to opt for advanced SQL Repair software. Such SQL Database Repair are easy to understand by both technical and non-technical users as they are built with highly interactive user-interface.

Friday, November 20, 2009

Resolving “IAM page P_ID1 is pointed to by the previous pointer...” Error Message

An Index Allocation Map (IAM) page in MS SQL Server database act as a storage component to save information related to table extents and indexes. A single IAM page contains of two records – IAM page header and bitmap – and has the capacity to track 4GB of space to store. A linked list of all the IAM pages – IAM chain – tracks the space assigned to every single entity. Corruption in IAM chain primarily results in unmountability of SQL database. An unmountable database means inaccessibility of all the records. To access your records after IAM chain corruption, restore the data from an updated database backup. But, in absence of an updated backup or backup falling short to restore the required data, you will need to use advanced MS SQL Recovery application to repair your database.

Here is an instance to prove the above point. Consider a scenario, where you receive the below error message when you attempt to mount your database:

“IAM page P_ID1 is pointed to by the previous pointer of IAM page P_ID2 object ID O_ID index ID I_ID but was not detected in the scan.”

This error message stops the mounting process of your database resulting in making the records inaccessible.

Cause:

The above unmountable error message primarily occurs when the metadata entry in the IAM chain goes missing. This usually occurs due to metadata structure corruption.

Resolution:

The resolution for the above error message can be found out by following the below measures:


For logical corruption situations, you will need to run DBCC CHECKDB command (with repair clause) to repair your database.
For physical damage cases, you will need to examine the SQL Server and Microsoft Windows system logs. These logs help you to find the exact cause of damage. To permanently rectify the problem, change the damaged component with a new one.

While all the logical corruption scenarios can be solved using the above repair statement, there are still some possibilities of the database being not repaired. In such situations, if you want to repair your database, you will need to use a powerful third-party SQL Repair tool. Such SQL Database Repair applications are developed by highly qualified data recovery engineers and employ high end scanning methods to repair logically corrupted database.

Wednesday, November 18, 2009

Database Repair post “Table error: Page P_ID...” Error Message

Two main building blocks of every MS SQL database are pages and indexes. These pages store actual data and are always marked by a header that stores information such as, page number, page type, and free space. The page type in header section saves the data (Index, allocation map, etc.) that define the page. Corruption in the header might occur due to numerous factors, resulting into inaccessibility of records stored in the database. In most cases of SQL database corruption, you encounter an error message. To surmount the error message and access the SQL database records, you will need to restore the data from an updated backup. However, if the database backup file is corrupted, damaged, or inaccessible, then you will need to use advanced SQL Repair software.

Below is the error message that appears after the header gets corrupted or damaged:

“Table error: Page P_ID with object ID O_ID, index ID I_ID in its header is allocated by another object.”

The above error message appears every time you attempt to access the database records. In addition, the database records become inaccessible after the above error message appears.

Cause:

The above error message primarily occurs when a page contains a Index ID but is not allocated by any of the index's IAM pages. This happens in case of Index corruption, caused by either logical or physical crash.

Resolution:

Underneath are the resolutions for database repair caused due to logical or physical issues:

For logical crash circumstances, run DBCC CHECKDB command (with recommended repair clause) to repair your database.
For physical crash situations, examine the application and Microsoft Windows system logs. These logs enable you to determine the hardware responsible for damage. Swap the damaged hardware with a new one.

While physical damages can be convincingly solved by changing the hardware component, DBCC CHECKDB does not provide comprehensive repair in all cases. To repair your database is such situations, you need to have an advanced SQL Repair software. Such SQL Server Recovery software ensure complete repair after all the logical corruption scenarios by using intensive scanning and repairing techniques.

Monday, November 16, 2009

Warning message after MS SQL database corruption

A warning error message while accessing the records stored in your MS SQL database occurs when the database is corrupted or there is a possibility of database being corrupted. While it is advisable not to access your data after any warning message, most of the database users tend to ignore such error messages. The best way to resolve all the warning messages is by using the restoring the database records from most recently valid database backup. But if in case, the database backup is not available or backup falls short to restore the database, then you should opt for advance third-party SQL Recovery tools that can repair your corrupted database.

Consider a practical scenario, where you encounter the below error message each time you attempt to access your SQL database components:

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.

Note: Frequent occurrence of the above error message might corrupt your database to a large extent, making it totally unrepairable.

Cause:

The above error message occurs when the column specified contains an illegal value. This occurs when your database gets corrupted due to logical or physical factors.

Resolution:

For complete resolution of the above warning error message and repair of corrupted database, you will need to follow the below steps:

In case of corruption due hardware failure, examine the Microsoft Windows system and application logs. These logs help you determine the damaged hardware. Swap the damaged hardware with a completely new hardware component.
For logical corruption scenarios, you will need to run DBCC CHECKDB command (with recommended repair clause) to repair your database.

In most situations, the warning message does not appear after taking the above steps. However, if the warning message persists, then you will need to search for a professional SQL Repair software. Such SQL Database Recovery software completely repair your database by using intensive scanning methods. The software comes with an installation guide that guides you through an easy to understand database repair procedure.

Wednesday, November 11, 2009

Data Retrieval post Read/Write Error Message

Physical disk problems can be a result of various factors, such as, bad sectors on your hard drive, disk drive failure, or controller damage. A read/write error message pops up whenever your storage media gets physically damaged. This error message is primarily raised when you want to open a database file and MS SQL Server is unable to read the specified disk location. Furthermore, read/write error message disk problems leave your database in unmountable state making the records saved in it inaccessible. To overcome the hazards created by the error message, the best way is to restore the data from an updated backup. However, if the backup fails to restore the data due to its corruption or damage, then you will need to use advanced SQL Server Recovery services to recover your data.

As a practical instance, you experience the below read/write error message while attempting to access your database:

“%s: operating system error %d (%s) encountered”

Records stored in your database file become inaccessible after the above error message appears. Furthermore, the above error message repeatedly occurs each time you attempt to access the database records.

Cause:

The root cause for the occurrence of the above is the physical disk problem caused due to bad sectors, human errors, hard disk controller damage, and many more similar reasons.

Resolution:

To comprehensively troubleshoot the above error message and access the database file, you will need to identify the damaged device by selecting the row from “sysaltfiles”, which contains same disk name mentioned in the error message:

USE master
GO
SELECT name, filename
FROM master..sysaltfiles
GO
The output of the above query displays the name of physical name of your hard disk.

Self-examine your hard disk and correct the problems. While the problem may solve at your end, the probability of database getting further corrupted always high. To ensure any further damage, it is advisable to opt for advanced SQL Repair services. These SQL Recovery services are provided by data recovery organizations and are performed by highly talented data recovery experts.

Tuesday, November 10, 2009

Retrieve data after “Table error: Extent P_ID...”

Records stored in SOL Server 2000 database table can become inaccessible when it is corrupted or damaged. There can be various reasons responsible for table corruption, such as, concurrent execution, metadata corruption, virus attack, and human error. In most cases of table corruption, an error message pops up displaying you the exact reason for corruption. This error message is a hindrance in displaying the records stored in the table. To access the records stored in table, you a valid backup enables you to restore the data. However, if you have forgot to create a database backup or backup falls short to restore the desired records, then you will need to use advanced SQL Recovery software.

Consider a practical case, where you receive the below error message when you attempt to access the records stored in your table:

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

The above error message makes the table records inaccessible. Furthermore, the error message repeatedly occurs every time you try to access the table.

Cause:

The above error message primarily occurs when your pageinfile (P_ID is a PageID of filenum:pageinfile form) is greater than the physical size of the filenum. This usually happens due to metadata structure corruption.

Resolution:

For absolute recovery of data after the above error message, you will need to follow the below steps:

In case of damage caused due to hardware damage, swap the damaged hardware objects with new ones.
In case of damage caused due to any logical crash, run DBCC CHECKDB command (with appropriate repair clause) to systematically repair your database.
Restore the table from from an updated backup.

If the error message appears even after following the above measures, then you will need to search for an advanced third party SQL Repair tool. Such SQL Database Recovery software comprehensively repair corrupted database and recover lost database components by employing effective scanning procedures. The user-friendly applications are easy to understand and do not require any prior technical skills.

Friday, November 6, 2009

Table Error Message post Index header corruption

SQL Server database numerous sequentially numbered pages to store the data. Each page in the database is marked by a header which saves metadata information (page type, page number, and free space ) about the page. The page type further defines the data stored in the page – Index, data stored, allocation maps, and more. Corruption or damage in header primarily results in making the SQL Server database inaccessible. Furthermore, you also encounter an error message. For absolute access of records stored in SQL Server database, the most effective way is to restore the data from an updated database backup. However, if backup is corrupted, damaged, or inaccessible, then you will need to use advanced SQL Server Recovery software to repair your database.

As a practical instance, you encounter the below error message when you try to mount your SQL Server 2000 database:

“Table error: Page P_ID allocated to object ID O_ID, index ID I_ID was not seen. Page may be invalid or have incorrect object ID information in its header.”

The above error message makes the data stored in your database inaccessible. Additionally, the error message pops up every time you attempt to access the database records.

Cause:

The fundamental reason for the occurrence of the above error message is the page containing the data was not seen with that particular object/index ID. However, the page contains different Index ID in its header. This happens due metadata structure (header) corruption.

Resolution:

For comprehensive troubleshooting of the above error message and access of records, you will need to follow the below steps:

In case of corruption due hardware failure, swap the old hardware components with new ones to completely resolve the problem.
In case of corruption due to any logical crash, execute DBCC CHECKDB command (with recommended repair clause) to repair your database.

The possibility of both the above measures failing to resolve your problem always remains. In such situations, start searching for a powerful SQL Repair tool. Such SQL Database Recovery tools provide comprehensive recovery of lost database components by using high end scanning procedures.

Thursday, November 5, 2009

Resolving “Unable to process table...” Error Message

An error message while trying to mount the database might leave you in a state of shock. While the reasons for the occurrence of the errors could be many, the outcome for most of the error messages remains the same – inaccessibility of database records. One common reason for the occurrence of the error message could be corruption of sysfilegroups table. A sysfilegroups table consists of one row for each filegroup in your SQL Server database. The table is saved in each SQL Server database and there contains at least one entry for primary filegroup. For complete access of database records after sysfilegroups table corruption, an ideal way is to restore the data from an updated backup. However, if no backup is available or backup falls short to restore the required records, start looking out for an advanced SQL Recovery tool that can recover your lost data.

Consider a practical example, where you encounter the below error message when you encounter the below error message when you attempt to mount your database:

“Unable to process table O_NAME because filegroup F_NAME is offline.”

Database records become inaccessible after the above error message pops up. Additionally the database becomes inaccessible after the above error message appears.

Cause:

Three main causes for the occurrence of the above error message are:

Corruption or damage in sysfilegroups table.
The file group might have been marked offline erroneously.
Some database user could have intentionally marked the file group offline.

Resolution:

To resolve the above error message and access the records, you will need to follow the below measures:

In case of file group offline, make it online.
In case of sysfilegroups table corruption, execute the DBCC CHECKFILEGROUP statement with appropriate clause.
If the error message still appears, restore the data from a valid backup.

However, in case of absence of an updated database backup, you will need to opt for advanced third party SQL Recovery software. Such Recover SQL tools ensure complete database repair and recovery of lost database components. With an easy-to-understand user-documentation, these tools can be used both by technical and non-technical users.

Tuesday, November 3, 2009

Resolving Table Error in SQL Server database

A table error while accessing a table in SQL Server 2000 database can occur due to various reasons like corruption in page header, incorrect alignment of system table, invalid page type, index_page page has an index zero, incorrect header modification, hardware failure, and more. While the reasons for table corruption might be many, but the result for all them remains the same – inaccessibility of table records. To access the table records without applying any extra efforts, you can directly restore the table from an updated database backup. However, if the database backup is not available or backup falls short to restore the data, then you will need to use advanced MDF Recovery software to resolve the corruption and access the records.

As a practical scenario, you receive the below error message when you try to view the records stored in the table:

“Table error: Object ID O_ID, index ID I_ID, page P_ID. Test (TEST) failed. Values are VAL1 and VAL2.”

The error message re-appears each time you attempt to access the records saved in that table. In addition, the error message makes the records stored in the database becomes inaccessible.

Cause:

The various causes of the above error error message are discussed below:

Damage in page header
Incorrect alignment of system table
Invalid page type
Hardware Failure

Resolution:

To resolve the above error message caused due to hardware failure, you will need to run the hardware diagnostics. Fix the hardware problems by by swapping the hardware components.
To resolve the error message caused due to software failure, in case you have not maintained any database backup, you will need to execute DBCC CHECKDB command without a repair clause. This helps you to identify the exact cause for database corruption. After identifying the cause, execute the correct repair clause to repair the database.
Note: Running the DBCC CHECKDB command with repair clause might result into loss of data.

In most cases, the error message gets resolved after running the DBCC CHECKDB command. But if in case, the command fails to resolve the error message, then you will need to opt for powerful MDF Repair software. These SQL Server Recovery applications use high end scanning methods to repair the corrupted SQL Server database and restore them on the user-specified location.