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.

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