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.
