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.

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