| The fast results of SQL queries is a result of b-tree | | | | time you attempt to access the database. |
| indexes used by a SQL Server. A single B-tree | | | | Cause |
| consists of number of index nodes, root nodes, branch | | | | The root cause for the occurrence of the above error |
| nodes, and leaf nodes that enable you to | | | | message is the break in the logical page chain at any |
| systematically store your data. | | | | level (root or leaf) of B-tree. This scenario can occur |
| Corruption in any of the nodes (specially index nodes) | | | | due to various logical or physical factors. |
| can result into inaccessibility of records stored in the | | | | Resolution |
| database. In most of these situations, you encounter | | | | For absolute resolution of the above error message |
| an error message stating the exact cause. To surpass | | | | caused due to either logical or physical reasons, you |
| the above database inaccessibility circumstances, you | | | | will need to follow the below measures: |
| will need to use restore the data stored from an | | | | Execute DBCC CHECKDB command, with repair |
| updated backup. However, in absence of an updated | | | | clause to resolve the error caused due to logical |
| backup or backup falls short to restore the required | | | | corruption. |
| data, then you will need to search for advanced | | | | Change the physically damaged component in case of |
| third-party sql repair application. | | | | physical corruption. To identify the damaged |
| Consider a practical scenario, where you receive the | | | | component, you will need to examine the application |
| below error message when you attempt view the | | | | the application and Microsoft Windows system logs. |
| records saved in your SQL Server database: | | | | If the above the measures fail to perform, and there is |
| Table error: Object ID O_ID, index ID I_ID. B-tree chain | | | | database backup available, then you will need to |
| linkage mismatch. P_ID1->next = P_ID2, but | | | | search for powerful SQL Repair software. These |
| P_ID2->Prev =P_ID3. | | | | SQL Database Repair tools serve as self explanatory |
| After the above error message appears, the data | | | | and repair centric tools and are completely |
| stored in the database becomes inaccessible. | | | | non-destructive in nature. |
| Moreover, you receive the same error message each | | | | |