SQL Index Corruption Leads to Data Loss in SQL Server Database!
Friends, corruption in database is really one of the panic and annoying situation for anyone of us. Now, in such disastrous situation prevention and recovery should be the first preference in the DBA list. But, what if you don’t have a perfect idea regarding how to repair SQL index corruption? Well, then its really a cumbersome situation for you. But, you don’t have to be worried! Here, you will get complete guide regarding the recovery of above issue.
An Introduction to SQL Index File
Index is the integral part of SQL database that speeds up the retrieval of rows from table or view. It is well known that SQL server database stores entire data in the form of tables. Operations on these tables can be enhanced using index. You can easily create it using multiple columns of table which can be further used to manage the database. Index is the data structure used to enhance the performance of database by providing fast and easy access to stored data. But, sometimes due to unfavorable reasons it gets corrupted and makes your database inaccessible and also leads to serious data loss situation. Now, to overcome the problem and to restore lost data files, backup plays an important role. But, If you don’t have valid backup then, it really becomes quite difficult to get back the lost data.
Most of the time it has been observed that you are unable to perform some common operations like update, delete, modify etc on your database table due to occurrence of below error message:
- “Error: 644, Severity: 21, State: 5
- Could not find the index entry for RID ‘1613b1000000100’ in index page (1:189), index ID 7, database ‘TestDB’..
- Error: 8646, Severity: 21, State: 1
- The index entry for row ID was not found in index ID 7, of table 2009058193, in database ‘test644’.
- Possible index corruption detected. Run DBCC CHECKDB.
Why Above Error Message Gets Appeared?
SQL index corruption is the major cause for the occurrence of such types of errors As a result you are unable to access it as it becomes inaccessible. Most of the data loss problems arise due to index corruption. Generally, the index gets corrupted due to some adverse reasons like virus attack, improper shut down of system, power failure, improper maintenance of indexes, bad sectors in hard disk, hard drive failure etc.
How to Repair SQL Index Corruption
To repair corrupt SQL index and gain access on your damaged database, you can make use of DBCC CHECKDB utility. But, in some scenario it fails to repair SQL index corruption. In such situation, you can use MS SQL database Repair Software to repair the corrupt database. It safely repairs and restores SQL indexes, views, tables, forms, reports, triggers, procedures etc. Beside better recovery option, the tool will also offer very easy to use interface which really makes the working easier and simpler. Last but not the least, the tool is highly responsive and well compatible with all the latest version of SQL database server.