Repair SQL database to retrieve requited data

Microsoft SQL database stores major chunk of records in the form of specified number of rows and columns. Using SQL database, one can store as well as fetch required records from any table by passing a query. The SQL database is a form of comprehensive RDBMS that includes all the essential features to implement an efficient data administration. Despite of having many beneficial features, sometimes, it does not exhibit desirable results and might fail due to various reasons. The most possible reason behind the failure of the database is corruption of table. Few common factors for table corruption are improper system shutdown, metadata structure corruption, application failure and virus attack. All the reasons make the database inaccessible and finally lead to data loss. Whenever a database corruption issue occurs, an informatory error message is encountered on the screen stating the user about the intensity of corruption. Usually, an error message carries enough details for a DBA to deal with the corruption and recover the data. But when reverse happens, data recovery from corrupted SQL database becomes difficult.
How does SQL database corrupt?
The SQL database stores table data, records and query interface in MDF files, hence when these MDF files get corrupted the entire database corrupts. The DBCC CHECKDB command-line utility verifies the integrity and consistency of your SQL database and enables you to deal with most of the database corruption cases. It may report some database inconsistency errors if all the following conditions hold:
• Some data is inserted in a column of sql_variant data type.
• Another column having sql_variant data type has generated the data, which is sent on the wire by MS SQL Server.
• The data is either sent to an intermediate file or to another SQL Server.
• Some character values are present in the sql_variant column.
The following corruption error is reported by the DBCC CHECKDB tool:
• "Msg 2537, Level 16, State 43, Server MYSERVER, Line 1
• Table error: Object ID 1977058079, index ID 0, page (1:75), row 0. Record
• Check (Valid SqlVariant) failed. Values are 4 and 0.
• DBCC results for 'MyTable'.
• There are 0 row in 1 page for object 'MyTable'.
• CHECKDB found 0 allocation error and 1 consistency error in table
• 'MyTable' (object ID 1977058079).
• CHECKDB found 0 allocation error and 1 consistency error in database
• 'MyReproDest'.
• repair_allow_data_loss is the minimum repair level for the errors found by
• DBCC CHECKDB (MyReproDest )."
The error occurs due to SQL Server database corruption. It makes all the important records and valuable database entries inaccessible. To get back the access to your database, you need to repair the MDF files by applying some remedial measure. For severe database corruption, you must have to follow up an efficient SQL recovery tool that restores all the components of a corrupt database to a new MDF file.
Kernel SQL Recovery is the competent Data Recovery Software utility that efficiently repairs all the SQL database MDF files and rebuilds new database using the recovered data. This software is available with its free demo version.

Author Bio:
The author is a great technical analyst and has written several articles on Data Recovery Software . The articles he has written guide the novice as well as expert professionals to know how to perform SQL recovery .

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