Data corruption refers to errors in computer data that occur during writing, reading, storage, transmission, or processing, which introduce unintended changes to the original data

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FoxPro DBF Index Corruption

We are running a pretty popular application in Russia and other CIS countries through a pretty old accounting system called BEST. It's all built on FoxPro (not Visual Foxpro) DBF/CDX tables. It's open ...
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1answer
222 views

When do you remove entries from a write-ahead log (WAL)?

If I understand correctly, when a user updates a database record and commits the transaction the commit() call will block until the following steps are done: Database documents the change in the ...
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MySQL corruption even after full dump and re-import

We have a production issue where MySQL has started spitting InnoDB corrupt page errors and falling over. The error message seem to relate to indexes so I assume the data itself is ok and when I ...
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Attaching a MDF with a missing LDF [duplicate]

Possible Duplicate: How do I attach a database in SQL Server? I was given an MDF for a database, no backups and not LDF that I was asked to attach the database to a SQL server. I get the ...
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1answer
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How to avoid table crash?

Couple of days back I had a table with 7GB of data and it was showing 63MB of overhead in phpMyAdmin and I mistakenly started its optimization and after working of more than 40 mins it corrupted the ...
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What types of corruption can DBCC CheckDB miss?

This question was prompted by this earlier post and my having a database filed away for future investigation that was restored following: BACKUP 'BrokenDatabase' detected an error on page (1:123456) ...
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How can I corrupt a table in SQL Server?

I have to write a program that detects corrupted tables and tries to repair them. For this I need to corrupt tables regularly. Is there anyway to corrupt tables manually?
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Logical page error while attempting to insert data

I am getting the following error while trying to insert a row in a table: Attempt to fetch logical page (1:12032) in database 19 failed. It belongs to allocation unit 72057594069450752 not to ...
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SQL Server 2008 R2 (Suspect) mode - how to repair?

I have SQL Server 2008 R2 database in Suspect mode. I tried to fix it running this query: EXEC sp_resetstatus ‘yourDBname’; ALTER DATABASE yourDBname SET EMERGENCY DBCC checkdb(’yourDBname’) ALTER ...
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How to find corrupt page in SQL Server 2008

I know I can execute a DBCC CHECKDB and get a status of my database. Questions How can I find if there is some corrupt data page into my database? If an error is throwndue to page corruption, where ...
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An inconsistency was detected

Am running asp.net application.Am searching records.if i click the view button i got this error, an inconsistency was detected during an internal operation in database(database name) on ...
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1answer
595 views

SQL Server 2005 query erroring with message 7105, slot for LOB data type node does not exist

SQL Server 2005 sp3 Standard on 64-bit Windows Server 2008 inconsistently receiving an error that seems to indicate corruption select * from some_table where text_field like ‘%the fox did not go ...