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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how to prevent an oracle block corruption from duplicating a database with a few nologging tables

I got a few data corruptions in a test db when I performed a duplicate from a production db where a few tables have the nologging option. Oracle support suggested to turn on the force logging option ...
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How do I recover from MySQL InnoDB table/index corruption?

While trying to upgrade a database (in place) I got the following error. The server starts up and everything seems to be fine, except that the table mentioned in the message is no longer accessible. ...
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Will canceling InnoDB compression that's already in progress corrupt data?

I have a 155GB table that is in the process of being compressed. ALTER TABLE $table_name ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=8; This compression has been running for a long time and is impeding my ...
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MyISAM : Should I be concerned by these warnings?

I restored some tables from recent Databases backups. Because Im supporting a legacy system that only uses MyISAM tables in their DBs, for backing up I used a little script that pretty much copies all ...
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FATAL: catalog is missing 1 attribute(s) for relid 2662

I have a server with PostgreSQL9.1-903 (Windows 7 Professional). After a power cut my database is inaccessible (I presume that the database is corrupted). The postgreSQL service starts but the ...
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full windows server backup with database files but not backed up through sql server

I am new to this and I have been backing up a windows sbs2011 server each night doing a full backup. The sql files are included but not backed up using sql backup program. Now one of the database ...
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285 views

RDS MYSQL instance rebooted and won't load INNODB table

So my production db in RDS apparently either crashed or was rebooted during a version update, and upon being restarted mysql couldn't load one of the innodb tables: as evidenced by the following error ...
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Receiving error when running DBCC CheckDB - multiple IAM pages

Running DBCC CHECKDB (dbname) WITH NO_INFOMSGS, ALL_ERRORMSGS results in this error: Table error: Multiple IAM pages for object ID 813245952, index ID 1, partition ID 72057594073972736, ...
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postgresql 9.3 with Ubuntu 14.04.1 LTS throw 's ERROR: invalid page in block 105 of relation base/16385/17407

This is Ubuntu 14.04.1 LTS with postgresql 9.3 in production, Now i got this below error's in log. # tail -f /var/log/postgresql/postgresql-9.3-main.log 2015-01-08 14:10:16 IST CONTEXT: automatic ...
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mysqldump with --single-transaction seems to be “fixing” InnoDB tables with page corruption - why?

I'm trying to find out what exactly is happening here. I've been intentionally corrupting index pages in InnoDB tables, changing bytes in user record areas that actually contain information (largest ...
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Corrupted Filesystem: Possible to restore databases from the contents of /var/lib/mysql?

Using CentOS 6.4 x64. Not sure what happened but somehow my VPS filesystem got corrupted and it is now in a permanent read-only state. I've been working with my hosting provider's sys. admin. but ...
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Possible schema corruption. Run DBCC CHECKCATALOG

Good Evening to all. I was working with sql server 2008. Thing i did: Actually i was noticed that the free space available in C drive reaches below 1 GB .So i thought to Club the D drive with C ...
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CHECKDB Allocation Errors Msg 2576, could not repair, object id does not exist

I inherited a database that has no value in LastKnownGood. I ran repair allow data loss, says it was successfully repaired, but no change to the errors when I run checkdb again. In case it was a SQL ...
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SQL Server TDE Stuck at Encryption_State 2 and 0% on a Tiny DB

I'm having a heck of a time with this issue and can't figure out what is wrong. I'm not sure how long this tiny DB has been in 'encryption_state = 2' from query: SELECT * FROM ...
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Dropping a corrupt table in innodb_force_recovery 6

As often happens in mysterious shutdowns during large queries, things ran afowl with InnoDB on my XAMPP MySQL installation (Windows 7 x64). I rebooted and ran Startup Repair, then loaded MySQL to ...
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66 views

MS Access database corruption

I have been searching for an answer to this, but no luck. Has anyone ever seen the below error when loading an Access 2010 database? "[database name] has detected corruption in this file. To try to ...
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Uploaded files corrupted except txt/csv

I have an ASP.NET MVC 4 Application with standard CRUD functionality plus a file Upload capability. Currently I am struggling with the files being corrupted after the download. I created a ...
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423 views

mysql doesnt have write access in data dir?

I am running a MySQL on my Windows 7 64 bit development machine at work and I can't seem to get around a database corruption issue. In my unit tests it is telling me that the storage engine (which is ...
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MySQL loses connection

I think we've got a corrupt table in this situation. A website with a Drupal setup we host shows the following error: General error: 2006 MySQL server has gone away: SELECT expire, value FROM ...