Dbcc Checkdb Completes Without Error But Log Shows Error
Contents |
resources Windows Server 2012 resources Programs MSDN subscriptions Overview Benefits Administrators Students Microsoft Imagine Microsoft dbcc checkdb syntax Student Partners ISV Startups TechRewards Events Community Magazine Forums dbcc checkdb example Blogs Channel 9 Documentation APIs and reference Dev centers Retired content Samples We’re sorry. dbcc checkdb repair_allow_data_loss The content you requested has been removed. You’ll be auto redirected in 1 second. Transact-SQL Reference (Database Engine) Management Commands DBCC (Transact-SQL) DBCC
Dbcc Checkdb Repair_rebuild
(Transact-SQL) DBCC CHECKDB (Transact-SQL) DBCC CHECKDB (Transact-SQL) DBCC CHECKDB (Transact-SQL) DBCC CHECKALLOC (Transact-SQL) DBCC CHECKCATALOG (Transact-SQL) DBCC CHECKCONSTRAINTS (Transact-SQL) DBCC CHECKDB (Transact-SQL) DBCC CHECKFILEGROUP (Transact-SQL) DBCC CHECKIDENT (Transact-SQL) DBCC CHECKTABLE (Transact-SQL) DBCC CLEANTABLE (Transact-SQL) DBCC DBREINDEX (Transact-SQL) DBCC dllname (FREE) (Transact-SQL) DBCC DROPCLEANBUFFERS (Transact-SQL) DBCC FLUSHAUTHCACHE how to run dbcc checkdb (Transact-SQL) DBCC FREEPROCCACHE (Transact-SQL) DBCC FREESESSIONCACHE (Transact-SQL) DBCC FREESYSTEMCACHE (Transact-SQL) DBCC HELP (Transact-SQL) DBCC INDEXDEFRAG (Transact-SQL) DBCC INPUTBUFFER (Transact-SQL) DBCC OPENTRAN (Transact-SQL) DBCC OUTPUTBUFFER (Transact-SQL) DBCC PDW_SHOWEXECUTIONPLAN DBCC PDW_SHOWPARTITIONSTATS DBCC PDW_SHOWSPACEUSED DBCC PROCCACHE (Transact-SQL) DBCC SHOW_STATISTICS (Transact-SQL) DBCC SHOWCONTIG (Transact-SQL) DBCC SHRINKDATABASE (Transact-SQL) DBCC SHRINKFILE (Transact-SQL) DBCC SHRINKLOG DBCC SQLPERF (Transact-SQL) DBCC TRACEOFF (Transact-SQL) DBCC TRACEON (Transact-SQL) DBCC TRACESTATUS (Transact-SQL) DBCC UPDATEUSAGE (Transact-SQL) DBCC USEROPTIONS (Transact-SQL) TOC Collapse the table of content Expand the table of content This documentation is archived and is not being maintained. This documentation is archived and is not being maintained. DBCC CHECKDB (Transact-SQL) Other Versions SQL Server 2012 Updated: September 21, 2016THIS TOPIC APPLIES TO:SQL Server (starting with 2012)Azure SQL DatabaseAzure SQL Data Warehouse Parallel Data Warehouse Checks the logical and physical integrity of all the objects in the specified database
DBCC CHECKDBBy: Paul Randal Posted on: November 18, 2014 9:24 am This is a quick post to let you know about a bug that a few people are dbcc checkdb tempdb hitting when running DBCC CHECKDB. The symptoms are a series of errors in the
What Does Dbcc Checkdb Do
error log plus SQL Server forcibly shuts itself down and restarts. I've heard of people hitting the bug on SQL
Dbcc Checkalloc
Server 2014 and SQL Server 2012 SP1. [Update 2/24/15] Microsoft has confirmed that it's a bug in 2014 and 2012 and they're planning a fix for the next CU of both. [Update 3/18/15] The https://msdn.microsoft.com/en-us/library/ms176064.aspx fix for SQL Server 2012 is in CU5 of SP2 and is described in KB 3044958. The error log symptoms look something like I show below: 2014-11-18 09:04:15.69 spid64 The operating system returned error 665(The requested operation could not be completed due to a file system limitation) to SQL Server during a write at offset 0x00001EE6FD8000 in file 'C:\SQLskills\\Company_file2.ndf:MSSQL_DBCC23'. Additional messages in the SQL Server error log and http://www.sqlskills.com/blogs/paul/bug-error-3449-server-restart-dbcc-checkdb/ system event log may provide more detail. This is a severe system-level error condition that threatens database integrity and must be corrected immediately. Complete a full database consistency check (DBCC CHECKDB). This error can be caused by many factors; for more information, see SQL Server Books Online. 2014-11-18 09:04:15.72 spid64 Error: 3314, Severity: 17, State: 3. 2014-11-18 09:04:15.72 spid64 During undoing of a logged operation in database 'Company', an error occurred at log record ID (887654:3321:14). Typically, the specific failure is logged previously as an error in the Windows Event Log service. Restore the database or file from a backup, or repair the database. 2014-11-18 09:04:34.38 spid64 Error: 831, Severity: 20, State: 1. 2014-11-18 09:04:34.38 spid64 Unable to deallocate a kept page. 2014-11-18 09:04:34.40 spid64 Error: 3449, Severity: 21, State: 1. 2014-11-18 09:04:34.40 spid64 SQL Server must shut down in order to recover a database (database ID 23). The database is either a user database that could not be shut down or a system database. Restart SQL Server. If the database fails to recover after another startup, repair or restore the database. The 665 error is from the snapshot file that DBCC CHECKDB creates hitting an NTFS limitation on
log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company http://dba.stackexchange.com/questions/138078/dbcc-checkdb-errors Business Learn more about hiring developers or posting ads with us Database Administrators Questions Tags https://www.brentozar.com/archive/2014/05/dbcc-checkdb-faq/ Users Badges Unanswered Ask Question _ Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up dbcc checkdb and rise to the top DBCC CHECKDB errors up vote 5 down vote favorite I am having some issues with my SQL Server database. When I run this: select * from dbo.Entity where Oid='191FAF30-4729-4145-8106-60E34A8E164C' ...it spits out the following error. Msg 823, Level 24, State 2, Line 2 The operating system returned error 1(Incorrect function.) to SQL Server during a read at offset 0x00000021442000 in file 'D:\Database\db.mdf'. Additional messages in the SQL Server error log dbcc checkdb completes and system event log may provide more detail. This is a severe system-level error condition that threatens database integrity and must be corrected immediately. Complete a full database consistency check (DBCC CHECKDB). This error can be caused by many factors; for more information, see SQL Server Books Online. The event log error is same as above. So I ran a DBCC CHECKDB and it spit out the following errors: CHECKDB found 0 allocation errors and 0 consistency errors in database A severe error occurred on the current command. The results, if any, should be discarded. I tried dbcc checktable ('Entity') but message was: Msg 0, Level 11, State 0, Line 0 A severe error occurred on the current command. The results, if any, should be discarded. Version information: Microsoft SQL Server 2012 - 11.0.2100.60 (X64) Feb 10 2012 19:39:15 Copyright (c) Microsoft Corporation Enterprise Edition: Core-based Licensing (64-bit) on Windows NT 6.2
Facebook Twitter LinkedIn YouTube GitHub DBCC CheckDB FAQ: Check for Corruption in SQL Server May 27, 2014Kendra Little63 comments DBCC CheckDB: Frequently Asked Questions It's eating our logo. Will it stop at nothing??? Q: Do I really need to run DBCC CheckDB? Yes. If you're even partially in charge of a SQL Server and you'd like to keep your job, you should make sure CheckDB is being run regularly. (Seriously!) Q: But WHY do I need to run CheckDB? CheckDB helps alert you when data becomes corrupt. Data corruption can cause your users to get incorrect data, cause queries to fail, or can even take your entire SQL Server instance offline. Corruption can happen anytime. It could be caused by a problem in SQL Server, an issue with Windows, or an issue with your storage. It could also happen due to other types of software- something like a filter driver (replicating data, defragmenting drives, etc) or a virus scanner. Q: How often do I need to run CheckDB? Every day you'd like to keep your job, you should run CheckDB. OK, maybe that's a bit extreme. Most people run CheckDB against user databases every weekend. That's "normal". Is normal good enough for you? Well, maybe not! When availability is important, people choose to run CheckDB more frequently: often once per day. For system databases, why not check them every night? Q: How can I make CheckDB faster? First, do you really need to make it faster? If you have a regular maintenance window where decreased performance is OK, that's often good enough. The best way to speed up CheckDB is to offload the work to a totally different server. Do this by automating a process where you regularly restore a full backup, then run CheckDB. This approach has multiple benefits: Tests your restores Doesn't impact the production dat