Stellar Logo
  • For Individuals
    Back to main menu

    For Individual

    • Windows Data Recovery

      Recovers lost or deleted Office documents, emails, presentations & multimedia files.

      • Free
      • Standard
      • Professional
      • Premium
    • Mac Data Recovery

      Recovers deleted files, photos, videos etc. on Mac.

      • Free
      • Standard
      • Professional
      • Premium
    • Photo Recovery

      Recover photos, videos, & audio files from all cameras and storage on Windows or Mac.

      • Standard
      • Professional
      • Premium
    • iPhone Data Recovery

      Recover deleted photos, videos, contacts, messages etc. directly from iPhone & iPad.

      • Recover
      • Erase
      • Toolkit
    • Video Repair

      Repair multiple corrupt videos in one go. Supports MP4, MOV & other formats.

      • Standard
      • Premium
    • Photo Repair

      Repair multiple corrupt photos in one go. Supports JPEG & other formats.

      • Standard
      • Professional
      • Premium
  • For Business
    Back to main menu

    For Business

    • Email Repair
      • Exchange Repair Repair corrupt EDB file & export mailboxes to Live Exchange or Office 365
      • Outlook PST Repair Repair corrupt PST & recover all mailbox items including deleted emails & contacts
      • OLM Repair Repair Outlook for Mac (OLM) 2011 & 2016 backup files & recover all mailbox items
      • Exchange Toolkit Repair EDB & Exchange backup file to restore mailboxes, convert OST to PST, & convert EDB to PST
      • Active Directory Repair Repair corrupt Active Directory database (Ntds.dit file) & extract all objects in original form
    • Email Converter
      • EDB to PST Convert online & offline EDB file & extract all mailbox items including Public Folders in PST
      • OST to PST Convert inaccessible OST file & extract all mailbox items including deleted emails in PST
      • NSF to PSTConvert IBM Notes NSF file & export all mailbox items including emails & attachments to PST
      • MBOX to PSTConvert MBOX file of Thunderbird, Entourage & other clients, & export mailbox data to PST
      • OLM to PST Convert Outlook for Mac Data File (OLM) & export all mailbox data to PST in original form
      • GroupWise to PST Convert GroupWise mail & export all mailbox items - emails, attachments, etc. - to PST
      • EML to PSTConvert Windows Live Mail (EML) file & export mailbox data - emails, attachments, etc. - to PST
      • Office 365 to PSTConnect to Office 365 account & export mailbox data to PST and various other formats
      • Migrator for Office 365Quickly migrate Outlook data files(OST/PST) directly to Office 365 or Live Exchange
    • File Repair
      • SQL Repair Repair corrupt .mdf & .ndf files and recover all database components in original form
      • Access RepairRepair corrupt .ACCDB and .MDB files & recover all records & objects in a new database
      • QuickBooks RepairRepair corrupt QuickBooks® data file & recover all file components in original form
      • MySQL RepairRepair MyISAM & InnoDB tables and recover all objects - keys, views, tables, triggers, etc.
      • Excel RepairRepair corrupt Excel (.XLS & .XLSX) files and recover tables, charts, chart sheet, etc.
      • BKF RepairRepair corrupt backup (BKF, ZIP, VHDX and .FD) files and restore complete data
      • Database ConverterInterconvert MS SQL, MySQL, SQLite, and SQL Anywhere database files
      • PowerPoint RepairRepair corrupt PPT files and restore tables, header, footer, & charts, etc. like new
      • File Repair ToolkitRepair corrupt Excel, PowerPoint, Word & PDF files & restore data to original form
    • Data Recovery & Erasure
      • Data RecoveryRecover lost or deleted data from HDD, SSD, external USB drive, RAID & more.
      • Tape Data RecoveryRetrives data from all types and capacities of tape drives including LTO 1, LTO 2, LTO 3, & others.
      • Virtual Machine RecoveryRecover documents, multimedia files, and database files from any virtual machine
      • File ErasurePermanently wipe files and folders, and erase traces of apps and Internet activity.
      • Mobile ErasureCertified and permanent data erasure software for iPhones, iPads, & Android devices
      • Drive ErasureCertified and permanent data erasure software for HDD, SSD, & other storage media
    • Toolkit
      • Exchange Toolkit5-in-1 software toolkit to recover Exchange database, convert EDB to PST, convert OST to PST, restore Exchange backup, and reset Windows Server password.
      • Outlook ToolkitComprehensive software suite to repair PST files, merge PST files, eliminate duplicate emails, compact PST files, and recover lost or forgotten Outlook passwords.
      • File Repair ToolkitPowerful file repair utility to fix corrupt Word, PowerPoint, and Excel documents created in Microsoft Office. It also repairs corrupt PDF files and recovers all objects.
      • MS SQL Toolkit5-in-1 software toolkit to repair corrupt SQL database, restore database from corrupt backup, reset database password, analyze SQL logs, & interconvert databases.
      • Data Recovery ToolkitSoftware helps to recovers deleted data from Windows, Mac and Linux storage devices. Also supports recovery from RAIDs & Virtual Drives.
    • Forensic
      • Email ForensicAdvanced email forensic solution for cyber experts to audit, analyze, or investigate emails & gather evidences.
      • Log Analyzer for MySQLAnalyze forensic details of MySQL server database log files such as Redo, General Query, and Binary Log.
      • Exchange AuditorExchange Server monitoring solution to automate audits, scans and generate reports ìn real-time.
      • Log Analyzer for MS SQLTrack & analyze MS SQL Server database transactions log files.
  • Our Partners
  • Lab Services
  • Support
  • About

Trending Searches

Data Recovery

Photo Recovery

Video Repair

iPhone Data Recovery

File Erasure Software

Exchange Repair

OST to PST

PST Repair

Raid Recovery

MS SQL Repair

Database Recovery 3 minute read

How to Fix DBCC CHECKDB Consistency Errors?

Charanjeet Kaur
Written By
Charanjeet Kaur
Kuljeet Singh
Approved By
Kuljeet Singh
stellar calander
Updated on
January 23rd, 2023

Summary: This blog will help you understand ‘how to fix DBCC CHECKDB consistency errors' in the SQL Server database using manual methods or a professional SQL repair tool. It will also discuss the possible causes of database consistency errors and help you determine the cause behind the errors.

Free Download for Windows

Contents

  • What Causes Consistency Errors in SQL Server Database?
  • How to Determine the Causes behind Consistency Errors in SQL Server Database?
  • Methods to Fix DBCC CHECKDB Consistency Errors in SQL Server Database
  • What Else Can You Do?
  • Conclusion

On executing the DBCC CHECKDB command in SQL Server, you may encounter a database consistency error that reads something like:

“Date/Time spid53      DBCC CHECKDB (mydb) executed by MYDOMAIN\theuser found 15 errors and repaired 0 errors. Elapsed time: 0 hours 0 minutes 0 seconds. Internal database snapshot has split point LSN = 00000026:0000089d:0001 and first LSN = 00000026:0000089c:0001.  This is an informational message only. No user action is required.”

The message above tells the number of consistency errors found in the SQL database and how many got repaired.

Quick Solution: You may consider using DBCC CHECKDB with repair options to fix database consistency errors. But, keep in mind, executing dbcc checkdb with ‘REPAIR_ALLOW_DATA_LOSS’ can lead to data loss. Use Stellar Repair for MS SQL software to repair and restore the SQL database while maintaining data integrity. The software can help repair both SQL Server MDF and NDF files and recover all the database objects. Download the free trial version of the software from the link provided below to ascertain its effectiveness.

What Causes Consistency Errors in SQL Server Database?

DBCC CHECKDB performs physical and logical consistency checks on database pages, allocation pages, index relationships, etc. If any of these checks fail, consistency errors are reported by the checkdb command. Several reasons cause DBCC to report consistency errors,such as issues in the hardware system or SQL Server Engine, file system corruption, or corrupted pages in memory.

Before attempting to resolve the db inconsistency problem, it is important first to understand why database consistency errors have occurred.

How to Determine the Causes behind Consistency Errors in SQL Server Database?

To find out what has caused database consistency errors, consider using:

1. Windows System Event Log

Checking the Windows System Event Log helps determine if the I/O problem is responsible for the SQL Server database consistency errors. It specifies if the cause behind the errors is related to a disk driver or hardware failure problem. There are different Event IDs logged in the System log that you can refer to find information on resolving the cause of the error.

Note: If you suspect that an issue in the underlying hardware results in database inconsistency errors, run the diagnostics program provided by your hardware manufacturer to identify potential hardware problems.

2. Analyze SQL Server ERRORLOG File

Check the SQL Server Error Log to find if any errors, such as Access Violations or Assertions, have been reported. Also, search for Msg 832 in the ERRORLOG file to determine if the database pages in the cache are damaged.

3. Chkdsk command to Test the File System Integrity

Problems with the file system are another reason that may result in a consistency issue in SQL db. Use the chkdsk command to check the file system integrity.

4. SQLIOSim to Perform Integrity Checks on Disk System

Use the SQLIOSim tool to check I/O integrity for the disk system. The tool can help you uncover potential data integrity issues. Refer to this link for more information about this tool.

Methods to Fix DBCC CHECKDB Consistency Errors in SQL Server Database

Note: If the error in question is caused due to hardware or file system issues, try resolving them before performing a restore or repair to fix the error.

Method 1 – Restore the Database from Backup

The first and most recommended solution you can try to fix the DBCC CHECKDB consistency error is to restore the db from an excellent known back-up. However, if the back-up is not up to date or is corrupted, proceed with the next solution.

Method 2 – Run DBCC CHECKDB with Minimum Repair Option

If restoring from the backup is not possible, try running the DBCC CHECKDB command with the minimum repair option to fix the consistency errors.

DBCC CHECKDB “REPAIR_ALLOW_DATA_LOSS is the minimum repair level” that you can attempt to resolve the errors. Be wary, though, the REPAIR_ALLOW_DATA_LOSS option, as the name implies, can lead to data loss. Essentially, the repair option may deallocate data (such as rows, pages, or series of pages), which cannot be accessed or recovered by the user.

Read this: How to Repair SQL Database using DBCC CHECKDB Command

What Else Can You Do?

Use a specialized SQL database repair tool such as Stellar Repair for MS SQL to fix database errors and restore the database to a consistent state, keeping the data intact. It is the best alternative to the DBCC CHECKDB Repair_Allow_Data_Loss option that helps repair severely corrupted SQL db (MDF and NDF) files and recovers all the SQL db objects.

Check out the video below to learn about the complete working process of the software:

Conclusion

Problems with the file system or hardware or corrupted database pages in memory are a few reasons that can result in database consistency errors reported by DBCC CHECKDB. You can check the Windows System Event Error Log or SQL Server Error Log to find more about the causes behind the errors and determine if resolving the file system or hardware can fix the consistency errors. If not, you can try restoring the database from back-up or running DBCC CHECKDB with the Repair_Allow_Data_Loss option to repair the database. If nothing works, using Stellar Repair for MS SQL software may help. The software can help reinstate access to the database in a few clicks.

About The Author

Charanjeet

Charanjeet is a Technical Content Writer at Stellar®who specializes in writing about databases, e-mail recovery, and e-mail migration solutions. She loves researching and developing content that helps database administrators, organizations and novices to fix multiple problems related to MS SQL and MySQL databases and Microsoft Exchange.

Best Selling Products

Stellar Repair for MS SQL

Stellar Repair for MS SQL

Stellar Repair for MS SQL is an enterpri

Read More
Stellar Toolkit for MS SQL

Stellar Toolkit for MS SQL

3-in-1 software package, recommended by

Read More
Stellar Converter for Database

Stellar Converter for Database

Stellar Converter for Database is an eff

Read More
Stellar Repair for Access

Stellar Repair for Access

Powerful tool, widely trusted by users &

Read More

Leave a comment Cancel reply

Your email address will not be published. Required fields are marked *

Image Captcha
Refresh Image Captcha

Enter Captcha Here :

Table of Contents    arrow

  1. What Causes Consistency Errors in SQL Server Database?
  2. How to Determine the Causes behind Consistency Errors in SQL Server Database?
  3. Methods to Fix DBCC CHECKDB Consistency Errors in SQL Server Database
  4. What Else Can You Do?
  5. Conclusion

Categories

Related Posts

related post
Database Recovery

[Fixed]: Database cannot be Opened. It is in the Middle of a Restore

Stellar Author Bharat Bhushan February 6, 2023 Read More
related post
Database Recovery

How to Fix SQL Attach Database Error 9004?

Stellar Author Bharat Bhushan February 3, 2023 Read More
related post
Database Recovery

How to Rebuild and Restore Master Database in SQL Server?

Stellar Author Bharat Bhushan February 2, 2023 Read More

Free Trial for 60 Days

Technology You Can Trust A Brand Present Across The Globe

  • tuv1
  • tuv2
  • Nist
  • hipa

Stellar Official Website

Stellar Data Recovery Inc.
48 Bridge Street Metuchen,
New Jersey 08840,
United States

ALSO AVAILABLE AT

ALSO AVAILABLE AT

About

  • About us
  • Career
  • ISMS Policy
  • Privacy Policy
  • Terms of Use
  • License Policy
  • Refund Policy
  • End User License Agreement

RESOURCES

  • Blog
  • Articles
  • Product Videos
  • Knowledge Base
  • Case Studies
  • Whitepapers
  • Software Catalog

NEWS & EVENTS

  • News
  • Events

PARTNERS

  • Affiliates
  • Resellers
  • Distributors

Useful Links

  • Contact Us
  • Support
  • Special Offers
  • Student Discounts
  • Awards & Reviews
  • Downloads
  • Store
  • Sitemap

Stellar & Stellar Data Recovery are Registered Trademarks of Stellar Information Technology Pvt. Ltd. © Copyright 2023 Stellar Information Technology Pvt. Ltd. All Trademarks Acknowledged.

Follow Us Facebook Twitter Linkedin Youtube

  • Notron
  • dcma

This website uses cookies in order to provide you with the best possible experience and to monitor and improve the performance of the site in accordance with our cookie policy. You can reject cookies at any time in your browser settings.

cookies-cross
Got it