Summary: Is your Access database corrupt? Need to know how to repair a corrupt Access database? Read this post to explore the methods to repair a corrupt Access database. Also, check out step-wise instructions to recover data from the corrupted db. If nothing works, use Stellar Repair for Access software to repair your database and recover its objects without downtime.
Corruption in MS Access database usually occurs when errors are found in the underlying binary file format of the database. When that happens, you may face random errors or difficulty in accessing Access database files (.MDB/.ACCDB).
Following are other reasons that may lead to Access database corruption:
For detailed information on the reasons leading to Access database corruption, refer to the blog: Top 10 Access Database Corruption Causes
Tip! Check out this article on MDB repair for information about repairing MS Access 2003 or a lower version database.
You can fix the corrupted database manually or use DIY (do-it-yourself) software.
You can use the Microsoft Access built-in ‘Compact and Repair’ feature for repairing a corrupt .MDB/.ACCDB database file.
Steps to compact and repair the database that is open:
If an Access database turns corrupt when the database is still open, and you haven’t saved any changes made to the database, follow these steps to compact and repair your database:
Access will create a copy of the compacted and repaired database at the same location as the original database.
Steps to compact and repair the database you cannot open:
If you cannot access your corrupt database, execute the following steps to compact and repair the database:
Note: Before performing the below steps, make sure that the database file is no longer in use by any other user. These steps apply to Access 2013, 2016, and 2019.
Figure 5 – Double-click the Access Database
After performing these steps, a copy of the compacted and repaired database (i.e. Database 1) will be created at the same location as the original database (i.e. Test_db).
If Compact and Repair does not work for you, use a professional Access database repair tool to fix database corruption.
Stellar Repair for Access is powerful DIY software you can use to repair and recover .MDB/.ACCDB file in a few simple steps. The Access repair tool previews all the recoverable database objects like tables, deleted records, queries, forms, reports, etc.; This is useful for the users to verify the data accuracy before saving it.
Follow these steps to perform Access database repair using the software:
The file will be saved at the desired location.
Follow the steps in the same sequence given below to attempt Access database recovery:
If you’ve created a backup of your Access database, try restoring the database from the backup copy. The detailed steps are listed below:
For detailed information on restoring and backing up an Access database, read this: How to Backup and Restore Access Database?
An .LDB file gets created when an Access db is opened or accessed for shared use (i.e., in a multi-user environment). The file has the same name as that of the Access database but is saved with an .ldb extension. The file helps in keeping track of all active users accessing the database.
When a user who last uses the database closes the file, the lock file is deleted automatically. But, it might not get deleted if the user doesn’t have delete permissions to the Access database (.mdf) file or the database is corrupt.
Note: Deleting the .ldb file is important to remove the lock on the .mdb file if you want to recover the data from that file.
Using the Jet Database Engine of Access helps auto-fix minor issues that crop up in the database from time to time while reading and writing data. Due to this, in most cases, you may never even find out that something went wrong. This is both good and bad. Good because your work is not interrupted, bad because corruption can worsen if not treated on time and may cause data loss.
This can be done by using this command line switch from Microsoft:
C:\Program Files\Microsoft Office\Office\MsAccess.exe /decompile C:\DatabasePath\FileName.mdb
Note: You may need to change the path shown above for MsAccess.exe if you installed it in a different location.
Try importing objects into a new Access database file by following these steps:
Figure 13 – Select Access under External Data
Note: This procedure might also help you repair the Access database file that might have turned corrupt due to damaged system tables.
There can be umpteen reasons that can turn an Access database corrupt, including increasing database size, hardware or software failure, etc. You can manually compact and repair the database to resolve the issue. However, the MS Access built-in ‘Compact and Repair’ command may fail to fix a severely corrupted Access database. In that case, you can recover data from the corrupted database by implementing the step-wise instructions discussed in this post. But, the manual troubleshooting steps do not guarantee to recover complete Access db. Stellar Repair for Access can also help you repair severely corrupt Access databases and recover all the database objects.
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.