The main reasons for MS Access database corruption are:
1. Hardware Failure: The most common reason for MS Access database corruption is Hardware failure. If you are using hardware that is outmoded and does not allow for complete utilization of the application, there are very high chances that it would ultimately lead to a system crash and corruption of valuable data. If the Access data files are stored in bad sectors of the hard disk, the files cannot be opened fully or partially. Sometimes, when the system is connected to network devices like NIC, switches, hubs, routers, etc., it can also cause damage to data files. Sudden and unexpected power failure is also a reason for corrupt files.
2. Failed Software: The corrupt files caused due to software failure are mainly due to incorrect file recovery system. Software issues can be caused by a Virus or bugs contamination. If the user has not properly exited after making changes in the files of the Access. Corruption can also occur due to damage in system files.
3. Faulty database design: If there is a problem in the coding of the database or the structure, it can also result in abnormalities in files of MS Access.
4. Usage by multiple users: If the MS access files- MBD and ACCDB are used by multiple users at the same time, it can lead to damage in data files.
5. Disk Formatting: Intentionally or accidentally formatting the internal or external drive can cause abnormalities in data files. Frequently adding and deleting files from MEMO fields can also damage the access files in addition to improperly installing plugins.
Ways to prevent MS Access database file corruption:
1. To prevent file corruption, up to date hardware with enough storage capacity should be used.
2. By using correct file system recovery to keep the software in working condition
3. To prevent the sudden shutdown, taking care of uninterrupted power supply should be of top priority. Care should be taken to not shut the system abruptly.
4. The system design and codes should be up to the mark and fault free.
5. Install an efficient antivirus to the system to counter virus attacks.
6. Simultaneous usage of Database files by multiple users should be avoided.
7. Avoiding addition/deletion of data to and from MEMO filed on a regular basis.
8. Ensure proper network connectivity to install plugins properly.
9. Properly exiting from the data files after making changes.
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Possible Solutions to MS Access database getting Corrupted:
- New database creation and file migration:
A new database can be created and files are migrated to a new database. This can be done by moving data files one by one to the new database. - By using Compact and Repair utility:
For this close the Access database if it is open.
Go to Tools> database utilities option> Click on Compact and Repair Utility> In the compact utility dialogue box enter New file name> Save tab.
If your data files are not shown by this method, then the files are severely corrupted. In this case, you should opt for the method described below. - Fixing database Corruption by MS Access Recovery Tool:
A very easy and smart way to deal with the corruption of MS Access database files is by using the Access Recovery Tool. This tool helps in the recovery of files from damaged Access files and can recover large OLE, MEMO data & BLOB data. .This tool has dual modes to handle minor and major corruption. The user can save the recovered data at the required location of his choice. It lets users recover deleted tables and system records and can work on the Window-based command prompt. Access Recovery tool allows users to generate a log file. This tool has an easy to use Graphic user interface and is compatible with all Windows Operating Systems including Windows 10.
Conclusion:
MS Access users around the world face this problem of database corruption causing them to lose a valuable and large amount of data. There are many manual methods to prevent damage to data but when a large amount of data is involved and gets damaged, the only smart and efficient solution is to use the MS Access recovery tool to recover corrupt data files.