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How Does Database Corruption Happen?

A corrupt database is a database that has lost some of its data or functionality. Seeing a corruption message is extremely concerning, especially if you don’t backup your files often. Fortunately, there are many ways to repair a database without losing valuable information. Once your database is repaired, it’s important to take the necessary steps to protect this from happening again.

Let’s learn more about how database corruption occurs and what you can do to protect your data and information.

Hardware Failure 

Most causes of database corruption are related to hardware failure. A computer stores everything on its hard disk drive. If this drive fails or crashes for any reason, everything on the disk becomes inaccessible. Some of the most common causes for hardware failure include computer viruses, abrupt system shutdowns, internal bugs and human error.

Software Problems

Sometimes, the problem lies within the software itself. If you have a corrupted SQL database, there could be a problem with SQL server or changes in the server account. Viruses and malware can also affect the SQL database. However, it’s usually corruption in the MDF files (primary database files) that is the problem. Manually repairing the database is possible, but if these don’t work, you’ll need a database repair expert like Arkware.

Poor Database Design 

It’s also possible to experience database corruption when your database has a poor design. If you’re having trouble with your database, consider who built it for you. If it wasn’t a database expert like Arkware, it’s possible it has issues like:

  • Little to no normalization

  • Improper selection of primary keys

  • No domains or naming standards

  • Poor or missing documentation

  • Improper storage or reference data

Human Errors 

The more users you have on your database, the more opportunities there are for corruption. Some of the most common sources of human error corruption are accidental data deletion, storing the SQL database in a compressed folder, upgrading software from an older to newer version or adding invalid data. Not installing the proper updates can also cause problems.

Arkware Can Help with Your Database Challenges 

If your database is corrupted, contact Arkware for a consultation. We can determine the reason for the corruption and the best ways to repair your database. We can also talk about a more reliable backup strategy and perhaps a new database that is built to your company’s needs and budget. Contact us today to learn more about repairing your corrupted database.

 

Poor Practices in Database Design

A program like Microsoft Access makes it easy to build a database that is fast and optimized. You can choose from the available templates or create your own. If you use a template, all you need to do is plug in your information and voila! If your needs are more complex, you can hire a database expert like Arwkare to build a personalized database. 

However what happens when you’ve already paid someone to build your database and they didn’t do an adequate job? Unfortunately, this happens. If your database isn’t running as well as it should, it’s possible that it has a poor design with one or more of these practices. 

Poor Normalization 

Database normalization is the process of structuring a database to avoid redundant or duplicate information. Unfortunately, some databases are designed on the fly without following the rules of normalization. 

At the very least, all databases should be normalized to third normal form. With this setup, each column of a table will be dependent on the primary identifier. If your database doesn’t comply with first, second or third normal form, consider redesigning these tables. We promise – it will pay off in the long run! 

Improper Naming 

We’re not going to get into the details on how to best name things as this is a topic in itself. What we want to stress is the need for consistency. The names you choose for your database are not just for identifying objects but also to allow future programmers, users, etc. to quickly and easily understand your database. In other words, no one should have to read an exhaustive manual to find out what a name means.

Lack of Documentation 

When you carefully name your objects, columns and so forth, it makes it clear to everyone what your database is modeling. Follow a consistent naming standard as well as definitions on tables, columns, relationships and default and check constraints. Poor design tends to have a lack of documentation, and this makes it difficult for users to understand your database. 

Not Using Stored Procedures 

Stored procedures refer to SQL code that is saved to be used over and over again. While procedures might take a bit more effort at first, they’re worth it in the long run. Stored procedures offer the following advantages: 

  • Quick response times because the procedures are created and stored 
  • Option to group all the required SQL statements in a procedure and execute them at once
  • Avoid repetition of code 
  • Use additional SQL functionalities 
  • Use the code in any number of applications 

Lack of Testing 

When it comes to testing, we recommend having a strict testing plan in place. This plan should go through every part of the development process to identify bugs and diagnose and fix problems that would otherwise lead to corruption. Good databases are frequently tested and end up running optimally because of it. 

The best way to ensure a functional, efficient database design is by working with the right team of database development experts. Arkware has decades of experience building, repairing and optimizing databases and we always follow the best practices. Contact us today to discuss your database needs. 

 

How to Repair a Corrupted Access Database

Is your Microsoft Access database giving you problems? If your database has become corrupt, is having trouble opening or is prone to errors, rest assured that there are ways to get back on track with an efficient, reliable database. 

The Arkware team has extensive experience recovering MS Access databases. We’ve recovered many databases for our customers and can likely do the same for you! We have some tips to help you recover your database on your own, but if you’re unsuccessful, give us a call and we’ll be happy to assist. 

What Causes Database Corruption? 

Despite all of the advantages to Microsoft Access, it’s not uncommon for databases to become corrupted. This means that you could lose or damage data at any point in time. The most common causes of lost or damaged database files are: 

  • Hardware failure 
  • Improper shutdown 
  • Virus infection 
  • Interruption in changing data 
  • Third-party plugins
  • Software bugs 

Ways to Fix a Corrupted Database

Digital assets can get corrupted over time, so there are a number of ways to deal with this headache. It’s important to know your options because you can’t use just any tools. It all depends on the reason for the corruption, if you have a backup saved and how comfortable you are at recovery. 

Here are some of the most common ways to repair a corrupted Access database: 

  • Access your backups. The best way to secure yourself against database loss is to create a backup copy. This way, you can restore all of your lost data in one simple step. To do this, open your database, go to the File tab, hit Save As and choose Save Database As >> Backup Database >> Save As.
  • Compact and repair tool. You can also use the Compact and Repair tool to compress your database and restore damaged files. Go to the File tab and choose Compact Repair Database. This is a built-in feature of Access. 
  • Use a professional tool. You can also try a professional tool to repair a corrupt database. Many companies offer them, though not all are created equal. And, because you have to pay for these tools, you don’t want to invest in something that doesn’t work. Contact Arkware for a list of approved tools to help with database repair. 

If your database isn’t working the way it should, it’s possible that it’s corrupted and needs to be repaired. These tools are effective, but it helps to know what’s wrong with your database in the first place. To have your database analyzed and repaired, contact Arkware today. 

 

7 Good Tech Habits All Employers Should Adopt

February 9th is Safer Internet Day, a day to recognize the importance of internet safety. It’s easy to take the internet for granted because it’s such an integral part of our everyday lives and embedded in almost everything we do. But it’s still important to adopt good tech habits that will keep your information safe from hackers. 

Below are seven good tech habits that you and your colleagues should practice daily. 

1. Backup your computer. 

We probably sound like a broken record, but we can’t stress enough the importance of backing up your computer. No one is exempt from data loss, after all. Plus, backing up your files is incredibly easy. You can set it up to have your backups run automatically. This way, if there’s ever a problem, you can revert to your last save. 

2. Keep hard drives and desktops clean. 

A cluttered desktop makes things hard to find and slows down your productivity. It can also slow down your computer. Go through your desktop and get rid of files and folders you no longer need. Or at least condense your folders so that you can stay organized and find information quickly.

3. Avoid getting malware. 

Be sure to install a good antivirus software program on your computer to get rid of viruses and protect yourself from hackers. Even if you’re not getting viruses, you could still be spreading them to others. Here’s a good article on protecting your database from hackers. Aside from antivirus software, also encrypt all data. 

4. Stay safe on public WiFi.

If you have employees working remotely, make sure they stay safe on public WiFi. Chances are, some of your employees will be working from places like Starbucks, but using public WiFi can open up your data to all types of attacks. And, just because your employees use a password doesn’t mean it’s safe. Anyone who is on that network can access your data.

5. Be smart about internet scams.

Make sure that your employees are aware of hoaxes, scams and myths. Scammers are a lot more creative these days, so internet scams are not always hard to fall for. Educate employees on these hoaxes and how to avoid them. If something looks out of place, it probably is. 

6. Know the maintenance your computers need. 

All computers need routine maintenance to keep them in good working condition. Your IT team is responsible for this, but you can do your part as well. Some of the best things you can do include updating software, running antivirus software and backing up your hard drive. 

7. Use secure passwords. 

Even the most secure passwords aren’t that secure. Hackers are much more sophisticated these days so it’s much easier for them to uncover passwords. Also, saving your passwords to your browser isn’t that safe so choose a safe password manager instead. 

Practicing these habits will keep your sensitive information protected. If you’re concerned about how secure your database is, contact Arkware today. We can take a look at your database and make sure that all information is encrypted and secure.

How to Compact Your Database So it Runs Faster

As time goes by, it’s only natural that your database file is going to grow larger and larger. Some people assume that by deleting information, their database will shrink down, but it doesn’t work this way. Access doesn’t just remove the space once occupied by your queries and records. That space still remains in the database, which can leave it much larger than it needs to be. 

The problem with large databases is that they don’t perform as well as smaller ones. They take longer to load, and you want your queries and reports to run as fast as possible. Also, if the database is not regularly compacted, it’s more likely to be corrupted. Fortunately, it’s easy to compact your database so that it runs more efficiently. 

Introducing the Compact and Repair Command

The Compact and Repair Command removes excess from your database. Ideally, you should use this tool once a week or after making design changes. Here’s how to use this tool: 

  • Open the database and click Database Tools on the Ribbon.
  • Click the Compact and Repair Database button from the Tools group. 

Using this tool, you’ll see a status bar that lets you know how the compact process is progressing. When the progress bar is gone, this means the compact process is complete. In return, you get a much neater, faster and stable database file. If you’ve split your database, keep in mind you’ll have to compact both the front- and back-ends of the database. 

What if You Want to Compact Your Database Automatically? 

If you prefer to compact your database every time you close it, there is a way to do this. Some people like this option because the work is done for them automatically. Here are the steps to follow to set up this feature: 

  • Click the File tab on the Ribbon.
  • Click the Access Options button in the menu bar. 
  • Click Current Database from the list.
  • Check the Compact on Close box.
  • Click OK to save the changes.

One word of caution. When using Compact on Close, it’s for the front-end file only. Do not use Compact on Close on the back-end file because it can cause corruption if another user is working on the back-end at the same time. 

Still Having Trouble? Contact Arkware 

Compacting your database is how you get rid of the allotted space that your records and queries once took up. It’s important to compact your files often as this allows your database to run efficiently and reduces the risk for corruption. If your database is still running slow, contact Arkware for a more thorough look at your database.