Open DataBase Connectivity, or ODBC, is a standard application programming interface (API) that was originally developed in the 1990s by Microsoft and Simba Technologies. The purpose of ODBC is to make it possible to access information from any application, regardless of the database system being used. Microsoft Access is an example of an ODBC compliant database.
How important is ODBC and what does it enable you to do? Let’s learn more about ODBC and why the most popular database management systems are compliant.
What Does ODBC Compliance Mean, Exactly?
When a database is ODBC compliant, it means that it can exchange information with other databases. This is made possible with ODBC drivers that let different database programs communicate with each other and understand the data being exchanged. ODBC has been used for over 25 years and has become the industry standard in the database field.
There are four components to ODBC that work together to allow functions:
- Application. Any ODBC compliant application can be used, such as Microsoft Excel or Crystal Reports. The application performs processing by receiving results from the ODBC driver manager and passing SQL statements.
- Driver manager. Drivers are loaded for each application. Windows comes with a driver manager of its own, whereas other programs have the choice to use an open source ODBC driver manager like iODBC.
- Driver. The driver handles ODBC function calls and submits each SQL request to a data source. Results are returned to the application.
- Data source. The data source refers to the data being accessed and its associated database management systems. It could be any type of data, ranging from a simple file to a live data feed.
What Databases are ODBC Compliant?
Microsoft Access is compliant with ODBC, but there are many other databases that are as well. These include:
- Microsoft SQL Server
- Microsoft Visual FoxPro
- IBM DB2
ODBC is very common, so it’s likely that whatever database program you are using is ODBC compliant. If you’re unsure, check your database’s manual, contact your developer or give Arkware a call at 877-519-4537. We’re always happy to help!
The ACID model is one of the oldest database theory concepts. It includes four goals that every database management system must try to achieve: atomicity, consistency, isolation and durability. If the database does not meet these four goals, it is not considered reliable. Databases that do meet these four goals are considered to be reliable and ACID compliant.
Let’s learn more about each component in the ACID model and the strategies used to support it.
Defining the ACID Model
Here are more specifics on the characteristics of the ACID model.
- Atomicity. Transactions are made up of multiple statements. Atomicity ensures that each transaction is treated as a single unit that either succeeds or fails. So, if any of the statements within a transaction fail, the whole transaction fails and the database is left unchanged.
- Consistency. Consistency ensures that only valid data is included in the database. If a transaction violates the database’s consistency rules, it will be stopped and the database will be unchanged. This prevents illegal transactions from taking place.
- Isolation. Isolation means that multiple transactions happening at the same time will not impact each other. Isolation supports concurrency control and prevents transactions from interfering with each other.
- Durability. Once a transaction is complete, it will remain that way, even if there is a system failure. Durability is ensured through database backups, transaction logs and other security measures.
Putting the ACID Model into Practice
The ACID model can be executed using several different strategies. For atomicity and durability, database administrators may use write-ahead logging (WAL) that places all transaction data in a special log. If the database were to fail, the administrator could check the log and compare its content to what’s in the database.
Another strategy is shadow-paging, which is where a shadow page is created with content that can be modified. Updates are added to the shadow page instead of the actual database, and the database is only updated when the edit has been completed.
The two-phase commit protocol is another strategy, ideal for distributed database systems. When data is modified, it’s split into two requests: a commit-request phase and a commit phase. In the commit-request phase, all databases affected by the transaction must confirm that they have received the request and are able to perform it. When confirmation has been received, the commit phase completes the data.
The ACID model can be difficult to understand at first, but Arkware is here to do the heavy lifting for you! Give us a call and we’ll find the best database solution for your needs.
Any data organized in a specific format can be considered a database. There are endless applications for databases depending on what they are being used for and what type of information is being retrieved. If you’re new to the database world, we have a list of things to know before jumping in. The more time you take to understand how databases work, the more productive you can be with them.
SQL is at the Core of Relational Databases
Structured Query Language (SQL) is at the core of all relational databases, including Oracle, SQL Server and Microsoft Access. If you want to be proficient in your database, you’ll have to learn SQL. Fortunately, there are many ways to learn the language, such as with online classes, tutorials, books and videos. Learning SQL will provide you with a firm foundation for using relational databases.
Choose Your Primary Keys Wisely
Primary keys deserve attention. It’s important that your primary keys are unique. Anything that might share the same value for an attribute is not a good choice for a primary key. You’ll also need to think twice about using sensitive values in your databases (i.e., Social Security numbers and email addresses). Use your database management system to generate a unique identifier.
Know that Null is not Zero
Many people think that null is zero, but it’s not. Instead, it means “unknown.” Nulls cannot be compared to any values, so they are not included in reports. So, if you have 300 customers in your database and 30 have nulls in the Email Address column, the report will generate a result of 270.
Convert Spreadsheets to Databases
If you have data stored in Microsoft Excel, as many people do when they upgrade to Microsoft Access, save yourself time and convert your spreadsheets into databases. This can be done fairly easily by creating a database, importing the spreadsheet and choosing a primary key. You can learn more about converting your Excel spreadsheets to databases here.
Database Platforms are Different
There are many different databases out there, and no two are the same. Some large corporations and warehouses need enterprise-size databases with all the bells and whistles. However, most businesses can benefit from a simpler, more cost-effective program like Microsoft Access. It’s effective at keeping track of expenses, inventory, sales, etc. and supports multiple users. Plus, it has a familiar look and feel so there’s not much of a learning curve.
Are you considering upgrading from spreadsheets to a database? Contact Arkware for a free consultation and learn which database is right for your business.
Databases use keys to store, sort and compare relationships between records. There are three different types of keys: primary keys, candidate keys and foreign keys. When setting up a database table, the software will ask you to set up a primary key that will be responsible for identifying each record in the table. You might not think much about choosing a primary key, but this is actually a very big and important decision.
Why are Primary Keys a Big Deal?
Designing a new database comes with many choices, and selecting a primary key is one of them. In fact, it’s one of the most important. The purpose of a primary key is to implement a relationship between two tables. Without a primary key, relational databases wouldn’t exist.
Even though a primary key might sound a bit unusual, we use them in everyday life without realizing it. Student IDs are an example of a primary key. Students are uniquely identified by these numbers, but the numbers don’t mean anything outside the school.
Below are the advantages to using primary keys.
- Serves as a common link field between tables
- Speeds up queries, searches and sort requests
- Only valid records will be in your table
- No duplicates will be added
- MS Access shows data in order of the primary key
How to Choose a Primary Key
Primary keys should be 100% unique. You can generally turn to your database for the answers you’re looking for. In many cases, people will use the database management system to generate a unique identifier. This way, you’ll have a reliable system for referencing individuals or things in your database, but they won’t have meaning outside the system.
Good primary keys are usually short and include all numbers. They avoid using special characters or a combination of uppercase and lowercase letters. Some things that do NOT make good primary keys are zip codes, email addresses and Social Security numbers. Primary keys should not contain null values and must contain a unique value for each row of data.
Good database design starts by having a good primary key. You can learn more about finding the best primary key for your database in this article, or call Arkware. Our pros will be happy to walk through the steps with you.
If you are a property manager, you know how difficult it can be to keep track of your properties. From leasing to maintenance to income, there is a lot to maintain!
To help run their real estate businesses, property managers use databases. But, not all database programs are created equally. Some software is expensive and doesn’t let you customize the program. Other software comes with a learning curve, which means you’ll have to take time out to learn the database.
If your current system is not working for you, consider setting up a database through Microsoft Access. It’s cost-effective, streamlined and powerful. Plus, there are templates designed specifically for real estate professionals.
What are the Benefits of Using MS Access for Property Management?
Microsoft Access is a simple and straightforward database that doesn’t overcomplicate anything. We recommend it to property managers because of the templates available and the ability to track tenants, prices, maintenance and more. Let’s take a more detailed look at the benefits to using Access to manage your rental properties.
- Efficient leasing terms. When you’re renting out multiple properties, it’s hard to keep track of everyone’s leases. What if someone walks into your office and asks about future rentals? A database allows you to rent out your properties efficiently, serving more customers and reducing vacancies.
- Updated financials. Need a better handle on your financials? A database will help. Keep track of who has paid their rent and who still needs to. Issue extensions or late payments as needed and stay on top of your financials. The last thing you want is a deficit.
- Streamlined maintenance. A tenant called with a leaky faucet. Another said their AC wasn’t turning on. To keep track of maintenance requests, use a database. This way, you can send the proper tools, equipment and staff to the right properties to make repairs quickly and accurately. This also keeps tenants satisfied!
- Accessible contact info. Keep your tenants’ account information front and center. This makes it easy to contact them in a pinch and know who you are speaking to.
Using Microsoft Access to Manage Properties
Whether you lease out a few properties or hundreds, Microsoft Access can help. There are templates available for property managers, so find one that is customized to your needs. When you find a template you like, download it and start updating and organizing your information. Communication and collaboration will be improved, allowing you to run a more efficient property management business.
Your software should be working for you, not the other way around. If you are interested in learning more about MS Access and how it can work for your property management business, contact Arkware today.
Do you ever feel that people in your workplace are praised for working fast rather than smart? This is the wrong way to approach productivity. In fact, it can hurt productivity levels because of increased errors and a lower quality of work.
Being productive is more than working quickly. It also means putting your time to good use and making smart, strategic decisions. It may take your coworkers longer to appreciate this type of work, but stick with it and no one will be disappointed.
Here are ten effective ways to be more productive in the workplace.
1. Keep a list. Always write down the things you must accomplish for the day. You should have one or two big goals to focus on as well as smaller goals to help you meet them. As you complete a task, cross it off so that you feel proficient.
2. Close your emails. It’s tempting to keep your email open and read every message that comes your way. Unfortunately, this is disruptive and breaks your train of thought. Instead, reserve certain times during the day to read messages and write responses.
3. Find a good noise level. Some people work better in silence while others need background noise. Find your balance. You may have to work this out with your coworkers by wearing headphones. (Hopefully they will do the same for you!) Some say that listening to classical music is relaxing when working with databases.
4. Use automation. Many workplace tasks can be automated. Don’t be afraid to use this technology. For example, Microsoft Access allows you to automate and schedule tasks so that your databases run more smoothly.
5. Use productivity tools. There are a plenty of tools to help you stay focused during your work days. Some of our favorites include Evernote, HootSuite and Rescue Time. There are plenty more, so experiment with the various apps, widgets and tools that help manage time.
6. Be smart about meetings. If you are leading meetings, only invite the people that need to be there. Otherwise, the meeting might go off topic and disrupt those who could be spending their time completing other tasks.
7. Take regular breaks. Don’t skip your breaks or lunch. To perform well, your brain and body needs time to decompress. Plus, research shows that regular breaks increase motivation, enhance productivity and lead to fresh ideas.
8. Be flexible to interruptions. Interruptions are a nuisance, but they happen. Be realistic about them and when/where they can happen. If you find that you can’t stay focused, be proactive by wearing noise-cancelling headphones or using these opportunities to take a break.
9. Avoid multitasking. People pride themselves on multitasking, but research shows that it actually kills productivity levels. Instead, focus on one task at a time. If you are limited, allot a certain amount of time for each task and then move on.
10. Choose snacks and drinks wisely. The afternoon slump can be avoided by getting fresh air, drinking water or tea and eating a high-protein snack. Once you find what works for you, you can be productive all day long!