There are two main users of relational database management systems. The first is end users who buy a complete database package for their specific need. The second are developers who will use the system as part of another application, often web based.

Relational databases can be very simple or very complex. Some run on simple PC platforms, others require sophisticated information technology systems. All of them make it possible to organize any type of information by defining data into three main types: character, numeric or date.

Today's database needs are further defined into three main types: small footprint databases, speed and scalability databases and broad data support databases.

Small Footprint Relational Databases

Small footprint relational databases are designed for handheld and embedded devices.They work with the architecture of mobile and other embedded devices and have limited storage space and restricted memory. These small footprint relational databases may also synchronize data with central databases. For example, a wireless handheld device may need to communicate with a corporate database at headquarters.

Fast and Scalable Relational Database

Scalability means predictable performance as the number of users or the size of the database increases. Server centric applications such as those used by large retail organizations require relational databases that provide superior speed and scalability.

Broad Support for Many Data Types

The third type of relational database provides broad support for many types of data. These relational databases allow searches of data with complex interrelations. As you might expect, they are server-centric databases.

References

• SQLETC, "Introduction to Relational Databases"
• Relational Databases 101: Looking at the Whole Picture

About the Author

Victoria Van Harlingen has been writing since she was editor of her high school newspaper. She has spent 20 years producing marketing and public relations work for various businesses and non-profit organizations. Her articles have appeared in several local print publications. Online credits include eHow and Answerbag.

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