Database Management Software Keeps The Internet Rolling

By George Purdy in Software on February 5th, 2008

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by George Purdy

The internet would not work in the way we know it today without the implementation of databases. These data sets reside on large storage mediums such as hard disks for computers to access. Moving these large sets of data is controlled by database management software. This type of software is usually categorized depending upon what type of data model they work with, be it relational, hierarchical, flat data, or object relational.

Useful database management software has been around for over 40 years. It was initially created when the creation of direct access devices made it possible. Prior to that, information was kept on magnetic tape or punch cards. This data had to be accessed and processed serially as needed. This is the flat data model, and it was the only one around at that time. The hard drive allowed new types of data storage and different methods of data management.

Comparing all of the databases actually in production, the vast majority use the relational model. What this means is that all of the data is stored in tables. For example, a table concerning those enrolled in a college might include a row per pupil containing personal data such as first and last name, student identification number and so forth. Subsequent rows would then have comparable information for each student, until the entire student body is included.

Every data management system has been specifically designed by an engineer to handle a certain task. In doing so, he must consider both the requirements of the system and the resources which are available. After designing the systems, he has the task of putting them into practice, testing them, and altering them as needed. He alone controls who will be able to access the data in order to read, create, update, or delete it.

When data management design is underway it is vital to consider strategies for data backup. Making copies of the data tables should be done automatically at scheduled intervals. In a transparent system, the key data is stored in many different locations, that may not even by physically in the same area. This plan makes complete data loss almost an impossibility.

One of the key concepts in data management is data security. The data manager has the power to selectively allow access to information either per user, or per group, and a group policy permits an easier access policy to large numbers of people simultaneously.

Database management software represented a vast improvement over previous technologies, including punch cards and magnetic tape. The software manages how data is stored and retrieved in databases. The most prevalent database structure today is the relational model, which stores all data in a series of tables. Supporting the software is an engineer who evaluates the structure of the database with a focus on storage needs and processing efficiency, as well as troubleshooting issues. It is also important to backup data, preferably through automatic replications which enable rapid recovery. Finally, the database manager should provide selective access either on an individual or group basis to ensure data security.

About the Author:

George Purdy is a well-known public speaker on database management software and has written several articles and essays on this subject matter. More info, resources and great products on database management software on database management software.