The importance of data and database management systems cannot be overstated. data and information is pervasive and exists in every segment of our modern day society. collection and organization of this data is methodically stored in a database. The question might very well be, where are databases not used? You will find databases in e commerce, economics, education, hospitals, government, social services, banking, even social media sites for estimating, reporting, forecasting, accessing surveying and research. data on a larger scale is manipulated to provide useful information for projections, decision making, analysis, research, estimating profile data where housing and data mining, Google, Amazon, Facebook, Wikipedia, American Express, Chevron, Netflix, governments and pharmaceuticals as some of the big players using databases.

It is estimated that there are over 10 million active databases in the world. It is a daily multi billion dollar business that will continue to grow exponentially. section one provides a foundation for a comprehensive Practical Guide to database design.