CMIS1002_RelationalDatabase

CMIS1002_RelationalDatabase - Relational Database Tour...

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© 2008, Laureate Higher Education Group, Inc. - 1 - Relational Database Tour Video Many organizations view data as their most important asset. What do you think would happen if a company kept all of its data on sticky notes or stuffed into a desk drawer? How long would it take to find a particular fact—say, the phone number of a customer? Suppose they wanted a list of all the orders customer ever made? How could anyone know whether or not the data was complete, correct, or up to date? Because data is so important, businesses spend a great deal of time and effort trying to organize their collection. The first step is to find common themes to group the data elements. These themes usually represent types of people, places, things, or events that concern the organization, for example, employees, departments, and building locations. We’re not trying to list all of the employees here, just what information the company needs to know about each employee. Now it’s time to look at the big picture. Maybe some of the data elements duplicate each
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This note was uploaded on 08/08/2010 for the course COMPUTER S 6.657 taught by Professor Janelee during the Spring '08 term at Walden University.

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CMIS1002_RelationalDatabase - Relational Database Tour...

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