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RELATIONAL DATABASES

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RELATIONAL DATABASES

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RELATIONAL DATABASES

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Imagine that you work for a data service company that specializes in data storage, data processing, and data streamlining for public libraries. The current implementation is a file based system with all data stored in a single spreadsheet. As the company expands the business to serve more libraries, it becomes obvious that the current model does not meet the ever increasing demand. You have been assigned the task to design a new relational database to replace the current file based storage. It will be a single centralized database to store information needs for all libraries. Some key information to be stored includes data about customers, libraries, catalog, physical items, and check in/out transactions. Additional general business background information is listed below: a. Each library system operates independently. 

 
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relational databases

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Question

I am having trouble with functional dependencies in relational databases. How do you identify them? How do you

know if they are true? How do you contradict the determinant? How do you use rows to contradict the functional dependency?

 
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