Explain the key concepts of relational databases

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(a) Explain the four rules that must be enforced in order for a relational database to become normalised.

(b) Briefly explain the following key concepts of relational databases: I. Primary key II. Foreign key III. Entity IV. Record V. Attribute

(c) Demonstrate with an example how relations are established among tables in a relational database. (d)Provide the benefits of using relational databases over multiple-files approach for storing data.

Reference no: EM132945330

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