Exercise #22

 What is meant by entity relationship diagram:

An Entity Relationship (ER) Diagram is a form of flowchart that shows how "entities" within a system, such as people, things, or concepts, interact with one another.



What is ER model explain with example:

Real-world things are represented using an ER model. An entity is a creature or object in the real world that can be distinguished from its surroundings. Each employee in a company, for example, is a separate entity.




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Exercise #1

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