Er Diagram Assignment

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At first look, an ER diagram looks very similar to the flowchart.

However, ER Diagram includes many specialized symbols, and its meanings make this model unique.

Entity-Relation model is based on the notion of real-world entities and the relationship between them.

ER modeling helps you to analyze data requirements systematically to produce a well-designed database.

An entity can be place, person, object, event or a concept, which stores data in the database.

Er Diagram Assignment

The characteristics of entities are must have an attribute, and a unique key.

It is anything in the enterprise that is to be represented in our database.

It may be a physical thing or simply a fact about the enterprise or an event that happens in the real world.

Entity relationship diagram displays the relationships of entity set stored in a database.

In other words, we can say that ER diagrams help you to explain the logical structure of databases.

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