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3. E R Model2. ER Model EntityRelationship Model Graphical Representation of Database Equivalent to Flowchart in Programming It makes easy to understand Database Prior Step to implement Actual Database
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How to fill out 3 e r model

01
Identify the entities: Start by identifying the entities in your system. These can be objects, people, or concepts that need to be represented in the model.
02
Determine the attributes: For each entity, determine the attributes or properties that describe them. These can be characteristics or traits that the entity possesses.
03
Define the relationships: Identify the relationships between the entities. These relationships can be one-to-one, one-to-many, or many-to-many.
04
Assign primary keys: Determine the primary key for each entity. The primary key uniquely identifies each instance of an entity.
05
Draw the entity-relationship diagram: Finally, draw the entities, attributes, and relationships using the appropriate notation. Connect them with lines to represent the relationships.

Who needs 3 e r model?

01
The 3 E-R model is useful for anyone involved in database design and development.
02
It is commonly used by database administrators, software engineers, and data analysts.
03
The model helps in designing the structure of a database and organizing the relationships between entities.
04
It also aids in understanding the flow of data and can be used as a visual representation for stakeholders and clients.
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