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original. It includes an entity relationship diagram, SQL, and Oracle database tables along
with detailed documentation.
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How to fill out what is entity relationship
How to fill out what is entity relationship
01
To fill out and understand what is entity relationship, follow these points:
02
Start by identifying the entities involved: Identify the main objects or entities in the system.
03
Determine the attributes of each entity: Identify the characteristics or properties of each entity and define them as attributes.
04
Identify the relationships between entities: Determine how the entities are related to each other and define the relationships.
05
Define the cardinality of relationships: Determine the number of instances of one entity that can be associated with another entity. For example, one-to-one, one-to-many, many-to-one, or many-to-many.
06
Specify the constraints: Define any constraints or rules that apply to the relationships, such as mandatory participation, optional participation, or unique values.
07
Create a visual representation: Draw an entity-relationship diagram (ERD) to visually depict the entities, attributes, relationships, and constraints.
08
Review and revise: Review the ERD for accuracy and completeness, and make any necessary revisions or refinements.
09
Use the ERD: The completed entity-relationship model can be used as a blueprint for designing a database or understanding the structure of an existing database.
Who needs what is entity relationship?
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Anyone involved in database design or development needs to understand what is entity relationship. This includes:
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- Database administrators
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- Database developers
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- Data analysts
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- Systems analysts
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- Software engineers
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- Business analysts
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- Project managers
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Understanding entity relationships is essential for designing efficient and well-structured databases and ensuring data integrity.
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