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logical data model

MazelTov27 answered on September 29, 2022 Popularity 9/10 Helpfulness 3/10

answer logical data model

logical data model

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A logical data model describes the data in as much detail as possible, 
without regard to how they will be physical implemented in the database. 
Features of a logical data model include:

    - Includes all entities and relationships among them.
    - All attributes for each entity are specified.
    - The primary key for each entity is specified.
    - Foreign keys (keys identifying the relationship between different entities) are specified.
    - Normalization occurs at this level. 

The steps for designing the logical data model are as follows:

    - Specify primary keys for all entities.
    - Find the relationships between different entities.
    - Find all attributes for each entity.
    - Resolve many-to-many relationships.
    - Normalization.

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Contributed on Sep 29 2022

MazelTov27

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