Which is a bottom-up approach to database design that design by examining the relationship between attributes:
Question
Which is a bottom-up approach to database design that design by examining the relationship between attributes:
Solution
The approach to database design that is considered bottom-up and is designed by examining the relationship between attributes is known as the "Entity-Relationship Model" or ER Model.
Here are the steps:
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Identify Entities: The first step in the ER model is to identify all the entities in the system. An entity is a real-world item or concept that exists on its own.
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Identify Relationships: The next step is to find the relationships between these entities. A relationship is how the entities are associated with each other.
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Identify Attributes: The next step is to identify the attributes of each entity. Attributes are the properties or characteristics of an entity.
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Draw ER Diagram: Once you have identified the entities, relationships, and attributes, the next step is to draw the ER Diagram. This diagram shows the system visually, including entities, relationships, and attributes.
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Convert ER Diagram to Tables: The final step is to convert the ER Diagram into tables. Each entity becomes a table, and the attributes become columns in the table. The relationships between entities are represented by foreign keys.
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