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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:

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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:

  1. 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.

  2. Identify Relationships: The next step is to find the relationships between these entities. A relationship is how the entities are associated with each other.

  3. Identify Attributes: The next step is to identify the attributes of each entity. Attributes are the properties or characteristics of an entity.

  4. 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.

  5. 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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