Podcast
Questions and Answers
Which phase involves the mapping of the conceptual data model to a logical data model?
Which phase involves the mapping of the conceptual data model to a logical data model?
What is used to represent the structural constraints on a relationship in the Entity-Relationship (ER) Model?
What is used to represent the structural constraints on a relationship in the Entity-Relationship (ER) Model?
In which design phase do we interview prospective database users to understand and document their data requirements?
In which design phase do we interview prospective database users to understand and document their data requirements?
Which type of constraint specifies whether the existence of an entity depends on its being related to another entity?
Which type of constraint specifies whether the existence of an entity depends on its being related to another entity?
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In which phase of design do we focus on the physical implementation of the database?
In which phase of design do we focus on the physical implementation of the database?
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Study Notes
Database Design Phases
- The logical design phase involves the mapping of the conceptual data model to a logical data model.
- In the requirements gathering phase, we interview prospective database users to understand and document their data requirements.
Entity-Relationship (ER) Model
- Structural constraints on a relationship in the ER Model are represented using cardinality constraints.
- A existential constraint specifies whether the existence of an entity depends on its being related to another entity.
Physical Design Phase
- The physical design phase focuses on the physical implementation of the database.
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Description
Test your knowledge of data modeling using the Entity-Relationship (ER) Model with this quiz on conceptual modeling and database design. Explore design phases, entity types, entity sets, attributes, keys, null values, and more. Ideal for students and professionals in the field of database design and management.
