6 Questions
What is a primary key in an Entity Relationship Diagram (ERP)?
A unique identifier for each instance of an entity
How is cardinality defined in an Entity Relationship Diagram?
As the numerical relationship between two entities in a relationship
What do attributes represent in an Entity Relationship Diagram?
Characteristics that describe an entity
In an Entity Relationship Diagram, what does the term 'entity' refer to?
A real-world object or concept with a unique identity
What is the function of a visual tool like an Entity Relationship Diagram (ERP)?
Organizing and understanding data entities and their relationships
What does the term 'one-to-many (1:N)' signify in an Entity Relationship Diagram?
Each instance of one entity can relate to multiple instances of the other entity, but not vice versa
Test your knowledge on Entity Relationship Diagrams used in ERP systems. This visual tool helps in understanding and organizing data entities and their relationships within a database system.
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