Database - Data Modeling with ER Model
Exercise : Data Modeling with ER Model - True or False
- Data Modeling with ER Model - General Questions
- Data Modeling with ER Model - True or False
11.
An entity is something that can be identified in the user's work environment; something that the users want to track.
12.
Entity instances are associated by relationship classes.
13.
1:1, 1:N and N:M relationships are also known as HAS-A relationships.
14.
In a 1:N relationship, the parent is the entity on the one side of the relationship and the child is the entity on the N side of the relationship.
15.
A maximum cardinality is the maximum number of entity instances that can participate in a relationship instance.
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