Database - ER Model and Business Rules
Exercise : ER Model and Business Rules - True or False
- ER Model and Business Rules - General Questions
- ER Model and Business Rules - True or False
1.
Packaged data models are meant to be exactly right straight out of the box.
2.
An action assertion is a statement that expresses some aspect of the static structure of the organization.
3.
A supertype can only have only one subtype.
4.
There is cardinality on an EER between the supertype and subtype.
5.
A subtype discriminator of the supertype is an attribute whose values determine the target subtype(s).
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