Exam 4: Data Modeling and the Entity Relationship Model

How is minimum cardinality expressed in crow's foot E-R diagrams?

________ constrain data values and the processing of the database.

Recursive relationships occur when an entity has a relationship with ________.

Microsoft Access uses ________ form and report editors.

Microsoft Access uses banded form and report editors.

One type of strong entity is the ID-dependent entity.

Microsoft Access database files can be easily copied to create multiple copies of a database.

When an entity class has a relationship with itself,it is called a(n)________ relationship.

Which of the following is not a stage in the development of a database system?

Microsoft Access wizards allow easy mock-ups of forms and reports for prototyping.

Explain maximum cardinality.

In crow's foot style E-R diagrams,a crow's foot mark on the relationship line near an entity indicates ________.

A dashed line between entities indicates ________.

Explain minimum cardinality.

In a traditional E-R diagram,the relationship is symbolized by a diagram.

In crow's foot style E-R diagrams,a hash mark across the relationship line near an entity indicates ________.

Which of the following is true about identifiers of entities?

Identifiers of an entity that are composed of two or more attributes are called ________ identifiers.

Which of the following activities is not performed during the implementation phase of developing a database system?

Microsoft Access can be used to build a prototype database,which allows users ________.