What Has Only a Single Value of Each Attribute of an Entity

question 14

Multiple Choice

What has only a single value of each attribute of an entity?

• A)Single-valued attribute
• B)Multi-valued attribute
• C)Null-valued attribute
• D)All of the above

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Definitions:

Erectile Problems

Issues related to achieving or maintaining an erection sufficient for satisfactory sexual performance.

Impotence

A term often used to describe erectile dysfunction, which is the inability to achieve or maintain an erection suitable for sexual intercourse.

Erectile Disorder

A dysfunction characterized by difficulties with obtaining an erection during sexual activity, maintaining an erection until the completion of sexual activity, and/or a marked decrease in erectile rigidity in about 75 to 100 percent of sexual occasions over a period of at least six months, leading to distress.