Converting a One-To-One Unary Relationship into a Relational Database from an E-R

question 50

Multiple Choice

Converting a one-to-one unary relationship into a relational database from an E-R diagram ____.

• A) can be done by adding another copy of the unique identifier of the single entity's table into the same table with a different attribute name
• B) can be done by splitting the attributes of the single entity into two tables, each with its own copy of the unique identifier
• C) requires the creation of an additional table beyond the one that represents the single entity in the relationship
• D) a & b above
• E) a & c above

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Definitions:

Acetyl-CoA

A molecule involved in metabolism that conveys the carbon atoms within the acetyl group to the citric acid cycle to be oxidized for energy production.

Lipogenesis

The metabolic process of synthesizing fatty acids from acetyl-CoA, primarily occurring in the liver and adipose tissue.

Absorptive State

The metabolic phase following a meal when nutrients from the food are absorbed from the intestinal tract into the bloodstream.

Triglycerides

A type of fat (lipid) found in your blood, used by the body for energy, and an indicator of metabolic health.