To Create the Primary Key Clause for the Customer Table

question 22

Multiple Choice

To create the primary key clause for the Customer table on the CustomerNum field, which statement should you use?

• A) PRIMARY KEY (CustomerNum)
• B) PRIMARY KEY (Customer, CustomerNum)
• C) KEY (CustomerNum)
• D) PRIMARY (CustomerNum)

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Definitions:

Excitatory Response

A reaction in neural tissue that increases the likelihood of a neuron firing an action potential, typically facilitated by neurotransmitters.

Voltage Shift

A change in the electrical potential difference between two points, which can affect the flow of electricity in a circuit.

Excitatory Effect

A response in which a neurotransmitter increases the likelihood that a neuron will fire an action potential.

Receiving Neuron

A neuron that receives signals from other neurons through its dendrites.