Which Query Will Return the Number of Rows Where the State

question 62

Multiple Choice

Which query will return the number of rows where the State field is 'AZ' from the table Customers and provide a total of the Payment field?

• A) SELECT COUNT(*) WHERE State='AZ' SUM(Payment) FROM Customers;
• B) SELECT FROM Customers COUNT(Payment) SUM(*) WHERE State='AZ';
• C) SELECT FROM Customers SUM(Payment) WHERE State='AZ' COUNT(*);
• D) SELECT COUNT(*), SUM(Payment) FROM Customers WHERE State='AZ';

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Definitions:

Resting Potential

The difference in electric charge across the neuronal membrane when the neuron is not actively sending a signal, crucial for the initiation of nerve impulses.

Excitatory Postsynaptic Potential

A temporary increase in postsynaptic membrane potential due to the flow of positively charged ions into the postsynaptic cell, making it more likely to fire an action potential.

Action Potential

A momentary change in electrical potential on the surface of a neuron or muscle cell, allowing the transmission of signals.

Repolarization

A phase in the cardiac cycle or neural activity where the cell membrane returns to its resting potential after depolarization.