Which of the Following SQL Statements Is a Correctly Stated

question 92

Multiple Choice

Which of the following SQL statements is a correctly stated correlated subquery?

• A)SELECT C1.CustName,C1.SalesRepNo
• FROM CUSTOMER C1
• WHERE C1.SalesRepNo IN
• (SELECT S1.SaleRepNo
• FROM SALESREP S1
• WHERE S1.RepName = 'Smith');
• B)SELECT C1.CustName,C1.SalesRepNo
• FROM CUSTOMER C1
• WHERE C1.SalesRepNo IN
• (SELECT S1.SaleRepNo
• FROM SALESREP S1
• WHERE S1.RepName = 'Smith')
• AND C1.SalesRepNo=S1.SalesRepNo);
• C)SELECT C1.CustName,C1.SalesRepNo
• FROM CUSTOMER C1
• WHERE C1.SalesRepNo IN
• (SELECT S1.SaleRepNo
• FROM SALESREP S1
• WHERE S1.RepName = 'Smith')
• AND C1.SalesRepNo<>S1.SalesRepNo);
• D)SELECT C1.CustName,C1.SalesRepNo
• FROM CUSTOMER C1
• WHERE C1.SalesRepNo IN
• (SELECT C2.SaleRepNo
• FROM CUSTOMER C2
• WHERE C1.SalesRepNo=C2.SalesRepNo);
• AND C1.OrderNo<>C2.OrderNo);
• E)None of the above is a correctly stated correlated subquery.

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Definitions:

Irregular Brain Wave Patterns

Variations in the rhythmic electrical activity of the brain that deviate from normal patterns and can indicate neurological issues or altered states of consciousness.

Reticular Activating System

A network of neurons located in the brainstem that regulates wakefulness and sleep-wake transitions.

Falling Asleep

The process by which a person transitions from wakefulness to sleep.

REM Sleep

A sleep stage characterized by rapid eye movement, dreaming, and increased brain activity.