What Will Be Returned When the Following SQL Statement Is

question 31

Multiple Choice

What will be returned when the following SQL statement is executed? Select driver_no,count(*) as num_deliveries
From deliveries
Group by driver_no;

• A) A listing of all drivers, sorted by driver number
• B) A listing of each driver as well as the number of deliveries that he or she has made
• C) A count of all of the deliveries made by all drivers
• D) An error message

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Definitions:

Tip-Of-The-Tongue

A cognitive phenomenon where a person cannot recall a specific word or fact despite feeling that retrieval is imminent.

Flashbulb Memory

Highly detailed and vivid memories of momentous events, which are often remembered with high confidence but not always with accurate detail.

Executive Control System

A cognitive system in the brain responsible for the regulation of thought and action through supervisory attentional control.

Dual-Coding

Dual-coding theory proposes that both verbal and visual information are used to represent information, with the two forms of coding supporting each other in memory retention.