To Add a NOT NULL Column to a Table,we ________

question 41

Multiple Choice

To add a NOT NULL column to a table,we ________.

• A)use the REVISE TABLE command
• B)use the ALTER TABLE command
• C)use the MODIFY TABLE command
• D)create a new NULL column,insert data values into every row,and change the NULL constraint to NOT NULL
• E)None of the above is the correct way to add a NOT NULL column to a table.

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Definitions:

Operant Conditioning

A conditioning technique that aims to modify behavior magnitude by employing reinforcement strategies or punishment tactics.

Extinction

In psychology, the gradual weakening and disappearance of a conditioned response when the conditioned stimulus is no longer paired with the unconditioned stimulus.

Variable-Ratio Schedule

A reinforcement schedule where a response is reinforced after an unpredictable number of responses, making it very resistant to extinction.

Fixed-Interval Schedule

A type of reinforcement schedule in operant conditioning where rewards are delivered at fixed time intervals, provided the correct response is made.