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:

Sample Mean

The average value of the observations in a sample, used as an estimate of the population mean, calculated by summing all observations and dividing by the number of observations.

Normal Curve

A symmetric, bell-shaped curve that represents the distribution of many types of data; most scores are near the average, and frequencies decrease as you move away from the center.

Binomial Random Variable

A type of random variable that arises from a binomial experiment, representing the number of successes in a fixed number of independent Bernoulli trials.

Sampling Distribution

Distribution probabilities of a given statistic, ascertained through random sampling.