​Which of the Following Commands Will Set the MINRETAIL Column

question 109

Multiple Choice

​Which of the following commands will set the MINRETAIL column of the PROMOTION table as unused?

• A) ​ALTER TABLE promotion SET UNUSED (minretail);
• B) ​ALTER TABLE promotion SET minretail UNUSED;
• C) ​ALTER TABLE promotion SET UNUSED COLUMN minretail;
• D) ​both a and c

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Definitions:

Normal Populations

Populations that follow a normal distribution, characterized by its bell-shaped curve, where the mean, median, and mode are all equal.

Equal Variances

Assuming that two or more populations have the same variance, often an assumption in statistical tests comparing populations.

Sample Variances

Sample variances refer to the measurement of the variance within a sample from a population, providing an estimate of the population variance.

Population Variance

A measure that indicates the spread of a population's data points or how much the population's data values differ from the mean of the population.