What Is the Difference Between Dropping a Column with the DROP

question 22

Essay

What is the difference between dropping a column with the DROP COLUMN clause and setting a column as unused with the SET UNUSED clause?​

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Definitions:

Population Proportion

The fraction or percentage of members in a population that exhibit a particular trait or characteristic.

Confidence Level

The percentage of times that a confidence interval, if repeated from multiple samples, would encompass the true population parameter.

Population Parameter

A numerical value that represents a characteristic of an entire population, such as mean or variance.

Sample Size

The number of subjects or units selected from a population to be studied in a statistical sample.