A Referential Integrity Constraint Policy That Insures That Foreign Key

question 98

Multiple Choice

A referential integrity constraint policy that insures that foreign key values in a table are correctly maintained when there is a change to the primary key value in the parent table is called ________.

• A)incremental updates
• B)incremental deletes
• C)controlled key adjustments
• D)cascading updates
• E)cascading deletes

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Definitions:

Standard Deviation

An indicator that quantifies the extent of spread or diversity among values in a dataset, showing how far the values diverge from the average.

Retries

The number of attempts to perform an action after initial failures.

Variances

A measure of the dispersion of a set of data points around their mean; essentially, it quantifies how much the data points differ from the mean.

Bivariate Distributions

Probability distributions that involve two random variables, analyzing the correlation and dependencies between them.