Indexes Are Most Useful for Columns That Frequently Appear in WHERE

question 70

True/False

Indexes are most useful for columns that frequently appear in WHERE clauses of SQL commands, either to qualify the rows to select or for linking.

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Definitions:

Household Incomes

The total income earned by all members of a household, encompassing all financial sources.

Annual Income

The total amount of money earned or received in a year from employment, investments, or other sources before taxes and deductions.

Symmetrical

Symmetrical refers to an object or design that is evenly proportioned and balanced in size and shape on both sides.

Bell-shaped Distribution

A graphical representation of data where most values cluster around a central region, with fewer and fewer appearing as one moves away towards the extremes; commonly known as a normal distribution.