The Join Operation

question 37

Multiple Choice

The join operation:

• A)combines relational tables to provide the user with more information than is otherwise available.
• B)identifies the table from which the columns will be selected.
• C)creates a subset consisting of columns in a table.
• D)organizes elements into segments.
• E)creates a subset consisting of rows in a table.

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Definitions:

Real Rate of Return

The real rate of return is the annual percentage profit earned on an investment, adjusted for changes in the price level due to inflation or deflation.

Nominal Return

The return on an investment without adjusting for inflation, representing the raw earnings or loss.

Inflation

The rate at which the general level of prices for goods and services is rising, and subsequently, purchasing power is falling.

Indifference Curve

A graph showing different combinations of two goods that provide equal satisfaction or utility to a consumer.