Assume You Are Using the UNION Operator to Combine the Results

question 51

Multiple Choice

Assume you are using the UNION operator to combine the results from two tables with identical structure,CUSTOMER and CUSTOMER_2.The CUSTOMER table contains 10 rows,while the CUSTOMER_2 table contains 7 rows.Customers Dunne and Olowski are included in the CUSTOMER table as well as in the CUSTOMER_2 table.How many records are returned when using the UNION operator?

• A) 7
• B) 10
• C) 15
• D) 17

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Definitions:

Annual Output

The total value of goods and services produced by an economy or a firm in one year.

Rational Expectations

The economic theory suggesting individuals make decisions based on their logical expectations for the future, effectively using all available information to predict future events accurately.

Long-Run Phillips Curve

A concept suggesting that in the long term, there is no trade-off between inflation and unemployment, implying that inflation does not affect the natural rate of unemployment.

Short-Run Phillips Curve

The Short-Run Phillips Curve depicts an inverse relationship between unemployment and inflation in the short term, indicating that lower unemployment can come with higher inflation.