A Join in Which Rows That Do Not Have Matching

question 19

Multiple Choice

A join in which rows that do not have matching values in common columns are still included in the result table is called a(n) :

• A) natural join.
• B) equi-join.
• C) outer join.
• D) union join.

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Definitions:

Perfect Market System

A market structure characterized by an ideal scenario where there are many buyers and sellers, all having perfect information and no transaction costs, leading to efficient pricing.

Utility Function

A mathematical representation that describes the level of satisfaction or happiness that a consumer derives from consuming a set of goods and services.

Consumption

The act of using goods and services to satisfy needs or desires.

Price

The financial valuation expected, obligatory, or handed in exchange for something.