Contents of the CUSTOMERS Table​

question 27

Multiple Choice

Contents of the CUSTOMERS table​

-​Based on the contents of the CUSTOMERS table,which of the following SQL statements will display the customer# of all customers who were referred by the same individual that referred customer# 1003?

• A) ​SELECT customer# FROM customers WHERE referred = (SELECT referred FROM customers WHERE customer# = 1003);
• B) ​SELECT customer# FROM customers WHERE referred EXISTS (SELECT referred FROM customers WHERE customer# = 1003);
• C) ​SELECT customer# FROM customers WHERE NVL(referred,0)= (SELECT NVL(referred,0)FROM customers WHERE customer# = 1003);
• D) ​SELECT customer# FROM customers WHERE NVL(referred,0)= (SELECT referred FROM customers WHERE customer# = 1003);

Assess the implications of government actions on market prices and equilibrium.

Understand the effect of cost changes on supply and market equilibrium.

Explain the role of external factors such as natural disasters on markets.

Analyze the effect of competition on market operations and services.

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Definitions:

Ethnography

A qualitative research method in anthropology for studying cultures through direct observation, participation, and other immersive methods to understand social practices and beliefs.

Sociologist

A social scientist who studies human societies, their interactions, and the processes that preserve and change them.

Sidewalk

A paved path for pedestrians on the side of a street or road.

Representativeness

The degree to which a particular studied group is similar to, or represents, any part of the larger society.