Which of the Following Is a Valid SQL Statement?​

question 34

Multiple Choice

Which of the following is a valid SQL statement?​

• A) ​SELECT SUM(quantity*retail)"Total Sales"
• FROM orders JOIN orderitems ON orders.order# = orderitems.order#
• JOIN books ON orderitems ON orderitems.ISBN = books.ISBN
• WHERE orderdate = '02-APR-03';
• B) ​SELECT SUM(quantity*retail)"Total Sales"
• FROM orders JOIN orderitems ON orders.order# = orderitems.order#
• JOIN books ON orderitems ON orderitems.ISBN = books.ISBN
• HAVING orderdate = '02-APR-03';
• C) ​SELECT customer#,SUM(quantity*retail)"Total Sales"
• FROM orders JOIN orderitems ON orders.order# = orderitems.order#
• JOIN books ON orderitems ON orderitems.ISBN = books.ISBN
• HAVING orderdate = '02-APR-03';
• D) SELECT customer#,SUM(quantity*retail)"Total Sales"
• FROM orders JOIN orderitems ON orders.order# = orderitems.order#
• JOIN books ON orderitems ON orderitems.ISBN = books.ISBN
• HAVING orderdate = '02-APR-03'
• GROUP BY customer#;​

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Definitions:

Market Structure

The organization and characteristics of a market, including the number of firms, level of competition, and the distribution of market power.

Efficient Competition

A market scenario where firms can produce the goods and services that consumers demand at the lowest possible cost, maximizing societal welfare.

Price-Taker

An economic actor who accepts the market price as given and has no influence over it due to its small size in the market.

Market Demand

The aggregate amount of a product or service that every consumer in a market is prepared and capable of buying at different price levels.