Question
As a result of an increase in consumer incomes, the
demand for XYZ good has decreased. Based on this information, what can we definitely say about what type of good XYZ is?Solution
Inferior goods are goods whose demand is reduced with increasing consumer income. Inferior goods are very low-priced goods and are of much lower quality related to other goods. Income growth allows the consumer to change their choices and buy substitutes of superior quality.
Which SQL command is used to remove a table completely?
A materialized view differs from a normal view because it:
To rename a column in a SELECT query result, you use:
Which SQL constraint ensures a column cannot have NULL values?
In PL/SQL, what type of parameter allows a procedure to both receive a value from the calling environment and return a modified value back to it?
Which of the following statements about SQL `INDEXES` is generally TRUE?
Which SQL keyword is used to eliminate duplicate rows in a query result?
What is the output of this SQL snippet if the price column contains NULL values?
SELECT SUM(price) FROM products;
Which SQL operator is used to search for a pattern in a column?
Which SQL clause is used to group rows?
