Which Statement About the View Created from the Following SQL

question 11

Multiple Choice

Which statement about the view created from the following SQL command is correct,assuming ISBN from the BOOKS table is the primary key used by the view?
CREATE OR REPLACE VIEW prices
AS SELECT isbn,title,cost,retail,retail-cost profit,name
FROM books NATURAL JOIN publisher;

• A) ​DML operations can only be performed on the columns belonging to the PUBLISHER table.
• B) No DML operations are allowed.​
• C) ​DML operations are allowed on both the BOOKS and PUBLISHER tables.
• D) ​DML operations can only be performed on the columns belonging to the BOOKS table.

Understand the role and responsibilities of the National Labor Relations Board (NLRB) in conducting union elections and enforcing the NLRA's unfair labor practice provisions.

Recognize the protection of workers' rights under U.S. labor laws, including the right to unionize and engage in collective activities.

Identify the legal protections for employees engaging in union activities and the prohibition of employer interference or retaliation.

Understand the concept of exclusive representation by unions and its purpose in U.S. labor law.

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Definitions:

Confidence

In statistics, the degree of certainty or probability that a parameter lies within a specified range of values.

Randomly Sample

A method of selecting a subset of individuals from a population in such a way that each individual has an equal chance of being chosen.

Clear Majority

A situation or result in which a significantly larger portion of a group supports a particular outcome or opinion over all others combined.

Hypothesis Test

A statistical method that uses sample data to evaluate a hypothesis about the properties of a population.