To Create the Primary Key Clause for the OrderLine Table

question 44

Multiple Choice

To create the primary key clause for the OrderLine table on the OrderNum and ItemNum fields, which statement should you use?

• A) PRIMARY KEY (OrderLine, OrderNum, ItemNum)
• B) KEY (OrderNum, ItemNum)
• C) PRIMARY KEY (OrderNum, ItemNum)
• D) PRIMARY (OrderNum, ItemNum)

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Definitions:

Lewis Structure

A graphical representation illustrating how atoms in a molecule are bonded together and depicting any unpaired electrons present within the molecule.

Boron Trifluoride

A chemical compound with the formula BF3, known for its role as a strong Lewis acid in organic and inorganic chemical reactions.

Octet

A rule in chemistry stating that atoms tend to combine in such a way that they each have eight electrons in their valence shells, giving them the same electronic configuration as a noble gas.