Adding Rows to a View Is Most Troublesome for the View

question 20

Multiple Choice

Adding rows to a view is most troublesome for the view user when that view contains _____.

• A) statistics calculated from base tables
• B) a base table's primary key
• C) more than five columns
• D) data from more than one base table

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Definitions:

Orbital

A mathematical function that describes the wave-like behavior of either one electron or a pair of electrons in an atom.

Pyrrolidine

An organic compound with the molecular formula C4H9N, consisting of a five-membered ring containing four carbon atoms and one nitrogen atom.

Lone Pair

A pair of valence electrons in an atom that is not shared with another atom and does not participate in bonding.

Physostigmine

An alkaloid used as a drug to treat glaucoma and anticholinergic poisoning, acting as a reversible cholinesterase inhibitor.