If a table contained 20 columns and you wanted to use only ten of the table's columns in a query you would use:
A) A vertical subset
B) A horizontal subset
C) A JOIN
D) An OPEN
E) A diagonal subset

Question

Quizplus · Accepted Answer

A vertical subset refers to selecting specific columns from a table, which is what is needed when you want to use only ten out of twenty columns in a query.

If a Table Contained 20 Columns and You Wanted to Use