Combining the contents of two or more columns is known as ____.
A) projection
B) concatenation
C) selection
D) suppression

Question

Quizplus · Accepted Answer

Concatenation is the process of combining two or more columns of a table into a single column. This is often done to simplify data management or to create a new column that combines information from multiple sources. Projection, selection, and suppression are all other operations that can be performed on tables, but they do not involve combining columns in the same way that concatenation does.

Combining the Contents of Two or More Columns Is Known