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

Question

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

Quizplus · Accepted Answer

Concatenation is the process of combining the contents of two or more columns into a single column. Selection involves choosing or filtering specific data based on certain criteria, suppression involves hiding or removing specific data, and projection involves selecting specific columns from a table.

Combining the Contents of Two or More Columns Is Known