A(n)_____ is an intentional "nothing" entry,which you might use for employees who do not want their email addresses stored in the database.
A) index
B) blank string
C) validation text
D) zero-length string

Question

Quizplus · Accepted Answer

A zero-length string is a character string that contains no characters. It is different from a null value in that it is an actual value that can be stored, whereas null represents the absence of a value. A zero-length string can be useful as an intentional "nothing" entry in situations where a value is required, but the user does not want to provide one (such as in the case of an email address that the user prefers not to store).

A(n)_____ Is an Intentional "Nothing" Entry,which You Might Use for Employees