An unknown value,or a value that does not apply to a given row of a table,is indicated by:
A) The value 0
B) The string of characters "null"
C) The null value
D) The string of characters "NA"

Question

Quizplus · Accepted Answer

The null value is typically used to indicate a missing or unknown value in a table. While other choices may be used in certain contexts, null is a commonly recognized and standardized way of representing missing data.

An Unknown Value,or a Value That Does Not Apply to a Given