A Indicates An Absent Value That May Exist But Be Unknown Or #272
A _____ indicates an absent value that may exist but be unknown or that may not exist at all.
This multiple choice question (MCQ) is related to the book/course
gs gs117 Database Management System.
It can also be found in
gs gs117 SQL: Queries, Constraints and Triggers - Null Values Operations - Quiz No.1.
A _____ indicates an absent value that may exist but be unknown or that may not exist at all.
Empty tuple
New value
Null value
Old value
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