Asked by Brandon Trejo on May 02, 2024
Verified
If you add Is Null as the criterion for the Advisor field in the Students table,what are the results?
A) Advisors without students
B) Students with advisors
C) Students with more than one advisor
D) Students without advisors
Is Null
In databases, a condition that represents the absence of any data value in a field.
Students table
In database systems, a specific table designed to hold records pertaining to students, including information like names, IDs, and enrollment details.
- Learn the techniques for querying null values and apprehend the repercussions of using the "Is Null" criterion.
Verified Answer
JJ
Jeanette JohnsonMay 04, 2024
Final Answer :
D
Explanation :
Adding Is Null as the criterion for the Advisor field in the Students table will filter and show only those records where there is no value in the Advisor field. This means that the result will show students who do not have an advisor assigned to them.
Learning Objectives
- Learn the techniques for querying null values and apprehend the repercussions of using the "Is Null" criterion.