Database Systems MCQs – Practice Test 8 (Chapter 15)
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Learn Database Systems Notes App (Free) with MCQ: "Command to delete the relation is"; with answers: delete about *example*, delete from *example*, abort from *example*, and abort about *example*. Practice View of Data Quiz Questions, download Kobo e-Book (Free Chapter) for database online resources.
MCQ 36: The command to delete the relation is:
MCQ 37: We define an SQL relation by using the command:
MCQ 38: The number of error(s) in the following query is/are:
select avg (salary)
from instructor;
where dept name=Comp. Sci.
:
MCQ 39: The aggregate operations, when an empty collection is applied on the function, return a:
MCQ 40: The result relation has all attributes from all the relations in the:
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