Database Systems MCQs – Practice Test 14 (Chapter 15)
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Free Introduction to SQL MCQ App Download (Android & iOS): To apply the aggregate function not only to a single set of tuples, but to a group of sets of tuples using the; MCQ with answers: group by clause, grouped clause, merge clause, and avg clause. Practice View of Data Quiz Questions, download Apple Book (Free Chapter) to advance digital coursework.
MCQ 66: If a correlation name is defined both locally in a subquery and globally in a containing query:
MCQ 67: To apply the aggregate function not only to a single set of tuples, but to a group of sets of tuples; using the:
MCQ 68: For testing whether a subquery has duplicate tuples in its result, SQL includes a:
MCQ 69: The number of error(s) in the following query is/are:
select count (*)
from course:
MCQ 70: Including commands for specifying constraints that the data stored in the database must satisfy, is said to be the:
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