Database Systems MCQs (Computer Science) From Textbook
Introduction to SQL MCQ App Free Download | Database Systems e-Book PDF
Database Systems Entrance Tests: Practice Test 34 (Chapter 15)
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The correlation name in the SQL standard, is commonly referred to as a
To insert data into a relation, we specify a tuple to be
SQL includes a feature for testing whether a subquery has any
SQL allows us to use the comparison operators to compare
The output of the query:
select avg (salary)
from instructor
where dept name='Comp. Sci.';
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