Database Systems MCQs (Computer Science) From Textbook
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Database Systems Entrance Tests: Practice Test 18 (Chapter 15)
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In a relation, there would be no appearance of
The result does not change but it is legal to use Distinct with
The command to drop some relation from the database is
As an example to find the set of all courses taught in the Fall 2009 but not in Spring 2010, the operation to be used is
Functions that take a collection of values as input and return a single value, is known to be as
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