Database Systems MCQs – Practice Test 18 (Chapter 15)
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MCQ 86: In a relation, there would be no appearance of:
MCQ 87: The result does not change but it is legal to use Distinct with:
MCQ 88: The command to drop some relation from the database is:
MCQ 89: 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:
MCQ 90: Functions that take a collection of values as input and return a single value, is known to be as:
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