Database Systems MCQs – Practice Test 7 (Chapter 15)
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Free Introduction to SQL Quiz App Download (Android & iOS): Query for finding the department names of all instructors, is; MCQ with answers: define dept_name from instructor;, select dept_name about instructor;, select dept_name from instructor;, and define dept_name about instructor. Learn View of Data Quiz Questions, download Google Book (Free Chapter) for DBMS digital coursework.
MCQ 31: The result of Boolean expression 'true and unknown' is:
MCQ 32: The query for finding the department names of all instructors, is:
MCQ 33: If 'A' is null for a particular tuple, then the expression result must also be null for that:
MCQ 34: SQL prevents any update to the database that violates an:
MCQ 35: Since duplicate retention is the default, we shall not use:
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