Computer Science · Database Management System
Which of the following SQL queries deletes all tuples in the 'teacher' relation for those teachers associated with a department located in the building named 'CSE' in the 'department' relation?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1DELETE FROM teacher WHERE dept_name IN 'CSE';
- 2DELETE FROM department WHERE building='CSE';
- 3DELETE FROM teacher WHERE dept_name IN (SELECT dept_name FROM department WHERE building = 'CSE');✓
- 4DELETE FROM teacher WHERE building = 'CSE';
Correct answer
DELETE FROM teacher WHERE dept_name IN (SELECT dept_name FROM department WHERE building = 'CSE');
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