UGC-NET | UGC NET CS 2015 Jun – II | Question 18ReadDiscussCoursesPracticeImprove Article ImproveSave Article SaveLike Article LikeDrop Table cannot be used to drop a Table referenced by __________ constraint.(a)Primary key(b)Sub key(c)Super key(d)Foreign key(A) (a)(B) (a), (b) and (c)(C) (d)(D) (a) and (d)Answer: (C)Explanation: Drop Table cannot be used to drop a Table referenced by foreign key constraint.For more information on keys Refer:DBMS | Keys in Relational Model (Candidate, Super, Primary, Alternate and Foreign) and for information on sql operation Refer:SQL | ALTER (ADD, DROP, MODIFY)Option (C) is correctQuiz of this QuestionLast Updated : 14 May, 2018Like Article Save Article Please Login to comment...