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Removing Transitive Dependency Student Subject and Score. Student Table student_id name reg_no branch address 10 Akon 07-WY CSE Kerala 11 Akon 08-WY IT Gujarat 12 Bkon 09-WY IT Rajasthan Subject Table subject_id subject_name teacher 1 2 Java C++ Php Java Teacher C++ Teacher Php Teacher 3 Score Table score_id student_id subject_id marks 1 10 1 70 2 2 3 wN 10 11 75 80 1 is the exam name ariu the Score table. score_id student_id subject_id marks exam_name total_n Removing Transitive Dependency Again the solution is very simple. Take out the columns exam_name and total_marks from Score table and put them in an Exam table and use the exam_id wherever required. Score Table: In 3rd Normal Form score_id student_id subject_id marks exam_id The new Exam table exam_id exam_name total_marks 1 200 Workshop Mains 2 70 3 Practicals 30 The tables are now in Normal Form O Third O Fourth O First O Second