text: SELECT
      CASE
          WHEN Grades.Grade < 8
          THEN NULL
          WHEN Grades.Grade >= 8
          THEN Students.Name
      END,
      Grades.Grade,
      Students.Marks
      FROM Students
      INNER JOIN Grades
      ON Students.Marks
      BETWEEN Grades.Min_Mark AND Grades.Max_Mark
      ORDER BY Grades.Grade DESC, Students.Name ASC, Students.Marks ASC
  