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Databases and Big Data Technologies
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Which of the attributes is a suitable key for this relation? Person(ID,Name,Address,BirthDate)
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Which of the attributes is a suitable key for this relation? Teacher(Name,Email,BirthDate,Faculty)
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Which of the attributes is a suitable key for this relation? Subject(SubjectName,NeptunCode,HoursPerWeek,Semester)
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What is the correct decomposition for this relation? Course(CourseName,NeptunCode,HoursPerWeek,TeacherName,TeacherEmail)
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Which of these attributes is a primary key? Student(StudentName,NeptunCode,Email,BirthDate,StudyProgrammeName) StudyProgrammes(StudyProgrammeName,FacultyShortName,NumberOfSemesters) Faculty(FacultyFullName,FacultyShortName,Address,Dean)
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Which of these attributes is a foreign key?Subject(SubjectName,NeptunCode,HoursPerWeek,Semester,FacultyShortName) Faculty(FacultyFullName,FacultyShortName,Address,Dean)
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Which normal form does this relation violate? Student(StudentName,NeptunCode,Email,BirthDate)
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Which normal form does this relation violate? Course(CourseName,NeptunCode,HoursPerWeek,TeacherName,TeacherEmail)
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Which normal form definition does this requirement belong to: secondary attributes are dependent on part of the relation key.
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What is a functional dependency?
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