void addBook ( in string ssn, in string book, in string semester ) raises (SVU::DatabaseError);
TabularResults::ResultSet getBooksByCourse ( in string course ) raises (SVU::DatabaseError);
TabularResults::ResultSet getCoursesByMajor ( in string major ) raises (SVU::DatabaseError);
TabularResults::ResultSet getMajors ( ) raises (SVU::DatabaseError);
TabularResults::ResultSet getSemesters ( ) raises (SVU::DatabaseError);