Find the student ID and personal name of the student with at least two enrollments.
SELECT T1.student_id ,  T2.personal_name FROM Student_Course_Enrolment AS T1 JOIN Students AS T2 ON T1.student_id  =  T2.student_id GROUP BY T1.student_id HAVING COUNT(*)  >=  2
SELECT T1.student_id ,  T2.personal_name FROM Student_Course_Enrolment AS T1 JOIN Students AS T2 ON T1.student_id  =  T2.student_id GROUP BY T1.student_id HAVING COUNT(*)  >=  2
[{'student_id': 8, 'personal_name': 'Marshall'}, {'student_id': 10, 'personal_name': 'Alicia'}, {'student_id': 14, 'personal_name': 'Cary'}, {'student_id': 15, 'personal_name': 'Eliza'}]