having this piece of schema
有这个架构
Doctor(licence_no, doctor_name, specialty)
Patient(pat_id, pat_name, pat_address, pat_phone, date_of_birth)
Visit(licence_no, pat_id, date, type, diagnosis, charge)
Doctor(lihaving this piece of schema
有这个架构
Doctor(licence_no, doctor_name, specialty)
Patient(pat_id, pat_name, pat_address, pat_phone, date_of_birth)
Visit(licence_no, pat_id, date, type, diagnosis, charge)
Doctor(li