However, the in-service doctor of law belongs to the in-service postgraduate doctor's degree, which is different from the full-time doctor's degree. Studying for an in-service doctor of law is an in-service postgraduate entrance examination, not a full-time postgraduate entrance examination. On-the-job graduate students are on-the-job people who have already joined the work, while full-time graduate students are mainly college graduates. Although both belong to academic education, there is a difference between diploma and degree certificate.