title: One-to-many/Zero-to-many relationship?
body: <p>I'm having a little bit of trouble with the following relationship between two tables:</p>
  
  <p>Say, there's two tables, one being Student, the other being Module. 1 student can have 1 or many modules, however, 1 module can technically have 0 or more students. How would I implement this in a database? Thanks.</p>