title: What is a Degree Constraint?
body: <p>I am currently doing an introduction to database concepts and I have an assignment question that I just can't answer.</p>
  
  <p>The Question asks me to define/explain, in a few sentences, what "Degree Constraint" means. In relation to database languages.</p>
  
  <p>I can't really find any material that refers to SQL specifically and I can't decide if it means a constraint on the attributes of an entity, or perhaps a constraint of the number of relations between entities, or something else entirely.</p>
  
  <p>Help would be greatly appreciated. :)</p>