title: What is a Domain in Oracle (related to Constraint)?
body: <p>What is a Domain in Oracle? I didn't really find something useful on the internet. </p>
  
  <p>I have a question which i have to answer: "What is the difference between Constraints and Domains in Oracle?"</p>
  
  <p>I understand Constraints, but i have no idea about "Domains" in Oracle. </p>
  
  <p>Thanks for help!</p>