title: Should the Supplier, Client and User tables be combined
body: <p>I currently have 3 table and I am unsure if they should be merged or not. They do have similar fields, and a supplier would need to login at some point or another, and even clients</p>
  
  <p>User</p>
  
  <ul>
  <li>Username</li>
  <li>Password</li>
  <li>Name</li>
  <li>Surname</li>
  <li>Mobile</li>
  <li>Telephone</li>
  <li>Email</li>
  </ul>
  
  <p>Client</p>
  
  <ul>
  <li>Name</li>
  <li>Telephone</li>
  <li>Email</li>
  <li>Fax</li>
  <li>VatNo</li>
  </ul>
  
  <p>Supplier</p>
  
  <ul>
  <li>Name</li>
  <li>Telephone</li>
  <li>Email</li>
  <li>Fax</li>
  <li>VATNo</li>
  <li>LastRefreshDate</li>
  <li>OpeningHoursId</li>
  </ul>
  
  <p>Can somebody give me a suggestion as he best way to go forward.</p>