title: Mysql update BUT keep the old data?
body: <p>In a customer CMS the customer can update their personal information, like change their address and first/last name. I use a mysql <code>UPDATE</code> query for that. </p>
  
  <p>Problem with working like this is, is that people can change their information. E.g. change their name from <code>john doe</code> to <code>asdfdas</code>. I would like to SAVE their old information.</p>
  
  <p>What are my options? What is the best way to do this?</p>