title: How can I delete user details of database in SQL Server 2012
body: <p>I am sorry, maybe this is simple question but I didn't figure it out. I am new to database side, I created a database <code>Freshtime</code> with user details (<code>User Name:Infratab</code>). I backup my entire database and send to one of my colleague.</p>
  
  <p>I assign the following rules to <code>Infratab</code> (User)</p>
  
  <pre><code>General:
       Default Schema : dbo
  Owned Schema :
        db_ddladmin,db_owner
  Membership :
        None
  </code></pre>
  
  <p>He restored <code>Freshtime</code> on his system, and he wants to delete user details in his system, so he asked me to delete user details in my system and re-again send backup file. I said okay.</p>
  
  <p>But I am unable to delete user details.I am getting the following error.</p>
  
  <pre><code>the database principal owns a schema and cannot be dropped error 15138
  </code></pre>