title: updating a doc couchdb
body: <p>Please bear with me if my question is simple, I'm so new to couchDB:</p>
  
  <p>I have this document:</p>
  
  <pre><code>{
     Name : Raju
     age : 23
     Designation : Designer
  }
  </code></pre>
  
  <p>How can I update my document to:</p>
  
  <pre><code>{
     Name : Raju
     age : 23
  }
  </code></pre>
  
  <p>Can I use <code>insert</code>for the document with my desired data which is <code>{Name : Raju, age : 23}</code> object? Does it delete <code>Designation</code> field?</p>