title: invalide username or password when validate it sqlite iphone
body: <p>when Click on update button then data does not updated i want to just updated my password</p>
  
  <blockquote>
    <p>first match old password
    if old  password match with database then validate new password and conform password using isEquelToString then click on update button and oldpassword must be updated with newPassword </p>
  </blockquote>