text as primarykey in android
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/7591492/is-it-possible-to-apply-primary-key-on-the-text-fields-in-android-database">Is it possible to apply primary key on the text fields in android database</a>  </p>
</blockquote>



<pre><code>private static final String CREATE_NEWCUSTOMER = 
                "create table newcustomer (_id integer  autoincrement, " + 
                "cname text  , date text , " + "caddress text);";
</code></pre>

<p>in this how can I use <code>cname</code> as the primary key.</p>
