Generate unique string for Lucky number
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/730268/unique-random-string-generation">Unique random string generation</a>  </p>
</blockquote>



<p>I have to generate a random unique string. The purpose of this is to generate a <strong>Lucky Number</strong> after every successful entry in a table.</p>

<p>I dont like to use GUID, since it is as dash(-) in between.
<a href="http://stackoverflow.com/questions/730268/unique-random-string-generation">Here is an example</a> but it also seems too long.</p>

<p>I would like to generate a string which has around 10 chars.</p>

<p>Any good ideas would be much much appreciated.
Cheers</p>
