title: How to append structure to a table of type ANY
body: <pre><code>DATA ls TYPE string.
  DATA lr_ref TYPE REF TO data.  
  FIELD-SYMBOLS &lt;'l_s&gt; TYPE any.  
  FIELD-SYMBOLS &lt;'l_t&gt; TYPE STANDARD TABLE.  
  
  ls = 'test'.  
  GET REFERENCE OF ls INTO lr_ref.  
  ASSIGN lr_ref-&gt;* TO &lt;'l_s&gt;.  
  </code></pre>
  <p>Now how should I append <code>&lt;'l_s&gt;</code> to <code>&lt;'l_t&gt;</code> ?</p>