<div class="content"><p>The UPDATE_REQUEST_TYPE enumerated type specifies the type
of updates being requested when the client calls the <a href="e321d7d9-babf-4431-b055-871137014855" data-linktype="relative-path">RequestUpdates</a> method.</p><dl>
<dd>
<div><pre> typedef  enum 
 {
   UPDATE_REQUEST_ALL = 0,
   UPDATE_REQUEST_TOMBSTONES = 1,
   UPDATE_REQUEST_LIVE = 2
 } UPDATE_REQUEST_TYPE;
</pre></div>
</dd></dl><p><b>UPDATE_REQUEST_ALL:</b>  Request all updates that
pertain to a <a href="81169399-de63-4f92-8da0-91bd31e3c24c#gt_b5d43ea0-cf01-4294-b0d8-0b0362d4a3a2" data-linktype="relative-path">version chain
vector</a>.</p><p><b>UPDATE_REQUEST_TOMBSTONES:</b>  Request only
tombstone updates that pertain to a version chain vector.</p><p><b>UPDATE_REQUEST_LIVE:</b>  Request only
non-tombstone updates that pertain to a version chain vector.</p></div>