arangosh&gt; db.example.save({ Hello : <span class="hljs-string">"world"</span> });
{ 
  <span class="hljs-string">"_id"</span> : <span class="hljs-string">"example/223479"</span>, 
  <span class="hljs-string">"_key"</span> : <span class="hljs-string">"223479"</span>, 
  <span class="hljs-string">"_rev"</span> : <span class="hljs-string">"223479"</span> 
}
arangosh&gt; db.example.replaceByExample({ Hello: <span class="hljs-string">"world"</span> }, {Hello: <span class="hljs-string">"mars"</span>}, <span class="hljs-literal">false</span>, <span class="hljs-number">5</span>);
<span class="hljs-number">1</span>