title: mongo db find operation query is not working
body: <p>Am new to mongodb</p>
  
  <p><code>db.myjobs.find()</code> gets following results</p>
  
  <pre><code>{ "_id" : ObjectId("52849a7b8dd61980d1b49b87"), "browser" : "FF20", "id" : "70", "jobs" : [ { "_id" : "5281d1680d0f2f2aaec5787e",   "date" : "Tue Nov 12 2013 12:27:44 GMT+0530 (IST)", "id" : "29" } ],  "os" : "VM-WIN7-64", "server" : "172.16.2.120" }
  </code></pre>
  
  <p>from the above result i have to return  <code>"os" : "VM-WIN7-64"</code> on the basis of <code>id=29</code> inside <code>jobs</code></p>
  
  <p>am using following code and it is not correct.</p>
  
  <pre><code>db.myjobs.find( { id: 29 } )
  </code></pre>
  
  <p>How can i get <code>"os" : "VM-WIN7-64"</code> by inputting <code>id</code>(id=29) inside <code>jobs</code>  no need to get <code>os</code> details using <code>"id":"70"</code></p>