Microsoft Windows [Version 5.2.3790]
(C) Copyright 1985-2003 Microsoft Corp.

C:\Documents and Settings\robert>D:\mongo\bin\mongo.exe
MongoDB shell version: 1.6.5
connecting to: test
> use cf_master_trunk_sm
switched to db cf_master_trunk_sm
> query = {};
{ }
> query["PPL.ID"] = {};
{ }
> query
{ "PPL.ID" : { } }
> query["PPL.ID"]["$all"] = [63,942];
[ 63, 942 ]
> query.DUO = true;
true
> query
{ "PPL.ID" : { "$all" : [ 63, 942 ] }, "DUO" : true }
> db.messages.findOne(query);
{
        "_id" : ObjectId("4f4e3f71a79301c9e75a8ac2"),
        "CID" : ObjectId("4f4e3f71a79301c9e75a8ac2"),
        "MSG" : "Hello",
        "PPL" : [
                {
                        "ID" : 63,
                        "RD" : "Wed Feb 29 2012 10:08:33 GMT-0500 (Eastern Stand
ard Time)",
                        "SND" : true,
                        "NM" : "Teacher"
                },
                {
                        "ID" : 942,
                        "NM" : "Hayden"
                }
        ],
        "DUO" : true
}
>