gatesvp

db.foo.drop();

db.foo.insert( { actor: "Richard Gere", movies: ['Pretty Woman', 'Runaway Bride', 'Chicago'] })
db.foo.insert( { actor: "Julia Roberts", movies: ['Pretty Woman', 'Runaway Bride', 'Erin Brockovich'] })
map = function() {
  for(var i in this.movies){
    key = { movie: this.movies[i] };
    value = { actors: [ this.actor ] };
    emit(key, value);
  }

gatesvp

<?php
$mongo = new Mongo();

$coll = $mongo->selectCollection('foo', 'documents');
$coll->drop();
$coll->insert( array( "bar foo" => array( 'bah baz' => 2 ) ) );

$res = $coll->find(array('bar foo.bah baz' => 2));

foreach($res as $r){

gatesvp

randomString = function(string_length) {
  var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz";
  var randomstring = '';
  for (var i=0; i<string_length; i++) {
    var rnum = Math.floor(Math.random() * chars.length);
    randomstring += chars.substring(rnum,rnum+1);
  }
  return randomstring;
}

gatesvp

> db.locations.insert({coords: [-79.4434, 44.1428], type: 'bank', tags:['24h', 'finance']})
> db.locations.insert({coords: [-62.0343, 45.4432], type: 'cinema', tags: ['film', 'popcorn']})
> db.locations.insert({coords: [-64.3433, 45.3341], type: 'cafe', tags: ['coffee', 'tea']})
> db.locations.distinct('type')
[ "bank", "cinema", "cafe" ]
> db.locations.ensureIndex({ type : 1 })
> db.locations.distinct('type')
[ "bank", "cafe", "cinema" ]
> db.locations.ensureIndex({coords: '2d', type: 1, tags: 1})
> db.locations.distinct('type')

gatesvp

Original Collection
Array
(
    [_id] => MongoId Object
        (
            [$id] => 4d963aa56803fa8318000000
        )

    [owner] => 1
    [type] => question

gatesvp

print(' ')
printShardingStatus()

db.runCommand({enablesharding : 'fred_sharded'})
db.runCommand({enablesharding : 'fred_sharded2'})
db.runCommand({shardcollection : 'fred_sharded.temp', key:{'_id':1}})
db.runCommand({shardcollection : 'fred_sharded2.temp', key:{'_id':1}})

db2 = db.getSisterDB('fred_sharded')
db3 = db.getSisterDB('fred_sharded2')

gatesvp

Method One: Array of Objects
------
var pd = { type: "Person", attributes: [{name: "Penelope Doe"},{age: 26}] };
var pd2 = { type: "Person", attributes: [ {name: "Johnny Doe"},{age: 27} ] };
db.foo.drop();
db.foo.save(pd);
db.foo.save(pd2);
db.foo.ensureIndex({attributes:1})
db.foo.find({'attributes' : {age : {$gt : 26 } } }).count()
db.foo.find({'attributes' : {age : {$gt : 26 } } }).explain()

gatesvp

> var d = {
... drives:{
...   C:{
...       windows:{
...           'explorer':{
...                 admin:'r+w'
...           }
...       }
...   }
... }

gatesvp

// Define function
subset = function (test, superset) {
    if (test.length > superset.length) {
        return false;
    }
    for (var i in test) {
        found = false;
        for (var j in superset) {
            found = found || superset[j] == test[i];
        }

gatesvp

function df {
    $colItems = Get-wmiObject -class "Win32_LogicalDisk" -namespace "root\CIMV2" `
    -computername localhost

    foreach ($objItem in $colItems) {
        write $objItem.DeviceID $objItem.Description $objItem.FileSystem `
                ($objItem.Size / 1GB).ToString("f3") ($objItem.FreeSpace / 1GB).ToString("f3")

    }