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http://try.mongodb.org/
http://docs.mongodb.org/manual/tutorial/install-mongodb-on-windows/
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DBCollection help

db.foo.count()

db.foo.dataSize()

db.foo.distinct( key ) - eg. db.foo.distinct( 'x' )

db.foo.drop() drop the collection

db.foo.dropIndex(name)

db.foo.dropIndexes()

db.foo.ensureIndex(keypattern,options) - options should be an object with these possible fields: name, unique, dropDups

db.foo.find( [query] , [fields]) - first parameter is an optional query filter. second parameter is optional set of fields to return.

e.g. db.foo.find( { x : 77 } , { name : 1 , x : 1 } )

db.foo.find(...).count()

db.foo.find(...).limit(n)

db.foo.find(...).skip(n)

db.foo.find(...).sort(...)

db.foo.findOne([query])

db.foo.getDB() get DB object associated with collection

db.foo.getIndexes()

db.foo.group( { key : ..., initial: ..., reduce : ...[, cond: ...] } )

db.foo.mapReduce( mapFunction , reduceFunction , )

db.foo.remove(query)

db.foo.renameCollection( newName ) renames the collection

db.foo.save(obj)

db.foo.stats()

db.foo.storageSize() - includes free space allocated to this collection

db.foo.totalIndexSize() - size in bytes of all the indexes

db.foo.totalSize() - storage allocated for all data and indexes

db.foo.update(query, object[, upsert_bool])

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DBCollection help

show collections              show collections in current database

db.help()                     help on DB methods

db.foo.help()                 help on collection methods

db.foo.find()                 list objects in collection foo

db.foo.save({a: 1})           save a document to collection foo

db.foo.update({a: 1}, {a: 2}) update document where a is 1

db.foo.find({a: 1})           list objects in foo where a == 1

it                            result of the last line evaluated; use to further iterate