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AGGREGATE world

From NoSQLZoo
Revision as of 11:59, 16 July 2015 by 40166222 (talk | contribs)
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#ENCODING
import io
import sys
sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-16')
#MONGO
from pymongo import MongoClient
client = MongoClient()
client.progzoo.authenticate('scott','tiger')
db = client['progzoo']
#PRETTY
import pprint
pp = pprint.PrettyPrinter(indent=4)

Country Profile

For these questions you should use find() on the collection world

Show the name for the countries that have a population of at least 200 million.

pp.pprint(list(
    db.world.find({},{"name":1,"_id":0})
))

pp.pprint(list(

   db.world.find({"population":{"$gt":20000000}},{"name":1,"_id":0})

))