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March 5, 2018 13:09
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query4 mongo
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import pymongo | |
import sys | |
connection = pymongo.MongoClient("mongodb://localhost") | |
db = connection.school | |
scores = db.scores | |
def find(): | |
query = {} | |
try: | |
cursor = scores.find(query).sort('student_id', pymongo.ASCENDING).skip(4).limit(1) | |
#não adianta separar, o conjunto é executado quando o cursor é consumido!!!! | |
#para várias chaves use uma tupla, como exemplo abaixo | |
#.sort([('student_id', pymongo.ASCENDING), ('score', pymongo.DESCENDING)]) | |
except: | |
print ('Unexpected error:', sys.exc_info()[0]) | |
sanity = 0 | |
for doc in cursor: | |
print (doc) | |
sanity += 1 | |
if sanity > 10: | |
break | |
find() | |
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