Python MongoDB Limit
- Sehemu ya Kudumu MongoDB Sanaa
- Pya Tena Muonekano wa Makala ya Python
Inahatarisha matokeo
Kuwa tukio inayohatarisha matokeo ya MongoDB tukina limit() Methodi.
limit() Methodi inayotaka parameter, inayotaka namba inayofafanua ukurudisha idadi ya doкуmenti.
Tukio wako kina ina "customers" kige
Customers
{'_id': 1, 'name': 'John', 'address': 'Highway37'}
{'_id': 2, 'name': 'Peter', 'address': 'Lowstreet 27'}
{'_id': 3, 'name': 'Amy', 'address': 'Apple st 652'}
{'_id': 4, 'name': 'Hannah', 'address': 'Mountain 21'}
{'_id': 5, 'name': 'Michael', 'address': 'Valley 345'}
{'_id': 6, 'name': 'Sandy', 'address': 'Ocean blvd 2'}
{'_id': 7, 'name': 'Betty', 'address': 'Green Grass 1'}
{'_id': 8, 'name': 'Richard', 'address': 'Sky st 331'}
{'_id': 9, 'name': 'Susan', 'address': 'One way 98'}
{'_id': 10, 'name': 'Vicky', 'address': 'Yellow Garden 2'}
{'_id': 11, 'name': 'Ben', 'address': 'Park Lane 38'}
{'_id': 12, 'name': 'William', 'address': 'Central st 954'}
{'_id': 13, 'name': 'Chuck', 'address': 'Main Road 989'}
{'_id': 14, 'name': 'Viola', 'address': 'Sideway 1633'}
Mfano
Inaonyesha matokeo yenye mpaka tu ya kumwambia 5 mafikirio:
import pymongo
myclient = pymongo.MongoClient("mongodb://localhost:27017/")
mydb = myclient["mydatabase"]
mycol = mydb["customers"]
myresult = mycol.find().limit(5)
# Inaonyesha Matokeo:
kwa x ina myresult:
print(x)
- Sehemu ya Kudumu MongoDB Sanaa
- Pya Tena Muonekano wa Makala ya Python
