Samar da Python MongoDB

samar da kundin

Za a iya amfani da update_one() hanyar samar da wajibai da dokumentu a MongoDB

update_one() Alakawar farko ita ce query na littafin, wanda zai bayyana littafin na nuni don samar da

Kwalliya:Idan anu kiyayi manyan zane-zane, zai samu kawai na farko da yana da kiyayar

Alakawar kafin na abin da kuma na inganta dokumentin

Misali

Gina adawci "Valley 345" zuwan zu "Canyon 123":

import pymongo
myclient = pymongo.MongoClient("mongodb://localhost:27017/")
mydb = myclient["mydatabase"]
mycol = mydb["customers"]
myquery = { "address": "Valley 345" }
newvalues = { "$set": { "address": "Canyon 123" } }
mycol.update_one(myquery, newvalues)
#print "customers" after the update:
for x in mycol.find():
  print(x)

Gudanar Misali

Tabbatar manyan

Don tabbatar duk doki da zai iyaka da kwatancen, a samu update_many() Hanyar.

Misali

Tabbatar adaji na hanyar "S" a kan duk doki:

import pymongo
myclient = pymongo.MongoClient("mongodb://localhost:27017/")
mydb = myclient["mydatabase"]
mycol = mydb["customers"]
myquery = { "address": { "$regex": "^S" } }
newvalues = { "$set": { "name": "Minnie" } }
x = mycol.update_many(myquery, newvalues)
print(x.modified_count, "documents updated.")

Gudanar Misali