MongoDB is a cross-platform, document-oriented database that works on the concept of collections and documents. MongoDB offers high speed, high availability, and high scalability.
Updating Data in MongoDB
We can update data in a collection using update_one() method and update_many() method.
update_one()
Update_one() method updated first occurrence if query is found.
Syntax :update_one(query, newvalues)
Parameters:
Query: It is the query object.
newvalues: It is the new values of the document.
Example:
Sample Database:
Python3
import pymongo # Database name db = client["GFG"] # Collection name col = db["gfg"] # Query to be updated query = { "coursename": "SYSTEM DESIGN" } # New value newvalue = { "$set": { "coursename": "Computer network" } } # Update the value col.update_one(query, newvalue) |
Output :
update_many()
update_many() method update all the query values.
Syntax: update_many(query, newvalues)
Parameters:
Query: It is the query object.
newvalues: It is the new values of the document.
Example:
Python3
import pymongo # Database name db = client["GFG"] # Collection name col = db["gfg"] # Query to be updated query = { "coursename": "SYSTEM DESIGN" } # New value newvalue = { "$set": { "coursename": "Computer network" } } # Update the value col.update_many(query, newvalue) |
Output:
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