Python MongoDB - find_one_and_replace Query Last Updated : 13 Jul, 2022 Summarize Suggest changes Share Like Article Like Report find_one_and_replace() method search one document if finds then replaces with the given second parameter in MongoDb. find_one_and_replace() method is differ from find_one_and_update() with the help of filter it replace the document rather than update the existing document. Syntax: find_one_and_replace(filter, replacement, projection=None, sort=None, return_document=ReturnDocument.BEFORE, session=None, **kwargs) Parameters filter: A query for replacement of a matched document. replacement: replacement document. projection: it is optional.A list of a field that should be returned in the result. sort: key, direction pair for the sort order of query. return_document: ReturnDocument.BEFORE (default) will return the original document without replacement. ReturnDocument.AFTER will return the replaced or inserted document.**kwargs: Additional commands. Sample database used in all the below examples: Example 1: Python3 import pymongo # establishing connection # to the database client = pymongo.MongoClient("mongodb://localhost:27017/") # Database name db = client["mydatabase"] # Collection name col = db["gfg"] # replace with the help of # find_one_and_replace() col.find_one_and_replace({'coursename': 'SYSTEM DESIGN'}, {'coursename': 'PHP'}) # print the document after replacement for x in col.find({}, {"_id": 0, "coursename": 1, "price": 1}): print(x) Output: Example 2: Python3 import pymongo # establishing connection # to the database client = pymongo.MongoClient("mongodb://localhost:27017/") # Database name db = client["mydatabase"] # Collection name col = db["gfg"] # replace with the help of # find_one_and_replace() col.find_one_and_replace({'price': 9999}, {'price': 19999}) # print the document after replacement for x in col.find({}, {"_id": 0, "coursename": 1, "price": 1}): print(x) Output: Advertise with us Next Article Python MongoDB - Sort A avengerjanus123 Follow Similar Reads Python MongoDB Tutorial MongoDB is a popular NoSQL database designed to store and manage data flexibly and at scale. 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