MongoDB is a document-oriented NoSQL database that is a non-relational DB. MongoDB is a schema-free database that is based onBinary JSON format. It is organized with a group of documents (rows in RDBMS) called collection (table in RDBMS). The collections in MongoDB are schema-less.PyMongo is one of the MongoDB drivers or client libraries. Using the PyMongo module we can send requests and receive responses from
Count the number of Documents using Python
Method 1: Using count() The total number of documents present in the collection can be retrieved by usingcount() method. Deprecated in version 3.7.
Syntax :
db.collection.count()
Example : Count the number of documents (my_data) in the collection using count().Sample Database:
Python3frompymongoimportMongoClientClient=MongoClient()myclient=MongoClient('localhost',27017)my_database=myclient["GFG"]my_collection=my_database["Student"]# number of documents in the collectionmydoc=my_collection.find().count()print("Thenumberofdocumentsincollection:",mydoc)Output :
The number of documents in collection : 8
Method 2: count_documents() Alternatively, you can also use count_documents() function in pymongo to count the number of documents present in the collection.
Syntax :
db.collection.count_documents({query, option})Example: Retrieves the documents present in the collection and the count of the documents using count_documents().
Python3frompymongoimportMongoClientClient=MongoClient()myclient=MongoClient('localhost',27017)my_database=myclient["GFG"]my_collection=my_database["Student"]# number of documents in the collectiontotal_count=my_collection.count_documents({})print("Totalnumberofdocuments:",total_count)Output:
Total number of documents : 8
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