Question

How do you create a new database in MongoDB using PyMongo?

Answer 1

To create a new database in MongoDB using PyMongo, you need to perform the following steps:

1. Import the MongoClient class from the pymongo module:

   from pymongo import MongoClient
    

2. Create a new MongoClient object and connect to the MongoDB server. You can specify the server address and port number in the constructor of the MongoClient object. If the server is running on the same machine, you can use 'localhost' as the address and 27017 as the port number:

   client = MongoClient('localhost', 27017)
    

3. Create a new database by accessing it as an attribute of the MongoClient object. If the database doesn't exist, it will be created automatically when you first write data to it:

   db = client['mydatabase']
    

   Here, we are creating a database named 'mydatabase'. If the database already exists, it will be opened.

4. You can then create a new collection in the database by accessing it as an attribute of the database object:

   collection = db['mycollection']
    

   Here, we are creating a collection named 'mycollection' in the 'mydatabase' database.

5. You can insert data into the collection using the insert_one() or insert_many() method of the collection object:

   document = {"name": "Alice", "age": 25}
   result = collection.insert_one(document)
    

   Here, we are inserting a single document into the 'mycollection' collection.

That's it! You have created a new database in MongoDB using PyMongo and inserted data into it.