Python MongoDB Create Database
<!--
main_leaderboard, all: [728,90][970,90][320,50][468,60]-->
Python MongoDB Create Database
❮ Previous
Next ❯
Creating a Database
To create a database in MongoDB, start by creating a MongoClient object, then specify a connection URL with the
correct ip address and the name of the database you want to create.
MongoDB will create the database if it does not exist, and make a connection
to it.
Example
Create a database called "mydatabase":
import pymongo
myclient = pymongo.MongoClient("mongodb://localhost:27017/")
mydb = myclient["mydatabase"]
Run example »
Important: In MongoDB, a database is not created until it
gets content!
MongoDB waits until you have created a collection (table), with at least one document (record) before it actually creates the database (and collection).
Check if Database Exists
Remember: In MongoDB, a database is not created until it
gets content, so if this is your first time creating a database, you should
complete the next two chapters (create collection and create document) before
you check if the database exists!
You can check if a database exist by listing all databases in you system:
Example
Return a list of your system's databases:
print(myclient.databases_names())
Run example »
Or you can check a specific database by name:
Example
Check if "mydatabase" exists:
dblist = myclient.database_names()
if "mydatabase" in dblist:
print("The database exists.")
Run example »
❮ Previous
Next ❯
