mongodb create collection

In MongoDB, a collection is created automatically when data is first inserted into it. However, you can also create a new collection explicitly using the createCollection method.

Here are the steps to create a new collection in MongoDB:

1. Open the MongoDB shell: Open a terminal or command prompt and run the mongo command to open the MongoDB shell.

2. Switch to the database where you want to create the collection: Use the use command followed by the name of the database to switch to the database where you want to create the collection. For example, to switch to a database named "mydb", run the following command:

use mydb

3. Create a new collection: Use the createCollection method to create a new collection. For example, to create a collection named "mycollection", run the following command:

db.createCollection("mycollection")

4. Check that the collection has been created: Run the show collections command to see a list of collections in the current database. You should see the new "mycollection" collection listed.