Creating a MongoDB a collection

As a collection belongs to a single database so first we will have to create a database for creating a collection

STEP 1: First run the following command into your mongo shell or command prompt

mongo

STEP 2: Check all the existing databases by using the following command

show dbs

STEP 3: Creating a database Here we are creating a database named as- w3wiki

use w3wiki

If the database w3wiki is present it will switch to it, else it will create a new database name as w3wiki and then switch to it as shown below.

STEP 4: Create a Collection

Collection is created using createCollection() method.Collection name is passed as argument in the method.

Syntax:

db.createCollection(‘Collection_name’);

Example : Create Student Collection

Query:

db.createCollection(‘Student’);

MongoDB, the most popular NoSQL database, is an open-source document-oriented database. The term ‘NoSQL’ means ‘non-relational’. It means that MongoDB isn’t based on the table-like relational database structure but provides an altogether different mechanism for storage and retrieval of data.