CRUD operations are the foundational operations of persistent storage in MongoDB. CRUD stands for Create, Read, Update, and Delete. These operations allow you to manage the data stored in MongoDB collections. Understanding CRUD operations is essential for effectively working with MongoDB, as they form the core of any database interaction.

Here is a brief overview of each operation:

1. Create (Insert): Adds new documents to a collection.
2. Read (Query): Retrieves documents from a collection based on specified criteria.
3. Update: Modifies existing documents in a collection.
4. Delete: Removes documents from a collection.

These operations allow you to perform a wide range of data manipulation tasks, enabling you to create, retrieve, modify, and delete documents as needed.

Importance of CRUD Operations

CRUD operations are crucial for several reasons:

• Data Management: They provide the basic tools to manage the data lifecycle in a database.
• Flexibility: Allow you to manipulate and access data in various ways to fit your application's needs.
• Performance: Efficient CRUD operations can enhance the performance of your application by allowing precise data retrieval and manipulation.
• Data Integrity: Ensure that data can be added, retrieved, updated, and deleted correctly, maintaining the consistency and integrity of the database.

In the upcoming lessons, we will cover each operation with MongoDB queries.