📄️ CRUD operations
CRUD stands for Create, Read, Update, and Delete—these are the basic operations that you can perform on data stored in a MongoDB database. Below is an overview of how CRUD operations are implemented in MongoDB:
📄️ Create in MongoDB
Creating data in MongoDB involves inserting documents into collections. A document is essentially a record that contains data in field-value pairs. MongoDB provides various methods to insert data, and here's a detailed look at some of the most commonly used ones:
📄️ Create Advanced Concepts
WriteConcern
📄️ Read in MongoDB
Reading data in MongoDB involves querying documents from collections. MongoDB offers a rich set of query operators and methods to retrieve data based on various conditions. Here's a detailed look at some of the most commonly used read operations:
📄️ Read Operators
MongoDB provides a rich set of query operators that can be used in both find() and findOne() methods to filter and manipulate the data you're querying. Here's a detailed list of different types of operators:
🗃️ Aggregate
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📄️ Update in MongoDB
In MongoDB, the modify operation is part of the CRUD (Create, Read, Update, Delete) operations and focuses on updating existing documents within a collection. You can modify single or multiple documents using various update operators. Below are some common methods and operators used for modifying data:
📄️ Delete in MongoDB
In MongoDB, the delete operation is part of the CRUD (Create, Read, Update, Delete) operations and focuses on removing existing documents from a collection. Below are some common methods used for deleting data: