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How to Check Field Existence in MongoDB?

Last Updated: 08 January 2025

MongoDB is a NoSQL database that offers a variety of operators to enhance the flexibility and precision of queries. One such operator is $ex ...read more

MongoDB-operators

MongoDB - Regex

Last Updated: 08 January 2025

The $regex operator in MongoDB is a powerful tool that provides regular expression capabilities for pattern matching within strings in queri...read more

MongoDB-operators

Adding and Querying the Data in MongoDB

Last Updated: 01 August 2024

In MongoDB, data is stored in BSON format within collections. This guide covers the essential steps for adding and querying data in MongoDB,...read more

Web Technologies

MongoDB-operators

Similar Topics

Web Technologies

38.9k+ articles

DSA

22.5k+ articles

Python

20.5k+ articles

Experiences

16.5k+ articles

Interview Experiences

14.1k+ articles

Node.js

3.4k+ articles

Databases

2.2k+ articles

MongoDB

720+ articles

MongoDB

170+ articles

MongoDB-method

35+ articles

MongoDB $arrayElemAt Operator

Last Updated: 07 March 2025

MongoDB is a widely used NoSQL database known for its flexible data model. One of the essential features of MongoDB is its support for array...read more

MongoDB-operators

MongoDB - $concat Operator

Last Updated: 07 March 2025

MongoDB, a powerful NoSQL database, offers a wide range of tools to manage and manipulate data. Among these tools, the MongoDB $concat opera...read more

MongoDB-operators

MongoDB $subtract Operator

Last Updated: 21 February 2025

MongoDB’s $subtract operator is an essential tool in the aggregation pipeline, allowing users to perform subtraction operations on numbers...read more

MongoDB-operators

MongoDB $toLower Operator

Last Updated: 10 March 2025

The $toLower operator in MongoDB is a powerful tool used within the aggregation pipeline to convert string fields to lowercase. Converting s...read more

MongoDB-operators

MongoDB $addToSet Operator

Last Updated: 08 January 2025

The $addToSet operator in MongoDB allows us to add elements to an array field if they are not already present and ensure that the array cont...read more

MongoDB-operators

MongoDB - $setOnInsert Operator

Last Updated: 21 June 2024

The $setOnInsert operator in MongoDB is a powerful tool used in updating operations with the upsert option. It allows us to specify values t...read more

MongoDB-operators

MongoDB - Current Date Operator ($currentDate)

Last Updated: 08 January 2025

MongoDB provides different types of field update operators to update the values of the fields of the documents and $currentDate operator is ...read more

MongoDB-operators

MongoDB - Rename Operator ($rename)

Last Updated: 29 January 2025

MongoDB $rename operator is a powerful tool for for efficiently renaming fields within documents. This operator ensures data consistency and...read more

MongoDB-operators

MongoDB - Logical Query Operators

Last Updated: 05 March 2025

Logical query operators in MongoDB are fundamental tools used to combine or modify the results of queries using logical conditions. These op...read more

MongoDB-operators

MongoDB - Comparison Query Operators

Last Updated: 04 March 2025

MongoDB provides powerful comparison query operators to filter and retrieve documents based on field values. These operators help developers...read more

MongoDB-operators

MongoDB $push Operator

Last Updated: 08 January 2025

The $push operator in MongoDB is a powerful tool used to update arrays within documents. It appends the entire array as a single element. To...read more

MongoDB-operators

MongoDB $pull Operator

Last Updated: 24 July 2024

The $pull operator in MongoDB is a powerful update operator used to remove all instances of a specified value or values from an array. This ...read more

MongoDB-operators