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MongoDB stores all data records in separate BSON documents. An identifier is provided to uniquely identify each document. The identifier helps users uniquely locate the document when searching for other documents. With the help of identifie...

In any database, we need to organize the data in a way that we can easily find that data when necessary. To do this, it is very important to create a unique identity. In MongoDB, there is a built-in unique identification system using a fiel...

This article will explore the number of ways to get the last N records in MongoDB, where N is a positive number greater than zero. We will see how to retrieve the number of documents with and without sorting. Get the last N records in Mongo...

This article is a step-by-step installation and configuration guide for Elasticsearch on Windows and Ubuntu 20.04. It also demonstrates using Elasticsearch with MongoDB on both operating systems. What is Elasticsearch Elasticsearch is a NoS...

This article teaches you how to use pipelines in MongoDB's lookup Aggregation Pipeline operator. Before proceeding, you must have enough knowledge about the aggregation pipeline and the Aggregation Pipeline operator to understand the use of...

To perform aggregation operations with MongoDB, you need to have a good understanding of the aggregation pipeline stages. This tutorial will explore $sort the stages through an example to perform a MongoDB aggregation sort. MongoDB Aggregat...

This tutorial discusses repairing database using MongoDB in Windows OS according to the problem we face. Repairing a Database in MongoDB There are different scenarios where we need to repair a database using MongoDB. For example, we repair...

This article will tell you about all the fields in a database and how to check if they exist. In addition, you will learn how to check if an embedded field exists in a database. Fields in the database A field is a physical structure that ho...

MongoDB is a powerful NoSQL database server. It uses JSON-like documents with optional schema to store data. Organizing data is always an essential task for developers as it plays the most critical role in the performance of the application...

In this MongoDB article, the problems with returning queries based on dates are pointed out. In addition, it explains in detail how to query using date ranges in MongoDB. Using date range queries in MongoDB This section will show you how to...

MongoDB is a well-known unstructured database management system that can handle large amounts of data. It is a document-oriented database system and belongs to the NoSQL family (non-SQL). Data and records are stored as documents that look a...

This MongoDB article will discuss the differences between MongoDB and Mongoose. Unfortunately, most beginners tend to confuse these two concepts when they start developing applications and use MongoDB as their backend. MongoDB has its own s...

In this article, we will discuss the functions in MongoDB. Also, we will point out the aggregation functions in detail. We will explain in detail the different ways to count and sort multiple and single fields of Group in MongoDB. Operation...

This MongoDB tutorial will teach you to fix the error on different operating systems shutting down with code:100 . It will also talk about the root cause of why this issue occurs. shutting down with code:100 Errors in MongoDB As we all know...

When using MongoDB , there are several ways to list the collections in the database. This article will discuss four different ways to get a list of collections in a MongoDB database. These methods are as follows: show collections List all c...