How to enable authentication in MongoDB Server?

By default, MongoDB has authentication disabled. To enable authentication in MongoDB we need to create a user and also have to change the config file. In this post, we will learn step by step to enable authentication in MongoDB. After … Read More

MongoDB to Atlas Migration

Are you currently using MongoDB as your database, but finding it difficult to manage and scale? It may be time to consider migrating to MongoDB Atlas, a fully-managed cloud database service that provides increased flexibility, scalability, and security. In this … Read More

Array Operator in MongoDB

The array operator in MongoDB is used to query for array fields. We’ve other fields type like String, Numeric and Boolean values. These are common types and have the same kind of implementation. But the Array is a little different … Read More

MongoDB $expr Expressive Query Operator

The $expr operator in MongoDB is an Expressive Query Operator. It does more than the single operator like $and and $or. It allows the use of aggregation expressions within the query language. The syntax of $expr operator is given below: … Read More

Logical Operator in MongoDB

A logical operator is a word or a function that can be used to compare two or more expressions so that the compounded result will return the boolean value. MongoDB supports the standard set of four Logical Operators that we … Read More

Comparison Operator in MongoDB

In this post, we will learn some comparison operator in MongoDB. The comparison operator in MongoDB can be used to return the data based on the value comparison in the fields. The equivalent of Java can be read in this … Read More

Delete in MongoDB

In this post, we will learn to use the delete command in MongoDB. As we all know, having a delete functionality is very important in any system so that we can remove unwanted data when required. Delete MongoDB Collection To … Read More

Update MongoDB Document

In this post, we will learn to update a MongoDB Document. Update functionality is very important in every field so as in the MongoDB document. In MongoDB, we use the following two methods to update a MongoDB Document. updateOne() and … Read More

find() command in MongoDB

The find() command in MongoDB is used to find the data from the collection. There are various options for executing the find() command in MongoDB. In this post, we will be using these options along with the find() command. To … Read More

Import and Export in MongoDB

In this post, we will learn the different types of import and export commands in MongoDB. Let’s say we have data in our MongoDB database and want to keep a backup of it by exporting or we want to insert … Read More