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Spring Boot JpaRepository with Example

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Spring Boot is built on the top of the spring and contains all the features of spring. And is becoming a favorite of developers these days b...read more

Java-Spring-Boot

How to build a basic CRUD app with Node.js and ReactJS ?

Last Updated: 10 April 2022

In this article, we will create a basic Student app from scratch.App functionality:Create a new studentUpdate an existing studentShow studen...read more

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Mongoose Populate() Method

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In MongoDB, Population is the process of replacing the specified path in the document of one collection with the actual document from the ot...read more

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Upsert in MongoDB

Last Updated: 11 November 2022

In MongoDB, upsert is an option that is used for update operation e.g. update(), findAndModify(), etc. Or in other words, upsert is a combin...read more

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In MongoDB, find() method is used to select documents in a collection and return a cursor to the selected documents. Cursor means a pointer ...read more

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Last Updated: 22 November 2021

In MongoDB, we can check the existence of the field in the specified collection using the $exists operator. When the value of $exists operat...read more

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Follow these simple steps to learn how to create a login form using Node.js and MongoDB. Node JS login form allows users to log in to the we...read more

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Upload and Retrieve Image on MongoDB using Mongoose

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Mongoose | findByIdAndUpdate() Function

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Mongoose | findOne() Function

Last Updated: 17 March 2023

The findOne() function is used to find one document according to the condition. If multiple documents match the condition, then it returns t...read more

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Mongoose | findById() Function

Last Updated: 20 May 2020

The findById() function is used to find a single document by its _id field. The _id field is cast based on the Schema before sending the com...read more

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Mongoose | insertMany() Function

Last Updated: 20 May 2020

The insertMany() function is used to insert multiple documents into a collection. It accepts an array of documents to insert into the collec...read more

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Mongoose | updateOne() Function

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The updateOne() function is used to update the first document that matches the condition. This function is the same as update(), except it d...read more

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Mongoose find() Function

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The find() function is used to find particular data from the MongoDB database. It takes 3 arguments and they are query (also known as a cond...read more

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MongoDB: An introduction

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MongoDB, the most popular NoSQL database, is an open-source document-oriented database. The term 'NoSQL' means 'non-relational'. It means th ...read more

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