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Category Archives: MongoDB

In MongoDB, Population is the process of replacing the specified path in the document of one collection with the actual document from the other collection.… Read More
There are many news delivery websites are available like ndtv.com. In this article, let us see the very useful and interesting feature of how to… Read More
Virtuals are document properties that do not persist or get stored in the MongoDB database, they only exist logically and are not written to the… Read More
The following approach covers move MongoDB documents from one collection to another. With the help of mongoose, we will move a MongoDB document from one… Read More
MongoDB is an open-source NoSQL database. It is a document-oriented database, uses a JSON-like structure called BSON to store documents(i.e. key-value pairs). MongoDB provides the… Read More
Mocha: Mocha is a testing framework that is used to perform tests within our application.It makes sure everything works correctly. ‘Mocha in Node.js’ means using… Read More
MongoDB allows you to export its data into other file formats like JSON or CSV so that the data can be used externally by other… Read More
MongoDB provides indexing for efficient execution of queries without indexes MongoDB has to search every document to match the query which is highly inefficient. Indexes… Read More
MongoDB provides a special tool that is used to import data in the MongoDB and the tool is known as mongoimport. Using this tool you… Read More
In MongoDB, upsert is an option that is used for update operation e.g. update(), findAndModify(), etc. Or in other words, upsert is a combination of… Read More
In MongoDB, copyTo() method is used to copies all the documents from one collection(Source collection) to another collection(Target collection) using server-side JavaScript and if that… Read More
Timestamp: With the help of timestamp document in the collection of the MongoDB can be differentiated on the basis of time. We can add Timestamp… Read More
MongoDB provides a good technique that is text search. Using this technique we can find a piece of text or a specified word from the… Read More
Data backup is one of the most highly required processes for any database management system as data can be lost or get corrupted to overcome… Read More
The createIndexes() method creates one or more indexes on the specified collection. It is used to create one or more indexes based on the field… Read More