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....
In this article, we will create a basic Student app from scratch using the MERN stack which will implement all the CRUD(Create, Read, Update and Delete) Operations....
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 collection to another. Make sure that in the schema of both the collections all the fields are the same....
MongoDB, the most popular NoSQL database, we can count the number of documents in MongoDB Collection using the MongoDB collection.countDocuments() function. The mongodb module is used for connecting the MongoDB database as well as used for manipulating the collections and databases in MongoDB....
As modern applications require a database for storing data, MongoDB is a great choice. MongoDB Atlas is the global cloud database service for modern applications. We can use it for storing our application data on its server....
MongoDB, the most popular NoSQL database, is an open-source document-oriented database. The term ‘NoSQL’ means ‘non-relational’. It means that MongoDB isn’t based on the table-like relational database structure but provides an altogether different mechanism for storage and retrieval of data. This format of storage is called BSON ( similar to JSON format)....
MongoDB, the most popular NoSQL database, is an open-source document-oriented database. The term ‘NoSQL’ means ‘non-relational’. It means that MongoDB isn’t based on the table-like relational database structure but provides an altogether different mechanism for storage and retrieval of data. This format of storage is called BSON ( similar to JSON format)....
MongoDB, the most popular NoSQL database, we can get rows from the database by multiple columns conditionally from MongoDB Collection using the MongoDB collection.find() function with the help of $or or $and operators. The mongodb module is used for connecting the MongoDB database as well as used for manipulating the collections and databases in MongoDB....
MongoDB provides a createIndex() method to create one or more indexes on collections. Using this method we can create different types of indexes like text index, 2dsphere index, 2d index, etc. It takes three parameters first one is a document that contains the field and value pairs where the field is the index key and the value describes the type of index for that field and others are optional....
The insertMany() method inserts one or more documents in the collection. It takes array of documents to insert in the collection....
The findOne() method finds and returns one document that matches the given selection criteria. If multiple documents satisfy the given query expression, then this method will return the first document according to the natural order which reflects the order of documents on the disk. If no document matches the selection criteria, then this method will return null. It takes two parameters first one is the query criteria and the other is optional....
The findOneAndDelete() method deletes a single document based on the selection criteria from the collection. It deletes the first document from the collection that matches the given filter query expression. It takes five parameters the first parameter is the selection criteria and the others are optional....
