Because MongoDB creates a collection implicitly when the collection is first referenced in a command, this method is used primarily for creating new collections that use specific options. For example, you use db.createCollection() to create a: Capped collection. Clustered collection. New collection that uses schema validation.

Feb 21, 2019 · You can use $out operator to create a new collection based on aggregation results, try: pipeline = [ { $match: { copies: { $exists: true } } } { $out: "newCollectionName" } ] db.collection.aggregate(pipeline)

Jul 31, 2018 · I want to Create a new collection from an existing collection using variable Name. Eg : "Traits":/data/

May 22, 2017 · When I search for this, I see docs pointing to insert() in mongodb, but that looks like a way to insert new documents in to an existing collection. Is there a way to add a script to the load() function to be able to create a new collection inside my db?

Jan 28, 2025 · MongoDB copyTo() method is used to duplicate the contents of one collection into another collection within the same database. It's like making a copy of a file on your computer to another location. In this article, We will learn about MongoDB copyTo() Method with the help of examples and so on.

Feb 24, 2025 · MongoDB allows automatic collection creation when inserting the first document. If a specified collection does not exist, MongoDB creates it dynamically without requiring additional commands. This method simplifies database management by avoiding manual setup.

Feb 2, 2024 · You can create a collection implicitly by inserting a document into what you intend to be a new collection. MongoDB will automatically create the collection if it does not yet exist. db.createCollection("inventory") Output: { "ok": 1 } Explicit Collection Creation

To create a new collection in MongoDB implicitly, follow below steps : Step 1: Select a MongoDB database you like to Create a Collection within, using USE command. Following is the syntax of USE command. Step 2: Insert a record to Collection, with Collection Name mentioned in the command as shown below. The collection should be created.

Suppose you have collection name data1 and you want to make new collection data2 with same indexes or want to delete or add some index you can do this by using this query. data1 have indexes | FirstName | MiddleName | LastName | Age | Occupation

Sep 27, 2022 · You’ll be using the sample data from MongoDB to learn how to do an aggregation and create a new collection. In Mongo, a dataset is called a collection; think of it as a special spreadsheet. Whereas the records in a spreadsheet are …