To find documents that match a set of selection criteria, call find() with the <criteria> parameter. MongoDB provides various query operators to specify the criteria. The following operation uses the $in operator to return documents in the bios collection where _id equals either 5 or ObjectId("507c35dd8fada716c89d0013") :

Jan 28, 2025 · The find() method is the primary way to retrieve documents from a collection in MongoDB. It provides extensive flexibility through its query operators , projection option s, and additional parameters to customize the results.

Starting in MongoDB 7.3, when you use a find command on a view with the singleBatch: true and batchSize: 1 options, a cursor is no longer returned. In previous versions of MongoDB these find queries would return a cursor even when you set the single batch option to true .

May 9, 2024 · The db.collection.find() method in MongoDB is used to retrieve all documents or a specific document that matches the criteria from a collection. By default, it returns 20 records/documents from the collection.

Find Data. There are 2 methods to find and select data from a MongoDB collection, find() and findOne(). find() To select data from a collection in MongoDB, we can use the find() method. This method accepts a query object. If left empty, all documents will be returned.

Feb 17, 2020 · Learn the basics of the MongoDB find() through query examples that you can run on the mongo shell to query documents in a sample dataset.

Summary: in this tutorial, you’ll learn how to use the MongoDB find() method to select documents from a collection. Introduction to the MongoDB find() method The find() method finds the documents that satisfy a specified condition and returns a cursor to the matching documents.

Feb 26, 2025 · Understand the purpose of the find() method in MongoDB, followed by a detailed look at its syntax in the context of db.collection.find. By the end of this article, you'll have a solid grasp of the MongoDB find() method and how to effectively use it in your projects.

Jan 8, 2024 · MongoDB provides a find operator to query documents from a collection. The main purpose of the find operator is to select documents from a collection based on the query condition and return a cursor to the selected documents.

Starting in MongoDB 4.4, db.collection.find() projection can accept aggregation expressions and syntax. With the use of aggregation expressions and syntax, you can project new fields or project existing fields with new values.