How do I store files in MongoDB?
In MongoDB, use GridFS to store files larger than 16 MB. In some situations, storing large files can be more efficient in a MongoDB database than in a system-level file system. If your file system limits the number of files in a directory, you can use GridFS to store as many files as you need.
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Does MongoDB use schema?
Data in MongoDB has a flexible schema. Collections do not enforce document structure by default. This flexibility gives you data modeling options that are tailored to your application and performance requirements.
Why does MongoDB need a schema?
MongoDB elevates schema concerns down to the level of your application, where you can handle them with greater flexibility. For example, to add a new field to your documents, you don’t need to do an all-or-nothing ALTER to your collection, potentially millions of entries.
What type of data storage does MongoDB use?
MongoDB is a document-oriented NoSQL database used for large volume data storage. Instead of using tables and rows like in traditional relational databases, MongoDB makes use of collections and documents.
Why is there no schema in MongoDB?
MongoDB considers atomicity in some way. It also does not support transactions, however atomic operations are supported within a document. The data must be designed in such a way that it supports atomic operations. There is no declared schema, but it is very likely that an application will have a schema.
Why are rich documents important in MongoDB?
MongoDB supports rich documents. We can store a series of elements, a value for a certain key can be another whole document. This will allow us to pre-join/embed data for quick access. And that’s important because MongoDB doesn’t support joins directly within the kernel.
Why is it important to use MongoDB Atlas?
MongoDB Atlas allows developers to get started right away in any of the public clouds and easily migrate on-premises MongoDB instances to the cloud. MongoDB Atlas also incorporates powerful capabilities such as: MongoDB Atlas Data Lake, which allows object storage to become part of a database.