Does MongoDB have a schema?

Question

Data in MongoDB has a flexible schema. Collections do not enforce document structure by default. This flexibility gives you data-modeling choices to match your application and its performance requirements. An introduction to data modeling in MongoDB.

Does MongoDB have a fixed schema?

MongoDB is not able to validate or enforce a schema.

Where is schema in MongoDB?

We can get the schema object/first document of the collection using : var schemaObj = db. users. findOne();

What is database schema in MongoDB?

A flexible data model, such as the one found in MongoDB, lets you store or aggregate any type of data and dynamically change schema without application downtime. Data in MongoDB is stored in documents and similarly structured documents are typically organized into collections.

Do we need to create schema in MongoDB?

You don't create collections in MongoDB. You just start using them immediately whether they “exist” or not. Now to defining the “schema”. As I said, you just start using a collection, so, if you need to ensure an index, just go ahead and do this.

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