Which of the following databases is a NoSQL database?
- MySQL
- SQLite
- MongoDB
- PostgreSQL
MongoDB is a NoSQL database, known for its flexibility in handling unstructured or semi-structured data. It uses a document-oriented data model, making it a popular choice for applications that require dynamic, schema-less data storage. MySQL, SQLite, and PostgreSQL are all SQL databases, which follow a structured, table-based data model.
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