“Document DB” typically refers to a type of NoSQL database designed for storing, retrieving, and managing semi-structured or unstructured data in a document format. One of the well-known document databases is Azure Cosmos DB, which is provided by Microsoft Azure. Here, we’ll focus on Azure Cosmos DB as an example of a document database:

Azure Cosmos DB:

• Azure Cosmos DB is a globally distributed, multi-model database service offered by Microsoft Azure.
• It is designed to handle large volumes of data and provide high availability, low latency, and scalability for global applications.
• Cosmos DB supports multiple data models, including document, key-value, graph, and column-family, making it a multi-model database service.
• The document model in Cosmos DB is based on JSON (JavaScript Object Notation), allowing you to store and query semi-structured data.
• Key features of Azure Cosmos DB include:
  • Global Distribution: Cosmos DB can replicate data to multiple Azure regions for low-latency access and high availability.
  • Multi-model Support: It provides the flexibility to choose the right data model for your application’s needs.
  • Scalability: Cosmos DB can scale both horizontally and vertically to accommodate changing workloads.
  • Automatic Indexing: It automatically indexes data, making queries efficient.
  • Consistency Levels: Cosmos DB offers different consistency levels, allowing you to choose between strong or eventual consistency depending on your application’s requirements.
  • Security and Compliance: Cosmos DB includes security features like encryption at rest and in transit, as well as compliance certifications.