NoSQL Database Design & Data Modeling

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title: NoSQL Database Design & Data Modeling
path: nosql/database-design-data-modeling.md

Source: https://www.mongodb.com/nosql-explained/data-modeling

Schema Design for NoSQL Databases

• NoSQL databases are designed to store data that does not have a fixed structure.
• Fundamental property: the need to optimize data access.
• How users will query the data and how often.
• How often will data be updated?

NoSQL Data Modeling

• Each of the 4 main types of NoSQL databases is based on a specific way of storing data.
• Document Store: Data and metadata are stored hierarchically in JSON-based documents inside the database. (query language)
• Key Value Store: The simplest of the NoSQL databases, data is represented as a collection of key-value pairs. (direct request method)
• Wide-Column Store: Related data is stored as a set of nested-key/value pairs within a single column. (direct language)
• Graph Store: Data is stored in a graph structure as node, edge, and data properties. (specialized query language)