developer-roadmap/roadmaps/machine-learning/content/databases-sql-no-sql@VdMhrAi48V-JXw544YTKI.md

Databases (SQL, No-SQL)

Databases are organized collections of data, stored and accessed electronically. SQL databases, like MySQL or PostgreSQL, use a structured, table-based format with a predefined schema, enforcing relationships between data through keys. NoSQL databases, such as MongoDB or Cassandra, offer more flexible data models like document, key-value, or graph, allowing for unstructured or semi-structured data and often prioritizing scalability and speed over strict consistency.

Visit the following resources to learn more:

• @article@Types of Databases: Relational, NoSQL, Cloud, Vector
• @article@Types of Databases - MongoDB