The document discusses SQL and NoSQL databases, comparing SQL and MongoDB. It introduces SQL and relational database management systems (RDBMS), then covers what NoSQL is and why it was developed. Key differences between SQL and NoSQL are outlined. MongoDB is introduced as a leading NoSQL database, explaining its schema-less and document-oriented structure and auto-sharding for scalability. The Bottle framework is also briefly described as a lightweight Python web framework. References are provided for further reading.