A database is an organized collection of structured information or data, typically stored electronically in a computer system. A database is usually controlled by a database management system (DBMS).
Types of databases
Relational databases
Data is organized into tables with rows and columns, linked by relationships. You query them with SQL.
- PostgreSQL — Open-source, feature-rich relational database.
- MySQL — Widely used open-source relational database.
Analytical databases (OLAP)
Optimized for fast read queries over large datasets.
- ClickHouse — Column-oriented database for real-time analytics.
- BigQuery — Google's managed analytical database.
- Snowflake — Cloud data warehouse.
Connecting to Sequel
Sequel connects to your existing databases — you don't need to migrate your data. Just provide your connection string and Sequel handles the rest. See the documentation for step-by-step guides.