Data Base Technologies
Use: A self-contained, high-reliability, embedded, full-featured, public-domain SQL database engine.
Language: SQL
OS: Cross-platform
Use: An open-source, in-memory data structure store, used as a database, cache, and message broker.
Language: Various (C, Python, Java, etc.)
OS: Cross-platform
Use: A relational database management system developed by Microsoft.
Language: SQL
OS: Cross-platform (Windows, Linux)