Planning a large sampling campaign or clinical study? Store your primary data in a relational database to ensure consistency, accessibility, and straightforward downstream analysis. We can program a PostgreSQL database according to your specifications. PostgreSQL is a powerful, open source object-relational database system. It has more than 15 years of active development and runs on all major operating systems, including Linux, macOS, and Windows. We provide you with clear input masks in LibreOffice Base, which even non-experts can handle safely. All components are free software, so you do not need to worry about license fees.