PostgreSQL
A free database that stores information in connected tables, with rules that prevent contradictions.
What is PostgreSQL, and why is it used in stores and management systems?
PostgreSQL, or Postgres, is an open-source relational database. It stores information in tables linked to each other, like customers and orders, and lets you write rules right inside the database itself, for example "stock can never go negative," that hold even if the program using it fails.
Its operations are transactional: a group of changes either saves completely or doesn't save at all. Several cloud services, like Supabase or Neon, offer Postgres ready to use out of the box.
Why it matters to your business
When money is on the line, it helps to have the database itself block the most expensive mistakes. With Postgres, a rule like never selling more than what exists lives inside the database itself and protects the business even if the site has a bug.
How we use this at Damorus
At URG Technology, we use PostgreSQL 15 on Supabase, with atomic reservations: when someone reserves a computer, the server locks that record for an instant and checks how many units are left, and a rule stops reservations from exceeding what actually exists. La Roca stores its analytics events in Postgres on Neon, a serverless database that scales down to zero when there's no traffic. At Atlantic Center, every record syncs as a document in Supabase's Postgres database.
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