Querying an openEHR CDR with SQL, Cypher, and GraphQL? Yes, it’s possible.
If you work with openEHR, you already know Archetype Query Language (AQL). It’s a brilliant technical achievement designed specifically for hierarchical health data.
But let’s be honest: most developers and analysts outside the openEHR ecosystem have never heard of it. When onboarding new engineers to a health tech project, teaching them AQL from scratch is a massive bottleneck. Usually, they have to write or look at something like this just to get blood pressure data:
What if you could build an openEHR Clinical Data Repository (CDR) but let your team use the technologies they already know? You can even treat the CDR as a PostgreSQL database.
By leveraging ArcadeDB, we can enable polyglot querying over openEHR data structures. Your developers and analysts can pick the exact query language that fits their background: