Database

Schema of Adbox database

All resource types in aidbox are stored in different tables, named with lowercased resource type name. All this tables have similar schema:

CREATE TABLE "patient" (
id text PRIMARY KEY, // id of resource
txid bigint not null, // version id and logical transaction id
ts timestamptz DEFAULT NOW(), // last updated time
resource_type text, // resource type
status resource_status not null, // resource status
resource jsonb not null // resource body
);

You use DB Console to explore database:

select * from "entity" limit 10

As you see resources are stored as JSONB documents in resource column.

Resources are stored in Aidbox JSON format, which is more friendly for storage and converted on-fly into FHIR in REST API!

You can access attributes of resources using PostgreSQL JSON functions:

SELECT
resource#>>'{name,0,famly}' as last_name,
resource#>>'{name,0,given,0}' as first_name
FROM "patient"
LIMIT 10

Custom Queries

You can define and expose over REST API sophisticated queries in SQL on FHIR data using Custom Queries.

Tutorials

Checkout our video tutorial about SQL on FHIR in PostgreSQL: