FQL is a query language that allows you to retrieve, filter and project data from any data source containing FHIR Resources. It brings the power of three existing languages together: SQL, JSON and FhirPath. It allows you to create tables and is useful for gaining insight and perform quality control.
<Observation xmlns="http://hl7.org/fhir"> <id value="s4h-blood-group-observation-example" /> <meta> <profile value="http://fhir.smart4health.eu/StructureDefinition/s4h-observation-base" /> </meta> <status value="final" /> <category> <coding> <system value="http://terminology.hl7.org/CodeSystem/observation-category" /> <code value="laboratory" /> <display value="Laboratory" /> </coding> <text value="Laboratory" /> </category> <code> <coding> <system value="http://loinc.org" /> <code value="883-9" /> <display value="ABO group [Type] in Blood" /> </coding> <text value="Blood group" /> </code> <subject> <display value="Marie Lux-Brennard" /> </subject> <effectiveDateTime value="2019-09-17" /> <performer> <identifier> <use value="official" /> <system value="http://fhir.de/NamingSystem/kbv/lanr" /> <value value="123456701" /> </identifier> <display value="Dr. Schmidt" /> </performer> <valueCodeableConcept> <coding> <system value="http://loinc.org" /> <code value="LA19710-5" /> <display value="Group A" /> </coding> <text value="Group A" /> </valueCodeableConcept> </Observation>