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.
Corresponds to EhP8 SP25 Main new features: (1) Support of patient-merged event and messaging (2) Support XML as serialization format for the FHIR resources (3) Enhanced extension support by nested data types and by data type period, coding and codeableConcept (4) Enhanced BAdI support for inbound extensibility
more see here: https://help.sap.com/viewer/product/SAP_FOR_HEALTHCARE/
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