ADO.NET Provider for FHIR

Build 24.0.9029

JOIN Queries

The CData ADO.NET Provider for FHIR supports standard SQL joins like the following examples.

Inner Join

An inner join selects only rows from both tables that match the join condition:

SELECT c.[name-given], c.[address-city], o.status, o.id FROM Patient c INNER JOIN SupplyDelivery o ON o.[patient-reference] = ('Patient/' + c.[id] )

Left Join

A left join selects all rows in the FROM table and only matching rows in the JOIN table:

 SELECT c.[name-given], c.[address-city], o.status, o.id FROM Patient c LEFT JOIN SupplyDelivery o ON o.[patient-reference] = ('Patient/' + c.[id] )

Copyright (c) 2024 CData Software, Inc. - All rights reserved.
Build 24.0.9029