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How do I write this in DAX?


How do I write this in DAX?

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pietlinden
pietlinden
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Say I have a really simple fact table

CREATE TABLE FactSymptom (
PatientID INT,
Symptom VARCHAR(20),
Grade TINYINT,
ConsentDate DATE
);


and I have the following dimensions: Patient, Symptom, Calendar.

I can find all the Patients that have Symptoms A and B in SQL really easily...

SELECT PatientID
FROM FactSymptom
WHERE Symptom = 'A'
INTERSECT
SELECT PatientID
FROM FactSymptom
WHERE Symptom = 'B';



How do I do something like this in DAX?

It looks like I could do it with
INTERSECT(FILTER('FactSymptom',[Symptom]='A'),FILTER('FactSymptom',[Symptom]='B')) 


but it returns no rows... Is there a way to project just the PatientID?
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