I have a list of claim numbers and I want to add a ranking column that changes when there is a new claim number.
If the claim number is the same, I want the ranking to go up by 1, but when there is a new claim number, I want the ranking to start over
I tried this but it just inserted 1 for every line
please help
SELECT
Inst.[Encounter Control Number],((Select Count(*) from Inst Where [Encounter Control Number] = [Encounter Control Number];)+1) AS Rank
FROM Inst order by [Encounter Control Number] ;