finding if Each Value from column A exists in column B. Returns duplicate records.

[kaustubh]

Dear All,

Problem 1) I wish to find if NPI numbers of physicians of XYZ organisation exist in their database. There is a table which contains list of all the physicians that work in XYZ. If my referring provider belongs to XYZ then I must put value "XYZ physician" in column C else I must put "Outsider". I have written below code in front end (Set Analysis).

=if([Ordering Provider NPI] = [XYZ Provider NPI], 'XYZ Physician','Unkown').

My SS shows table that is displaying in my qlik sense sheet. Here you see that I get same physician repeated twice as "XYZ Physician" as well as "Unknown". The columns are as below:

Name of Physician             Cred.                 Ordering Code             XYZ Physician/Outsider

Can someone help me know why this duplicate record is generated for almost all the physicians? What is it that i am doing wrong? Kindly Guide ! Thank you !

[Marcos_rv]

try making a table with the medical fields, the keys that you added in the image and the field [Ordering Provider NPI], I'm almost sure that you should have a null here,
in your main table you should have records 1 to 1, probably an error in the join.

If you can pass us an example or part of the app with reduced data, we would be better.
Regards!!!

[kaustubh]

Dear Marcos,

There is no Join between two tables of "XYZ_Providers" and "Ordering provider". It is just that provider's NPI from Ordering Provider Tables is lookup into list of XYZ_Providers Table having single column NPI as they are unique.

1.)SS1 of data model. I have checked my SQL Database. Both the tables have single record for particular NPI numbers indicating Uniqueness. yes there are some nulls in NPI column but as I am not joining tables would they still be a problem? because such nulls should anyways be treated as 'unknown'.