Question

I have a query

select* from MedicationCombination mc
where mc.MedicationId = 2

And the result of the query is:

Name        Dosage
-----       ------
Med1        12
Med2        14
Med3        16

I want to put this query into a Stored Procedure which will take MedicationId as parameter and return result as:

Name                 Dosage
----                 ------
Med1/Med2/Med3      12/14/16

I want to use this SP in another query which is:

select Id, Category 
from Medication

Result is:

Id      Category
--      --------
1       Psychotropic

I want to use SP in the above query such that the result would be like:

Id  Category         Name                Dosage
--  --------         ----                ------
1   Psychotropic    Med1/Med2/Med3      12/14/16

What could be the possible solutions?

Answer 1

It is not the job of your DBMS to format your data the way you’d like them to look, but the application langage’s. Therefore, query your database with the first query you posted and use whatever language you’re using to format it the way you want.

If you want to make a JOIN with another table, you have to specify conditions. If you’d just like to make a cartesian product, you can use a CROSS JOIN :

SELECT Id, Category, Name, Dosage
FROM MedicationCombination
CROSS JOIN Medication
WHERE MedicationId = 2