OUTER APPLY
:SELECT Stuff.id
,Results.pn
,Results.s
FROM stackoverflow_454945 AS Stuff
OUTER APPLY dbo.Split(',', Stuff.myColumn) AS Results
WHERE ISNULL(Results.s,'') <> ''
OUTER APPLY
:SELECT Stuff.id
,Results.pn
,Results.s
FROM stackoverflow_454945 AS Stuff
OUTER APPLY dbo.Split(',', Stuff.myColumn) AS Results
WHERE ISNULL(Results.s,'') <> ''