All pastes #262568 Raw Edit

Someone

public sql v1 · immutable
#262568 ·published 2006-11-30 18:01 UTC
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select N.omschrijving AS Niveau, N.Niveaucode, count(*) AS Aantalfrom Niveau N INNER JOIN Stuk S ON N.niveaucode = S.niveaucodeWHERE genrenaam = 'klassiek'GROUP BY N.niveaucode, N.omschrijving/* ---------------Returns:Niveau          Niveaucode   Aantalbeginners	A	     1gevorderden	B	     3---------------I want it to return:Niveau          Niveaucode   Aantalbeginners	A	     1gevorderden	B	     3experts         C            0*/