DECLARE @Id INT = (SELECT MAX([ID]) FROM [IdentNr_Gruppendetail]);

INSERT INTO [IdentNr_Gruppendetail] ([ID], [Name])
OUTPUT [Inserted].[ID], [Inserted].[Name]
SELECT ROW_NUMBER() OVER(ORDER BY [Name]) + @Id			AS [ID]
	 , [Gruppendetail].[Name]							AS [Name]
  FROM (SELECT DISTINCT [IdNrName].[Name]
		  FROM (SELECT [Identnr].[IdentNr]
					 , [Identnr].[Typ]
					 , 'WSD '
					 + CASE WHEN [Identnr].[Nennweite] IS NOT NULL THEN CAST([Identnr].[Nennweite] AS VARCHAR) ELSE '0' END
					 + ' / '
					 + CASE WHEN [Identnr].[Temperatur] IS NOT NULL THEN CAST([Identnr].[Temperatur] AS VARCHAR) ELSE '0' END
					 + '°' AS [Name]
				  FROM [Identnr]
				 WHERE [Typ] LIKE '%WSD%')
			AS [IdNrName]
		  LEFT JOIN [IdentNr_Gruppendetail] ON [IdentNr_Gruppendetail].[Name] = [IdNrName].[Name]
		 WHERE [IdentNr_Gruppendetail].[ID]   IS NULL)
	AS [Gruppendetail]

   SET @Id = (SELECT MAX([ID]) FROM [IdentNrGruppierung]);
   SET IDENTITY_INSERT [IdentNrGruppierung] ON;
INSERT INTO [IdentNrGruppierung] (
			[IdentNr]
		  , [GruppenID]
		  , [ID])
SELECT [MissingIdentNr].[IdentNr]
	 , [MissingIdentNr].[GruppenID]
	 , [MissingIdentNr].[ID]
  FROM (SELECT [IdentNrNames].[IdentNr]										AS [IdentNr]
			 , [IdentNr_Gruppendetail].[ID]									AS [GruppenID]
			 , ROW_NUMBER() OVER(ORDER BY [IdentNrNames].[IdentNr]) + @Id	AS [ID]
		  FROM (SELECT [Identnr].[IdentNr]
 					 , [Identnr].[Typ]
 					 ,'WSD '
 					 + CASE WHEN [Identnr].[Nennweite] IS NOT NULL THEN CAST([Identnr].[Nennweite] AS VARCHAR) ELSE '0' END
 					 + ' / '
 					 + CASE WHEN [Identnr].[Temperatur] IS NOT NULL THEN CAST([Identnr].[Temperatur] AS VARCHAR) ELSE '0' END
 					 + '°' AS [Name]
				  FROM [Identnr]
				 WHERE [Typ] LIKE '%WSD%')
			AS [IdentNrNames]
		  LEFT JOIN [IdentNr_Gruppendetail] ON [IdentNr_Gruppendetail].[Name]	= [IdentNrNames].[Name]
		  LEFT JOIN [IdentNrGruppierung]	ON [IdentNrGruppierung].[IdentNr]	= [IdentNrNames].[IdentNr]
		 WHERE [IdentNrGruppierung].[IdentNr] IS NULL )
	AS [MissingIdentNr]
   SET IDENTITY_INSERT [IdentNrGruppierung] OFF;

SELECT [IdentNrGruppierung].[IdentNr]		AS [IdentGroupirungNr]
	 , [Identnr].[IdentNr]
	 , [Identnr].[KurzBez]
     , [Identnr].[Typ]
     , [Identnr].[Nennweite]
     , [Identnr].[Temperatur]
     , [Identnr].[Druck]
     , [Identnr].[Baulaenge]
	 , [IdentNr_Gruppendetail].[Name]
	 , [IdentNr_Gruppendetail].[ID]			AS [IdNrGruppenDetailId]
     , [IdentNrGruppierung].[GruppenID]		AS [IdentNrGruppierungGruppenId]
	 , [IdentNrGruppierung].[ID]			AS [IdentNrGruppierungId]
	 , [Identnr].[AnlageDatum]
  FROM [Identnr] 
  LEFT JOIN [IdentNrGruppierung]	ON [IdentNrGruppierung].[IdentNr]	= [Identnr].[IdentNr]
  LEFT JOIN [IdentNr_Gruppendetail]	ON [IdentNr_Gruppendetail].[ID]		= [IdentNrGruppierung].[GruppenID]
 WHERE [Identnr].[Typ] LIKE '%WPD%'
    OR [Identnr].[Typ] LIKE '%WPF%'
    OR [Identnr].[Typ] LIKE '%WSD%'
 ORDER BY [Identnr].[AnlageDatum] DESC