USE [Vertragsverwaltung_20160404]
GO
/****** Object:  UserDefinedFunction [dbo].[get_monatstabelle]    Script Date: 02.12.2016 09:08:53 ******/
DROP FUNCTION [dbo].[get_monatstabelle]
GO
/****** Object:  UserDefinedFunction [dbo].[get_monatstabelle]    Script Date: 02.12.2016 09:08:55 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO



-- =============================================
-- Author:          <Author,,Name>
-- Create date: <Create Date,,>
-- Description:     <Description,,>
-- =============================================
CREATE FUNCTION [dbo].[get_monatstabelle](@from AS DATETIME, @to AS DATETIME)
   RETURNS @Dates TABLE(start_date DATETIME, End_Date datetime)
AS
BEGIN
   DECLARE @st DATETIME
   DECLARE @ed DATETIME 

   WHILE @from < @to BEGIN
      SELECT @st=DATEADD(MONTH, DATEDIFF(MONTH, 0, @from), 0)
         SELECT @ed=DATEADD(DAY, -1, DATEADD(MONTH, DATEDIFF(MONTH, 0, @from) + 1, 0)) 
         SET @ed=DATEADD(HOUR,23,@ed)
         SET @ed=DATEADD(MINUTE,59,@ed)
         SET @ed=DATEADD(SECOND,45,@ed)

         INSERT @dates (start_date, end_date) VALUES(@st, @ed)
         SET @from = DATEADD(MONTH, 1,@from)
   end
  RETURN
END




GO