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Calcula el primer día deseado de la semana del próximo mes, por ejemplo el primer domingo del próximo mes
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/* Calcula el primer día deseado de la semana del próximo mes, por ejemplo el primer domingo del próximo mes: | |
select primerDomEnProxMes from dbo.fnCalcProxDiaSemEnProxMes(getdate()) | |
*/ | |
CREATE FUNCTION [dbo].[fnCalcProxDiaSemEnProxMes]( | |
@D Datetime | |
) | |
RETURNS @output TABLE(primerDomEnProxMes datetime, primerLunEnProxMes datetime, primerMarEnProxMes datetime, primerMieEnProxMes datetime, primerJueEnProxMes datetime, primerVieEnProxMes datetime, primerSabEnProxMes datetime) | |
BEGIN | |
Declare @Dom TinyInt Set @Dom = 8 | |
Declare @Dom TinyInt Set @Dom = 7 | |
Declare @Lun TinyInt Set @Lun = 8 | |
Declare @Mar TinyInt Set @Mar = 9 | |
Declare @Mie TinyInt Set @Mie = 10 | |
Declare @Jue TinyInt Set @Jue = 11 | |
Declare @Vie TinyInt Set @Vie = 12 | |
Declare @Sab TinyInt Set @Sab = 13 | |
Declare @FONM DateTime -- primeroEnProxMes | |
--Set @D = GETDATE() | |
Set @FONM = DateAdd(Month, 1+DateDiff(Month, 0, @D),0) | |
insert into @output | |
Select | |
DateAdd(day, (@Dom -DatePart(weekday, @FONM))%7, @FONM) primerDomEnProxMes, | |
DateAdd(day, (@Lun -DatePart(weekday, @FONM))%7, @FONM) primerLunEnProxMes, | |
DateAdd(day, (@Mar -DatePart(weekday, @FONM))%7, @FONM) primerMarEnProxMes, | |
DateAdd(day, (@Mie -DatePart(weekday, @FONM))%7, @FONM) primerMieEnProxMes, | |
DateAdd(day, (@Jue -DatePart(weekday, @FONM))%7, @FONM) primerJueEnProxMes, | |
DateAdd(day, (@Vie -DatePart(weekday, @FONM))%7, @FONM) primerVieEnProxMes, | |
DateAdd(day, (@Sab -DatePart(weekday, @FONM))%7, @FONM) primerSabEnProxMes | |
RETURN | |
END |
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