Only functions and extended stored procedures can be executed from within a function.

Hola buenos días,

Estoy tratando de ejecutar una función en sql server 2005 de está manera:

alter function [dbo].[CONCATENA_TELEFONOS_REUTILIZABLES] (@cedula varchar(10),@pais varchar(20),@cantidad_telefonos varchar(5))

RETURNS varchar(250) AS

BEGIN

declare @sentencia nvarchar(1000),

@Param nvarchar(250),

@xResul nvarchar(250)

set @xResul=''

set @sentencia = 'select @retvalue = @retvalue+''0''+ltrim(rtrim(isnull(cod_area,'''')))+''-''+ltrim(rtrim(isnull(numero,'''')))+'',''

from (select top ' + @cantidad_telefonos + ' cod_area,numero from latinlists' + @pais + '..telefonos t where t.cedula= ''' + @Cedula + ''' order by confiabilidad) AS TEMP'

set @Param = N'@retvalue varchar(500) output'

exec sp_executesql @sentencia,@Param,@retvalue=@xResul output

if len(@xResul)>1

set @xResul=substring(@xResul,1,len(@xResul)-1)

return @xResul