En el acceso, he estado tratando de configurar filtros de usuario en lo que se muestra en un subformulario que es una lista de inspección. Otros métodos que he intentado investigar no han funcionado, pero tengo éxito con el código a continuación. Filtrará si un usuario llena alguna otra opción de filtro. Lo que puedo entender es cómo hacer que acepte múltiples filtros a menos que especifique todas las combinaciones posibles de cuadros

Entonces, ¿hay alguna forma de que esto sea realmente posible o necesito ver otras opciones?

WHERE [STATUS] = "OPEN" 
AND 
(ANY FORM FILTERS is not Null [Filter by all those that are not null to its matching column])

efectivamente, ¿hay alguna manera fácil de incluir una condición si un filtro de formulario no es nulo?

SELECT Inspections.INS_ID
    ,Inspections.Category
    ,Inspections.Assigned_Officer
    ,Inspections.Raised_For
    ,Inspections.Account
    ,Inspections.Number
    ,Inspections.Street
    ,Inspections.Area
    ,Inspections.Postcode
    ,Inspections.Date_Raised
    ,Inspections.Reason
    ,Inspections.INS_Comments
FROM Inspections
WHERE (
        ((Inspections.STATUS) = "Open")
        AND (([Forms]![Manage_Open]![Filter_ID]) IS NULL)
        AND (([Forms]![Manage_Open]![Filter_account]) IS NULL)
        AND (([Forms]![Manage_Open]![Filter_officer]) IS NULL)
        AND (([Forms]![Manage_Open]![Filter_Number]) IS NULL)
        AND (([Forms]![Manage_Open]![Filter_Postcode]) IS NULL)
        AND (([Forms]![Manage_Open]![Filter_Category]) IS NULL)
        AND (
            (([Forms]![Manage_Open]![Filter_From]) IS NULL)
            AND (([Forms]![Manage_Open]![Filter_To]) IS NULL)
            )
        )
    OR (
        ([Forms]![Manage_Open]![Filter_ID]) IS NOT NULL
        AND ([Forms]![Manage_Open]![Filter_ID]) = [Inspections].[INS_ID]
        )
    OR (
        ([Forms]![Manage_Open]![Filter_account]) IS NOT NULL
        AND ([Forms]![Manage_Open]![Filter_account]) = [Inspections].[Account]
        )
    OR (
        ([Forms]![Manage_Open]![Filter_officer]) IS NOT NULL
        AND ([Forms]![Manage_Open]![Filter_officer]) = [Inspections].[Assigned_Officer]
        )
    OR (
        ([Forms]![Manage_Open]![Filter_Number]) IS NOT NULL
        AND ([Forms]![Manage_Open]![Filter_Number]) = [Inspections].[Number]
        )
    OR (
        ([Forms]![Manage_Open]![Filter_Postcode]) IS NOT NULL
        AND ([Forms]![Manage_Open]![Filter_Postcode]) = [Inspections].[Postcode]
        )
    OR (
        ([Forms]![Manage_Open]![Filter_Category]) IS NOT NULL
        AND ([Forms]![Manage_Open]![Filter_Category]) = [Inspections].[Category]
        )
    OR (
        (
            (([Forms]![Manage_Open]![Filter_From]) IS NOT NULL)
            AND (([Forms]![Manage_Open]![Filter_To]) IS NOT NULL)
            )
        AND ([Inspections].[Raised_For]) BETWEEN (
                    ([Forms]![Manage_Open]![Filter_From])
                    AND ([Forms]![Manage_Open]![Filter_to])
                    ) )
        );