BEGIN
    -- get department:
    BEGIN
        SELECT <field_name>
        FROM   <department_table>
        INTO   :<FORMS_BLOCKNAME>.<FORMS_ITEMNAME>
        WHERE  id = <your_conditions>;
    -- optionally you may define a exception to get no errors
    -- if no department is found:
    EXCEPTION
        WHEN NO_DATA_FOUND THEN
             -- do nothing:
             NULL;
    END;
    -- get country:
    BEGIN
        SELECT <field_name>
        FROM   <country_table>
        INTO   :<FORMS_BLOCKNAME>.<FORMS_ITEMNAME>
        WHERE  id = <your_conditions>;
    EXCEPTION
        WHEN NO_DATA_FOUND THEN
             -- do nothing:
             NULL;
    END;
    -- get other data: 
    -- ...
    -- ...
    -- ...
END;