Using IIf In Query Criteria & Multiple Table Expression

Hi everyone,

My query is coming along nicely, but as always once one problem is solved you find another :rolleyes: !

My problem is that I have thus far specified criteria for the field OrdDeliveryCountry, but this field is not filled in unless the delivery address is different from the default address for the customer, therefore it is frequently blank and so the query wasn't finding all records, only those where the Delivery Address was specific to the order.

I want to use the IIf function to make an expression to say (in linguistic terms):
If OrdDeliveryCountry is blank, then use the country in the Customers table.

Sounds simple enough, but the criteria currently is:
WHERE (((ORDERS.ORDDELIVERYCOUNTRY) = "Austria"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Belgium"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Cyprus"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Czech Republic"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Denmark"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Estonia"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Finland"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "France"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Germany"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Greece"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Hungary"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Ireland"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Italy"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Latvia"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Lithuania"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Luxembourg"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Malta"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Holland"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Poland"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Portugal"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Slovakia"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Slovenia"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Spain"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Sweden")
AND ((PRODUCTS.PRODUCTNAME) NOT LIKE "*Upgrade"
AND (PRODUCTS.PRODUCTNAME) NOT LIKE "*Repair"
AND (PRODUCTS.PRODUCTNAME) NOT LIKE "*Rpr"
AND (PRODUCTS.PRODUCTNAME) NOT LIKE "*Commission")
AND ((ORDERS.[DEMO/SALEID]) = 2))


So how do I combine the IIf(expr,truepart,falsepart) with "Is Not x Or x Or x"?I.E. I need to get it to exclude records where OrdDeliveryCountry does not equal one in the list, and if that is blank then the Country field in the Customers table does not equal one in the list?

My attempt is this, but I think I'm way off the mark

SELECT ORDERS.SHIPDATE,
PRODUCTS.[STANDARD TARRIFF NUMBER],
[ORDER DETAILS].[QUANTITY] * [ORDER DETAILS].[UNITPRICE] * (1 - [DISCOUNT]) * (1 - [SPECIAL DISCOUNT]) AS LINETOTAL,
[ORDER DETAILS].QUANTITY,
ORDERS.ORDDELIVERYCOUNTRY,
ORDERS.ORDERID,
[ORDER DETAILS].PRODUCTID
FROM CUSTOMERS
RIGHT JOIN (PRODUCTS
RIGHT JOIN (ORDERS
LEFT JOIN [ORDER DETAILS]
ON ORDERS.ORDERID = [ORDER DETAILS].ORDERID)
ON PRODUCTS.PRODUCTID = [ORDER DETAILS].PRODUCTID)
ON CUSTOMERS.CUSTOMERID = ORDERS.CUSTOMERID
WHERE (((ORDERS.ORDDELIVERYCOUNTRY) = IIF(ISNULL([ORDERS]![ORDDELIVERYCOUNTRY]),([CUSTOMERS]![COUNTRY] NOT LIKE "Austria"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Belgium"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Cyprus"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Czech Republic"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Denmark"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Estonia"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Finland"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "France"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Germany"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Greece"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Hungary"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Ireland"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Italy"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Latvia"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Lithuania"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Luxembourg"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Malta"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Holland"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Poland"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Portugal"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Slovakia"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Slovenia"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Spain"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Sweden"),
(([ORDERS]![ORDDELIVERYCOUNTRY]) NOT LIKE "Austria"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Belgium"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Cyprus"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Czech Republic"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Denmark"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Estonia"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Finland"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "France"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Germany"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Greece"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Hungary"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Ireland"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Italy"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Latvia"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Lithuania"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Luxembourg"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Malta"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Holland"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Poland"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Portugal"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Slovakia"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Slovenia"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Spain"
OR (ORDERS.ORDDELIVERYCOUNTRY) = "Sweden")))
AND ((PRODUCTS.PRODUCTNAME) NOT LIKE "*Upgrade"
AND (PRODUCTS.PRODUCTNAME) NOT LIKE "*Repair"
AND (PRODUCTS.PRODUCTNAME) NOT LIKE "*Rpr"
AND (PRODUCTS.PRODUCTNAME) NOT LIKE "*Commission")
AND ((ORDERS.[DEMO/SALEID]) = 2))
ORDER BY ORDERS.SHIPDATE DESC;

My thoughts:

Maybe I need to re-structure the WHERE clause?
Would it work if the IIf expresssion was in the SELECT part not the WHERE part?


I would really appreciate some help with this: I'm not sufficiently familiar with structuring statements as complex as this and I don't know all the syntax rules etc.

Thanks in advance!!