Access 97, I have a query which is giving me the run around. I am 
querying two tables, but I need to return MW's if the refPlantMain is 
Null.

Able:  IIf([refPlantMain].[PlantCapacity]<[Main].[MW],[refPlantMain].
[PlantCapacity],[Main].[MW])

Now this query returns Plant Capacity if Main table MW number is larger 
that Plant Capacity, but if it is not then it returns MW from the Main 
table.  But I need it to return the Main .MW if the Plant Capacity 
is "0"(Null).

Thank you 

Hi Kenneth, try this

Able:  IIf([refPlantMain].[PlantCapacity]< [Main].[MW] Or
([refPlantMain].[PlantCapacity] = "0",[refPlantMain].
[PlantCapacity],[Main].[MW])

Regards, Wesley Kendrick

----- Original Message -----
From: "KennethMungwira" <KennethMungwira@y...>
To: "Access" <access@p...>
Sent: Thursday, October 31, 2002 3:46 PM
Subject: [access] Query Builder


> Access 97, I have a query which is giving me the run around. I am
> querying two tables, but I need to return MW's if the refPlantMain is
> Null.
>
> Able:  IIf([refPlantMain].[PlantCapacity]<[Main].[MW],[refPlantMain].
> [PlantCapacity],[Main].[MW])
>
> Now this query returns Plant Capacity if Main table MW number is larger
> that Plant Capacity, but if it is not then it returns MW from the Main
> table.  But I need it to return the Main .MW if the Plant Capacity
> is "0"(Null).
>
> Thank you
>

<Original message>
Able:  IIf([refPlantMain].[PlantCapacity]<[Main].[MW],[refPlantMain].
[PlantCapacity],[Main].[MW])

Now this query returns Plant Capacity if Main table MW number is larger
that Plant Capacity, but if it is not then it returns MW from the Main
table.  But I need it to return the Main .MW if the Plant Capacity
is "0"(Null).

<response>
Try

IIf([refPlantMain].[PlantCapacity] = 0 or IsNull
([refPlantMain].[PlantCapacity]),
[Main].[MW],
IIf([refPlantMain].[PlantCapacity]
<[Main].[MW],[refPlantMain].[PlantCapacity],
[Main].[MW]))


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