I have a query with the following fields cost, AccDpr, Disposal and NBV, what i want to do is to returned NBV to zero when their is any value i.e amount in disposal field. The NBV formula = [cost]-[Accdpr]. Pls Help
I see. Thank you.
Just change the Formula to: - = IIf([Disposal] Is Not Null, 0, [cost]-[Accdpr])
Hope this hepps!
10  1520 
Mafi,
My first advice to you is that you should never have a calculated field as part of a table. The MBV value should always be calculated in the query or report that uses the other three values. This eliminates your current concerns, and the MBV value will always be current and accurate.
Hope this hepps!
All my calculated fields are in query not part of table.
NeoPa 32,556
Expert Mod 16PB
Is this as simple as saying : - IIf([Disposal]=0,0,[Cost]-[AccDpr]) AS [NBV]
I see. Thank you.
Just change the Formula to: - = IIf([Disposal] Is Not Null, 0, [cost]-[Accdpr])
Hope this hepps!
And NeoPa and I think alike!
Twinnyfo u get it right but i did a little modification to work perfectly for me. = IIf([Disposal] Is Null, 0, [cost]-[Accdpr]). Thanks.
But I thought that if there was a value in Disposal, that NBV was set to 0? Your formula says the opposite, that if Disposal is empty, NBV is 0.
Neopa thank you also for ur contribution.
NeoPa 32,556
Expert Mod 16PB
Interesting. So, when you say "When [Disposal] has no value" you actually mean when there is no value set, rather than when the value is zero (0). That's a hard concept to express clearly so it's understandable you left us confused. Mafi:
what i want to do is to returned NBV to zero when their is any value i.e amount in disposal field.
If your adjusted code is what you want then your original question was back-to-front. As such, Twinny's answer was perfect and I'll set it as Best Answer. That doesn't mean you have to use it directly, but anyone else looking for a solution to a similar question will find his answer most helpful.
NeoPa 32,556
Expert Mod 16PB Mafi:
Neopa thank you also for ur contribution.
My pleasure. If I'd understood you better I'd have given you the same solution Twinny did, but they were both close enough to work from. Glad you're sorted :-)
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