Nz Function and Visual Basic

I'm using Nz function in Access-2000 query without any problem.
But what i want is to use Nz function directly through recordset in Visual Basic. I don't want to use Access Query due to some reasons. I'm using VB-6.0 and ADO. But in this case it's giving me error unrecognized Nz Function. Following is the snippet that i'm using:

dim rs as New ADODB.recordset "select Nz(Sum(qty),0) From Tab1 Where Sno = 5",cn,.....

It's giving error in this statement. What could be the problem. Please help......

thanx and regards,
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Ryan ChongSoftware Team Lead, ex-Business Systems Analyst , ex-Senior Application EngineerCommented:

Select Sum(Qty) From Tab1 Where Qty is Not NULL

Anthony PerkinsCommented:
Please maintain your old open questions:

1 02/04/2003 300 access to shared folders through vb appl...  Open Windows NT Networking
2 09/16/2003 250 Import MS-Access-2000 Data to SQL Server...  Open VB Databases
3 10/02/2003 50 File Field Control  Open JavaScript
4 10/02/2003 150 Multiple Columns With Restricted Detail ...  Open Crystal Reports

Try this:

Select Sum(Qty) From Tab1 Where Qty Is Not NULL AND Sno = 5

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jayakulAuthor Commented:
i've got the solution. The code i've written in the question is just a snippet, I can not use these simple Select Queries with check for Null. I need to have something sort of Nz function only. Following Statement can be used in place of Nz function, becoz Nz can not be used from VB. this i got from some other site....

IIf(IsNull(Sum(Qty)), 0, Sum(Qty))

This works fine. thanx for the sincere efforts. i'm closing this question now.

Anthony PerkinsCommented:
Do you need help closing your old open questions.

No comment has been added lately, so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area that this question is:

- PAQ'd and points refunded

Please leave any comments here within the next four days.


Cleanup Volunteer
PAQed, with points refunded (100)

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Visual Basic Classic

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