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How to set Oracle date to null with ODBC?

Posted on 2002-07-05
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Last Modified: 2008-03-17
Does anyone know how to set an Oracle date field to null using ODBC?  

My code statement is the following:
rs.Fields("BillingDate") = IIf(IsNull(Me.txtBillingDate), Null, Trim(Me.txtBillingDate))

I get an error everytime it gets executed.  The Errors collection returns that there was a data type mismatch.   I have read articles that say that you can't assign an Oracle date the null value using ODBC.  However, I have some older code examples where I was able to do this.  Not sure why it isn't working now.  

I don't want to have to use SQLPassThrough queries (Insert, Update statements) because of the time involved.

Any ideas?
Thanks.
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Question by:mnord
4 Comments
 

Author Comment

by:mnord
ID: 7132284
I am using VB6 with DAO and Oracle 8i.
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LVL 75

Accepted Solution

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Anthony Perkins earned 400 total points
ID: 7133250
Try this:
rs.Fields("BillingDate") = IIf(Len(Trim$(Me.txtBillingDate)) = 0 , Null, Trim(Me.txtBillingDate))

Or better still (easier to read):

Dim sBillingDate As String

SBillingDate = Trim$(Me.txtBillingDate)
If Len(sBillingDate) Then
   rs.Fields("BillingDate").Value = sBillingDate
Else
   rs.Fields("BillingDate").Value = Null
End if

Anthony
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LVL 49

Expert Comment

by:DanRollins
ID: 7990736
Hi mnord,
It appears that you have forgotten this question. I will ask Community Support to close it unless you finalize it within 7 days. I will ask a Community Support Moderator to:

    Accept acperkins@devx's comment(s) as an answer.

mnord, if you think your question was not answered at all or if you need help, just post a new comment here; Community Support will help you.  DO NOT accept this comment as an answer.

EXPERTS: If you disagree with that recommendation, please post an explanatory comment.
==========
DanRollins -- EE database cleanup volunteer
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Expert Comment

by:SpideyMod
ID: 8053108
per recommendation

SpideyMod
Community Support Moderator @Experts Exchange
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