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(VB DBF) Updating Blank Date in recordset

Posted on 2001-08-20
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Last Modified: 2011-09-20
I need to know how to update a date in a FoxPro recordset to be blank. I keep receiving an error stating that the column is not-nullable. The option for Null values is set to 'Yes' in the connection. So, how can I assign a empty or null value to a field in a recordset??? I don't have any problem using an Access database, but for compatibility issues, I have to use dbf files.


Thanks in advance.


Miguel
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Question by:msuarez
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5 Comments
 
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Expert Comment

by:arana
ID: 6406965
try updating from an empty VARIANT variable, that may help you do what you what. or set your date to the "NULL DATE VALUE" wich i think it is jan-1-1899 or something like that (actually "1" is the integer value)
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Expert Comment

by:MelissaEvans
ID: 6406972
How are you attempting the update?  Are you setting the field to "" (a zero length string)?  Have you tried executing a SQL statement that specifically set it to null?  You said that the "option for Null values is set to 'Yes' in the connection."  Are you using ADO or DAO?  Is the Allow Null set in the table schema itself?  

Sorry 'bout bombarding you with more questions.
~Melissa
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arana earned 400 total points
ID: 6406996
try using:

12 AM (Midnight) on 12/30/1899 (which actually is zero for the date data type.)
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Author Comment

by:msuarez
ID: 6407179
Arana,

It worked just fine. Thank you.

But just out of curiosity. What happens if you have to use that specific date?



Miguel
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LVL 11

Expert Comment

by:arana
ID: 6413758
well then it will be stored and retrieved as that specific date without problem.
(the problem comes when you try to use a date BEFORE that)

never tried, will be fun.
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