March 22, 2006 at 7:56 am
Hi, recently I needed to pass some null value as parameteres to a DateTime field, I was using SQL Server 2k and C# VS 2003.
I tried using DBNull and others values but none fo them worked for me.
What I did at the end was to set a default value of null in the database field, and didn't pass the parameter when I didn't have it, of course it added a little bit of logic when building the query.
Is there anyway to pass null value in the param???
Kindest Regards,
@puy Inc
November 9, 2007 at 7:22 am
To pass in a null to some stored procs (with older Vb6/ADO code) you can do this:
1) The VB code puts 1/1/1900 in the date and the proc converts it to null.
2) the proc code is shown below.
...
set @NullDate = convert(smalldatetime, '1/1/1900')
if @aTestTime =@NullDate set @aTestTime = null
...
Then your insert/update statement in the proc uses @aTestTime normally and this will put a null in the date field.
For our other code that generates insert and update statements just use null as you would in query analyzer.
Good luck
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