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Undefined function 'IsDBNull' in expression

Posted on 2004-03-24
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Last Modified: 2006-11-17
I have a sql statement that pulls data from ms access db if the date in the table is null or greater or equals to today's date.
I am converting asp to asp.net. In my WHERE clause I had
WHERE  (isNull(endDate)  OR endDate >= Date())

after converting to .net I got

WHERE (IsDBNull(endDate) OT endDate >= DateTime.Now)

But now I'm getting an error Undefined function 'IsDBNull' in expression.

I mported System.DBNull.
What am I doing wrong?
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Question by:YZlat
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3 Comments
 
LVL 9

Expert Comment

by:msdixon
ID: 10669195
if this is from a sql statement change it back to isnull.

if this is vb code you can use
endDate = DBNull.Value

to see if a value is null
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Author Comment

by:YZlat
ID: 10669314
where do I put this line endDate = DBNull.Value?
in my sql statement?


I have "SELECT * FROM Table1 WHERE (IsDBNull(endDate) OT endDate >= DateTime.Now)"
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Accepted Solution

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dante469 earned 50 total points
ID: 10669393
The WHERE clause will run on the SQL server and must use SQL syntax...

Depending on your version of SQL that may change however this will work on SQL 6.5 or above..

           WHERE  ((endDate Is Null)  OR endDate >= GetDate() )

Have Fun,
Dante
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