I want to prevent the default value of 1/1/1900 from beign inserted into the date field in the table

How do I change this value to NULL?
I tried this but didn't work

Any suggestion will help

If sTHE_DATE="" Then
End If

sql to update.....................

Who is Participating?
hongjunConnect With a Mentor Commented:
Ok. Does the field allow NULL field? If yes you can insert a NULL field for that. Note that NULL is allowed but the string "NULL" is not allowed.

Try this

sTHE_DATE = Request.Form("THE_DATE")
If sTHE_DATE = "" Then
    strSQL = "update your_table set your_date = null"
    strSQL = "update your_table set your_date = '" & sTHE_DATE & "'"
End If


Make sure that the field is not set to be the default date when this table is created. Also make sure that this field allows NULL values.

iyiolaAuthor Commented:
The field allows default values.
The problem is that SQL server is not taking "NULL" cos  the datatype is datetime

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I think a CASE expression embedded into your UPDATE SQL is a possibility. I'm not sure of the exact syntax off the top of my head, but it is something like the following.

sTHE_DATE = sTHE_DATE=Request.Form("THE_DATE")

sUPDATE_SQL = "UPDATE TheTable SET TheDateField = CASE " & sDATE & "WHEN '' THEN NULL ELSE " & sDATE & " END ..."
There is no way you cannot stop the sql server to take the 1/1/1900 value but you can solve you problem by making the field varchar and later on in the programming part convert this value into the date by using the date functions. Because when i have the similar problem then i solve this by this way only.


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Force accepting hongjun's answer.
It is pretty clear you can't assign a string to a date field.
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