Sql server datetime datatype column blank value

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How to put blank value to a DATETIME datatype column in sql server

blank value means,full blank,not zero

Posted 10-Feb-11 0:15am

kishore Rajendran

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Wendelius · Answer 1 · 2011-02-10T00:20:00

You use the keyword NULL to add an undefined value.

For example:

INSERT INTO YourTable (SomeDateTimeField) VALUES (NULL)

Also remember that NULL is always queried using IS NULL or IS NOT NULL operators since it's never equal to anything.

If your dong this from .Net application you use System.DBNull.Value for the appropriate parameter.

Regards,

mika

OriginalGriff · Answer 2 · 2011-02-10T00:20:00

Solution 2

The only way you can do that is if you have set "allow null" on the field definitionm. You can then assign a DBNull value to it.

Otherwise, a datetime value is numeric: you cannot assign a blank to it, any more than you can assigne a blank to a number.

Posted 10-Feb-11 0:20am

OriginalGriff