Обсуждение: null value in date field

I have a form that contains optional DATE fields.  To enter null
values, I've tried null, 'null', '', '-', '0', 0, and each time I get
one of the following errors:

ERROR:  Bad numeric input format ''

ERROR:  Bad date external representation ''

Is there a correct way to enter null values into DATE fields?

Thanks,
Jeff Deroshia

Jeff,

> I have a form that contains optional DATE fields.  To enter null
> values, I've tried null, 'null', '', '-', '0', 0, and each time I get
> one of the following errors:

NULL is correct, no quotes.   Please post the actual insert statement
you are sending; likely the problem is elsewhere.

-Josh

On Tue, Feb 18, 2003 at 04:13:59PM -0500, Jeff Deroshia wrote:
> I have a form that contains optional DATE fields.  To enter null
> values, I've tried null, 'null', '', '-', '0', 0, and each time I get
> one of the following errors:
>
> ERROR:  Bad numeric input format ''
>
> ERROR:  Bad date external representation ''
>
> Is there a correct way to enter null values into DATE fields?

Yes:

=> create table dummy (mydate date);
CREATE
=> insert into dummy values (null);
INSERT 3397454 1
=> select * from dummy;
 mydate
--------

(1 row)

You say you tried null: what was your insert?  What's the table look
like?

--keith

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Thanks to everyone who helped.  I was using prepared statements with
java.sql.
I was using the setString() method to set the value to null, when I
needed to be using the setNull() method.  It created the null values
that I needed.

Jeff
On Tuesday, February 18, 2003, at 07:25 PM, Josh Berkus wrote:

> Jeff,
>
>> I have a form that contains optional DATE fields.  To enter null
>> values, I've tried null, 'null', '', '-', '0', 0, and each time I get
>> one of the following errors:
>
> NULL is correct, no quotes.   Please post the actual insert statement
> you are sending; likely the problem is elsewhere.
>
> -Josh