Hi Octavian,
One approach is to use a trigger,
mysql> set sql_mode = '';
mysql> create table temp_date(d date default null);
mysql> create trigger temp_date_bi before insert on temp_date for each row set
new.d = if(new.d = '0000-00-00', null, new.d);
mysql> insert into temp_date(d) values('2009-13-99');
mysql> select * from temp_date;
+------+
| d |
+------+
| NULL |
+------+
1 row in set (0.01 sec)
mysql> insert into temp_date(d) values('2009-11-19');
mysql> select * from temp_date;
+------------+
| d |
+------------+
| NULL |
| 2009-11-19 |
+------------+
2 rows in set (0.07 sec)
Cheers,
-Janek
CMDEV 5.0
On Fri, 2009-05-15 at 11:32 +0300, Octavian Rasnita wrote:
> Hi,
>
> I have a table with a column like:
>
> date date default null,
>
> If I enter an empty string in it, the default null value is added (as it
> should).
>
> But if I enter an invalid date by mistake, the date 0000-00-00 date date is
> entered instead of the default null, and this is not good.
>
> Can I do something to force MySQL to insert a null date if the entered date
> is an invalid one?
>
> Thank you.
>
> --
> Octavian
>
>
>
>
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