Re: select an entry with a NULL date field

The syntax you're looking for is:

SELECT entry_id FROM tbl_date WHERE date_02 IS NULL;

Mark

Web Manager wrote:
> 
> Hello,
> 
> I have a problem with PostgreSQL when I try to select or delete an entry
> with an empty date. That's a typical entry
> 
> Table tbl_date
> -----------------------------
> entry_id    154
> date_01    2000-01-15
> date_02    this date is NULL
> name        my_test
> -----------------------------
> 
> I want to select every entry containing date_02 as NULL
> I tried :
> >select entry_id from tbl_date where date_02=NULL;
> ERROR:  parser: parse error at or near "null"
> >select entry_id from tbl_date where date_02='';
> Not work, that's a wrong date format
> >select entry_id from tbl_date where date_02="";
> Not work, "" considered as an attribute
> 
> Thank you for your time!
> --
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Marc Andre Paquin