Re: problem selecting rows with null value

Use 'IS NULL' or 'IS NOT NULL' like this:

select * from pleah where bar IS NULL;

'=' does not work for null values.

On Wed, 2003-03-12 at 16:47, Matthew Phillips wrote:
> I am sure that I am doing something subtly wrong with my sql syntax
> here. I thought that it was a timestamp null column issue, but it
> doesn't work with int either. Is there a special way to denote the null
> value in a situation like this that I don't know about?
>
> tsc=# create table pleah(
> tsc(# foo INT NOT NULL,
> tsc(# bar timestamp DEFAULT NULL );
> CREATE TABLE
> tsc=# insert into pleah (foo) values (1);
> INSERT 206475246 1
>
> ###ok here I would just like to select that row that I just inserted...
> but no!
>
> tsc=# select * from pleah where bar = NULL;
> foo | bar
> -----+-----
> (0 rows)
>
> tsc=# select * from pleah;
> foo | bar
> -----+-----
> 1 |
> (1 row)
>
> thanks muchly
> matthew
>
>
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