On 21 May 2003 at 16:10, zhangyue wrote:
> Hi,
> How can I get the tuples one of whose attributes is NULL?
> For example,
> First, create table tb(id int,name text);
> Then insert into tb values(1);
> insert into tb values(2,'Rose');
> I want to select the tuples whose attribute name= NULL,
> How to write the sql ?
select columns from table where attribute is null;
This should have been on postgresql-general, not on hackers..
HTH
Bye
Shridhar
--
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