Re: [INTERFACES] selectecting not null varchars. - Mailing list pgsql-interfaces

Ed Loehr wrote:
> 
> Joseph Shraibman wrote:
> >
> >  select * from directory where h != null  ;
> > ... gets you this:
> > ERROR:  parser: parse error at or near ";"
> 
> Postgresql's SQL "not equal" operator is "<>"...Try this:
> 
>         select * from directory where h <> null;
> 
> Cheers,
> Ed Loehr
> 

Does that work? I remember when the equality with NULL was added
because of non-compliant queries being generated from Access. I
didn't know inequality was implemented as well. Formal SQL is:

SELECT * FROM directory WHERE h IS NOT NULL;

Mike Mascari