Re: Question about Oracle compatibility

Поиск
Список
Период
Сортировка
От Don Baccus
Тема Re: Question about Oracle compatibility
Дата
Msg-id 3.0.1.32.20001127104727.01b3a100@mail.pacifier.com
обсуждение исходный текст
Ответ на Re: Question about Oracle compatibility  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-hackers
At 12:44 PM 11/27/00 -0500, Tom Lane wrote:
>Mario Weilguni <mweilguni@sime.com> writes:
>> In Oracle, empty strings and null are basicly the same,
>
>Are you sure about that?  It'd be a pretty major failure to comply with
>SQL standard semantics, if so.

Thought you'd get a kick out of this:

Connected to:
Oracle8i Enterprise Edition Release 8.1.6.1.0 - Production
With the Partitioning option
JServer Release 8.1.6.0.0 - Production

SQL> create table fubar(some_string varchar(1000));

Table created.

SQL> insert into fubar values('');

1 row created.

SQL> select count(*) from fubar where some_string is null;
 COUNT(*)
----------        1

SQL> 



- Don Baccus, Portland OR <dhogaza@pacifier.com> Nature photos, on-line guides, Pacific Northwest Rare Bird Alert
Serviceand other goodies at http://donb.photo.net.
 


В списке pgsql-hackers по дате отправления:

Предыдущее
От: Don Baccus
Дата:
Сообщение: Re: Question about Oracle compatibility
Следующее
От: Alex Perel
Дата:
Сообщение: Re: Question about Oracle compatibility