Re: Inserting "null" not working (Sun App Server, Postgres, EJB3)?

Поиск
Список
Период
Сортировка
Искать
От
Dave Cramer
Тема
Re: Inserting "null" not working (Sun App Server, Postgres, EJB3)?
Дата
Msg-id
A3D1BE07-7266-4DCF-859A-69C67E44B3EF@fastcrypt.com
Ответ на
Список
Дерево обсуждения
Inserting "null" not working (Sun App Server, Postgres, EJB3)? "Ahmed Abd-el-Shafy Abd-Allah" <aaabdallah@gmail.com>
Re: Inserting "null" not working (Sun App Server, Postgres, EJB3)? "Heiko W.Rupp" <heiko.rupp@redhat.com>
Re: Inserting "null" not working (Sun App Server, Postgres, EJB3)? Dave Cramer <pg@fastcrypt.com>
Re: Inserting "null" not working (Sun App Server, Postgres, EJB3)? Tom Lane <tgl@sss.pgh.pa.us>
Re: Inserting "null" not working (Sun App Server, Postgres, EJB3)? Dave Cramer <pg@fastcrypt.com>
Re: Inserting "null" not working (Sun App Server, Postgres, EJB3)? Tom Lane <tgl@sss.pgh.pa.us>
Re: Inserting "null" not working (Sun App Server, Postgres, EJB3)? Oliver Jowett <oliver@opencloud.com>
Re: Inserting "null" not working (Sun App Server, Postgres, EJB3)? Dave Cramer <pg@fastcrypt.com>
Re: Inserting "null" not working (Sun App Server, Postgres, EJB3)? Dave Cramer <pg@fastcrypt.com>
Re: Inserting "null" not working (Sun App Server, Postgres, EJB3)? "Heiko W.Rupp" <heiko.rupp@redhat.com>
Re: Inserting "null" not working (Sun App Server, Postgres, EJB3)? aaabdallah@gmail.com
Re: Inserting "null" not working (Sun App Server, Postgres, EJB3)? "Heiko W.Rupp" <heiko.rupp@redhat.com>
Re: Inserting "null" not working (Sun App Server, Postgres, EJB3)? Dave Cramer <pg@fastcrypt.com>
Re: Inserting "null" not working (Sun App Server, Postgres, EJB3)? aaabdallah@gmail.com

On 1-Mar-07, at 7:06 PM, Tom Lane wrote:

> Dave Cramer  writes:
>> The reason that setNull is required is because the type information
>> is required. NULL by it self has no type information. The jdbc driver
>> binds values to a prepared statement and the type information is
>> required. So setNull( n, typeinfo) is required to bind the correct  
>> type.
>
> At least in this particular case, leaving the parameter type as  
> UNKNOWN
> would have worked as the OP wishes.  I dunno if that would break other
> cases though.

This means you have to leave all parameter types as UNKNOWN. What's  
the point of having parameter types at all ?

Dave
> 			regards, tom lane
>

В списке pgsql-jdbc по дате отправления
От: Tom Lane
Дата:
От: Tom Lane
Дата:
FAQ