Re: [NOVICE] a couple of newbie question

Поиск
Список
Период
Сортировка
От D. Duccini
Тема Re: [NOVICE] a couple of newbie question
Дата
Msg-id Pine.GSO.3.96.1000416141605.6243A-100000@ra.bpsi.net
обсуждение исходный текст
Ответ на a couple of newbie question  (Matthew Denny <mdenny@CS.Berkeley.EDU>)
Список pgsql-interfaces
You insert it by NOT inserting it.

insert into test_table (col_x, col_y) values (:x, :y);

you basically omit any column you do not want to insert values for

-duck

On Sun, 16 Apr 2000, Matthew Denny wrote:

> 
> I know this question is probably fairly elementary, but I could not
> find the answer in the docs or mailing list archives.  How does one handle
> NULL values in the embedded SQL interface?  For example, if I have a
> statement:
> 
> exec sql insert into test_table values(:foo, :x, :y)
> 
> and foo represents a CHAR attribute (represented by a string in C) that I
> want to set to NULL, how do I go about doing this?  Similarly, how do
> I tell that a value put into a variable by a fetch call is NULL or
> not?  
> 
> On a different note, is there any list of error codes for the actual
> postgreSQL errors, or is the only thing a user can get back is the
> text message in sqlca.sqlerrm.sqlerrmc (e.g. no associated error #)?
> 
> Any help would be greatly appreciated.
> 
> thanks,
> Matt
> 


-----------------------------------------------------------------------------
david@backpack.com            BackPack Software, Inc.        www.backpack.com
+1 651.645.7550 voice       "Life is an Adventure.    
+1 651.645.9798 fax            Don't forget your BackPack!"   
-----------------------------------------------------------------------------



В списке pgsql-interfaces по дате отправления:

Предыдущее
От: Matthew Denny
Дата:
Сообщение: a couple of newbie question
Следующее
От: Ivo Simicevic
Дата:
Сообщение: Re: a couple of newbie question