Re: [INTERFACES] manipulate array wiht ecpg

Поиск
Список
Период
Сортировка
От Michael Meskes
Тема Re: [INTERFACES] manipulate array wiht ecpg
Дата
Msg-id 19991229133401.B324@fam-meskes.de
обсуждение исходный текст
Ответ на Re: [INTERFACES] manipulate array wiht ecpg  ("S.F. Lee" <sflee_tw@yahoo.com>)
Список pgsql-interfaces
On Tue, Dec 28, 1999 at 10:40:52PM -0800, S.F. Lee wrote:
> After getting temp from exec sql select ....., I use
> strtol() to convert temp.a into a integer array, and 
> it works! I now have another problem that is I can get

Still I would prefer a better handling by ecpg. :-)

> the tuples by sqlca.sqlerrd[2], but how can I get the
> type of each field that has been selected? In libpq++
> FieldType(n) can get the type of field, how about in 
> ecpg?

I do not know a way other than querying the data dictionary. What does the
standard say? Should we return such info?

What do other RDBMS do in this scenario?

Is there a way I can give this info back anyway. Right now I cannot imagine
one since we give back the whole tuple at once. Where shall we store these
per attribute infos?

Michael
-- 
Michael Meskes                         | Go SF 49ers!
Th.-Heuss-Str. 61, D-41812 Erkelenz    | Go Rhein Fire!
Tel.: (+49) 2431/72651                 | Use Debian GNU/Linux!
Email: Michael@Fam-Meskes.De           | Use PostgreSQL!


В списке pgsql-interfaces по дате отправления:

Предыдущее
От: Ed Loehr
Дата:
Сообщение: Re: [INTERFACES] Data Search
Следующее
От: Adolfo Diaz
Дата:
Сообщение: RE: [INTERFACES] INTERFACES ODBC