Re: need cursor info

From:
Robert Klemme <shortcutter@googlemail.com>
Newsgroups:
comp.lang.java.programmer
Date:
Tue, 28 Nov 2006 09:42:01 +0100
Message-ID:
<4t2b2lF1241m3U2@mid.individual.net>
On 28.11.2006 02:02, Martin Gregorie wrote:

Robert Klemme wrote:

Actually there are drivers with which you cannot get the column names
from a table via meta data, so once I actually had to resort to SELECT
* FROM table WHERE 1 = 0 in order to get the column names and types.
Fortunately I did not see the effects you mention. :-)


Sounds like a nasty driver to me. You're lucky you didn't have any large
tables to play with.


It /was/ a large table but the DB was smart enough to not do a FTS.

 > Somewhat later I was working with the RedBrick data

warehouse, which only supported ODBC. Our fact table contained 3 BILLION
 rows...


Some of our DWH's are in the same region.

Do you recall what happened when you tried using meta data? I mean, was
there a recognizable error code that could have been used, e.g. by
middleware developers, to decide whether the column metadata was usable
or if it was necessary to do the WHERE 1 = 0 trick?


I checked, but I did not find any error messages documented and I can't
remember. Would have to test it out again. The DB and driver were
Oracle - could be that it was with Oracle 8 and a newer driver.

Kind regards

    robert

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