Re: Informatica Bulk Mode behavior

From: biti_rainy <biti_rainy_at_itpub.net>
Date: 22 Apr 2004 15:18:50 -0000
Message-Id: <20040422150318.CB02972EF55@turing.freelists.org>

hi,Thomas Jeff

  how many rows are there in one bulk operate, just for one =  block ,or for n*block ?

i had test direct insert
insert /*+ append */ into t values(...); the HWM moved; insert /*+ append */ into t values(...); HWM moved

but
begin
for i in 1..1000 loop
 insert /*+ append */ into t values(...); end loop;
end;

in this pl/sql code, there is no direct insert ,oracle ignore the=  hints

Best regards

yahoo id: feng_chunpei
A new dba from china

• from the mail-----
  >List,
  >Is anyone familiar with how Informatica's bulk mode works?
  >
  >We have a situation where I created a 4GB tablespace for a new=
  and
  >simple
  >truncate/load operation from Informatica, around 7 million rows
  >estimated
  >to take up 1.5GB.
  >
  >Using bulk mode, which appears to be a direct load (in the SQL=
  cache,
  >the
  >INSERT statement has a hint that I've never seen before: =
  SYS_DL_CURSOR
  >which
  >I assume stands for Direct Load), they run out of space in the
  >tablespace after
  >about 200K rows have been inserted.
  >
  >If I then manually rebuild the table, the 200K rows gets=
  compressed back
  >down
  >to one extent.
  >
  >So there's a lot of either empty or preallocated space. =
  Thinking
  >somehow
  >the high-water mark was the culprit, I manually truncated the=
  table
  >before
  >they reran their job.
  >
  >Still the same problem.
  >
  >If the job runs in 'normal' mode, which is row-by-row=
  processing, it
  >runs fine,
  >although of course, performance is quite poor.
  >
  >Any ideas/experience as to how this bulk mode operates?
  >
  >Thanks.
  >
  >
  >--------------------------------------------
  >Jeffery D Thomas
  >DBA
  >Thomson Information Services
  >Thomson, Inc.
  >
  >Email: jeff.thomas_at_thomson.net
  >
  >Indy DBA Master Documentation available at:
  >http://gkmqp.tce.com/tis_dba
  >--------------------------------------------
  >
  >
  >
  >----------------------------------------------------------------=
  

>Please see the official ORACLE-L FAQ: http://www.orafaq.com
>----------------------------------------------------------------=

>To unsubscribe send email to: oracle-l-request_at_freelists.org
>put 'unsubscribe' in the subject line.
>--
>Archives are at http://www.freelists.org/archives/oracle-l/
>FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html
>----------------------------------------------------------------=
-
>
>.

=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1

---

Please see the official ORACLE-L FAQ: http://www.orafaq.com

---

To unsubscribe send email to: oracle-l-request_at_freelists.org put 'unsubscribe' in the subject line.

--
Archives are at http://www.freelists.org/archives/oracle-l/
FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html
-----------------------------------------------------------------

Received on Thu Apr 22 2004 - 11:20:04 CDT