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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Turning off undo for one session
Thanks for the response, unfortunately the application requires the
data
to be stored in the database, loading the files as BFILE type and then
using
DBMS_LOB.READ is not possible.
Darren
-----Original Message-----
Sent: Thursday, October 09, 2003 10:10 AM
To: Multiple recipients of list ORACLE-L
Undo cannot be "turned off" because without commit/rollback capability, RDBMS can no longer manage resources and cannot observe ACID properties. What you can do is to load files as BFILE type, which, essentially, means that you are copying them to file system and just recording the pathname into the database. If you use DBMS_LOB.READ, then LOB blocks are protected by the transaction mechanism and there is nothing you can do.
On Thu, 2003-10-09 at 12:44, Browett, Darren wrote:
> We are trying to load 23Gb's of raster images into our 9.2.0.2/Rac
> Database, using ESRI's SDE GIS package,
> and as usual there is a big rush to load the data.
>
> If we try to load 14 images at one time, we run out of undo space
> (datafile is currently 2 Gb). I could simply add another
> datafile and not worry about, but I figure that's the easy way out.
>
> I have turned logging off for the table and the tablespace, but I
can't
> figure out how to turn the creation of undo
> off for a particular session, or if it is even possible.
>
> Thanks
>
> Darren
>
>
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