Comments on: Updateable External Tables

By: Oracle 7Up to 10g – How time flies… Training for seasoned Oracle SQL and PL/SQL Developers « AMIS Technology blog

Sun, 07 Nov 2010 13:26:46 +0000

[...] How we can edit files through simple insert and update operations – Peter Kok’s article on Updateable External Tables [...]

By: Updateable External Tables « Rangarajan Iyengar’s Blog

Updateable External Tables « Rangarajan Iyengar’s Blog — Mon, 02 Feb 2009 06:19:24 +0000

[...] tables by a workaround, ofcourse there are some caveats on doing this. Kindly read about it here and make sure you read about caveat as [...]

By: bvk

bvk — Thu, 14 Jun 2007 21:10:12 +0000

Hi Indeed this is a good article!! But could you please give an example of external table with the load when condition!!

By: Big Daddy Kool Maish

Big Daddy Kool Maish — Fri, 22 Dec 2006 16:46:35 +0000

Thanks for a well thought out explanation. I cannot imagine using this technique for
any large scale production database as it must be much too slow. Also, the lack of any
locking mechanism means that it is subject to corruption with simultaneous use in either a single instance or RAC environment. But it is a very inventive solution.

By: Guna

Guna — Wed, 22 Feb 2006 12:06:08 +0000

Hi,

This work around of using DML on Ext Tables was extremely superb,
although it is not applicable in real time.

My question here is whether using Ext Tables to load data into oracle tables
or using SQL Loader (Legacy way) is the best bet in performance in the below cases:

1) For small files (say size in MB)
2) For Medium Files (Say in GB)
3) For VL files (Say in TB)

By: Naveed Ahmed Siddiqui

Naveed Ahmed Siddiqui — Wed, 09 Nov 2005 07:01:47 +0000

How we can handle indexing in this approach?

By: GD

GD — Mon, 24 Oct 2005 15:05:27 +0000

It does not work from TOAD env. as TOAD does not allow to create a new row for a view built over an external table.
I tried using MS Access and DSN but Access but could not make it work. Anyone tried on these two envs. ?

By: Upendra

Upendra — Wed, 24 Aug 2005 11:49:45 +0000

My external table is not working on ‘mapped’ drives on windows. but this is a requirement. can you advice on this please!!!

By: Lucas

Lucas — Wed, 29 Jun 2005 13:44:21 +0000

I suppose you intended to say something like: I would really like to see an example of the LOAD WHEN syntax. In any case, does the Oracle documentation not help you there?

By: surendra

surendra — Wed, 29 Jun 2005 07:15:20 +0000

i want one example on using LOAD WHEN CONDITION in External Tables