RE: Data Transfer between two instances

[Goulet, Dick]

Stephane,

   

    After much experimentation it is my considered opinion that SQL*Net is NOT the most efficient way to move data from point a to b, especially when using DB_LINKS.  SDU-TDU do help, but only marginally.  What you really need to do is use a bulk collect method that most application duhvelopers just don't seem to understand.  They like their data by the spoon full, not dump truck load.

 

Dick Goulet
Senior Oracle DBA
Oracle Certified 8i DBA

-----Original Message-----
From: Stephane Paquette [mailto:[EMAIL PROTECTED]
Sent: Monday, October 20, 2003 10:19 AM
To: Multiple recipients of list ORACLE-L
Subject: RE: Data Transfer between two instances

Db link slow ?

Are you sure ?  What was the bottleneck when you test ?

 

Using insert /*+ appent */ on non-indexed tables with nologging is usually fast enough in most cases.

 

I know that we can play with the SDU-TDU parameters on sql*net but I do not know what kind of performance improvement we can get from that.

 

 

Stephane Paquette

Administrateur de bases de donnees

Database Administrator

Standard Life

www.standardlife.ca

Tel. (514) 499-7999 7470 and (514) 925-7187

[EMAIL PROTECTED]

 -----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of Gunnar Berglund
Sent: 20 octobre, 2003 01:39
To: Multiple recipients of list ORACLE-L
Subject: Data Transfer between two instances

Hi all,

 

we have an application which needs data from other environment (which is actually SAP db). Currently we have implemented it the way we create flat files and put them in using pl/sql -procedures but I don't like this because the data in the flat files are "visible" and it is somehow "secret".

 

What other options we might have if we do not want to use db links (because of its slowness.

 

I very much appreciate all your suggestions...

 

TIA

gb

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