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Jim Kennedy  
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 More options Jun 2 2005, 8:51 pm
Newsgroups: comp.databases.oracle.server
From: "Jim Kennedy" <kennedy-downwithspammersfam...@attbi.net>
Date: Thu, 2 Jun 2005 17:51:05 -0700
Local: Thurs, Jun 2 2005 8:51 pm
Subject: Re: Oracle and Dotnet
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"Larry" <la...@larry.com> wrote in message

news:qOLne.9857$xm3.5416@attbi_s21...

> pobox...@bebub.com wrote:
> > You are not using bind variables and over parsing. Each time you build
> > that string it is a unique statement that needs validating and
> > compiling.

> > You should have something like

> > string SQL = "insert into test values (?)";

> > and bind the placeholder. Sorry I am not a C# programmer so I don't
> > have the syntax, but there should be ODP.NET code examples on
> > http://otn.oracle.com

> Thanks for that reply.  I changed my string to

> =============================================
> string SQL = "insert into test values ('1')";
> =============================================

> By doing that I removed the variable and simply deposited a constant.
> My performance did improve from 35 to 40 inserts per second but that is
> still way short of any usable rate for my application.

> Thanks again!

Larry,
You are not using bind variables.  This is very very inefficient.  You are
forcing a hard parse.  Use bind variables and just reexecute.  Also I
suspect the odp.net isn't set up correctly.  I don't use odp.net so I can't
tell you what to change.  I have used Oracle's ole objects in VB and C++ and
using bind variables and array interface in VB I can get around 20,000
records inserted per sec into an IOT table. (over the network), with 8.1.7.4
version of Oracle. (10g should be more efficient)

Jim


 
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