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From "Derrick Koes" <>
Subject RE: Need Consultant $$ [RE: Oracle 9i client connection to 8i database]
Date Thu, 06 Jan 2005 00:17:31 GMT

I think this depends largely on the type of connection you are making.  If you are using the
OCI driver (type 2), I believe you need the oracle client installed on the web application

If you are using the thin driver (type 4), I don't think you need the client software to be

Here are some samples from the oracle site.

BTW, I think that if you use the oracle OCI connection pool classes you have to use the type
2 driver (OCI driver).


  <Name>Derrick Koes</Name>
  <Title>Senior Software Engineer</Title>
  <Company name="SkillSoft"
  <Phone>(603) 821-3260</Phone>
  <Cell>(603) 305-1753</Cell>
  <Quote attributedTo="Yoda">No, try not, do
    or do not, there is no try.</Quote>

-----Original Message-----
From: Brad Rhoads [] 
Sent: Wednesday, January 05, 2005 7:09 PM
To: 'Tomcat Users List'
Subject: Need Consultant $$ [RE: Oracle 9i client connection to 8i database]
Importance: High

Our web app needs to talk to oracle. All is well if the app runs on the db server. But at
a client site and on our now on own network, if the app is on a different box, it can't get
an oracle connection. It works fine on 2 boxes at other client sites.

A related item seems to be that since the change in our network (we just added a fire wall,
the app itself has not changed), we have to change the
Net8 configuration to use a service name instead of a sid.

The web app makes a connection using a sid. (I've been looking for way to change our connection
to use a service name with no luck so far.)

We've had a similar problem when the app was outside the firewall, the db was behind it, and
the firewall didn't allow high-ports through. But in the case of our client and our own case,
both machines are behind the firewall.

I currently have the webapp running on the db server, but the client is very unhappy with
this and my boss wants me to seek what ever help is necessary to resolve this problem. 

If you think you can help, please reply privately with your rate, availability. I think everything
can be done remotely, but it might mean a trip to the client on Monday if we can't work it
out by then.

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