Problem in connecting with oracle when hosting in IIS?

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When my website was run locally that time it works properly but whenever i hosted it in IIS getting problem.
Problems connection to Oracle 11g database from IIS7 ASP.net using system.data.common

Posted 25-Oct-13 1:53am

Rakesh Meel

Updated 25-Oct-13 2:54am

Tejas Vaishnav

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thatraja 25-Oct-13 8:06am

/*IIS getting problem.*/
what's that? Include complete error & log details in your question.

Tejas Vaishnav 25-Oct-13 8:55am

Can you please share your error message

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Prasad Khandekar · Answer 1 · 2013-10-25T03:55:00

Hello Rajesh,

MSDN Library
The System.Data.Common namespace provides generic classes for working with data that let you write code that can work across different data providers, as long as the data is isomorphic. The programming model for writing provider-independent code is based on the use of the "factory" design pattern, which uses a single API to access databases across multiple providers.

Given this info and more available here[^], I suspect that the ODP is not correctly installed or not installed at all on the machine where you are hosting the site.

So go ahead and download the ODP.NET xcopy installer from OTN website[^]. Do remember to download the correct version. Follow the installation instructions to install the provider. There after it's just a configuration, which I am sure is done properly as it's working locally?

Sample Configuration

XML

<system.data>
  <dbproviderfactories>
    <!-- Remove in case this is already defined in machine.config -->
    <remove invariant="Oracle.DataAccess.Client" />
    <add name="Oracle Data Provider for .NET">
         invariant="Oracle.DataAccess.Client"
         description="Oracle Data Provider for .NET"
         type="Oracle.DataAccess.Client.OracleClientFactory, Oracle.DataAccess, Version=4.112.3.0, Culture=neutral, PublicKeyToken=89b483f429c47342"/>
  </add></dbproviderfactories>
</system.data>

Regards,