ERROR : The 'OraOLEDB.Oracle' provider is not registered on the local machine.

Hi All,
        I am working with Dot Net and Oracle 9i. I have installed Oracle 9i client on my machine. I am able to work in "sqlplusw" and run queries there. But when I try to run the program code, it is giving the following error :
  The 'OraOLEDB.Oracle' provider is not registered on the local machine.

What can be the matter ? I reinstalled Oracle 9i but no use......

Kindly help.

Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Hi Inderjeet,
can you post the namespaces that you are using in your .aspx file?

isbhatiaAuthor Commented:
   The namespaces that I am using in my .aspx page are :

Imports System.Data
Imports System.Data.OleDb

Do I need to use some other namespace also ?

Let me tell you one of my findings. When I am trying to connect to database using VB, i am successful. But with the same connection string , I am getting error in ASp.NEt

Kindly Help

If you are using .Net I would suggest using the .NET Managed Provider for Oracle(  You need to download this to the server you are running your pages on, and then in the page declaration of the asp page ("<%@ Page Language="VB" %>") add this line:

CompilerOptions='/R:"C:\Program Files\Microsoft.NET\OracleClient.Net\System.Data.OracleClient.dll"'.


'Delcare Oracle Objects
                Dim conn As New OracleConnection()
                Dim comm As New OracleCommand()
                Dim dr As OracleDataReader

'Set connection string and open conn
                    conn.ConnectionString ="Data Source=database;User Id=uid;Password=pwd;"

'This is where your query code would go
                    comm.CommandText = "YourProcedureName"
                    comm.CommandType = CommandType.StoredProcedure

'If you have any Parameters:
comm.parameters.add(New OracleParameter("v_YourParamName", OracleType.varchar)).Value = "Value"
'Execute your command
comm.Connection = conn

'Place a <ASP:Datagrid> in a form on the page and set its datasource to dr to test
MyDataGrid.DataSource = dr
dr = comm.ExecuteReader()

'Always be sure to close your connection

I hope this help.
Let me know if your need any clarification on this.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
HTML5 and CSS3 Fundamentals

Build a website from the ground up by first learning the fundamentals of HTML5 and CSS3, the two popular programming languages used to present content online. HTML deals with fonts, colors, graphics, and hyperlinks, while CSS describes how HTML elements are to be displayed.

Sorry I pasted a couple of lines in the wrong order:

dr = comm.ExecuteReader()
should come before:
MyDataGrid.DataSource = dr

Hi isbhatia,
Iam facing the same problem and iam also using OleDb, did u solve the problem without using System.Data.OracleClient.dll which was suggested by Cavada12..?

Hi Cavada12,
I change my code with your solution
But I meet another problem that unable to load oci.dll, can you help me to deal with it.

It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Web Development

From novice to tech pro — start learning today.