ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified

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I am getting this error while trying to connect Sybase databse from Visual Studio 2010 in C# code.

My App.Config file is like this :

C#

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <appSettings>
    <add key="DSN" value="SYBASE_TEST"></add>
    <add key="Database" value="MYDB"></add>
    <add key="UserId" value="uid"></add>
    <add key="Password" value="pwd"></add>
  </appSettings>
</configuration>

And my entire C# code is like this :

C#

using System;
using System.Configuration;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.Odbc;
namespace SybaseConsoleApp
{
    class Program
    {
        static string dsn = ConfigurationManager.AppSettings["DSN"];
        static string database = ConfigurationManager.AppSettings["Database"];
        static string userId = ConfigurationManager.AppSettings["UserId"];
        static string password = ConfigurationManager.AppSettings["Password"];        static void Main(string[] args)
        {
            //string connStr = "Driver={Sybase System 11};SRVR=" + dsn + ";DB=" + database + ";UID=" + userId + ";PWD=" + password;
            string connStr = "DSN=" + dsn + ";Uid=" + userId + ";Pwd=" + password + ";Database=" + database;
            OdbcConnection odbcConn = new OdbcConnection();
            odbcConn.ConnectionString = connStr;
            odbcConn.Open();
            ...........
            ...........
            odbcConn.Close();
        }
    }
}

And I'm getting the error at line

C#

odbcConn.Open();

I'm working in a remote machine and Sybase is in another remote machine.
Please help me as soon as possible.
Thanks in Advance.

Posted 27-Mar-13 9:21am

Member 9330747

Updated 27-Mar-13 13:59pm

v2

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ZurdoDev 27-Mar-13 15:36pm

It means there is no odbc connection named SYBASE_TEST on your system.

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Maciej Los · Answer 1 · 2013-03-27T11:36:00

There are possible 2 reasons (as good as i know):

1)
It looks like you do not specify a driver for connection string.

C#

//string connStr = "Driver={Sybase System 11};SRVR=" + dsn + ";DB=" + database + ";UID=" + userId + ";PWD=" + password;
            string connStr = "DSN=" + dsn + ";Uid=" + userId + ";Pwd=" + password + ";Database=" + database;

Have a look at commented line and line below this line ;) Do you see the difference?
Tip: I prefer to use String.Format[^] method.

C#

string connStr = Format("DSN={0};Uid={1};Pwd={2};Database={3}",dsn, userId, password, database);

If it not helps, please, see these:
http://www.connectionstrings.com/sybase-adaptive[^]
http://www.connectionstrings.com/sybase-advantage[^]
How to check if DSN has been properly set up? Using odbcad32.exe application. Read this: http://support.microsoft.com/kb/942976[^]

2)
DSN is not availible for some Windows users, because of DSN is User DSN, not system DSN.
Please, read this: http://digital.ni.com/public.nsf/allkb/852559036FB6447380256ADF007C3964[^]