oracle全托管驅動Oracle.ManagedDataAccess

oracle官方的托管驅動，發布只需一個6M多的dll，支持EF 支持分布式事務，使用步驟如下： 

1，Download ODP.NET, Managed Driver .zip file to a directory for staging the install.
2，Unzip the download to expand its contents into the target directory.
3，Run configure.bat to GAC and configure machine.config for ODP.NET, Managed Driver.
4，Create a new Visual Studio 2010 console application project for C#.
    Add Oracle.ManagedDataAccess.dll as a reference to the project.
    Replace the contents of Program.cs with the following C# code.

Notice that the namespace of ODP.NET, Managed Driver (Oracle.ManagedDataAccess.*) is different from the namespace of ODP.NET, Unmanaged Driver (Oracle.DataAccess.*).

using System;
using Oracle.ManagedDataAccess.Client;
using Oracle.ManagedDataAccess.Types;
namespace Connect{ 
        class Program
        {
            static void Main(string[] args)
            {
                try
                {
                    // Please replace the connection string attribute settings       
                    string constr = "user id=scott;password=tiger;data source=oracle";
                    OracleConnection con = new OracleConnection(constr);
                    con.Open();        
                    Console.WriteLine("Connected to Oracle Database {0}", con.ServerVersion);
                    con.Dispose();
                    Console.WriteLine("Press RETURN to exit.");
                    Console.ReadLine();
                }
                catch (Exception ex)
                {
                    Console.WriteLine("Error : {0}", ex);
                }
            }
        }
}