import clr
clr.AddReference("System.Data")
clr.AddReference("Oracle.DataAccess")
from System import *
from Oracle.DataAccess.Client import *

conStr = "Data Source=ORCL;User ID=scott;Password=tiger"
sqlStr = "SELECT 'Hello, ODP.NET World!' AS Message FROM DUAL"

con = OracleConnection(conStr)
cmd = OracleCommand(sqlStr, con)
con.Open()

reader = cmd.ExecuteReader()
while reader.Read():
    Console.WriteLine( reader.GetName(0) )
    Console.WriteLine( "---------------------" )
    Console.WriteLine( reader.GetValue(0) )

reader.Close()
con.Close()