open System;
open Oracle.DataAccess.Client;

let conStr = "Data Source=ORCL;User ID=scott;Password=tiger;"
let con = new OracleConnection(conStr)
let sqlStr = "SELECT 'Hello, ODP.NET World' AS Message FROM DUAL"
let cmd = new OracleCommand(sqlStr, con)
con.Open()
let reader = cmd.ExecuteReader()
while reader.Read() do
    printfn "%s" (reader.GetName(0))
    printfn "---------------------" 
    printfn "%s" (reader.GetString(0))
reader.Close()
con.Close()