E' stato utilizzata la libreria OracleClient da referenziare nel progetto .Net in Visual Studio
//using System.Data.OracleClient; private static void testConnectionDB() { OracleConnection conn = new OracleConnection(oraConn); int intRecord = 0; string str1="Florence"; string str2="Italy"; try { conn.Open(); OracleCommand cmd = conn.CreateCommand(); cmd.CommandType = CommandType.Text; cmd.CommandText = "select count(*) as numAuthors from Authors where field1 =:strField1 and field2 =:strField2"; cmd.Parameters.AddWithValue("strField1", str1); cmd.Parameters.AddWithValue("strField2", str2); intRecord = Convert.ToInt32(cmd.ExecuteScalar()); } catch (Exception ex) { log.Error(ex.Message); } finally { cmd.Dispose(); if (conn.State != ConnectionState.Closed) { conn.Close(); } }