protected void button2_Click(object sender, EventArgs e)
{
OracleConnection conn = new OracleConnection("Data Source=yu;Persist Security Info=True;User ID=xxxxxxx;Password=xxxxxxx;Unicode=True;");
OracleCommand cmd = new OracleCommand();
cmd.Connection = conn;
cmd.CommandText = "sp_Acc_CreatePermission";
cmd.CommandType = CommandType.StoredProcedure;
// add the parameters, including the return parameter to retrieve
// the return value
cmd.Parameters.Add("CategoryID", OracleType.Number).Value = 555;
cmd.Parameters.Add("Description", OracleType.VarChar, 50).Value = "aaa1";
cmd.Parameters.Add("OutValue", OracleType.Number).Direction = ParameterDirection.Output;
// execute the function
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();
// output the result
Response.Write("OutValue: " + cmd.Parameters["OutValue"].Value);
}

 protected void Button4_Click(object sender, EventArgs e)
{
Accounts.Data.Permission myperm = new Accounts.Data.Permission();
int i = myperm.Create1(555, "aaa3");
Response.Write(i.ToString());
}

调用的方法CREATE1
public int Create1(int categoryID, string description)
{
int rowsAffected;
OracleParameter[] parameters =
{
new OracleParameter("CategoryID", OracleType.Number),
new OracleParameter("Description", OracleType.VarChar,50)
};
parameters[0].Value = categoryID;
parameters[1].Value = description;
return DbHelperOra.RunProcedure2("sp_Acc_CreatePermission", 

parameters, out rowsAffected);
}

        public static int RunProcedure2(string storedProcName, IDataParameter[] parameters, out int rowsAffected)
{
using (OracleConnection connection = new OracleConnection(connectionString))
{
int result;
connection.Open();
OracleCommand command = BuildIntCommand2(connection, storedProcName, parameters);
rowsAffected = command.ExecuteNonQuery();
result = int.Parse(command.Parameters["OutValue"].Value.ToString());
//Connection.Close();
return result;
}
}

        private static OracleCommand BuildIntCommand2(OracleConnection connection, string storedProcName, IDataParameter[] parameters)

{

OracleCommand command = BuildQueryCommand(connection, storedProcName, parameters);                 
command.Parameters.Add(" OutValue", OracleType.Number).Direction = ParameterDirection.Output; return command; }