Error when connect proxy user

Question

i using ODP.NET connect to oracle database with proxy user, when i connect with a password not correct then i can't again connect with password correct after.
string[] cs = new string[2];
cs[0] = "Data Source=orcl;User Id=user1;Password=pass1;"+
"Proxy User Id=proxyuser;Proxy Password=pass;Pooling=true";
cs[1] = "Data Source=orcl;User Id=user1;Password=pass2;"+
"Proxy User Id=proxyuser;Proxy Password=pass;Pooling=true";
using (OracleConnection oc = new OracleConnection(cs[0]))
try
oc.Open();
catch (OracleException ex)
oc.Close();
using (OracleConnection oc = new OracleConnection(cs[1]))
try
oc.Open();
catch (OracleException ex)
oc.Close();
using (OracleConnection oc = new OracleConnection(cs[0]))
try
oc.Open();
catch (OracleException ex)
oc.Close();
Part 3: always wrong. it can't open
Please help me.
Message was edited by:
bvnhan

Answer 1

Hi,
I tested the following and got the expected results (doenst connect). I'm using 10.2.0.2 ODP, and got the same behavior pointing to 9206 db and 10.2.0.2 db.
I did a quick check and dont see any obvious related bug fixes in ODP, but if you're not using 10.2.0.2 ODP, you might want to try that.
Here's exactly what I tested.
Cheers
Greg
CODE
==========================
drop user proxyacct cascade;
drop user puser1 cascade;
create user proxyacct identified by pass;
create user puser1 identified by pass;
grant connect, resource to proxyacct;
grant create session to puser1;
ALTER USER puser1 GRANT CONNECT THROUGH proxyacct AUTHENTICATED USING PASSWORD;
using System;
using System.Data;
using Oracle.DataAccess.Client;
public class testproxy
public static void Main()
string goodstring ="data source=orcl;user id=puser1;password=pass;proxy user id=proxyacct;proxy password=pass";
string badstring = "data source=orcl;user id=puser1;password=;proxy user id=proxyacct;proxy password=pass";
using (OracleConnection oc = new OracleConnection(goodstring))
try
     oc.Open();
     Console.WriteLine("con1 connected");
catch (OracleException ex)
     Console.WriteLine("exception caught1 " + ex.Message);
using (OracleConnection oc = new OracleConnection(badstring))
try
     oc.Open();
     Console.WriteLine("con2 connected");
catch (OracleException ex)
     Console.WriteLine("exception caught2 " + ex.Message);
     // still need this to work around the problem
     // of next connection getting the same error this one did
     OracleConnection.ClearPool(oc);
using (OracleConnection oc = new OracleConnection(goodstring))
try
     oc.Open();
     Console.WriteLine("con3 connected");
catch (OracleException ex)
     Console.WriteLine("exception caught3 " + ex.Message);
MY OUTPUT
===============================
con1 connected
exception caught2 ORA-28183: proper authentication not provided by proxy
con3 connected