Proxy Connection with thin driver

Hello,
I am using 10g, and bea 81 sp3, I am trying to setup proxy authetication. All the references I find for proxy authetication are using OCI driver. Is proxy authetication supported using oracle 10g thin driver (ojdbc14.jar)? Can anyone provide me an example using thin driver?
appreciate any help,
Shailesh

See the following link for documentation on proxy authentication. http://download-uk.oracle.com/docs/cd/B19306_01/java.102/b14355/proxya.htm
Also, the release note for 10gR2 JDBC driver installation includes the following text:
Proxy Authentication
In Oracle 10g R1 we introduced proxy authentication for the
OCI driver. In this release we introduce a common proxy
authentication api that is supported by both the Thin and
OCI drivers. We strongly recommend that you use the common
api instead of the OCI specific api.

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Proxy user connectivity with thin driver

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thanks
Edited by: Nadvi on Jul 9, 2010 1:52 PM

Hi John,
Thanks for your reply. The documentation says, proxy connectivity method is same both for THIN & OCI8 driver. But what I can see is Jdeveloper is somehow misinterpreting the proxy user name.
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Observation: I have verified in serverlogs, applicationlogs but nothing i found. Hence I have created a separate static class and make the jdbc connection which is very quick and working fine.
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Edited by: user7631923 on Jan 4, 2013 2:13 PM

I have couple of J2EE applications deployed in Oracel 10g EM.
The applications build using Struts and JDBC.
I am using java thin driver to make DB Connection
Problem: When ever I make the db connection call, it is hanging there and not returning the db connection.
Observation: I have verified in serverlogs, applicationlogs but nothing i found. Hence I have created a separate static class and make the jdbc connection which is very quick and working fine.
I have ran the below command at the shell prompt: lsof -i:1521 | wc -l
It returned 128 connections.
I really did not uderstand what exactly went wrong here, Is there any problem with my application server or with my application.
Kindly get back to me what exactly is the wrong here, also Please let me know if you need more information.
Thanks in advance.
Edited by: user7631923 on Jan 4, 2013 2:13 PM

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What is the NLS_LANG settings of your database? Are you able to connect to the database with SQL*Plus? If not, you might want to try posting on the Oracle XE forum and solve that problem first.

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Wim,
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Thanks heaps (in advance :-),
Avi.

Oracle proxy authetication and thin driver

Hello,
I am using 10g, and bea 81 sp3, I am trying to setup proxy authetication. All the references I find for proxy authetication are using OCI driver. Is proxy authetication supported using oracle 10g thin driver (ojdbc14.jar)? Can anyone tell me, what drivers are support proxy authetication under oracle 10g?
Also application servers like bea will not give you oracledata source if you use bea to setup oracle connection pool, is there a easy work around that?
appreciate,
Shailesh

Replace this line:
DriverManager.registerDriver(new racle.jdbc.OracleDriver());with this one:
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BLOB insert behavior with thin driver using standard JDBC2.0 and ORACLE-JDBC2.0API

We have a problem with a BLOB insert to an oracle 8.1.7 DB using Oracle 8.1.7 JDBC thin driver.We get socket read/write error after inserting 32k of data using the standard JDBC2.0 API but using the Oracle JDBC2.0API (using OracleResultSet) it goes fine. We have a requirement to use the standard JDBC2.0 so that our code works with multiple database vendors. Is there another way to get in the blob data with standard JDBC API & using thin driver...?
thanks,
Madhu
Here is my sample test program that does both standard & oracle specific JDBC Blob test insert.
import java.sql.*;
import java.io.*;
import oracle.sql.BLOB;
import oracle.jdbc.driver.OracleResultSet;
public class testBLOB {
//trying to insert a huge file to a BLOB
static String fileName = "/kernel/genunix";
public static void main(String[] args) {
String driverName = "oracle.jdbc.driver.OracleDriver";
String dbURL = "jdbc:oracle:thin:@localhost:1521:test"; //thin driver
String user = "BlobTest";
String passwd = "BlobTest";
Connection con=null;
try {
Class.forName(driverName);
con=DriverManager.getConnection(dbURL, user,passwd);
catch (Exception e) {
e.printStackTrace();
close(con);
int i = 0;
while (i < args.length) {
if (args.equals("-f"))
fileName = args[++i];
i++;
System.out.println("The file being Stored is: "+fileName);
createTable(con);
insertUsingOracleAPI(con);
insertUsingJDBC20API(con);
//readDB(con);
static String getFileName() {
return fileName;
public static void close(Connection con) {
try {
if (con != null) {
con.close();
catch (Exception e) {
System.exit(-1);
public static void createTable(Connection con) {
Statement stmt ;
try {
stmt = con.createStatement();
stmt.execute("DROP TABLE basic_blob_table");
stmt.close();
catch (SQLException sqlEx) {
System.out.println("Dropped the Table");
try {
stmt = con.createStatement();
stmt.execute("CREATE TABLE basic_blob_table ( x varchar2(30), b blob)");
stmt.close();
catch (SQLException sqlEx) {
sqlEx.printStackTrace();
close(con);
System.out.println("Created the Table");
public static void insertUsingOracleAPI(Connection con) {
OutputStream os = null;
Statement stmt = null;
ResultSet rs = null;
FileInputStream is = null;
try {
con.setAutoCommit(false);
stmt = con.createStatement();
stmt.execute("INSERT INTO basic_blob_table VALUES( 'OracleAPI', empty_blob())");
System.out.println("Inserted the dummy Row");
rs = stmt.executeQuery("Select * from basic_blob_table where x='OracleAPI'");
if (rs != null && rs.next()) {
BLOB blob = ((OracleResultSet)rs).getBLOB(2);
File file = new File(getFileName());
is = new FileInputStream(file);
os = blob.getBinaryOutputStream();
byte[] chunk = new byte[1024];
int length = -1;
while((length = is.read(chunk)) != -1)
os.write(chunk, 0,length);
System.out.println("Inserted the File " + getFileName() );
catch (Exception e) {
e.printStackTrace();
finally {
try {
if (os != null) {
os.flush();
os.close();
if (is != null)
is.close();
stmt.close();
con.commit();
con.setAutoCommit(true);
catch (Exception e) {}
public static void insertUsingJDBC20API(Connection con) {
PreparedStatement stmt = null;
FileInputStream is = null;
try {
stmt = con.prepareStatement("INSERT INTO basic_blob_table VALUES(?,?)");
File file = new File(getFileName());
is = new FileInputStream(file);
stmt.setString(1,"JDBC20API");
stmt.setBinaryStream(2,is,(int)file.length());
stmt.executeUpdate();
catch (Exception e) {
e.printStackTrace();
finally {
try {
if (is != null)
is.close();
stmt.close();
catch (Exception e) {}
null

Thanks for the response.
I understand what you are saying...
that readers don't block writers in Oracle (the same is true in SQL Server 2000).
However, I don't see how my test case is working correctly with Oracle (the exact same code acting as I'm thinking it should with SQL Server, but I still think it is acting incorrectly with Oracle).
I have transaction A do this:
update <table> set <column2>=<value> where <column1>='1'
then I use Thread.sleep() to make that program hang around for a few minutes.
Meanwhile I sneak off and start another program which begins transaction B. I have transaction B do this:
select * from <table> where <column1>='1'
and the read works immediately (no blocking... just as you have said) however, transaction A is still sleeping, it has not called commit() or rollback() yet.
So what if transaction A were to call rollback(), the value read by transaction B would be incorrect wouldn't it ?
Both A and B use setAutoCommit(false) to start their transactions, and then call setTransactionIsolation(Connection.TRANSACTION_READ_COMMITTED).
Isn't that supposed to guarantee that a reader can only read what is committed ?
And if a row is in "flux"... in the process of having one or more values changed, then the database cannot say what the value will be ?
I can almost see what you are saying.
In letting the reader have what it wants without making it wait, I suppose it could be said that Oracle is holding true to the "only let committed data be read"
So if that's it, then what if I want the blocking ?
I want an entire row to be locked until whoever it in the middle of updating, adding, or removing it has finished.
Do you know if that can be done with Oracle ? And how ?
Thanks again for helping me.

Wireless does not hold connection with b43 driver!

Hi everybody!!
It's my first time here in the forum, so nice to meet you.
I have a laptop Acer Aspire 3050 and I recently formatted it to install the new Arch 2009.08.
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It recognizes the driver, loads it and connect with no problems, but when I ping my desktop machine, it says that unfortunate message "Destination Host Unreachable"
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ping 192.168.0.1 >>> Destination Host Unreachable
ifconfig wlan0 down
rmmod b43
/etc/rc.d/network restart
modprobe b43
./connect
[... many more times]
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Hear goes some info on configuration files so it may help you:
lspci -vk
08:04.0 Network controller: Broadcom Corporation BCM4318 [AirForce One 54g] 802.11g Wireless LAN Controller (rev 02)
Subsystem: AMBIT Microsystem Corp. TravelMate 2410
Flags: bus master, fast devsel, latency 64, IRQ 21
Memory at d0200000 (32-bit, non-prefetchable) [size=8K]
Kernel driver in use: b43-pci-bridge
Kernel modules: ssb
lsmod | grep "b43"
b43 137208 0
mac80211 155532 1 b43
cfg80211 90428 2 b43,mac80211
ssb 45988 1 b43
pcmcia 36168 2 b43,ssb
pcmcia_core 35184 5 b43,yenta_socket,rsrc_nonstatic,ssb,pcmcia
led_class 4000 3 b43,sdhci,acer_wmi
/etc/rc.conf
MOD_AUTOLOAD="yes"
#MOD_BLACKLIST=() #deprecated
MODULES=(!b43 !ndiswrapper)
#Static IP example
#eth0="eth0 192.168.0.2 netmask 255.255.255.0 broadcast 192.168.0.255"
#eth0="dhcp"
INTERFACES=()
gateway="default gw 192.168.0.1"
ROUTES=(!gateway)
DAEMONS=(syslog-ng network netfs crond hal)
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I'm using the driver from the wiki (http://mirror2.openwrt.org/sources/broa … .5.tar.bz2) and did not try with only ndiswrapper. It's because I want to have all functionalities from criptography and... after all, it was supposed to work, wasn't it?
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So, the same problem occurred and in a relatively shorter time than before. I began to think that something is causing this problem.
My theory is that it is a VMWare software issue. What I've been doing differently recently is using it in "Unity" mode as opposed to "Full Screen" mode. My guess is that the program is modifying my wireless permissions and screwing it all up.
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I am not sure what is your URL parameter in the getConnection Method !
Check if the it is
jdbc:oracle:thin:@<ip-Add of server>:<port no>:<SID>
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jdbc:oracle:thin:@10.173.110.70:1521:cpmnc
Hope this works !
null

Proxy Authetication adn thin driver

Hello,
Can any one provide sample for proxy authetication using oracle 10g thin driver?
All I saw oci samples, and documentation says, thin can also perform proxy authetication...
Thanks in advance,
Shailesh

Hi,
yes you can use thin friver as well. I am using the 10.1.3 product stack and this works for me.
Frank

9iFSRe2 + API + connect with thin-Client

Hi,
I progam the iFS-APi to connect the iFS.
But under Windows i must install about 100MB.
Under Linux the size of libs i need to connet
about 10MB.
My Question is can i connect the iFS with
thin-Client dll?
thanks for Answer
bye

Place some debugging code and see if URL is null. Also, although it is nice practice, you don't need to catch every type of exception. Try (no pun intended):
catch (Exception e) {
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"My karma ran over your dogma." - Anon

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I have tried to use the tnsname syntax for the thin driver.
ORACLE_HOME points to the right home, but I always get an E/A-Exception: Unknown host specified.
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)The URL: jdbc:oracle:thin:@medora
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Sascha

Problem with thin driver connection from servlet

i'm using a servlet and i'm trying to connect to Oracle using the syntax below. but i get an error.
DriverManager.registerDriver (new oracle.jdbc.driver.OracleDriver());
Connection conn = DriverManager.getConnection
("jdbc:oracle:thin:@qit-uq-cbiw:1526:orcl", "scott", "tiger");
// @machineName:port:SID, userid, password
the error...
Class oracle.jdbc.driver.OracleDriver not found.
DriverManager.registerDriver (new oracle.jdbc.driver.OracleDriver());
^
1 error
i guess the question is, what should be in place of
oracle.jdbc.driver.OracleDriver());

Here is what I use:
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Hi All
I am using WinNT and Tomcat installed on it
I have jdk1.3 . Loaded classes111.zip after unzipping and included all classes in classpath of the m/c .
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at oracle.jdbc.dbaccess.DBError.check_error(DBError.java:407)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:152)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.ja
va:214)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:193)
at java.sql.DriverManager.getConnection(DriverManager.java:517)
The code that gives error is following..
import java.sql.*;
import java.io.*;
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private String myDriver="oracle.jdbc.driver.OracleDriver";
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String User="scott";
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//("jdbc:oracle:dnldthin:@localhost:1521:orcl","TomA","caffeine");
public Connection myConn;
public ConnectionBean() {}
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public Connection getConnection() throws Exception {
System.out.println(" Inside getConnection");
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System.out.println("After class.forname");
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myConn = DriverManager.getConnection(myURL,User,Pass);
System.out.println("After getConnection(m");
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public void takeDown() throws Exception {
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Line that thows the error in this code is..
myConn = DriverManager.getConnection(myURL,User,Pass);
If anyone can tell me what is the problem and what is its resolution..
Thanks
null

mohitmm stated :
classes12.zip is same as classes102.zip
totally false !!
there is a naming pattern or convention being used for the ORACLE claases based upontheir JDK versions.
JDK 1.0.2 --> is the basis for the classes102.zip file
JDK 1.1.x --> is the basis for the classes111.zip file
JDK 1.2.x --> is the basis for the classes12.zip file.
JDBC drivers based upon jdk 1.2.x were first released with the rdbms 8.1.6 SDK and 8.1.6 platforms and they continue to be released with the rdbms 8.1.7 platform.
i hope this helps ...

Proxy Connection with thin driver

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