Persistent connection to oracle

Hi,
Is any way that ODP.NET can provide persistent connection to oracle database?
Thanks in advance.
Qiguang

David,
Thank you for your reply.
We have a stored procedure that output a ref_cursor generated from a global temp table.
When I try to populate the ref_cursor, I got ora-8103 error.
I can use OO4O to run the same procedure and get data back.
This error let me wonder it ODP.NET provide persistent connection (or single session connection) to oracle.
Also, If I use MS provider for oracle, either for COM+ or .NET, they always get the error.
Do you have any solution for this issue?
Thank you very much.
William.

Similar Messages

Excel-2007 cannot connect to Oracle ODBC data source, Control Panel can.


I cannot make an ODBC connection from Exce-2007 to Oracle work. I am an expert Excel and VBA user (since 1994) and I have frequently used Excel to access ODBC databases, including Oracle (I have done this with Excel-2003 both with worksheet queries and have written VBA ADO-connection routines). And even though in Excel-2007 a worksheet ODBC query is supposed to be easier to create than in previous version of Excel, my connection fails. Any suggestions and all help are welcome and much appreciated.
DETAILS


1) What is my system? I am using Excel-2007 on Windows Vista x64 and Oracle server v.11g on my computer (all this is on my computer, no network issues).
2) Why use Excel with Oracle at all? I use Excel-2007 to access Oracle rather than Access-2007 (or any other application like TOAD, etc.) because I do engineering calculations with the data stored in Oracle. These calculations are easier done in Excel (I suppose that one alternative to this could be to use some sql or Access to get the data from the database, then store it as plain vanilla CSV file, then open this file in Excel, then do the math (the math involves complex optimisation algorithms), then save the results as CSV, then use some sql or Access to put the data back into the database. Howwever this does not strike me as a quick or neat solution. And after all Excel has been designed to access ODBC databases, so why not use it?)
3) What do I do in Excel-2007 that won't work? I create an ODBC link to Oracle that does not work. In Excel-2007 this is straightforward:

<ul>
<li>define an ODBC connection (Data tab --> From other sources --> From data connection wizard);</li>
<li>define a query on the worksheet -- that's it, this is all!</li>
</ul>

I start with creating an ODBC connection:
a) I choose an ODBC data source type: ODBC DSN
b) Excel-2007 displays the list of the available ODBC data sources. I see in it my Oracle database name and I select it.
c) Excel-2007 displays the Data Link Properties:
- the "Provider" has a list of the OLE DB drivers with preselected "Microsoft OLE DB Provider for ODBC Drivers". I keep this default selection.
- the "Connection" tab has a connection string "DSN=<my database name>" which I keep, it also has fields for the user name and the password, which I fill with the correct credentials.
- Finally there is a button "Test Connection", which when I click produces the following error message:
"Test connection failed because of an error in initializing provider. 
Unespecified error"

4) Additional food for thought:
a) In the above walk-through the only data, which I type, are the user name and password, everything else is selected from lists offered by Excel-2007, hence any possibility of typos being the cause of the problem can safely be discarded.
b) I can test the ODBC driver in the Control Panel and it shows that it can connect to the Oracle database:
- in Control Panel --> Admin Tools --> Data Sources (ODBC) on the "User DSN" tab I can see the list of the available ODBC data sources (same list as in Excel-2007, point 3b above) with the name of my database in it;
- selecting the name of my database from the list of the sources and clicking "Configure" button opens a tab with Data Source Name (same as in Excel-2007), TNS Service Name and User ID. I enter <user name>/<password> and click "Test Connection" button. A message "Connection successful" appears (just for a test I enter incorrect user credentials and "Unable to connect" message appears)
BOTTOM LINE


The procedure for using an ODBC connection from Excel is very simple, in the past I have created and used such connections numerous times with Excel-2003 and earlier on Win-XP and earlier. But now on Excel-2007 and Vista-x64 I cannot make it work.
Also, testing an ODBC connection driver is really easy and simple to be done in the Control Panel. There testing the same ODBC connection, which fails in Excel-2007, results in success.
I am frustrated by the simplicity of the problem and yet the persistant error. I have lost now two full days in failed attempts to make the simple procedure work and in searching the internet for answers.
All help is highly appreciated <img class="emoticon" src="images/emoticons/happy.gif" border="0" alt="" width="16" height="16" />,
Plamen


Did you find the solution to your problem?
If not, I think I may know.
Excel 2007 is a 32-bit application.
When installing 32-bit applications in a 64-bit environment, the "default" location is:
C:\Program files (x86)\...
Excel then launches from this location.
However, when it connects to Oracle and passes the name of the calling program, Oracle attempts to "interpret" the value of (x86) as if
the value within the parenthesis are being passed as a reference. Of course, iOracle doesn't find anything, so the result is (),
and then it cannot return the connection info back to the calling application.
I corrected it by installing Excel in C:\Program Files\, and once launched from that location, it works the same as on the 32-bit machines.
However, at my location, they are FORCING Excel to be installed in the(x86) location.
What I'm trying to discover now is:
Is it possible to flag Oracle to NOT process the embedded variables?
Or, is it possible to assign a variable in Oracle such that x86 = "(x86)", so that the end result is viable?
Have you had any luck with your installation?
thanks,
Paul

VB6 source code cannot connect to Oracle database after compile to file.exe

Hi All,
I have a problem about VB6 connect with Oracle database. It can connect as normal when run on VB program. After compiled to file.exe and execute, it cannot connect to Oracle database. What's going on ? Please advise? Thank you.
Here is sample of my code connection.
Option Explicit
Private wsData As New ADODB.Connection
wsData.ConnectionString = _
"Provider=MSDAORA.1;User ID=lsp;Password=lsp2007;Data Source=prd01;Persist Security Info=False"
wsData.Open
End sub
Rgads,
Ats.

Hi,
I believe you're in the wrong forum, this forum is for Oracle Application Express.

Sun Ray error when connecting to Oracle VDI - No Kiosk Sessions Available

When the Sun Ray DTUs go to connect to the Oracle VDI cluster at times they will throw the error "Error starting Kiosk session: No Kiosk accounts configured." We have tried going through the steps to confirm that the Kiosk sessions are configured on the two secondary hosts but the problem persists. When the Sun Ray DTUs do connect they will work for a while and then when left idle for a period of time will loose their connection and be unable to restart the connection with the error mentioned. The Screen Blanking option on the Sun Ray DTUs is set to "0" to prevent them from going into power-save mode but this makes no difference. The Sun Ray DTUs are all updated with the latest GUI firmware and there are no custom options set in the Sun Ray Session Servers.
The thing that bothers me the most is I have not seen any error messages in the logs. I will post up the logs as links in a follow-up post.
Has anyone had any similar issues while connecting with a Sun Ray DTU?
Currently we are running Oracle VDI 3.2.1 on the cluster.
Here are the commands we used to reset the Sun Ray Kiosk accounts:
# /opt/SUNWkio/bin/kioskstatus -c
# /opt/SUNWkio/bin/kioskuseradm status
# /opt/SUNWkio/bin/kioskuseradm delete
# /opt/SUNWkio/bin/kioskuseradm create -l utku -g utkiosk -i auto -u –c

I was trying to transfer data from oracle to sql server 2008 on a daily basis.
I have very hard time connecting to oracle from ssis package on windows server 2008. I am almost dead and cannot find any help. i was able to connect to oracle using import/export 64 bit feature of SQL Server 2008 using Oracle provider for OLEDB. But I am not sure why the same does not work with BIDS?
Here's the environment info:
1. Oracle Client 10g
2. SQL Server 2008
3. Windows Server 2008
Appreciate your help. Please save me.
Thanks,

I can`t connect to Oracle 11g64bits on a WindowsServer2008R264bits from ASP

Hi,
I am trying to connect to Oracle 11g 64 bits on a Windows Server 2008 R2 64 bits from ASP.
But I can´t no matter what kind of provider or connect string I use.
Please see this little video to better understanding. https://www.dropbox.com/s/cq7lx08nfad24yy/Oracle%20Connection%20Error.wmv
I will apreciatte any help I have not ideia what is happening...
This is my ASP code:
Imports System.Data.OleDb
Imports System.Data.OracleClient
Public Class _Default
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim cnn As OleDbConnection = New OleDbConnection()
'SqlServer connection
'cnn.ConnectionString = "Provider=sqloledb;Data Source=localhost;Persist Security Info=False;User ID=sa;Password=creative;Initial Catalog=DW_Decision;"
'Oracle Connection
'cnn.ConnectionString = "Provider=OraOLEDB.Oracle.1;Data Source=orcl64;Persist Security Info=False;User ID=scott;Password=creative;"
'cnn.ConnectionString = "Provider=msdaora;Data Source=orcl64;User ID=scott;Password=creative;"
'cnn.Open()
'Label1.Text = "OK conexion"
'cnn.Close()
Dim cnn2 As OracleConnection = New OracleConnection()
'Oracle Connection
'cnn2.ConnectionString = "Data Source=orcl64;Integrated Security=yes;"
cnn2.ConnectionString = "Data Source=orcl64;User Id=scott;Password=creative;Integrated Security=no;"
cnn2.Open()
Label1.Text = "OK conexion"
cnn2.Close()
End Sub
End Class
Edited by: 880676 on Feb 7, 2013 10:12 AM

Ok, I already installed the Oracle Client 32 in another folder.
What reference must I include in the page?
Currently I am using: Imports System.Data.OracleClient
And what connect string should I use?, please see all options I tried...
Thanks in advance,
Imports System.Data.OleDb
Imports System.Data.OracleClient
Public Class _Default
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim cnn As OleDbConnection = New OleDbConnection()
'SqlServer connection
'cnn.ConnectionString = "Provider=sqloledb;Data Source=localhost;Persist Security Info=False;User ID=sa;Password=creative;Initial Catalog=DW_Decision;"
'Oracle Connection
'cnn.ConnectionString = "Provider=OraOLEDB.Oracle.1;Data Source=orcl64;Persist Security Info=False;User ID=scott;Password=creative;"
'cnn.ConnectionString = "Provider=msdaora;Data Source=orcl64;User ID=scott;Password=creative;"
'cnn.Open()
'Label1.Text = "OK conexion"
'cnn.Close()
Dim cnn2 As OracleConnection = New OracleConnection()
'Oracle Connection
'cnn2.ConnectionString = "Data Source=orcl64;Integrated Security=yes;"
cnn2.ConnectionString = "Data Source=orcl64;User Id=scott;Password=creative;Integrated Security=no;"
cnn2.Open()
Label1.Text = "OK conexion"
cnn2.Close()
End Sub
End Class

Can we connect to oracle 9i using vb6.0 in 64 bit machine.

Can we connect to oracle 9i using vb6.0 in 64 bit machine.
Code i have written is
dim conn as new ADODB.Connection
conn.open("Provider=MSDAORA.1;password=pw;user id=usname;data source=dbname;Persist Security info=false")
but it is throwing an error saying
"Connection not open"
But the same code is working in vb.net.
Do we need to install any providers for 64 bit machine?

I have had no luck doing this in the 64-bit ODAC or otherwise. If anybody succeeds I would love to hear about it. My experience follows for those interested:
I am trying to migrate some working VB6 code from Windows 2000 Server to 64-bit Windows Server 2003 but can't get the OLEDB connection to Oracle to work.
In the working code (x86 environment), I am using ADO 2.8 and Microsoft OLEDB Provider for Oracle (MSDAORA). Since the Microsoft OLEDB provider for Oracle is no longer supported or available on Windows Server 2003 x64, I tried to use the 32-bit Oracle OLEDB provider in ODAC 10.2 but may have run into the parsing bug posted on MSDN (http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=159581). Next, I successfully installed the beta 64-bit version of ODAC 10.2, but when I try to open the connection I receive "Error 3706 Provider cannot be found. It may not be properly installed." However, I can successfully TNSPing the data source.
Windows Server 2003 x64 (not Itanium)
Oracle Enterprise 9.2
Microsoft Visual Basic 6
Microsoft ADO 2.8 (Objects & Recordset references)
Oracle OLEDB Provider (ODAC 10.2, 64-bit)
Code Snippet:
Set m_dbConn = New ADODB.Connection
With m_dbConn
.ConnectionString = "Provider=OraOLEDB.Oracle;Data Source=oplprod; User ID=myid; Password=mypwd;"
.ConnectionTimeout = 10
.CursorLocation = adUseClient
.Open
End With

Secured persistent connection - RTMPS

Hi,
I'm pretty new to Actionscript and I'm trying to find ways to
have some means of communication between a server and a flash
client (written using Actionscript 2.0). The flash client needs to
be able to handle unsolicited requests from the server. I can do
this with XMLSocket, but I can't find ways to secure the channel
without installing additional components (stunnel) on the client
machine. I can also do this with Actionscript 3.0 using RTMPS
(using red5) as the server. However, Actionscript 2.0 does not
appear to have full support for RTMP. The NetConnection class in
Actionscript 2.0 is a lot skinnier than in Actionscript 2.0.
Any thoughts on this? Is there anyway I can have a
bidirectional secured persistent channel between a flash client
(Actionscript 2.0) and a server?
Thanks for your help.

David,
Thank you for your reply.
We have a stored procedure that output a ref_cursor generated from a global temp table.
When I try to populate the ref_cursor, I got ora-8103 error.
I can use OO4O to run the same procedure and get data back.
This error let me wonder it ODP.NET provide persistent connection (or single session connection) to oracle.
Also, If I use MS provider for oracle, either for COM+ or .NET, they always get the error.
Do you have any solution for this issue?
Thank you very much.
William.

Persists Connection Pool Property ?

Hi All,
what is Persists Connection Pool Property ?

enabling PERSITANCE CONNECTION POOL under CONNECTION POOL in RPD is used by Marketing cache and to resolve [nQSError: 42029] Subquery contains too many values for the IN predicate.
By enabling above, BIServer Stores a nonfunction subquery in a temporary table and then rewrites the original subquery result against this table. This Reduces data movement between the Oracle BI Server and the database and supports unlimited IN list values and might result in improved performance.
NOTE: In these situations, the user issuing the logical SQL needs to have been granted the Populate privilege on the target database.
Sarath G

HTTP persistent connection (keep Alive) problem

Hi,
I'm trying to deploy a RPC web service and I would like to use the HTTP 1.1 keep alive feature (which should be the default).
I generated the server side and client side code using jdev 903. The AS is OC4j 903.
The problem is that the server is sending a âConnection: close:â header in the SOAP response, despite the client sending a âConnection: keep-aliveâ header in the request. This is obviously causing the client to close the connection and open another for the next message.
The documentation implies that the server will always try to use persistent connections, even so, in the file:
<OC4J_HOME>/j2ee/home/config/http-web-site.xml
there is a config option âuse-keep-alivesâ. Setting this to true has no effect.
Iâm guessing there must be another option somewhere to turn on connection persistence.
Can anyone please help ?

Does anyone know whether Oracle Supports persistent connections ?
I tested this on JBOSS and I seems to get better performance.
cheers.

Error while creating a JDBC connection to Oracle 11g using WLS 6.1

Hi
I am trying to connect to Oracle 11g database on Weblogic 6.1 server.
First of all i would like to know if this is compatible?
The environement that i have is this
1. JDK 1.3
2. Database 11g is on remote system
3. Oracle client on my local system ( Connecting to the 11g DB through the client works fine)
4. Weblogic server 6.1
5. Currently the application is connected to Oracle 10g DB and working fine(We are attempting to move it to 11g)
Below are the steps that i followed to create the connection:
1. Made an entry for the datasource in config.xml under <WLS_DOMAIN>/config folder as below
<JDBCConnectionPool DriverName="oracle.jdbc.driver.OracleDriver"
MaxCapacity="4" Name="CADConnectionPool"
Properties="user=abc_proxy;password=proxy_abc;dll=ocijdbc8;protocol=thin"
RefreshMinutes="5" ShrinkPeriodMinutes="10" Targets="CAsvr"
TestConnectionsOnRelease="true" TestConnectionsOnReserve="true"
TestTableName="dual" URL="jdbc:oracle:thin:@gen11t-ora.db.lab.xyz.com:1530:GEN11T"/>
2. Restarted the server.
3. Ran the application and get the following error on the server console:
<Aug 22, 2011 12:39:42 AM CDT> <Error> <JDBC> <Cannot startup connection pool "C
ADConnectionPool" weblogic.common.ResourceException:
Could not create pool connection. The DBMS driver exception was:
java.lang.ArrayIndexOutOfBoundsException
at oracle.security.o3logon.C0.r(C0)
at oracle.security.o3logon.C0.l(C0)
at oracle.security.o3logon.C1.c(C1)
at oracle.security.o3logon.O3LoginClientHelper.getEPasswd(O3LoginClientH
elper)
at oracle.jdbc.ttc7.O3log.<init>(O3log.java:289)
at oracle.jdbc.ttc7.TTC7Protocol.logon(TTC7Protocol.java:251)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:246)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.ja
va:365)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:260)
at weblogic.jdbc.common.internal.ConnectionEnvFactory.makeConnection(Con
nectionEnvFactory.java:193)
at weblogic.jdbc.common.internal.ConnectionEnvFactory.createResource(Con
nectionEnvFactory.java:134)
at weblogic.common.internal.ResourceAllocator.makeResources(ResourceAllo
cator.java:705)
at weblogic.common.internal.ResourceAllocator.<init>(ResourceAllocator.j
ava:282)
at weblogic.jdbc.common.internal.ConnectionPool.startup(ConnectionPool.j
ava:650)
at weblogic.jdbc.common.JDBCService.addDeployment(JDBCService.java:107)
at weblogic.management.mbeans.custom.DeploymentTarget.addDeployment(Depl
oymentTarget.java:360)
at weblogic.management.mbeans.custom.DeploymentTarget.addDeployments(Dep
loymentTarget.java:285)
at weblogic.management.mbeans.custom.DeploymentTarget.updateServerDeploy
ments(DeploymentTarget.java:239)
at weblogic.management.mbeans.custom.DeploymentTarget.updateDeployments(
DeploymentTarget.java:199)
at java.lang.reflect.Method.invoke(Native Method)
at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMB
eanImpl.java:636)
at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl
.java:621)
at weblogic.management.internal.ConfigurationMBeanImpl.invoke(Configurat
ionMBeanImpl.java:360)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:15
57)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:15
25)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:468)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:209)
at $Proxy31.updateDeployments(Unknown Source)
at weblogic.management.configuration.ServerMBean_CachingStub.updateDeplo
yments(ServerMBean_CachingStub.java:2977)
at weblogic.management.mbeans.custom.ApplicationManager.startConfigManag
er(ApplicationManager.java:372)
at weblogic.management.mbeans.custom.ApplicationManager.start(Applicatio
nManager.java:160)
at java.lang.reflect.Method.invoke(Native Method)
at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMB
eanImpl.java:636)
at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl
.java:621)
at weblogic.management.internal.ConfigurationMBeanImpl.invoke(Configurat
ionMBeanImpl.java:360)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:15
57)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:15
25)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:468)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:209)
at $Proxy42.start(Unknown Source)
at weblogic.management.configuration.ApplicationManagerMBean_CachingStub
.start(ApplicationManagerMBean_CachingStub.java:480)
at weblogic.management.Admin.startApplicationManager(Admin.java:1234)
at weblogic.management.Admin.finish(Admin.java:644)
at weblogic.t3.srvr.T3Srvr.start(T3Srvr.java:524)
at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:207)
at weblogic.Server.main(Server.java:35)
at weblogic.jdbc.common.internal.ConnectionEnvFactory.makeConnection(Con
nectionEnvFactory.java:209)
at weblogic.jdbc.common.internal.ConnectionEnvFactory.createResource(Con
nectionEnvFactory.java:134)
at weblogic.common.internal.ResourceAllocator.makeResources(ResourceAllo
cator.java:705)
at weblogic.common.internal.ResourceAllocator.<init>(ResourceAllocator.j
ava:282)
at weblogic.jdbc.common.internal.ConnectionPool.startup(ConnectionPool.j
ava:650)
at weblogic.jdbc.common.JDBCService.addDeployment(JDBCService.java:107)
at weblogic.management.mbeans.custom.DeploymentTarget.addDeployment(Depl
oymentTarget.java:360)
at weblogic.management.mbeans.custom.DeploymentTarget.addDeployments(Dep
loymentTarget.java:285)
at weblogic.management.mbeans.custom.DeploymentTarget.updateServerDeploy
ments(DeploymentTarget.java:239)
at weblogic.management.mbeans.custom.DeploymentTarget.updateDeployments(
DeploymentTarget.java:199)
at java.lang.reflect.Method.invoke(Native Method)
at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMB
eanImpl.java:636)
at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl
.java:621)
at weblogic.management.internal.ConfigurationMBeanImpl.invoke(Configurat
ionMBeanImpl.java:360)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:15
57)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:15
25)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:468)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:209)
at $Proxy31.updateDeployments(Unknown Source)
at weblogic.management.configuration.ServerMBean_CachingStub.updateDeplo
yments(ServerMBean_CachingStub.java:2977)
at weblogic.management.mbeans.custom.ApplicationManager.startConfigManag
er(ApplicationManager.java:372)
at weblogic.management.mbeans.custom.ApplicationManager.start(Applicatio
nManager.java:160)
at java.lang.reflect.Method.invoke(Native Method)
at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMB
eanImpl.java:636)
at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl
.java:621)
at weblogic.management.internal.ConfigurationMBeanImpl.invoke(Configurat
ionMBeanImpl.java:360)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:15
57)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:15
25)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:468)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:209)
at $Proxy42.start(Unknown Source)
at weblogic.management.configuration.ApplicationManagerMBean_CachingStub
.start(ApplicationManagerMBean_CachingStub.java:480)
at weblogic.management.Admin.startApplicationManager(Admin.java:1234)
at weblogic.management.Admin.finish(Admin.java:644)
at weblogic.t3.srvr.T3Srvr.start(T3Srvr.java:524)
at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:207)
at weblogic.Server.main(Server.java:35)
Can't load scjd12.dll, file not found java.library.path=C:\jdk1.3.1_11\bin;.;C:\WINDOWS\system32;C:\WINDOWS;.\bin;C:\P
rogram Files\Lotus\Notes\Data;C:\Program Files\Lotus\Notes;C:\Program Files\Java
\jre1.5.0_17\bin;C:\Program Files\Java\j2re1.4.2_06\bin;C:\Oracle\bin;C:\Program
Files\Oracle\jre\1.3.1\bin;C:\Program Files\Oracle\jre\1.1.8\bin;C:\WINDOWS\sys
tem32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\system32\nls;C:\WINDOWS\sys
tem32\nls\ENGLISH;C:\Program Files\QuickTime\QTSystem\;C:\Program Files\Rational
\common;C:\Program Files\Rational\ClearCase\bin;C:\apache-ant-1.6.5\bin;C:\jdk1.
3.1_11\bin;C:\Program Files\Citrix\ICAService\;C:\Program Files\Citrix\System32\
;Z:.
<Aug 22, 2011 12:38:06 AM CDT> <Info> <JDBC> <Sleeping in createResource()>
<Aug 22, 2011 12:38:07 AM CDT> <Error> <JDBC> <Cannot startup connection pool "c
ispool" weblogic.common.ResourceException:
Could not load 'com.neon.jdbc.Driver
If this is a type-4 JDBC driver, it could occur if the JDBC
driver is not in the system CLASSPATH.
If this is a type-2 JDBC driver, it may also indicate that
the Driver native layers(DBMS client lib or driver DLL)
have not been installed properly on your system
or in your PATH environment variable.
This is most likely caused by one of the following:
1. The native layer SO, SL, or DLL could not be found.
2. The file permissions on the native layer SO, SL, or DLL
have not been set properly.
3. The native layer SO, SL, or DLL exists, but is either
invalid or corrupted.
For more information, read the installation documentation
for your JDBC Driver, available from:
http://e-docs.bea.com
at weblogic.jdbc.common.internal.ConnectionEnvFactory.makeConnection(Con
nectionEnvFactory.java:212)
at weblogic.jdbc.common.internal.ConnectionEnvFactory.createResource(Con
nectionEnvFactory.java:134)
at weblogic.common.internal.ResourceAllocator.makeResources(ResourceAllo
cator.java:705)
at weblogic.common.internal.ResourceAllocator.<init>(ResourceAllocator.j
ava:282)
at weblogic.jdbc.common.internal.ConnectionPool.startup(ConnectionPool.j
ava:650)
at weblogic.jdbc.common.JDBCService.addDeployment(JDBCService.java:107)
at weblogic.management.mbeans.custom.DeploymentTarget.addDeployment(Depl
oymentTarget.java:360)
at weblogic.management.mbeans.custom.DeploymentTarget.addDeployments(Dep
loymentTarget.java:285)
at weblogic.management.mbeans.custom.DeploymentTarget.updateServerDeploy
ments(DeploymentTarget.java:239)
at weblogic.management.mbeans.custom.DeploymentTarget.updateDeployments(
DeploymentTarget.java:199)
at java.lang.reflect.Method.invoke(Native Method)
at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMB
eanImpl.java:636)
at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl
.java:621)
at weblogic.management.internal.ConfigurationMBeanImpl.invoke(Configurat
ionMBeanImpl.java:360)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:15
57)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:15
25)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:468)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:209)
at $Proxy31.updateDeployments(Unknown Source)
at weblogic.management.configuration.ServerMBean_CachingStub.updateDeplo
yments(ServerMBean_CachingStub.java:2977)
at weblogic.management.mbeans.custom.ApplicationManager.startConfigManag
er(ApplicationManager.java:372)
at weblogic.management.mbeans.custom.ApplicationManager.start(Applicatio
nManager.java:160)
at java.lang.reflect.Method.invoke(Native Method)
at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMB
eanImpl.java:636)
at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl
.java:621)
at weblogic.management.internal.ConfigurationMBeanImpl.invoke(Configurat
ionMBeanImpl.java:360)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:15
57)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:15
25)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:468)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:209)
at $Proxy42.start(Unknown Source)
at weblogic.management.configuration.ApplicationManagerMBean_CachingStub
.start(ApplicationManagerMBean_CachingStub.java:480)
at weblogic.management.Admin.startApplicationManager(Admin.java:1234)
at weblogic.management.Admin.finish(Admin.java:644)
at weblogic.t3.srvr.T3Srvr.start(T3Srvr.java:524)
at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:207)
at weblogic.Server.main(Server.java:35)
Would like some help on this asap as the project is in critical stage.
Thanks

The driver being used by your weblogic is too old and incompatible with the DBMS. Upgrade the driver.

Client unable to connect to Oracle 10g on linux

I have installed Oracle 10g on an Intel box running RedHat AS 3.0. The database installation was succesful but I am unable to connect to it from the client on my laptop running Oracle 10g client and Winfdows XP Pro. The server ip is 192.168.1.10 and I can ping it from the client:
C:\>ping attila.n3kje.net
Pinging attila.n3kje.net [192.168.1.10] with 32 bytes of data:
Reply from 192.168.1.10: bytes=32 time<1ms TTL=64
Reply from 192.168.1.10: bytes=32 time<1ms TTL=64
Reply from 192.168.1.10: bytes=32 time<1ms TTL=64
Reply from 192.168.1.10: bytes=32 time<1ms TTL=64
Ping statistics for 192.168.1.10:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
Here is some info about the 2 environments:
[oracle@attila bin]$ uname -a
Linux attila.n3kje.net 2.4.21-9.0.1.ELsmp #1 SMP Mon Feb 9 22:26:51 EST 2004 i686 i686 i386 GNU/Linux
Server hosts file
======================================================
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 attila.n3kje.net attila localhost.localdomain localhost
hostname output
======================================================
[root@attila root]# hostname
attila.n3kje.net
ifconfig output
=======================================================
[root@attila root]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:C0:9F:1D:0C:C8
inet addr:192.168.1.10 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:13772171 errors:0 dropped:0 overruns:0 frame:0
TX packets:13748842 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1269613311 (1210.7 Mb) TX bytes:4065314800 (3876.9 Mb)
Interrupt:16 Base address:0xecc0 Memory:fe100000-fe120000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:5513840 errors:0 dropped:0 overruns:0 frame:0
TX packets:5513840 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:865454291 (825.3 Mb) TX bytes:865454291 (825.3 Mb)
Client TNSNAMES.ORA
======================================================
# tnsnames.ora Network Configuration File: C:\Oracle\product\10.1.0\Client_1\NETWORK\ADMIN\tnsnames.ora
# Generated by Oracle configuration tools.
ORACLE10G =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.10)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = DEV10G)
PRDSRR =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.10)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = dev10g)
Client SQLNET.ORA
======================================================
# sqlnet.ora Network Configuration File: C:\Oracle\product\10.1.0\Client_1\network\admin\sqlnet.ora
# Generated by Oracle configuration tools.
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (EZCONNECT, TNSNAMES)
Server TNSNAMES.ORA
======================================================
# tnsnames.ora Network Configuration File: /u01/app/oracle/product/10.1.0/db_1/n
etwork/admin/tnsnames.ora
# Generated by Oracle configuration tools.
DEV10G =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = attila.n3kje.net)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = DEV10G)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
Server LISTENER.ORA
======================================================
# listener.ora Network Configuration File: /u01/app/oracle/product/10.1.0/db_1/n
etwork/admin/listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u01/app/oracle/product/10.1.0/db_1)
(PROGRAM = extproc)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = attila.n3kje.net)(PORT = 1521))
Results from the TNSPING command issued at the client
=================================================================
C:\>tnsping prdsrr
TNS Ping Utility for 32-bit Windows: Version 10.1.0.2.0 - Production on 02-APR-2
004 09:26:11
Copyright (c) 1997, 2003, Oracle. All rights reserved.
Used parameter files:
C:\Oracle\product\10.1.0\Client_1\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)
(HOST = 192.168.1.10)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = dev10g)))
TNS-12541: TNS:no listener
C:\>tnsping oracle10g
TNS Ping Utility for 32-bit Windows: Version 10.1.0.2.0 - Production on 02-APR-2
004 09:26:38
Copyright (c) 1997, 2003, Oracle. All rights reserved.
Used parameter files:
C:\Oracle\product\10.1.0\Client_1\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)
(HOST = 192.168.1.10)(PORT = 1521))) (CONNECT_DATA = (SERVER = DEDICATED) (SERVI
CE_NAME = DEV10G)))
TNS-12541: TNS:no listener
C:\>
Trying to connect to the database from the server
==================================================
[oracle@attila bin]$ echo $ORACLE_SID
DEV10G
[oracle@attila bin]$ ./sqlplus system
SQL*Plus: Release 10.1.0.2.0 - Production on Fri Apr 2 12:22:29 2004
Copyright (c) 1982, 2004, Oracle. All rights reserved.
Enter password:
Connected to:
Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL> exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Pr
oduction
With the Partitioning, OLAP and Data Mining options
[oracle@attila bin]$ ./sqlplus system@dev10g
SQL*Plus: Release 10.1.0.2.0 - Production on Fri Apr 2 12:23:09 2004
Copyright (c) 1982, 2004, Oracle. All rights reserved.
Enter password:
ERROR:
ORA-12154: TNS:could not resolve the connect identifier specified
tnsping issued at the server
======================================================
[oracle@attila bin]$ tnsping dev10g
TNS Ping Utility for Linux: Version 10.1.0.2.0 - Production on 02-APR-2004 12:3
:44
Copyright (c) 1997, 2003, Oracle. All rights reserved.
Used parameter files:
/u01/app/oracle/product/10.1.0/db_1/network/admin/sqlnet.ora
TNS-03505: Failed to resolve name
What am I doing wrong?
Thanks
Renato

Ok, I was able to succesfully connect to the database from the client. I made the following changes to the sqlnet.ora, tnsnames and listener. Here are the changes I made:
sqlnet.ora
==============================
# SQLNET.ORA Network Configuration File: /u01/app/oracle/product/9.2.0.1.0/netwo
rk/admin/sqlnet.ora
# Generated by Oracle configuration tools.
# NAMES.DIRECTORY_PATH= (EZCONNECT)
NAMES.DIRECTORY_PATH= (EXCONNECT, TNSNAMES, ONAMES, HOSTNAME)
listener.ora
==============================
# listener.ora Network Configuration File: /u01/app/oracle/product/10.1.0/db_1/n
etwork/admin/listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u01/app/oracle/product/10.1.0/db_1)
(PROGRAM = extproc)
(SID_DESC =
(GLOBAL_DBNAME = DEV10G)
(ORACLE_HOME = /u01/app/oracle/product/10.1.0/db_1)
(SID_NAME = DEV10G)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.10)(PORT = 1521))
tnsnames.ora
===========================================
# tnsnames.ora Network Configuration File: /u01/app/oracle/product/10.1.0/db_1/n
etwork/admin/tnsnames.ora
# Generated by Oracle configuration tools.
DEV10G =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.10)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = DEV10G)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
Here is the new problem!
I start the dbconsole using the folowing command:
[oracle@attila bin]$ ./emctl start dbconsole
TZ set to US/Eastern
Oracle Enterprise Manager 10g Database Control Release 10.1.0.2.0
Copyright (c) 1996, 2004 Oracle Corporation. All rights reserved.
http://attila.n3kje.net:5500/em/console/aboutApplication
Starting Oracle Enterprise Manager 10g Database Control ........................
... started.
Logs are generated in directory /u01/app/oracle/product/10.1.0/db_1/attila.n3kje
.net_DEV10G/sysman/log
When I try and access it from the client I get the following error message:
"The database status is currently unavailable. It is possible that the database is in mount or nomount state. Click 'Startup' to obtain the current status and open the database. If the database cannot be opened, click 'Perform Recovery' to perform an appropriate recovery operation."
What am I doing wrong this time?
Your help would be greatly appreciated
Thanks
Renato

How do I connect to Oracle with JDBC using "dedicated processor".

Because of performance problems we want to try to connect to
oracle using dedicated processor. We can do this from SQL Plus,
does anybody know what we need to set up in order to utilize
this from JDBC?

Which Java runtime error? (stack trace?)

Trying to simply connect to Oracle with VBscript/ASP - and I cannot.

This is rather embarrassing. I am pretty fluent with ASP and VBscript, and I have written many a web application connecting to Microsoft SQL Server. Now I have a need to connect to an Oracle database, and I'm beating my head against the wall.
1) Web server is Windows Server 2003 SP1
2) Using ASP (not ASP.NET) & VBscript
3) I have installed the Oracle drivers on the server - it is version 10g
4) The administrator of the Oracle database to which I want to connect has created a username and password for me to use from within my code
5) Here is the code I am trying to run:
Set objConn = Server.CreateObject("ADODB.Connection")
objConn.Open "Provider=MSDAORA;Data Source=XXXXXXX;User Id=YYYYYYY;Password=ZZZZZZZ;"
That's it. 2 lines of code just trying to establish a connection. Using the user name and password provided to me by the administrator, and for Data Source I am using the IP address of the Oracle server (like I have done in the past when connecting to SQL Server). I receive the following error message when viewing this in a browser:
Microsoft OLE DB Provider for Oracle error '80004005'
ORA-12154: TNS:could not resolve the connect identifier specified
Evidently, the Data Source I am using is not correct, but I was provided no other information from the admin. This is the first time any of us have tried to connect to Oracle using ASP/VBScript, so the administrator isn't sure what I need to do ... any help would be so appreciated.

Hello,
I got mine to work by setting up an ODBC System DSN and connecting to it. I think this bypasses the Microsoft driver, which might be what's causing the problem.
Set Db = Server.CreateObject("ADODB.Connection")
Db.Open "DSN=TEST;User ID=userid;Password=password;"
Good luck, I've found it requires a lot of persistence...
Al
Springfield, MO

Not able to connect remote oracle database over VPN

I can not connect remote oracle database over VPN. tnsping is ok and it shows the server information of remote database. i can also telnet the 1521 port of remote database server. I can connect the same server when it is located in the same LAN. Please help me out this is very urgent.

6b6c669e-6baa-45c4-a6dc-444aef2d5e7a wrote:
I can not connect remote oracle database over VPN. tnsping is ok and it shows the server information of remote database. i can also telnet the 1521 port of remote database server. I can connect the same server when it is located in the same LAN. Please help me out this is very urgent.
First, this is a forum of volunteers. There is no "urgent" here.
"Urgent" means one of two things -
1) people are dying, or
2) you have a customer-facing, revenue-producing production system that is down.
(And to get some perspective on the second case, keep the first in mind.)
For the first, you call whatever civil emergency service seems appropriate.
For the second, you open an SR with Oracle - which requires a paid-up support contract. For *them* to consider your problem "urgent", you will need to demonstrate that your problem falls under item #2. I seriously doubt your problem fits that criteria.
You don't have a support contract? Now you know the exact dollar figure that your company places on the data.
That said, you need to understand a few things about your specific problem,
First, port 1521 is only used by the listener to accept a connection request. Once it gets that request (and finds that it is for a service (sid) that it knows about, it will fork a server process and tell the requesting client that it can communicate with that server process over some other port .. a randomly chosen port number in the "high" range. It could be your vpn is blocking that other port, whereas your internal firewall is not.
But this is just an educated guess since I cannot find "can not connect remote oracle database over VPN" in any error message manual. If you had mentioned the VPN along with an actual oracle error message we could be much more precise in our diagnoses and recommendations.
---- edit 22 Sep
It occurred to me that I just assumed you were using the same client machine in both cases ... a laptop that you use both at work (local network) and home (vpn). If that assumption is false, there are probably problems with your tns setup on the home (vpn) machine.
But again, it would be much easier to help if you gave us an actual error message.

Unable to connect to Oracle database running on Windows machine from linux.

Hi,
I'm not able to connect to oracle database running on Windows machine from Linux machine. I'm geting the below mentioned error. I have given below the code I used to connect to database and database propertes.Do I need to use any specific driver?
Please help me.
Thanks,
Sunjyoti
Code :
import oracle.jdbc.pool.OracleDataSource;
import java.sql.Connection;
import java.util.*;
import java.sql.*;
import java.io.*;
class try2{
public static void main(String args[]) {
try {
          System.out.println("hi");
// Load the properties file to get the connection information
Properties prop = new Properties();
prop.load(new FileInputStream("/home/sreejith/EDIReader/Connection.properties"));
// Create a OracleDataSource instance
OracleDataSource ods = new OracleDataSource();
System.out.println("prop is "+prop);
configureDataSource(ods, prop);
Connection conn=null;
// Create a connection object
conn = ods.getConnection();
     System.out.println("Connection is"+conn);
// Sets the auto-commit property for the connection to be false.
conn.setAutoCommit(false);
} catch (SQLException sqlEx){ // Handle SQL Errors
System.out.println("In exception "+sqlEx);
} catch(Exception excep) { // Handle other errors
System.out.println(" Exception "+ excep.toString());
private static void configureDataSource(OracleDataSource ods, Properties prop) {
// Database Host Name
ods.setServerName(prop.getProperty("HostName"));
// Set the database SID
ods.setDatabaseName(prop.getProperty("SID"));
// Set database port
ods.setPortNumber( new Integer( prop.getProperty("Port") ).intValue());
// Set the driver type
ods.setDriverType ("thin");
// Sets the user name
ods.setUser(prop.getProperty("UserName"));
// Sets the password
ods.setPassword(prop.getProperty("Password"));
Connection properties :
# Your Database Connection details
HostName = 10.20.3.19
SID = EDIREAD
Port = 1521
UserName = dbuser
Password = dbuser
Error I'm getting is
error while trying to connect with odbc datasource
[root@iflexpau2217 EDIReader]# java try2
hi
prop is {HostName=10.20.3.19, Password=dbuser, UserName=dbuser, SID=EDIREAD, Port=1521}
In exception java.sql.SQLException: Io exception: The Network Adapter could not establish the connection
Also I tried to connect with weblogic JDBC driver
Code is here:
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.sql.Blob;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
//import com.entrust.toolkit.util.ByteArray;
public class trial{
     public static void main(String args[]) throws IOException{
          System.out.println("hi");
          Connection p_conn = null;
          PreparedStatement xml_insert = null;
          try {
     // Load the JDBC driver
               System.out.println("hi2");
     // String driverName = "oracle.jdbc.driver.OracleDriver";
String driverName = "weblogic.jdbc.oracle.OracleDriver";
     System.out.println("hi2");
     Class.forName(driverName);
     // Create a connection to the database
     String serverName = "10.20.3.19";
     String portNumber = "1521";
     String sid = "EDIREAD";
     //String url = "jdbc:oracle:thin:@" + serverName + ":" + portNumber + ":" + sid;
String url = "jdbc:bea:oracle://10.20.3.19:1521";
     String username = "dbuser";
     String password = "dbuser";
System.out.println("connection is:"+p_conn+"user name is"+username+"password is"+password);
     p_conn = DriverManager.getConnection(url, username, password);
     System.out.println("connection is:"+p_conn+"user name is"+username+"password is"+password);
          xml_insert=p_conn.prepareStatement("insert into PRTB_SUBUNIT (SUBUNT_ID,SUBUNT_SUB_UNIT,SUBUNT_PHYUNT_ID) values (?,?,?)");
          //InputStream in=null;
          File l_file=new File("/home/sreejith/EDIReader/propertyfiles/inputfile/BUG_10802_ES_CSB19_68.txt");
          BufferedReader input =null;
          input=new BufferedReader(new FileReader(l_file));
          String line = null;
          StringBuffer trial=new StringBuffer();
          while (( line = input.readLine()) != null){
               trial.append(line);
               trial.append(System.getProperty("line.separator"));
          //InputStream is = new BufferedInputStream(new FileInputStream(l_file));
          System.out.println(trial.toString());
          //Blob b ;
          //byte[] bytes=trial.toString().getBytes();
          //System.out.println("Size-->"+bytes.length);
          xml_insert.setString(1,new String("SpecailChar"));
          //xml_insert.setBinaryStream(2,new ByteArrayInputStream(bytes),15920);
          xml_insert.setString(3,"SpecailChar");
          xml_insert.executeUpdate();
          p_conn.commit();
          } catch (ClassNotFoundException e) {
               System.out.println("ClassNotFoundException:"+e.getMessage());
          // Could not find the database driver
          } catch (SQLException e) {
               System.out.println("SQEXCEPTIN:"+e.getMessage());
          // Could not connect to the database
          }catch (FileNotFoundException e) {
               System.out.println("filenot found:"+e.getMessage());
          // Could not connect to the database
Error I'm getting is
error while trying with jdbc:
SQEXCEPTIN:[BEA][Oracle JDBC Driver]Error establishing socket to host and port: 10.20.3.19:1521. Reason: Connection refused

Is the Windows firewall active? Have you enabled the port on the firewall, if it is?

Persistent connection to oracle

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