Error while connecting to the database from a JSP Page

Hi,
I am using a simple JSP page which is based on the sample JSP pages from OTN.
When I try to connect to my database using the following code:
InitialContext ic = new InitialContext();
OracleDataSource ds = (OracleDataSource)ic.lookup("jdbc/OTN9iDS");
m_connection = ds.getConnection();
I get the following error:
Naming exception Error while connecting to the database : javax.naming.NameNotFoundException: jdbc/OTN9iDS not found in JDBCTest-JDBCTestProject-webapp
Does anybody know wht this is happening?
Any help would be appreciated
FRank

Hi Frank,
Are you using standalone OC4J or 9iAS ? If you are using standalone OC4J then you need to add a proper data source entry in %OC4J_HOME%j2ee\home\config\data-sources.xml file.
If you are using 9iAS the you can log in to the Enterprise Manager console and add the data source entry by using wizard provided by 9iAS.
Ensure the case of the JNDI lookup string, since, it is case sensitive.
Hope this helps.
Abhijeet

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Error while connecting to Access Database from Oracle

Dear All,
I'm trying to connect Oracle 9i to Access Database.
but im getting the below error while executing query.
ERROR at line 1:
ORA-28545: error diagnosed by Net8 when connecting to an agent
NCRO: Failed to make RSLV connection
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1) First i made odbc driver called ODBC1
2) I create the following file on oracle server C:\oracle\ora9I\hs\admin\initodbc1.ora
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(HS=OK)
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ODBC1 =
(DESCRIPTION =
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LISTENER =
(DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = admin-amc)(PORT = 1521))
    (DESCRIPTION =
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SID_LIST_LISTENER =
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LSNRCTL for 32-bit Windows: Version 9.2.0.1.0 - Production on 04-MAR-2012 21:26:16
Copyright (c) 1991, 2002, Oracle Corporation. All rights reserved.
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STATUS of the LISTENER
Alias                     LISTENER
Version                   TNSLSNR for 32-bit Windows: Version 9.2.0.1.0 - Production
Start Date                04-MAR-2012 20:52:33
Uptime                    0 days 0 hr. 33 min. 44 sec
Trace Level               off
Security                  OFF
SNMP                      OFF
Listener Parameter File   C:\oracle\ora9I\network\admin\listener.ora
Listener Log File         C:\oracle\ora9I\network\log\listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=admin-amc.tadawi.loc)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC2ipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=admin-amc.tadawi.loc)(PORT=8080))(Presentation=HTTP)(Session=RAW))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=admin-amc.tadawi.loc)(PORT=2100))(Presentation=FTP)(Session=RAW))
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Instance "ODBC1", status UNKNOWN, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "orcl" has 2 instance(s).
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Instance "orcl", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
The command completed successfullyi did exactly what documentation says and it will not through any error but atlast when i try to access the access database tables it give me the below error
SELECT * FROM DBO_COMPANY@MYSQL
ERROR at line 1:
ORA-28545: error diagnosed by Net8 when connecting to an agent
NCRO: Failed to make RSLV connection
ORA-02063: preceding 2 lines from MYSQLi'm using Oracle9i Enterprise Edition Release 9.2.0.1.0 any help will appreciate.
Regards
Moazam
Edited by: Moazam Shareef on Mar 4, 2012 10:25 AM

first of all thanks for your support Mr. Kgronau
I did what u said but still its giving me below error.
SQL> SELECT * FROM DBO_PATINS@MYSQL
2 ;
SELECT * FROM DBO_PATINS@MYSQL
ERROR at line 1:
ORA-12154: TNS:could not resolve service namei re-check the service, and restart the listener as you said below are the logs could you help me to solve this issue plz.
TNSNAMES.ORA
# TNSNAMES.ORA Network Configuration File: C:\oracle\ora9I\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
ORCL.TADAWI.LOC =
(DESCRIPTION =
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    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = orcl)
ODBC1 =
(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = admin-amc)(PORT = 1522))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = ODBC1)
INST1_HTTP.TADAWI.LOC =
(DESCRIPTION =
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    (CONNECT_DATA =
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      (SERVICE_NAME = MODOSE)
      (PRESENTATION = http://HRService)
EXTPROC_CONNECTION_DATA.TADAWI.LOC =
(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC2))
    (CONNECT_DATA =
      (SID = PLSExtProc)
      (PRESENTATION = RO)
)LISTENER.ORA
# LISTENER.ORA Network Configuration File: C:\oracle\ora9I\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.
LISTENER =
(DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS_LIST =
        (ADDRESS = (PROTOCOL = TCP)(HOST = admin-amc)(PORT = 1521))
      (ADDRESS_LIST =
        (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC2))
ODBC1 =
(DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS_LIST =
        (ADDRESS = (PROTOCOL = TCP)(HOST = admin-amc)(PORT = 1522))
SID_LIST_ODBC1 =
(SID_LIST =
    (SID_DESC =
      (SID_NAME = ODBC1)
      (ORACLE_HOME = C:\oracle\ora9I)
      (PROGRAM = hsodbc)
    (SID_DESC =
      (GLOBAL_DBNAME = ODBC1)
      (ORACLE_HOME = C:\oracle\ora9I)
      (SID_NAME = ODBC1)
SID_LIST_LISTENER =
(SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = C:\oracle\ora9I)
      (PROGRAM = extproc)
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      (SID_NAME = orcl)
)then i restart both listener entries (ie lsnrctl start ODBC1 and lsnrctl start ) and both are running fine without any error below are the status.
LSNRCTL for 32-bit Windows: Version 9.2.0.1.0 - Production on 05-MAR-2012 18:42:09
Copyright (c) 1991, 2002, Oracle Corporation. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=admin-amc)(PORT=1521)))
STATUS of the LISTENER
Alias                     LISTENER
Version                   TNSLSNR for 32-bit Windows: Version 9.2.0.1.0 - Production
Start Date                05-MAR-2012 18:32:15
Uptime                    0 days 0 hr. 9 min. 56 sec
Trace Level               off
Security                  OFF
SNMP                      OFF
Listener Parameter File   C:\oracle\ora9I\network\admin\listener.ora
Listener Log File         C:\oracle\ora9I\network\log\listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=admin-amc.tadawi.loc)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC2ipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=admin-amc.tadawi.loc)(PORT=8080))(Presentation=HTTP)(Session=RAW))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=admin-amc.tadawi.loc)(PORT=2100))(Presentation=FTP)(Session=RAW))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "orcl" has 2 instance(s).
Instance "orcl", status UNKNOWN, has 1 handler(s) for this service...
Instance "orcl", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
The command completed successfullyLISTENER.ORA ODBC1 status
LSNRCTL for 32-bit Windows: Version 9.2.0.1.0 - Production on 05-MAR-2012 18:41:52
Copyright (c) 1991, 2002, Oracle Corporation. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=admin-amc)(PORT=1522)))
STATUS of the LISTENER
Alias                     ODBC1
Version                   TNSLSNR for 32-bit Windows: Version 9.2.0.1.0 - Production
Start Date                05-MAR-2012 18:32:08
Uptime                    0 days 0 hr. 9 min. 46 sec
Trace Level               off
Security                  OFF
SNMP                      OFF
Listener Parameter File   C:\oracle\ora9I\network\admin\listener.ora
Listener Log File         C:\oracle\ora9I\network\log\odbc1.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=admin-amc.tadawi.loc)(PORT=1522)))
Services Summary...
Service "ODBC1" has 1 instance(s).
Instance "ODBC1", status UNKNOWN, has 2 handler(s) for this service...
The command completed successfullyWhere hope i'm near to retrive the access data.
Regards
Moazam

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import a2i.common.CatalogData;
import a2i.generated.RC;
I have put the following jar files in the java build path
MDM4J
mdm-admin
mdm-common
mdm-core
mdm-data
mdm-protocol
When I deploy my application I get the following error
java.lang.NoClassDefFoundError: a2i/common/CatalogData
It can't be determined from the exception chain, which class loader failed to load the above class. But at least the class loader of the current application does not contain a resource with name 'a2i/common/CatalogData'.
What do you guys think is the problem ?
Regards
DeepaK Singh

Hi ,
   I found a document which says that MDM4J is the legacy API and is considered deprecated .The MDM Java API is the new one .I have both of them in the java build path . I am not sure if this is that cause of the problem .
Now I had a look at the javadoc for the new API but I am not able to locate the class to obtain a connection to the MDM server from a custom application being built in Netweaver Developer Studio . Can someone help me out with the same ?What would be the code to obtain the connection to the MDM server with the new JAVA API ?
Regards
DeepaK Singh

Error while connecting to SAP Server from Windows XP Client.

Hi,
I am facing the problem while i am trying to connect my Windows XP Clients( With Service Pack 3, DI-API Installed and Microsoft SQL Server Native Client Installed) to SAP server i got follwoing Error.
Connection Failed :
SQL State : '08001'
SQL Server Error : 233
[Microsoft][SQL Native Client]Named Pipe Provider Could not open the connection SQL Server [233].
Connection Failed :
SQL State : "HYT00"
SQL Server Error : 0
[Microsoft][SQL Native Client]Login Timeout Expired
Connection Failed:
SQL State :'08001'
SQL Server Error : 233
[Microsoft][SQL Native Client]An Error has occured while establishing new connection to the server.
When connecting SQL Server 2005, this failure may caused by the fact that under the default setting SQL Server does not allow remote connection.
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Arpit Shah

Hi Arpit,
Solution of Error in starting B1 after installation should help here too.
Kind regards
Mario
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Error While connecting to SAP R3 from crystal reports

Hi Experts,
I am trying to connect to a SAP R3 from crystal reports, it gives below mentioned error.
Logon failed.
Details: CMALLC: rc= 27 > Connect from SAP gateway to RFC server failed
Connect_PM GWHOST=10.11.12.13, GWSERV=SAPGW12, SYSNR= 12
Location SAP-gateway on host xyz/sapgw12
Error timeout during allocate
TIME Wed Nov 18..
Release 700
Component SAP Gateway
Version 2
RC 242
Module gwr3cpic.c
LINE 1872
Detail no connect of TP sapdb12 from host 10.11.12.13 after 20 sec
COUNTER 6
Please help me to solve this error.
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Ganesh

Hi
please ask your network admins if there is a firewall between your CR Designer installation and your SAP R/3 system.
I assume that you have imported the necessary trsansports in your SAP R/3 system.
Which kind of driver do you use for the connection to SAP R/3?
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Stratos

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I am getting following error in communication channel monitoring
"Exception caught during JDBC adapter processing: java.lang.NullPointerException "
at the same time I can connect to oracle 10g smoothly without any error.
Please suggest what would be the reason.
regards,

Hi Check this thread
same problem disueed here & solved
Error in Sender JDBC communication channel
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