How to avoid oracle.jdbc.driver.OracleConnection using
i'am new in Java but recently i've got a project on support.
Problem:
solution worked on jvm 1.4, now on 1.7.
Respectively, class oracle.jdbc.driver.OracleConnection has been used.
Now I need class oracle.jdbc.OracleConnection to use CLOB.createTemporary() but...I can't.
According to the docs, it's enough to replace in code and config files one class declaration on another. But NO. I replaced all of them in all config files and anyway, there was only oracle.jdbc.driver.OracleConnection has been created. (there is no explicit declaration of connection type in code, everything is configured in config files)
Project uses marven, mybatis-3.1.1. Database: oracle 9
Driver: ojdbc14-9.2.0.5.jar contains both classes: both oracle.jdbc.driver.OracleConnection (for backward compatibility) and oracle.jdbc.OracleConnection.
The matter is what should i do to use second one instead of first one.
May be there is some java cache? I do not know...
Anybody knows?
Now I need class oracle.jdbc.OracleConnection to use CLOB.createTemporary() but...I can't.
Why not? You have to explain, in detail, WHAT you are trying and WHY you say you "can't" do it.
According to the docs, it's enough to replace in code and config files one class declaration on another.
That is correct - this IS all that is required. Replace ALL references to 'oracle.jdbc.driver' in your code.
But NO. I replaced all of them in all config files and anyway, there was only oracle.jdbc.driver.OracleConnection has been created. (there is no explicit declaration of connection type in code, everything is configured in config files)
We can't SEE what 'config' information you say you changed. It is what is in the CODE that matters, not what is in a config file.
If the 'oracle.jdbc.driver' package is being imported by your code and a reference to 'Connection' is made Java will use it from the first package that it finds the class in.
You are using an ANCIENT jdbc jar file. That doc you linked to WARNS you that you should upgrade and that doc is over ten years old.
Remove that old jdbc jar file and use the current driver. Also remove references to the old package and replace them with references to the new package.
With code and jars that are that old you can expect to have problems trying to use additional features, especially extensions. I would be surprised if you didn't have other issues as well.
You need to perform code review to find all of the references that need to be corrected.
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Hi Experts,
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We are using NWDS for the first time. Could any one please give a clue, if we need to do the same in a different way.
Regards,
SSHi Vijay,
Thanks for the reply. But we need a stand alone program to run at the command prompt(of SAP server), and the sample code is as follows.
package abc;
import java.sql.Driver;
import java.sql.DriverManager;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
* @author SahuS
* To change the template for this generated type comment go to
* Window>Preferences>Java>Code Generation>Code and Comments
public class InsertData {
public static void main(String[] args) throws SQLException {
Statement mystat = null;
Connection conn = null;
try
// Step 1: Load the JDBC driver.
Class.forName("oracle.jdbc.driver.OracleDriver");
// Step 2: Establish the connection to the database.
conn = DriverManager.getConnection(
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"SAPSXIDB", // username
"PASSWORD" // password
mystat = conn.createStatement();
ResultSet rs = mystat.executeQuery("select * from sapsxidb.zemp_1;");
while (rs.next()) {
System.out.println(
rs.getInt(1) + // first column
"\t" + // the horizontal tab
rs.getString(2) // second column
mystat.close();
conn.close();
catch (Exception e)
System.err.println("Got an exception! ");
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finally{
As, we could not get the option to import the Oracle JDBC Driver, we are getting exception
Got an exception!
oracle.jdbc.driver.OracleDriver
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Regards,
SS -
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Im trying to run a jsp page that is dependent on an oricle database. However whenever I try to connect to the database over a thin line client I always get a java.lang.ClassNotFoundException error. I've gone over the path and classpath serveral time, and can't get it to work.
classpath =
C:\jdk1.2.2\lib\tools.jar;C:\Program Files\Tomcat4.0\common\lib\servlet.jar;C:\ORANT\jdbc\lib\classes102.zip;
C:\ORANT\jdbc\lib\classes111.zip;C:\jdk1.2.2\bin\java.exe;
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path =
C:\WINNT\system32;C:\WINNT\system32;C:\jdk1.2.2\bin\java.exe;C:\ORANT\jdbc\lib;
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at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java, Compiled Code)
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at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java, Compiled Code)
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at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java, Compiled Code)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java, Compiled Code)
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root cause
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How to update oracle jdbc driver to 11.1.0.7.0 JDBC Drivers
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I've been doing testing on a 12 CPU SunFire 6800 and am seeing the
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FOUND A JAVA LEVEL DEADLOCK:
"ExecuteThread: '180' for queue: 'default'":
waiting to lock monitor 0xcbb28 (object 0xdee1d070, a oracle.jdbc.driver.OraclePreparedStatement),
which is locked by "ExecuteThread: '73' for queue: 'default'"
"ExecuteThread: '73' for queue: 'default'":
waiting to lock monitor 0xcbc78 (object 0xdec416b8, a oracle.jdbc.driver.OracleConnection),
which is locked by "ExecuteThread: '180' for queue: 'default'"
JAVA STACK INFORMATION FOR THREADS LISTED ABOVE:
Java Stack for "ExecuteThread: '180' for queue: 'default'":
==========
at oracle.jdbc.driver.OraclePreparedStatement.sendBatch(OraclePreparedStatement.java:431)
at oracle.jdbc.driver.OracleConnection.commit(OracleConnection.java:838)
at weblogic.jdbc.jts.Connection.internalCommit(Connection.java:697)
at weblogic.jdbc.jts.Connection.commit(Connection.java:415)
at weblogic.transaction.internal.ServerResourceInfo.commit(ServerResourceInfo.java:1180)
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at weblogic.transaction.internal.ServerSCInfo.startCommit(ServerSCInfo.java:233)
at weblogic.transaction.internal.ServerTransactionImpl.localCommit(ServerTransactionImpl.java:1397)
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at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:265)
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at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2204)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
Java Stack for "ExecuteThread: '73' for queue: 'default'":
==========
at oracle.jdbc.driver.OracleConnection.getDefaultRowPrefetch(OracleConnection.java:1263)
at oracle.jdbc.driver.OracleStatement.setFetchSize(OracleStatement.java:4878)
at weblogic.jdbc.common.internal.ConnectionEnv.cleanUpStatementForReUse(ConnectionEnv.java:747)
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at com.fourthpass.wpserver.request.RequestProcessorBean_p612k3_EOImpl.processRequest(RequestProcessorBean_p612k3_EOImpl.java:37)
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at com.fourthpass.wpserver.irm.http.HttpRequestHandlerServlet.doPost(HttpRequestHandlerServlet.java:89)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:265)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2495)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2204)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
Found 1 deadlock.Chad Urso McDaniel wrote:
I've been doing testing on a 12 CPU SunFire 6800 and am seeing the
Oracle JDBC driver that ships with weblogic deadlock in Java. Has
anyone else come across this?
Also, does anyone know how to find the version of the oracle driver or simply know which version WebLogic 6.1 ships with?Oracle does have later driver versions, so do download it and make sure it's ahead of all weblogic
stuff in the server's classpath (as it is created by the start script).
Joe
>
>
thank you
FOUND A JAVA LEVEL DEADLOCK:
"ExecuteThread: '180' for queue: 'default'":
waiting to lock monitor 0xcbb28 (object 0xdee1d070, a oracle.jdbc.driver.OraclePreparedStatement),
which is locked by "ExecuteThread: '73' for queue: 'default'"
"ExecuteThread: '73' for queue: 'default'":
waiting to lock monitor 0xcbc78 (object 0xdec416b8, a oracle.jdbc.driver.OracleConnection),
which is locked by "ExecuteThread: '180' for queue: 'default'"
JAVA STACK INFORMATION FOR THREADS LISTED ABOVE:
Java Stack for "ExecuteThread: '180' for queue: 'default'":
==========
at oracle.jdbc.driver.OraclePreparedStatement.sendBatch(OraclePreparedStatement.java:431)
at oracle.jdbc.driver.OracleConnection.commit(OracleConnection.java:838)
at weblogic.jdbc.jts.Connection.internalCommit(Connection.java:697)
at weblogic.jdbc.jts.Connection.commit(Connection.java:415)
at weblogic.transaction.internal.ServerResourceInfo.commit(ServerResourceInfo.java:1180)
at weblogic.transaction.internal.ServerResourceInfo.commit(ServerResourceInfo.java:419)
at weblogic.transaction.internal.ServerSCInfo.startCommit(ServerSCInfo.java:233)
at weblogic.transaction.internal.ServerTransactionImpl.localCommit(ServerTransactionImpl.java:1397)
at weblogic.transaction.internal.ServerTransactionImpl.globalRetryCommit(ServerTransactionImpl.java:1940)
at weblogic.transaction.internal.ServerTransactionImpl.globalCommit(ServerTransactionImpl.java:1886)
at weblogic.transaction.internal.ServerTransactionImpl.internalCommit(ServerTransactionImpl.java:221)
at weblogic.transaction.internal.ServerTransactionImpl.commit(ServerTransactionImpl.java:190)
at weblogic.ejb20.internal.BaseEJBObject.postInvoke(BaseEJBObject.java:231)
at com.fourthpass.wpserver.request.RequestProcessorBean_p612k3_EOImpl.processRequest(RequestProcessorBean_p612k3_EOImpl.java:46)
at com.fourthpass.wpserver.handlers.deviceAdapter.AbstractDeviceHandler.processRequest(AbstractDeviceHandler.java:97)
at com.fourthpass.wpserver.irm.http.RequestHandler.process(RequestHandler.java:190)
at com.fourthpass.wpserver.irm.http.HttpRequestHandlerServlet.doRequest(HttpRequestHandlerServlet.java:128)
at com.fourthpass.wpserver.irm.http.HttpRequestHandlerServlet.doGet(HttpRequestHandlerServlet.java:78)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:265)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2495)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2204)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
Java Stack for "ExecuteThread: '73' for queue: 'default'":
==========
at oracle.jdbc.driver.OracleConnection.getDefaultRowPrefetch(OracleConnection.java:1263)
at oracle.jdbc.driver.OracleStatement.setFetchSize(OracleStatement.java:4878)
at weblogic.jdbc.common.internal.ConnectionEnv.cleanUpStatementForReUse(ConnectionEnv.java:747)
at weblogic.jdbc.common.internal.ConnectionEnv.dropStatement(ConnectionEnv.java:719)
at weblogic.jdbc.jts.Statement.close(Statement.java:231)
at weblogic.jdbc.rmi.internal.StatementImpl.close(StatementImpl.java:97)
at weblogic.jdbc.rmi.SerialStatement.close(SerialStatement.java:123)
at weblogic.jdbc.rmi.SerialStatement.close(SerialStatement.java:113)
at weblogic.ejb20.cmp11.rdbms.PersistenceManagerImpl.releaseStatement(PersistenceManagerImpl.java:596)
at weblogic.ejb20.cmp11.rdbms.PersistenceManagerImpl.releaseResources(PersistenceManagerImpl.java:562)
at weblogic.ejb20.cmp11.rdbms.PersistenceManagerImpl.releaseResources(PersistenceManagerImpl.java:531)
at com.fourthpass.wpserver.billingentities.PendingBillingInfo_6hg1f2__WebLogic_CMP_RDBMS.ejbRemove(PendingBillingInfo_6hg1f2__WebLogic_CMP_RDBMS.java:1135)
at weblogic.ejb20.manager.DBManager.remove(DBManager.java:627)
at weblogic.ejb20.internal.EntityEJBObject.remove(EntityEJBObject.java:117)
at com.fourthpass.wpserver.billingentities.PendingBillingInfoBeanCMP_6hg1f2_EOImpl.remove(PendingBillingInfoBeanCMP_6hg1f2_EOImpl.java:559)
at com.fourthpass.wpserver.billing.BillingBean.movePendingToActiveBilling(BillingBean.java:1442)
at com.fourthpass.wpserver.billing.BillingBean.reportSuccessfulInstallation(BillingBean.java:1349)
at com.fourthpass.wpserver.billing.BillingBean.reportApplicationInstallStatusCode(BillingBean.java:968)
at com.fourthpass.wpserver.billing.BillingBean.reportApplicationInstallStatusCode(BillingBean.java:937)
at com.fourthpass.wpserver.billing.BillingBean_t3moiz_EOImpl.reportApplicationInstallStatusCode(BillingBean_t3moiz_EOImpl.java:1265)
at com.fourthpass.wpserver.handlers.request.mascommands.InstallNotifyCommand.handleOtaEvent(InstallNotifyCommand.java:187)
at com.fourthpass.wpserver.handlers.request.mascommands.InstallNotifyCommand.process(InstallNotifyCommand.java:94)
at com.fourthpass.wpserver.request.handlers.MASRequestHandler.process(MASRequestHandler.java:90)
at com.fourthpass.wpserver.request.RequestProcessorBean.processRequest(RequestProcessorBean.java:113)
at com.fourthpass.wpserver.request.RequestProcessorBean_p612k3_EOImpl.processRequest(RequestProcessorBean_p612k3_EOImpl.java:37)
at com.fourthpass.wpserver.handlers.deviceAdapter.AbstractDeviceHandler.processRequest(AbstractDeviceHandler.java:97)
at com.fourthpass.wpserver.irm.http.RequestHandler.process(RequestHandler.java:190)
at com.fourthpass.wpserver.irm.http.HttpRequestHandlerServlet.doRequest(HttpRequestHandlerServlet.java:128)
at com.fourthpass.wpserver.irm.http.HttpRequestHandlerServlet.doPost(HttpRequestHandlerServlet.java:89)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:265)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2495)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2204)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
Found 1 deadlock. -
Is Oracle JDBC driver thread safe
Is the Oracle JDBC driver thread safe?
Seems that this is not totally true.
We have a Problem with Oracle JDBC driver 9.2.0.5.0 (thin)
Using an IBM JDK 1.4
Szenario:
Thread 1 access to a CLOB via
ResulSet.getCharacterStream(int)
Thread 2 normal access via some select and
ResulSet.getString(int)
(Both using the same connection)
The following threads appear to be in a circular deadlock.
Further information can be found by looking in the Overall Thread Analysis
section of this tool.
Multi-threaded deadlock 1:
"Servlet.Engine.Transports : 6" of (sys:0x39778800) (TID:0x104590D0)
Holding Resource: oracle.jdbc.ttc7.TTC7Protocol@1ADEB358/1ADEB360
Thread Waiting: "ProcessNotificationTask" (sys:0x3C51FC18) (TID:0x103B4C40)
"ProcessNotificationTask" of (sys:0x3C51FC18) (TID:0x103B4C40)
Holding Resource: oracle.jdbc.driver.OracleConnection@1AE45160/1AE45168
Thread Waiting: "Servlet.Engine.Transports : 6" (sys:0x39778800) (TID:0x104590D0)
4XESTACKTRACE at oracle.jdbc.driver.OracleStatement.doExecuteQuery(OracleStatement.java:2667)
4XESTACKTRACE at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:2840)
4XESTACKTRACE at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:608)
4XESTACKTRACE at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:536)
4XESTACKTRACE at com.top_logic.knowledge.service.db.DBKnowledgeBase.getObjectsByAttribute(Unknown Source)
4XESTACKTRACE at oracle.jdbc.ttc7.TTC7Protocol.getLobChunkSize(TTC7Protocol.java:3050)
4XESTACKTRACE at oracle.sql.LobDBAccessImpl.getChunkSize(LobDBAccessImpl.java:687)
4XESTACKTRACE at oracle.sql.CLOB.getChunkSize(CLOB.java:692)
4XESTACKTRACE at oracle.sql.CLOB.getBufferSize(CLOB.java:717)
4XESTACKTRACE at oracle.sql.CLOB.getCharacterStream(CLOB.java:345)
4XESTACKTRACE at oracle.sql.CLOB.characterStreamValue(CLOB.java:1377)
4XESTACKTRACE at oracle.jdbc.driver.OracleStatement.getCharacterStreamValue(OracleStatement.java:5817)
4XESTACKTRACE at oracle.jdbc.driver.OracleResultSetImpl.getCharacterStream(OracleResultSetImpl.java:1230)
It seems that the access to the CLOB needs another,
internal SELECT to the Database and this way
TTC7Protocol and OracleConnection lock out each other.
This only happens on a true multiprocessor machine.
We tried to reprodcue it on a Single Processor
and some HyperThreading Machine but had no real sucess.
Now where can I sumbit this as a Bug ? -
Problem with Oracle jdbc driver and jdk1.4
Hi
I have some java code which uses Oracle jdbc driver.
This code works with java 1.1.8, 1.2 & 1.3 but not with java 1.4 !
I have that exception :
java.sql.SQLException: The Network Adapter could not establish the connection
at oracle/jdbc/dbaccess/DBError.check_error(DBError.java)
at oracle/jdbc/driver/OracleConnection.<init>(OracleConnection.java)
at oracle/jdbc/driver/OracleDriver.getConnectionInstance(OracleDriver.java)
at oracle/jdbc/driver/OracleDriver.connect(OracleDriver.java)
at java/sql/DriverManager.getConnection(DriverManager.java:529)
at java/sql/DriverManager.getConnection(DriverManager.java:179)
at SimpleQuery.<init>(SimpleQuery.java:21)
at SimpleQuery.main(SimpleQuery.java:56)
when I try a getConnection...
I've tried all the jdbc drivers provided by Oracle, but it's still the same problem !
Any Idea ?
ThanksHave you tried the drivers shipped with Oracle9i Db R2? they should work against JDK 1.4
Kuassi
Hi
I have some java code which uses Oracle jdbc driver.
This code works with java 1.1.8, 1.2 & 1.3 but not with java 1.4 !
I have that exception :
java.sql.SQLException: The Network Adapter could not establish the connection
at oracle/jdbc/dbaccess/DBError.check_error(DBError.java)
at oracle/jdbc/driver/OracleConnection.<init>(OracleConnection.java)
at oracle/jdbc/driver/OracleDriver.getConnectionInstance(OracleDriver.java)
at oracle/jdbc/driver/OracleDriver.connect(OracleDriver.java)
at java/sql/DriverManager.getConnection(DriverManager.java:529)
at java/sql/DriverManager.getConnection(DriverManager.java:179)
at SimpleQuery.<init>(SimpleQuery.java:21)
at SimpleQuery.main(SimpleQuery.java:56)
when I try a getConnection...
I've tried all the jdbc drivers provided by Oracle, but it's still the same problem !
Any Idea ?
Thanks -
What version of Oracle JDBC driver
I need to know the version of the Oracle JDBC driver to use. I am using JDK version1.2, Oracle version8.0.5.
Subha,
You should be able to use any driver that directly supports JDBC 2.0. A Type-4 database-specific driver is not necessary.
Openlink Software provides a Type-3 JDBC 2.0 Driver Suite. Try a free non-expiring limited seat license at http://www.openlinksw.com under Software Availability and Download - Multi-Tier Download.
Regards,
Stephen Schadt
http://www.openlinksw.com -
Recommended Oracle JDBC driver
Hi
Can anyone clarify the recommended Oracle JDBC driver to use with Kodo4.1.4?
In the manual, section 4.14 (Appendix 4), it states that the officially
supported driver is Version 10.2.0.1.0. However, the download link in the
same paragraph points off to driver version 10.1.0.2.0...
Ref: http://edocs.bea.com/kodo/docs41/full/html/dbsupport_oracle.html
Which is it? Thanks.
DrewIn Oracle Database 11g Release 2 (11.2.0.2.0) JDBC Drivers, there is no classes12.jar. Is this deprecated? Which jar can be used instead of classes12.jar?For JDBC 4.0 features ojdbc6.jar with JDK 6.0.
For JDBC 3.0 support ojdbc 5.jar with JDK 5.0
http://www.oracle.com/technetwork/database/enterprise-edition/jdbc-112010-090769.html -
How to use the oracle jdbc driver
hi all,
i have use the jdbc driver for oracle before but this time i<m under a hp-ux system and it seems to be different
the dba here said the odbc driver and the jdbc driver where install but i get this error when i compile the code
Class oracle.jdbc.driver.OracleDriver not found in type declration.
if i try to use a odbc driver i can compile(since the classes are in jdk1.3) but i get this error at run time
java.sql.SQLException: No suitable driver
at java.sql.DriverManager.getConnection(Compiled Code)
at java.sql.DriverManager.getConnection(DriverManager.java:126)
at TestOracle.<init>(TestOracle.java:33)
at TestOracle.main(TestOracle.java:126)
can someone help me out to better understand what is wrong
it seems the drivers are not install but again the dba assures me they are
import java.sql.*;
import java.io.*;
public class TestOracle {
public TestOracle()
// Load the Oracle JDBC driver
// Connect to the database
// search the dossiers numbers in the right table depending on criteria
// if demands comes from extranet verify to only send back the dossier
// numbers that are linked to the customer
// Load the Oracle JDBC driver
try
//DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
//Class.forName("oracle.djbc.driver.OracleDriver");
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver").newInstance();
catch( Throwable t ){t.printStackTrace();}
//SQLException,IOException,ClassNotFoundException,
//IllegalAccessException,InstantiationException
try
// Connect to the database
// You can put a database name after the @ sign in the connection URL.
Connection conn =
//DriverManager.getConnection ("jdbc:oracle:oci8:@COLDDEV", "USER", "PPP");
DriverManager.getConnection("jdbc:odbc:COLDDEV","USER", "PPP");
Statement stmt = conn.createStatement ();
ResultSet r = stmt.executeQuery("select * from Dossier");
stmt.close();
System.out.println("trouver:" + r.getString("Dossier_Number"));
catch (SQLException e){e.printStackTrace();}
public static void main(String[] args)
TestOracle testOracle1 = new TestOracle();
here is the code iusehttp://forum.java.sun.com/thread.jsp?forum=48&thread=187964&start=0&range=15#608968
The above link is a comprehensive "How to get set up and on my way" that I made for someone else learning Oracle/jdbc. Kind of a self-help resource page. I would start from the beginning and download the newest drivers, then set up your environment,...etc.
hope this helped,
Jamie -
How to use Oracle jdbc driver fixedString property?
Oracle pads values in char columns so if I insert "a" in a CHAR(2) column then I cannot get that record by comparing that column to "a", I should get it by comparing it to "a ". Right?
To solve this problem the Oracle jdbc driver has the property fixedString but I cannot make it work. (look for fixedString here )
I'm using ojdbc14.jar driver for Oracle 10gR2 and accessing an Oracle 10gR2 database.
This is my code:
try {
Properties props = new Properties();
props.put("user", "****");
props.put("password", "****");
props.put("fixedString", true);
Class.forName("oracle.jdbc.driver.OracleDriver");
String jdbcUrl = "jdbc:oracle:thin:@<host>:<port>:<sid>";
Connection connection = DriverManager.getConnection(jdbcUrl, props);
PreparedStatement ps = connection.prepareStatement(
"SELECT * FROM MY_TABLE WHERE MY_TABLE_ID = ?");
ps.setObject(1, "abc"); // (*)
// MY_TABLE_ID is CHAR(15)
ResultSet rs = ps.executeQuery();
while (rs.next())
System.out.print("data: ");
System.out.println(rs.getString("MY_TABLE_ID"));
rs.close();
ps.close();
connection.close();
} catch (SQLException ex) {
ex.printStackTrace();
} catch (ClassNotFoundException ex) {
ex.printStackTrace();
The above code executes fine (no exceptions thrown) but the ResultSet is empty after executeQuery().
If I change the line (*) for
ps.setObject(1, "abc ");
Then I get the column I wanted. So it seems the driver is ignoring the fixedString option.
I've also tried changing the line (*) for
ps.setObject(1, "abc", java.sql.Types.CHAR);
But the ResultSet I get is empty again. What am I missing?
Thanks in advanceEs un Bug se corrige en la versión del OAS 10.1.2.3
Bug 10222534: UNABLE TO SET FIXEDSTRING PROPERTY IN DATASOURCE
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