No, the classpath has to be able to point to all the classes you are compiling and/or running. So if you typed "javac LoadDriver.java" with the CLASSPATH variable you say you have, then the compiler would not be able to find your LoadDriver.java (because it isn't in that jar file). And you would get an error message saying so, not a ... |
This is crazy! I have been through all the forums and a lot of books. I use NetBeans 5.0 and I have an app accessing MySQL database through mysql-connector-java-3.1.12 and when I use it from NetBeans it works ok, but after I build it and attempt to use it than it shows a classNotFoundException and names the driver I instantiated with ... |
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Good Day! I'm trying to connect to a PervasiveSQL V 8 (9). Could anybody please tell me where I can get a driver for this , except for the pvjdbc2.jar? This can for ex. be PervasiveJDBC.jar. But i couldnt find it anywhere. Any driver other than pvjdbc2.jar would be of great help to me. Waiting for reply......... Thank you very much! ... |
Very often we used in our JDBC Projects. Class.forName(//Driver Name); But I have a little concern as we all must know that whatever classed we are using are mostly in rt.jar (in /jre/lib Package). and others are in (/jre/lib/ext) but I searched a lot about these driver classes e.g. oracle.jdbc.driver.OracleDriver. now could anyone suggest me that where are these classes situated. ... |
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Hi, can anyone explain me about these drivers and what exactly class.forname() is doing what shud we use as an argument for class.forname() and can't we write an appl to work with any database that means if one organization db1,other db2 then my appl shud run for both based on the parameters organization selects that db conn shuold perform can anyone ... |
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Hi, I have tried posting this problem in both the IDE Forum and this forum since The past one week and i haven't got any response.But i'm trying it one more time and i hope somebody helps me out. The problem is that i am using NetBeans 5.0 version and i'm trying to create a connection pool using Microsoft SQL Server ... |
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17. drivers coderanch.comHi Nelson: You should use the JDBC/ODBC bridge when multiple connections are not required. Multiple instances of your application can create and close connections using the bridge, but this is far less efficient than using a connection pool. The third party database drivers (e.g. Oracle, MySQL) adhere to the JDBC spec provided by Sun, which enables them to abide by a ... |
Hi all, I have a question about the purpose of XA Drivers. Time ago we had a bug in a transation processing application that runs on Bea Weblogic 8.1 which doesn't use XA Drivers. Because of that bug the application didn't rollback transactions in case of errors. Since the ejb that controlled the tx is Container managed tx-Required, I was told ... |
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Q1 : I am trying to create a quick demo using JSP to access database. I am using Microsoft Access. I know that I need to put the driver jar file in the WEB-INF/lib directory. Where can I get the driver jar file or the driver class file for Microsoft Access ? If I have the driver class file where should ... |
Where is the best place to put jdbc database drivers in a web application (e.g. Tomcat)? Our present server environment is a bit Balkanized--so my inclination is to but the driver jars within Tomcat. But, if so, where within Tomcat? If you think it is a bad idea to put the driver jars within Tomcat, I would like to know. And ... |
I wanted to setup a JBDCD-ODBC connection to an Access db. I searched and found out the driver I need is sun.jdbc.odbc.JdbcOdbcDriver...but I had to search a lot longer to find out which jar file this driver is located in...rt.jar...found the info buried in a forum post. Isn't there an easier way? I've run into this problem several times before, so ... |
hi, thank you very much for the reply...i am new to java and servlets...please help me....as you said ,I did ,and the following exception came: i am using apache tomcat server. java.lang.ClassNotFoundException: org.gjt.mm.mysql.Driver at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoa der.java:1340) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoa der.java:1189) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:164) at Exp.(Exp.java:27) at HelloServlet.doGet(HelloServlet.java:22) at javax.servlet.http.HttpServlet.service(HttpServlet.java:697) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:237) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:157) at ... |
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Dear sir i would like to know that Type 2 drivers require native database client libraries to be installed and configured on the client machine. Here what does mean by the native datbase client ? would you explain me that where we used typ1 typ2 type3 and type4 driver. I have to teach the student. with regard Arun kumar maalik |
Hi Saif uddin thanks for reply. Actually i have gone through the document gievn in the link, but not able to find the name of suitable name of driver. Even i have tried with the no of available drivers, i.e. COM.ibm.db2.jdbc.app.DB2Driver com.ibm.db2.jcc.DB2Driver COM.ibm.db2.jdbc.net.DB2Driver but still getting the same error. When i switched to the Data perspective and add connection with one ... |
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This is for a Cattle Drive assignment, so I can't post a lot of code. I've got a database that I want to access for purposes of displaying a list of videos in table format. (My code works, but it has issues.) Currently I put the code for loading the driver inside the block of code that handles the login. My ... |
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Guys, I have some doubts related to JDBC drivers... 1) Native-protocol pure Java driver: This kind of driver converts JDBC calls directly into the network protocol used by DBMSs...What it means by saying network protocol used by DBMS??? 2) JDBC-Net pure Java driver: This driver translates JDBC calls into a DBMS-independent net protocol, which is then translated to a DBMS protocol ... |
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You can use the db2 net client driver to access the database remotely, although I rarely see that in production. Usually, the db2 client application is installed on the remote machine. I think it used to be called db2connect, but it's been rebranded. When that's installed, you connect locally to db2connect, as though it were a local database. Then, db2connect takes ... |
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Are you saying every text label on a jsp page comes from the database? Databases aren't as readily designed for I18n as properties files because its rare user data needs to be internationalized. For example, a user's name and address don't change just because the language does. To put it another way, had you used resource bundles to begin with the ... |
although, I've a bit understanding about Application server, Database server and Web server but Nevertheless, Please explain how these are related to each other. If I've Oracle 10g installed in my machine then, is it a local copy of database server or of a database ? diffrence between database server and database? somwhere i read that Tomcat is a Web server ... |
There is no point looking for "Oracle JDBC" tutorials. Just take the tutorials you have already read and replace the line of code that loads the JDBC-ODBC driver by a very similar line of code that loads the Oracle driver. That's the only change necessary. JDBC was designed specifically so that you could plug in different database drivers without having to ... |
I am porting an intranet webapp that consists of servlets and applets. Both the servlets and applets interface with an Oracle8 rdms. Originally the servlets were compiled with Java 1.2 and the applets were compiled with Java 1.4, and the webapp was hosted on a Netscape4 server. I am now compiling both the servlets and applets using Java 1.5, and the ... |
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Hi Ranchers, While going through the Type 1 driver I got the following question. Please clarify them 1. If we are using the ODBC driver from the application why we are not allowed to call the method implementation in the driver directly with out using the DriverManager? 2. Is ODBC a C interface? Can we implement ODBC using Java language? 3. ... |
Hello Everyone, A few of the students in my lab are creating a distributed database server (user does not understand the database is distributed, he uses a jdbc driver to connect to one of the nodes and it acts as if it is a single node database). Now I am asked to develop a JDBC driver for that project. I downloaded ... |
I'm working on a Mac Pro, 2 Quad Core Processors, 10GB memory, 300GB Disk, OSX 10.5.4 When I try to get a connection to a local MySQL database in a web app, I get the error "No suitable driver." 1. I put the mysql-connector-java-5.1.6-bin.jar in my /lib/ext/ directory 2. I have configured the Java Build Path for the project and added ... |
Hello I am using the jamon jdbc proxy driver to collect information about my application. There are many connections opening and closing throughout. I have successfully inserted the proxy driver, but when I try to print out the stats about them, they are not aggregated. I only get info for one connection at a time. How can I access all the ... |
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Hi, Im doing an application on websphere 4.0 , I want to install oracle JDBC driver on my machine I have oracle 8I on the server while my machine(Client) have Oracle Ver. 7 From the documentation of oracle I cannont make out which JDBC driver I should install. Im pasting the Oracles document here. These are the driver versions in the ... |
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Different versions of Java support different versions of the JDBC API. From the API documentation: JDK 1.6 - JDBC 4.0 JDK 1.4/1.5 - JDBC 3.0 JDK 1.2/1.3 - JDBC 2.0 JDK 1.1 - JDBC 1.0 Apart from that, your JDBC driver might not support all features of a particular JDBC version. What your JDBC driver does and does not support is ... |
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Dave, I checked the SQL, it's fine. I'm on the trail. Looks like I'm not using a Type 4 JDBC driver. Instead I'm using the JDBC-ODBC bridge which I'm told is not real great. I have the Weblogic driver now butit's giving me a licensing error....working on it ...one thing after another. Thanks, Steve |
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I am using universal driver by IBM in type 4 mode. By default, java.sql.Connection creates FORWARD_ONLY type of resultset. In DB2, this resultset type is closed on reaching the last record. This is how i create the connection. con.createStatement()I get exception "result set closed" even when there are more records to be fetched. When I switch to Type 2 mode, the ... |
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In most cases a DB comes with its own driver, which is then kind of the default choice. That's certainly the case for all major DBs (SQLServer, DB2, Oracle, Informix, Sybase, PostgreSQL, MySQL). So in practice, it's not like you have a choice anyway. (The only DB I'm aware of that has multiple drivers available is SQLServer, and even there you'd ... |
It's a tough call. We can't look inside the interviewers head. That is why I reacted on the answer to the literal question "can i have my own driver to connect to my database?". Don't we, as interviewers, sometimes ask thought provoking questions - just to understand how the interviewee is thinking and making up his mind? ... and are happy ... |
Thanks for your reply! Only my web-app will be using the database. However, the web-app will be accessed simultaneously from almost all workstations present in the intranet. Maybe, in future, there is a possibility that the same web-app could also be accessed from the internet. In this scenario, what should be used - embedded/network? Thanks again. |
I need to create a site that will only have database updates around 1 or 2 times a day. My Oracle driver is loaded in the Tomcat lib folder and I have connected to it before in other projects but cant connect to it using the below attempt. For my connection I keep getting StackTrace error saying: jdbcDriver not found Servlet: ... |
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Hi, If I try to run a class file using JVM whose version is different than the JDK using what I have compiled my .java file so it does not execute. So as far as the JDBC type 4 drivers are concerned they are provided by the vendor in the form of class files and these class files are also compiled ... |
import java.sql.*; public class Demo { public static void main(String args[]) { try { Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); Connection conn = DriverManager.getConnection("jdbc:odbc:Driver = (MicroSoft) Access Driver (*.mdb);DBQ=z:/db.mdb"); Statement st = conn.createStatement(); ResultSet rs = st.executeQuery("SELECT * FROM Employee"); while(rs.next()) { System.out.println(rs.getInt(1) + " " + rs.getString(2)); } } catch (Exception e) { e.printStackTrace(); } } }; |
Hi Guys, I have a problem with a web application connecting to Oracle. The application (currently) uses code like this: Connection con=null; DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver()); con=DriverManager.getConnection( "someURL", "username", "password"); to connect. It's running on tomcat 6, java 6, connecting to Oracle 10.1.0.3. I was using the java 6 Oracle drivers (ojdbc6.jar), as I am with other web apps we have (they use ... |
The key is the connection URL passed to the DriverManager.getConnection() or getDriver() methods. Compare the URLs for several different database's JDBC drivers and you will see that even though they all start with "jdbc:", after that they are quite different, with the next word usually identifying the database type. The Driver Manager, when given the connection URL, cycles through the registered ... |
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i m beginner.... facing error like: ------------------------------------------------------------------------------------------------------------------- Stack Trace: %%%% ERROR Creating SessionFactory %%%% org.hibernate.HibernateException: JDBC Driver class not found: com.mysql.jdbc.Driver at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:66) at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:124) at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:56) at org.hibernate.cfg.SettingsFactory.createConnectionProvider(SettingsFactory.java:366) at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:60) at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:1881) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1174) at com.sits.dbconnection.HibernateSessionFactory.(HibernateSessionFactory.java:28) at com.sits.dao.BaseHibernateDAO.getSession(BaseHibernateDAO.java:11) at com.sits.dao.adduser.AddUserDAO.update(AddUserDAO.java:28) at com.sits.action.user.AddUserAction.execute(AddUserAction.java:40) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432) at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) ... |
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Hi Ranchers. I want to connect my application with oracle 10.I am exporting LD_LIBRARY_PATH in profile as follow from linux. Am i exporting correct? LD_LIBRARY_PATH=$DYLD_LIBRARY_PATH:/u01/app/oracle/product/10.2.0/db_1/lib export LD_LIBRARY_PATH PATH=$PATH::/u01/app/oracle/product/10.2.0/db_1/bin export PATH I also set the class path to the ojdbc14.jar file.But i am getting the following exception.Where I am wrong. Exception in thread "main" java.lang.UnsatisfiedLinkError: no ocijdbc10 in java.library.path at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1734) at ... |
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I want to pack my application in a .jar file. I run an application which needs sqljdbc4.jar to access a Sql 2008 Express server. Without the jar the application runs well and gets access to the database. With the jar file it doesn't. I wrap as follows: Make Manifest.txt with the following contents: Main-Class: MyMainClass (plus empty line) Make executable jar: ... |
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First of all I would like to introduce myself. My name is Marcello and I'm posting from Italy. Hello to all the attendants of this forum. I'm reverse-engineering a QuickBASIC application that uses a BTRieve DataBase to store data. The problem I'm now facing is that I have to migrate some data from these tables to a MySQL DB using Java. ... |
I am looking for a JDBC compatible database driver with the following requirements: 1. A driver for a desktop database such as Access or Paradox (or even both?) 2. The driver must run under both Windows 98 and Windows XP. 3. The Java application, the database and the driver must be able to run on a single workstation (i.e.not connecting to ... |
Hello people! After reading a lot of threads from different forums, reading all the necessary documentations, I still cannot solve my problem. I have a project where I have to, basically, transfer data from one DB (DB2) to another one (Progress) using an intermediate DB (mySql). The machine I use to developp is a Win2000 Family Server where progress 9.1C is ... |
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Hi people! This is my first time posting in a forum, so be gentle... I have a problem with an applet I'm supposed to edit, so that it searches an nuclear database.. The problem I have is, that when I try to load a drive with Class.forName("Driverblablablalba"), it doesn't work.. Now I've tested loading the driver and getting stuff from the ... |
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Hi, I've got a Filemaker Developer 6.0 and I'm trying to access through JDBC. I have a problem that I can't get "Relationship" through JDBC. I want to get value from related fileds in other fp5 files. To examin this, I've created 2 "fp5" files as follows: ------------------------------------------ File Name : "relation1.fp5" Field1(DataType:TEXT) File Name : "relation2.fp5" RelField1(DataType:TEXT) RelField2(DataType:TEXT) Defined Relation ... |
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import java.sql.*; class JdbcTest { public static void main (String args []) throws SQLException { // Load Oracle driver Statement stmt=null; Connection conn=null; ResultSet rset=null; try{ Class.forName("oracle.jdbc.driver.OracleDriver"); // Connect to the local database // conn=DriverManager.getConnection("jdbc:oracle:thin :@localhost:1521:orcl","scott", "tiger"); conn = DriverManager.getConnection("jdbc:oracle:thin:@dss w2k01:1521:orcl","scott", "tiger"); // Query the employee names stmt = conn.createStatement (); rset = stmt.executeQuery ("SELECT ename FROM emp"); } catch(Exception e){ ... |