How to create database connection in JDev

Dear Sir,
I am not able to create a connection to the Oracle9i database in JDeveloper.Plz guide me.
Thanx
Aradhana Jain

Please post this in the JDeveloper forums for an appropriate response: JDeveloper and ADF
OTN

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How to create database connection and how to call it using Java

Hi,
Good day! I'd like to know how I can create a db connection in JDev, then use this connection to retrieve data using a Java Class? I've seen using New Gallery > Database Connection. But I'm not sure how I can access this connection using Java and display some output from the retrieved records.
Any steps/tutorial link is appreciated.
Thanks in advance,
Rian

Hi,
If you need to access the connection in the entity object then refer http://download.oracle.com/docs/cd/E15523_01/web.1111/b31974/bcadvgen.htm#BABEIFAI i.e in MODEL.
But if you want to access connection in ViewController part of application then you need to do it manually.For this i am giving you my code for reference.------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import javax.faces.context.FacesContext;
import oracle.jdbc.pool.OracleDataSource;
public class DataHandler {
String jdbcUrl = null;
String userid = null;
String password = null;
Connection conn;
public static final String CONNECTION_STRING =
FacesContext.getCurrentInstance().getExternalContext().getInitParameter("connectionString");
public static final String USER_NAME =
FacesContext.getCurrentInstance().getExternalContext().getInitParameter("userName");
public static final String PASSWORD =
FacesContext.getCurrentInstance().getExternalContext().getInitParameter("password");
public DataHandler(String jdbcUrl, String userid, String password,
boolean shouldConnect) throws SQLException {
this.jdbcUrl = jdbcUrl;
this.userid = userid;
this.password = password;
if (shouldConnect) {
connect();
public void connect() throws SQLException {
OracleDataSource ds;
ds = new OracleDataSource();
ds.setURL(jdbcUrl);
conn = ds.getConnection(userid, password);
public Connection getConnection() {
return conn;
public ResultSet executeQuery(String sql) throws SQLException {
Statement s = conn.createStatement();
return s.executeQuery(sql);
public void closeConnection() throws SQLException {
if (!conn.isClosed()) {
conn.close();
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

How to create database connection using DB2Driver in JDeveloper 10.1.2.1.0?

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E:\DataDirect\3.4\lib\YMdb2.jar;E:\DataDirect\3.4\lib\YMbase.jar;E:\DataDirect\3.4\lib\YMutil.jar
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Hi
Since the error points to the unavailability of the driver class,can you double check your library claspath entries again.
I just tried a DB2 connection using the following properties and the connection went through fine:
Driver class name: com.oracle.ias.jdbc.db2.DB2Driver
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hi friendz,
plz help me...
I am using JDEV 11.1.2.2.0 version.
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in this case when im create database connection like this,
String username = "a";
String password = "b";
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conn.setAutoCommit(false);
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but this statement not working in java class.its working only backing bean.
import oracle.jdbc.OracleDriver;
DriverManager.registerDriver(new OracleDriver());
how can i do that??
hope your help
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With JDBC 4.0 driver the DriverManager class has added support for the Java SE Service Provider mechanism to the getConnection() and getDrivers() methods using which JDBC drivers may be loaded automatically. The following Class.forName() method is not required to be invoked.
Class.forName(“oracle.jdbc.OracleDriver”);
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any help..
the concern is...
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then I need to create datbase in that ..and store some tables in that database .
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ok.Thank you.
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now...I am trying to create database connection to the MS-ACCESS.I am
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its giving below error. I know that the classpath error.But where I need to give that classpath .I think I need to get driver software from somewhere.please any suggestions......
[4/7/06 19:32:53:699 SGT] 7f4721ba SystemErr R java.lang.ClassNotFoundException: sun.jdbc.odbc.JdbcOdbcDriver
[4/7/06 19:32:53:699 SGT] 7f4721ba SystemErr R      at com.ibm.ws.classloader.CompoundClassLoader.findClass(CompoundClassLoader.java(Compiled Code))
[4/7/06 19:32:53:699 SGT] 7f4721ba SystemErr R      at com.ibm.ws.classloader.CompoundClassLoader.loadClass(CompoundClassLoader.java(Compiled Code))
[4/7/06 19:32:53:699 SGT] 7f4721ba SystemErr R      at java.lang.ClassLoader.loadClass(ClassLoader.java(Compiled Code))
[4/7/06 19:32:53:699 SGT] 7f4721ba SystemErr R      at java.lang.Class.forName1(Native Method)
[4/7/06 19:32:53:699 SGT] 7f4721ba SystemErr R      at java.lang.Class.forName(Class.java(Compiled Code))
[4/7/06 19:32:53:699 SGT] 7f4721ba SystemErr R      at com.philips.servlets.DBGenerationServlet.dbCreate(DBGenerationServlet.java:102)
[4/7/06 19:32:53:699 SGT] 7f4721ba SystemErr R      at com.philips.servlets.DBGenerationServlet.doPost(DBGenerationServlet.java:87)
[4/7/06 19:32:53:699 SGT] 7f4721ba SystemErr R      at com.philips.servlets.DBGenerationServlet.doGet(DBGenerationServlet.java:73)
[4/7/06 19:32:53:699 SGT] 7f4721ba SystemErr R      at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
[4/7/06 19:32:53:699 SGT] 7f4721ba SystemErr R      at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
[4/7/06 19:32:53:699 SGT] 7f4721ba SystemErr R      at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java:110)
[4/7/06 19:32:53:699 SGT] 7f4721ba SystemErr R      at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java:174)
[4/7/06 19:32:53:699 SGT] 7f4721ba SystemErr R      at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycleServlet.java:313)
[4/7/06 19:32:53:699 SGT] 7f4721ba SystemErr R      at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java:116)
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<?xml version="1.0" encoding="UTF-8"?>
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classes12.jar
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Thanks in advance

Please refer
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How to create database connection in JDev

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