Class.forname Oracle Drivers For Mac

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What will the command

exactly do while connecting to a Oracle database? Is there an alternate way of doing the same thing?

Mark Rotteveel
  • Go to Start-Control panelAdministrative Tools- Data Sources (ODBC)-go to system dsn tab-click add button-select a driver for which you want to set up a data source (for Oracle- Oracle in XE)-select it and click finish-give any name in the data source name textbox-then click ok button.
  • 'OCI' (type 2 drivers) needs a native code of oracle installed into DB client (Note that DBclient is your server, not user browser). 'Thin' (type 4 drivers) is 100% pure Java. This is an example of a.
  • May 02, 2011  the parameter inside the Class.forname is the type of driver you want to use for the connection between java and your database All times are GMT +2. The time now is 02:21 PM.
  • However i understand this is not the correct method and would really like to get the classpath method working in both xcode and javac terminal comping on mac os 10.4 thanks Like Show 0 Likes (0) Actions.
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Can I use Oracle JDBC 12.1.0.1 (for 12c database) on a Oracle 10g database? Hot Network Questions Presentation that shows how to use lualatex to make a presentation. 9i with jdbc and driver thin under MacOS X 372129 Dec 11, 2002 1:05 AM Hi, I am experiencing troubleshooting with using JDBC on the mac.

AravindAravind
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7 Answers

It obtains a reference to the class object with the FQCN (fully qualified class name) oracle.jdbc.driver.OracleDriver.

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It doesn't 'do' anything in terms of connecting to a database, aside from ensure that the specified class is loaded by the current classloader. There is no fundamental difference between writing

Class.forName('com.example.some.jdbc.driver') calls show up in legacy code that uses JDBC because that is the legacy way of loading a JDBC driver.

From The Java Tutorial:

Oracle

In previous versions of JDBC, to obtain a connection, you first had to initialize your JDBC driver by calling the method Class.forName. This methods required an object of type java.sql.Driver. Each JDBC driver contains one or more classes that implements the interface java.sql.Driver.
..
Any JDBC 4.0 drivers that are found in your class path are automatically loaded. (However, you must manually load any drivers prior to JDBC 4.0 with the method Class.forName.)

Further reading (read: questions this is a dup of)

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Matt BallMatt Ball
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McDowellMcDowell
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From the Java JDBC tutorial:

In previous versions of JDBC, to obtain a connection, you first had to initialize your JDBC driver by calling the method Class.forName. Any JDBC 4.0 drivers that are found in your class path are automatically loaded. (However, you must manually load any drivers prior to JDBC 4.0 with the method Class.forName.)

So, if you're using the Oracle 11g (11.1) driver with Java 1.6, you don't need to call Class.forName. Otherwise, you need to call it to initialise the driver.

JonathanJonathan
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This command loads class of Oracle jdbc driver to be available for DriverManager instance. After the class is loaded system can connect to Oracle using it. As an alternative you can use registerDriver method of DriverManager and pass it with instance of JDBC driver you need.

anatolichanatolich

Pre Java 6 the DriverManager class wouldn't have known which JDBC driver you wanted to use. Class.forName('..') was a way on pre-loading the driver classes.

If you are using Java 6 you no longer need to do this.

QwerkyQwerky
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An alternative would to use the jdbc.drivers System property to specify your required drivers(s) on the command line when you start the JVM.

sudocodesudocode

Use oracle.jdbc.OracleDriver, not oracle.jdbc.driver.OracleDriver. You do not need to register it if the driver jar file is in the 'WEB-INFlib' directory, if you are using Tomcat. Save this as test.jsp and put it in your web directory, and redeploy your web app folder in Tomcat manager:

TomTom

Not the answer you're looking for? Browse other questions tagged javajdbc or ask your own question.

I currently doing a simple Java applet that allow users to enter the data. The applet will using Microsoft SQL Server 7.0 as database. I facing the error message 'not suitable driver' when execute the program. Can anyone tell what driver I need to use and where I can download it. Below is the source code. Hope that somebody will help me solve the problem adn reply me thru huangaun@yahoo.com.
import java.awt.*;
import sun.applet.AppletSecurity.*;
import sun.applet.*;
import java.applet.Applet.*;
import java.awt.event.*;
import java.applet.*;
import java.sql.*;
import java.io.*;
import sun.jdbc.odbc.*;
import java.net.URL;
import java.util.*;
class Person{
String FName, LName, EMail;
long id;
public void Print(){
System.out.println(FName + 't' + LName + 't' + EMail);
}
Person(long l, String fn, String ln, String em){

Java Class Forname


FName = fn;
Jdbc driver class LName = ln;
EMail = em;
id = l;
}
}
public class PeopleMaker extends Applet implements ActionListener{
Button btnAdd;
TextField txtFName,txtLName,
txtEMail;
Label lblFName, lblLName,
lblEMail;
public void init(){
setLayout(new GridLayout
(4,2,5,5));
lblFName = new Label('First

Class Forname Mysql Jdbc Driver


Name:');
add(lblFName);
txtFName = new TextField(30);
add(txtFName);
lblLName = new Label
('Last Name:');
add(lblLName);

Java Class Forname Inner Class


txtLName = new TextField(30);
add(txtLName);
lblEMail = new Label('EMail
Address:');
add(lblEMail);
txtEMail = new TextField(30);
add(txtEMail);
btnAdd = new Button('Add
Person');
btnAdd.addActionListener(this);
add(btnAdd);

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}

Jdbc Driver Class

public void actionPerformed
(ActionEvent e){
if (e.getSource() btnAdd){
String SQLQuery;
SQLQuery
= 'INSERT INTO SPR (FName,
LName, EMail) VALUES (' +
txtFName.getText() + ', ' +

Class.forname Oracle Drivers For Mac


txtLName.getText() + ', ' +
txtEMail.getText() + ');';
try{
Class.forName
('sun.jdbc.odbc.JdbcOdbcDriver');
Connection con =
DriverManager.getConnection
('jdbc:odbc:SRP',',');
Statement stmt =
con.createStatement();
int recordcount =
stmt.executeUpdate(SQLQuery);
stmt.close();
con.close();
}
catch (Exception x) {
System.out.println(x.getMessage
());
x.printStackTrace();
}
txtFName.setText
(');
txtLName.setText(');
txtEMail.setText(');
}
}
}

Oracle Drivers For Java