Oracle and Java

                                                 java oracle 2ийг хэрхэн холбох вэ?
   how to connect oracle database in java

1. Projects => Libraries => Add JAR/Folder



2. D:\Oracle\product\10.1.0\Db_1\jdbc\lib\ojdbc14.jar
гэсэн замаар ojdbc14.jar  файлийг сонгон "Open"
товчийг дарна.
3. ojdbc14.jar гэсэн файл нэмэгдсэн байгааг та харж 
    байгаа байх.

 4. Services =>Database =>New Connection...   coнго...

5.  
   а. Driver Name:  Oracle Thin (with Service Name) cонго.
   b. Host:              Localhost, IP хаяг гэх мэт...
   c. Port:               1521
   d. Service:          mydb
   e. Username:      username (хэрэглэгийн нэр)
   f.  Password:      password ( нууц үг)






6. Эндээс өгөгдлийн сангаа сонгоод "OK" товчийг дарна.
7. доор jdbc:oracle.......               гэж үүссэн байна.
8. OracleConnection.java

import java.sql.*;

public class OracleConnection
{
        public static void main(String[] args)
        {
                DB db = new DB();
                Connection conn=db.dbConnect(
                "jdbc:oracle:thin:@localhost:1521/mydb", "myuser", "password");
        }

}

class DB
{
        public DB() {}

        public Connection dbConnect(String db_connect_string,
          String db_userid, String db_password)
        {
                try
                {
                        DriverManager.registerDriver(
                          new oracle.jdbc.OracleDriver());

                        Connection conn = DriverManager.getConnection(
                          db_connect_string, db_userid, db_password);

                        System.out.println("Connected");
                        return conn;

                }
                catch (Exception e)
                {
                        e.printStackTrace();
                        return null;
                }
        }
};