How we build Java Database Connectivity for Oracle 8i Database

Question

Can any one send me a sample code for Java Database Connectivity for Oracle 8i Database
it will be a grat help
Thanks & Regards
Rasika

Answer 1

You don't need a DSN if you use Oracle's JDBC driver.
You didn't read ANY of the previous replies. What makes you think this one willk help? Or any instruction, for that matter?
Sounds like you just want someone to give it to you. OK, I'll bite, but you have to figure out the rest:
import java.sql.*;
import java.util.*;
* Command line app that allows a user to connect with a database and
* execute any valid SQL against it
public class DataConnection
    public static final String DEFAULT_DRIVER   = "sun.jdbc.odbc.JdbcOdbcDriver";
    public static final String DEFAULT_URL      = "jdbc:odbc:DRIVER={Microsoft Access Driver (*.mdb)};DBQ=c:\\Edu\\Java\\Forum\\DataConnection.mdb";
    public static final String DEFAULT_USERNAME = "admin";
    public static final String DEFAULT_PASSWORD = "";
    public static final String DEFAULT_DRIVER   = "com.mysql.jdbc.Driver";
    public static final String DEFAULT_URL      = "jdbc:mysql://localhost:3306/hibernate";
    public static final String DEFAULT_USERNAME = "admin";
    public static final String DEFAULT_PASSWORD = "";
    /** Database connection */
    private Connection connection;
     * Driver for the DataConnection
     * @param command line arguments
     * <ol start='0'>
     * <li>SQL query string</li>
     * <li>JDBC driver class</li>
     * <li>database URL</li>
     * <li>username</li>
     * <li>password</li>
     * </ol>
    public static void main(String [] args)
        DataConnection db = null;
        try
            if (args.length > 0)
                String sql      = args[0];
                String driver   = ((args.length > 1) ? args[1] : DEFAULT_DRIVER);
                String url      = ((args.length > 2) ? args[2] : DEFAULT_URL);
                String username = ((args.length > 3) ? args[3] : DEFAULT_USERNAME);
                String password = ((args.length > 4) ? args[4] : DEFAULT_PASSWORD);
                System.out.println("sql     : " + sql);
                System.out.println("driver  : " + driver);
                System.out.println("url     : " + url);
                System.out.println("username: " + username);
                System.out.println("password: " + password);
                db = new DataConnection(driver, url, username, password);
                System.out.println("Connection established");
                Object result = db.executeSQL(sql);
                System.out.println(result);
            else
                System.out.println("Usage: db.DataConnection <sql> <driver> <url> <username> <password>");
        catch (SQLException e)
            System.err.println("SQL error: " + e.getErrorCode());
            System.err.println("SQL state: " + e.getSQLState());
            e.printStackTrace(System.err);
        catch (Exception e)
            e.printStackTrace(System.err);
        finally
            if (db != null)
                db.close();
            db = null;
     * Create a DataConnection
     * @throws SQLException if the database connection fails
     * @throws ClassNotFoundException if the driver class can't be loaded
    public DataConnection() throws SQLException,ClassNotFoundException
        this(DEFAULT_DRIVER, DEFAULT_URL, DEFAULT_USERNAME, DEFAULT_PASSWORD);
     * Create a DataConnection
     * @throws SQLException if the database connection fails
     * @throws ClassNotFoundException if the driver class can't be loaded
    public DataConnection(final String driver,
                          final String url,
                          final String username,
                          final String password)
        throws SQLException,ClassNotFoundException
        Class.forName(driver);
        this.connection = DriverManager.getConnection(url, username, password);
     * Get Driver properties
     * @param database URL
     * @return list of driver properties
     * @throws SQLException if the query fails
    public List getDriverProperties(final String url)
        throws SQLException
        List driverProperties   = new ArrayList();
        Driver driver           = DriverManager.getDriver(url);
        if (driver != null)
            DriverPropertyInfo[] info = driver.getPropertyInfo(url, null);
            if (info != null)
                driverProperties    = Arrays.asList(info);
        return driverProperties;
     * Clean up the connection
    public void close()
        close(this.connection);
     * Execute ANY SQL statement
     * @param SQL statement to execute
     * @returns list of row values if a ResultSet is returned,
     * OR an altered row count object if not
     * @throws SQLException if the query fails
    public Object executeSQL(final String sql) throws SQLException
        Object returnValue;
        Statement statement = null;
        ResultSet rs = null;
        try
            statement = this.connection.createStatement();
            boolean hasResultSet    = statement.execute(sql);
            if (hasResultSet)
                rs                      = statement.getResultSet();
                ResultSetMetaData meta  = rs.getMetaData();
                int numColumns          = meta.getColumnCount();
                List rows               = new ArrayList();
                while (rs.next())
                    Map thisRow = new LinkedHashMap();
                    for (int i = 1; i <= numColumns; ++i)
                        String columnName   = meta.getColumnName(i);
                        Object value        = rs.getObject(columnName);
                        thisRow.put(columnName, value);
                    rows.add(thisRow);
                returnValue = rows;
        else
            int updateCount = statement.getUpdateCount();
            returnValue     = new Integer(updateCount);
        finally
            close(rs);
            close(statement);
        return returnValue;
     * Close a database connection
     * @param connection to close
    public static final void close(Connection connection)
        try
            if (connection != null)
                connection.close();
                connection = null;
        catch (SQLException e)
            e.printStackTrace();
     * Close a statement
     * @param statement to close
    public static final void close(Statement statement)
        try
            if (statement != null)
                statement.close();
                statement = null;
        catch (SQLException e)
            e.printStackTrace();
     * Close a result set
     * @param rs to close
    public static final void close(ResultSet rs)
        try
            if (rs != null)
                rs.close();
                rs = null;
        catch (SQLException e)
            e.printStackTrace();
     * Close a database connection and statement
     * @param connection to close
     * @param statement to close
    public static final void close(Connection connection, Statement statement)
        close(statement);
        close(connection);
     * Close a database connection, statement, and result set
     * @param connection to close
     * @param statement to close
     * @param rs to close
    public static final void close(Connection connection,
                                   Statement statement,
                                   ResultSet rs)
        close(rs);
        close(statement);
        close(connection);
}%