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  try {
    Class.forName(dbDriver).newInstance();        //¼ÓÔØÊý¾Ý¿âÇý¶¯
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    System.out.println("Êý¾Ý¿â¼ÓÔØÊ§°Ü");
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public boolean creatConnection() {
  try {
  OracleDataSource ds = new OracleDataSource();
  ds.setURL(url);
  ds.setUser(userName);
  ds.setPassword(password);
  con=ds.getConnection();
  System.out.println("Á¬½ÓÊý¾Ý¿â³É¹¦");
  }
  catch (SQLException e) {
  }
  return true;
}
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public boolean executeUpdate(String sql) {
  if (con == null) {
    creatConnection();
  }
  try {
    Statement stmt = con.createStatement();
    System.out.println(&


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