MySQL在Eclipse中删除代码数据

Question

我在 MySQL 中有表，并且确实从 Eclipse 与这个数据库建立了连接。我可以将我的信息插入到我的 MySQL 数据库中的表中，但我需要可以帮助我删除一些信息的代码。

我有这个插入代码，但我需要删除代码：

try {

    DriverManager.registerDriver(new com.mysql.jdbc.Driver());
    Connection connection = (Connection) DriverManager.
            getConnection("jdbc:mysql://localhost/fish", "root", "test");

    Statement s = (Statement) connection.createStatement();
    s.executeUpdate("insert into fish.store(tr_no,tr_day,tr_month,tr_year,age_type," +
            "class,pa_no,first_name,second_name,last_name,age,birth_place," +
            " tele_no,address,gender,booking_status) values" +
            "('" + fl_no + "','" + day + "','" + month + "','" + 
            year + "','" + age_type + "','" + fcl + "','" + spa + "'," +
            "'" + sfirst + "','" + ssecond + "','" + slast + "','" + sage + 
            "','" + sP_O_B + "','" + sphone + "'," +
            "'" + saddress + "','" + sgender + "','" + status + "')");


    Ticket t = new Ticket(sfirst, slast, ssecond, ifl, fcl, day2, month2, year2);
    t.setSize(830, 380);
    t.setVisible(true);
    t.setLocationRelativeTo(null);
    t.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
    ImagePanel panel = new ImagePanel(new ImageIcon("2.jpg").getImage());
    t.getContentPane().add(panel);

} catch(SQLException ex) {
    Logger.getLogger(fish.class.getName()).log(Level.SEVERE, null, ex);
}

Answer 1

你可以这样使用：

//initialize connection...
String deleteString = "DELETE FROM fish.store WHERE first_name = ? AND last_name = ?";
PreparedStatement deleteStmt = null;
try {
    //...
    deleteStmt =  connection.prepareStatement(deleteString);
    deleteStmt.setString(1, "Clint");
    deleteStmt.setString(2, "Eastwood");
    deleteStmt.executeUpdate();
    connection.commit();
} catch...
//close connection

当然要替换语句的替换为自己的条件（deleteStmt.set...(http://docs.oracle.com/javase/7/docs/api/java/sql/PreparedStatement.html)）和SQL的WHERE子句。

看看http://dev.mysql.com/doc/refman/5.1/de/delete.html和http://docs.oracle.com/javase/tutorial/jdbc/basics/prepared.html