java - 从Java中的2个表中删除行

Question

有人能指出我的代码有什么问题吗？我有 2 个表，我想从 2 个表中删除一行。我能够从 1 个表中删除一行，但从 2 个表中删除一行不起作用。这是我的代码:

String id = theId.getText();
String id2 = theId2.getText();
textArea.setText("");
try (Connection connection = DriverManager.getConnection("jdbc:mysql://localhost/dealer", "root", "admin")) {
        stmt = connection.prepareStatement("DELETE FROM person, cars WHERE driverID = ?, carID = ?");
    if (stmt != null) {
        stmt.setString(1, id);
        stmt.setString(2, id2);
        stmt.executeUpdate();
    }

我得到的错误

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an
error in your SQL syntax; check the manual that corresponds to your
MySQL server version for the right syntax to use near 'WHERE driverID
= '1', carID = '1'' at line 1

非常感谢!

Answer 1

你的约束应该更像是......

WHERE driverID = '1' and  carID = '1'

我还强烈建议您使用 PreparedStatement

参见 Using PreparedStatement's了解更多详情