具有多列的JDBC delete语句

Question

它说如果我将它输入到sql plus中，而只添加；我结束了该语句的错误。 它完美地工作。 我究竟做错了什么？

    Statement statement = connection.createStatement();
    statement.executeUpdate("delete from aplbuk  MODEL = '"+   textField_4.getText()  + "'AND  year = '" + textField_1.getText()  + "' AND Litres = '" + textField_2.getText() 
    + "' AND ENGINE_TYPE = '" + textField_3.getText() + "'");
    statement.close();

Answer 1

在查询中表名称aplbuk之后缺少关键字的where delete from aplbuk MODEL 。

将查询更新为：

  statement.executeUpdate("delete from aplbuk  where  MODEL = '"+   
                           textField_4.getText()  + "'AND  year = '" + 
                           textField_1.getText()  + "' AND Litres = '" + 
                           textField_2.getText() + "' AND ENGINE_TYPE = '" + 
                           textField_3.getText() + "'");

另外，如果year和Litres是数字字段，则不要将值括在单引号中。