Question

SQL异常列计数与第1行的值计数不匹配

在NetBeans 8.2版中，同时使用摆动apk中的表单。我收到此错误

int i=s.executeUpdate("insert into register(FULL_NAME,EMAIL,PASSWORD,CPASSWORD,MOBILE_NO,GENDER,DEPARTMENT,HOBBIES,ADDRESS) values ('"+fname1+","+email1+","+pass1+","+cpass1+","+num1+","+gender+","+dept1+","+hobby+","+address1+"')");

我希望将值发送到SQL数据库或MySql工作台

Answer 1

您的表有9列，但您只能将值插入1列。

您应该搜索使用parameterized query或使用此解决方法（''引用了参数varchar类型，而数字类型不是）

int i = s.executeUpdate(
        "INSERT INTO register(
            full_name,
            email,
            password,
            cpassword,
            mobile_no,
            gender,
            department,
            hobbies,
            address) 
        VALUES ('" 
        + fname1
        + "', '" + email1
        + "', '" + pass1
        + "', '" + cpass1
        + "'," + num1
        + ", '" + gender
        + "', '" + dept1
        + "', '" + hobby
        + "', '" + address1 
        + "')"
    );

Answer 2

您可以使用此

int i=s.executeUpdate("insert into register(FULL_NAME,EMAIL,PASSWORD,CPASSWORD,MOBILE_NO,GENDER,DEPARTMENT,HOBBIES,ADDRESS) "
                + "values ('"+fname1+"','"+email1+"','"+pass1+"','"+cpass1+"','"+num1+"','"+gender+"','"+dept1+"','"+hobby+"','"+address1+"')");

根据您当前的情况，您传递的是单一值，而不是9个到期日的'单一报价'

Answer 3

您的查询在所有字符串串联之后应如下所示： int i=s.executeUpdate("insert into register(FULL_NAME,EMAIL,PASSWORD,CPASSWORD,MOBILE_NO,GENDER,DEPARTMENT,HOBBIES,ADDRESS) values ('personName','personalEmail',..)) 在SQL中进行查询时，应将每个字符串都用单引号引起来

在您的示例中，连接后将如下所示： int i=s.executeUpdate("insert into register(FULL_NAME,EMAIL,PASSWORD,CPASSWORD,MOBILE_NO,GENDER,DEPARTMENT,HOBBIES,ADDRESS) values ('personName,personalEmail,..')) 并会像您仅为第一栏FULL_NAME赋予价值那样解释

列计数与数据输入的第1行的值计数不匹配

3 个答案: