Mysql SQL语法错误：未知列

我正在尝试运行此查询：

$result = db_query("INSERT INTO `timesheets` (clientid, candid, weekending, department, orderno, basicpay, basiccharge, otpay, otcharge, ot2pay, ot2charge, status, hue, huc) VALUES (`$client`, `$cand`, `$week_ending`, `$department`, `$order_no`, `$basic_pay`, `$basic_charge`, `$ot_pay`, `$ot_charge`, `$ot2_pay`, `$ot2_charge`, `$status`, `$hue`, `$huc`)");
    if($result){
        print 'Success! ID of last inserted record is';
    } 
    else {
        die('Error : ' . db_error());
    }

这些是表单中的值

    $client = db_quote($_POST['client']);
    $cand = db_quote($_POST['cand']);
    $order_no = db_quote($_POST['order_no']);
    $department = db_quote($_POST['department']);
    $week_ending = db_quote($_POST['week_ending']);
    $basic_pay = db_quote($_POST['basic_pay']);
    $hue = db_quote($_POST['hue']);
    $basic_charge = db_quote($_POST['basic_charge']);
    $huc = db_quote($_POST['huc']);
    $ot_pay = db_quote($_POST['ot1_pay']);
    $ot_charge = db_quote($_POST['ot1_charge']);
    $ot2_pay = db_quote($_POST['ot2_pay']);
    $ot2_charge = db_quote($_POST['ot2_charge']);   
    $status = 'cand';

在本例中，

$client

的值为“725”。我收到的错误是错误：“字段列表”中的未知列“725”

---

这是怎么回事-时间表表中的列名是

clientid

。我试图将值725放入

clientid

列。有语法错误吗？错误消息似乎没有意义？

正确的查询如下所示：

"INSERT INTO 'timesheets' (clientid, candid, weekending, department, orderno, basicpay, basiccharge, otpay, otcharge, ot2pay, ot2charge, status, hue, huc) 
VALUES ('$client', '$cand', '$week_ending', '$department', '$order_no', '$basic_pay', '$basic_charge', '$ot_pay', '$ot_charge', '$ot2_pay', '$ot2_charge', '$status', '$hue', '$huc')

---

在MySQL中设置值时，不能使用反勾号字符表示字段，需要使用

'

或

“

将变量括起来

使用反勾号是为了命名字段。这是MySQL的一个怪癖

您的查询行应为：

$result = db_query("INSERT INTO `timesheets` (clientid, candid, weekending, department, orderno, basicpay, basiccharge, otpay, otcharge, ot2pay, ot2charge, status, hue, huc) VALUES ('$client', '$cand', '$week_ending', '$department', '$order_no', '$basic_pay', '$basic_charge', '$ot_pay', '$ot_charge', '$ot2_pay', '$ot2_charge', '$status', '$hue', '$huc')");

这样试试

$result = db_query("INSERT INTO `timesheets` (clientid, candid, weekending, department, orderno, basicpay, basiccharge, otpay, otcharge, ot2pay, ot2charge, status, hue, huc) VALUES ('".$client."', '".$cand."', '".$week_ending."', '".$department."', '".$order_no."', '".$basic_pay."', '".$basic_charge."', '".$ot_pay."', '".$ot_charge."', '".$ot2_pay."', '".$ot2_charge."', '".$status."', '".$hue."', '".$huc."')");

---

在创建查询时，请注意引号

INSERT语句应该是这样的：

INSERT INTO table_name (col_name_1, col_name_2, col_name_3) VALUES('$param_1', '$param_2', '$param_3')

 $sqlQuery = "INSERT INTO timesheets (clientid, candid, weekending, department, orderno,basicpay, basiccharge, otpay, otcharge, ot2pay, ot2charge, status, hue, huc) VALUES ('$client', '$cand', '$week_ending', '$department', '$order_no', '$basic_pay', '$basic_charge', '$ot_pay', '$ot_charge', '$ot2_pay', '$ot2_charge', '$status', '$hue', '$huc')";

请注意，

表_name

不带引号，而每个值都用单引号分隔

您可以找到官方文档和完整的示例

顺便说一下，对代码的查询应该是这样的：

INSERT INTO table_name (col_name_1, col_name_2, col_name_3) VALUES('$param_1', '$param_2', '$param_3')

 $sqlQuery = "INSERT INTO timesheets (clientid, candid, weekending, department, orderno,basicpay, basiccharge, otpay, otcharge, ot2pay, ot2charge, status, hue, huc) VALUES ('$client', '$cand', '$week_ending', '$department', '$order_no', '$basic_pay', '$basic_charge', '$ot_pay', '$ot_charge', '$ot2_pay', '$ot2_charge', '$status', '$hue', '$huc')";

---

这将导致语法错误，因为变量

$status

是字符串，需要在statement@gabe3886我现在得到了那个错误！错误：“字段列表”中的未知列“cand”。使用“$status”修复了您是否声明了“cand”？是的，如果列type在表中为varchar。@IanButler该部门很可能是一个字符串，但对

db_quote

的调用可能会在使用前正确包装字符串。因为此SQL中没有引用值，所以任何字符串都会导致问题中的错误，表名部分不在引号中，它在后面的勾号中带有is comple非常有效，在某些地方，您可以在执行语句之前打印查询吗？我使用的是这个值（$client、$cand、$week\u ending、$department、$order\u no、$basic\u pay、$basic\u charge、$ot\u pay、$ot\u charge、$ot2\u charge、$status’、$huc）列类型都是不同长度的varchar。那么为什么我可以将$department保留为不带引号，但使用$status这样做会产生错误？$department不是字符串吗？