php - SQLSTATE[42S22] : Column not found: 1054 Unknown column

Question

我的项目有员工表，它有(姓名、地址...、NIC)这里 NIC 有模式 9 数字和 V(例如:917200424V)，我为此添加了 varchar(100) 类型，

这个 NIC 值将进入登录表，它有(passowrd，tbl_employee_NIC)员工表 NIC 值正在传递给此 tbl_employee_NIC。

以下是登录代码:

<?php

require_once '../../config/config.php';

$tbl_employee_NIC = $_POST['tbl_employee_NIC'];
$passwordI = $_POST['password'];
$passwordI = md5($passwordI);


    try {
        $sql = "SELECT e.NIC, e.status, e.employeeBranch, e.employeeRole,
                       l.status,l.tbl_employee_NIC, l.password 
                FROM tbl_employee e, tbl_login l 
                WHERE l.tbl_employee_NIC=:tbl_employee_NIC 
                  AND l.tbl_employee_NIC=e.NIC 
                  AND e.status='Active'";

        $stmt = $conn->prepare($sql);
        $stmt->execute(array(':tbl_employee_NIC' => $tbl_employee_NIC));
        $result = $stmt->fetchAll();

        if (count($result)) {
            $row = $result[0];
            $dbPassword = $row[6];

            if ($passwordI == $dbPassword) {
                $_SESSION['username'] = $row[0];
                $_SESSION['Branch'] = $row[2];
                $_SESSION['Role'] = $row[3];


                //update active in login
                $stmt = $conn->prepare("UPDATE `tbl_login` 
                                        SET `status`='Active' 
                                        WHERE tbl_employee_NIC=".$_SESSION['username']);
                 $stmt->execute();
                // ./update active in login

               $_SESSION['SUCCESS'][] = "Welcome! ".$_SESSION['username'];
                header("Location: " . '../login/home.php');

               } else {
                header("Location: " . $_SERVER['HTTP_REFERER']);
                $_SESSION['ERROR'][] = "User Name or Password is wrong..!";
            }
        } else {

            header("Location: " . $_SERVER['HTTP_REFERER']);

            $_SESSION['ERROR'][] = "You have trun over the company .. SORRY!";
        }
    } catch (Exception $ex) {

        header("Location: " . $_SERVER['HTTP_REFERER']);

        $_SESSION['ERROR'][] = $ex->getMessage();
    }
    ?>

但是当我要输入时出现错误，这是:

SQLSTATE[42S22]:未找到列:1054“where 子句”中存在未知列“917200500V”

首先，我认为错误来自代码，然后我只更新员工表的 NIC 和登录表的 tbl_employee_NIC 中没有“V”的一行。但是已经成功登录了。所以有人能给出解决方案吗？

Answer 1

我认为你的问题可能出在这个声明中。

由于 tbl_employee_NIC 是字符串列，因此数据必须用引号引起来。所以像这样修改查询

//update active in login
$stmt = $conn->prepare("UPDATE `tbl_login` 
                        SET `status`='Active' 
                        WHERE tbl_employee_NIC='{$_SESSION['username']}'");

或者如果你愿意

//update active in login
$stmt = $conn->prepare("UPDATE `tbl_login` 
                        SET `status`='Active' 
                        WHERE tbl_employee_NIC='".$_SESSION['username']."'");