如何将新列添加到MYSQL表? [英] How to add new column to MYSQL table?

问题描述

我正在尝试使用PHP将新列添加到我的MYSQL表中.我不确定如何更改我的表，以便创建新列.在我的评估表中，我有:

I am trying to add a new column to my MYSQL table using PHP. I am unsure how to alter my table so that the new column is created. In my assessment table I have:

assessmentid | q1 | q2 | q3 | q4 | q5 

说我有一个带有文本框的页面，然后在文本框中键入q6并按一个按钮，表格将更新为:

Say I have a page with a textbox and I type q6 in to the textbox and press a button then the table is updated to:

assessmentid | q1 | q2 | q3 | q4 | q5 | q6

我的代码:

<?php 
include 'core/init.php';
include 'core/admininit.php';
include 'includes/overall/overall_header.php'; 
adminprotect_page();
include 'includes/adminmenu.php'; 
?>      
<?php

mysql_query("ALTER TABLE `assessment` ADD newq INT(1) NOT NULL AFTER `q10`");

?>
<h1>Input Career Name</h1>

    <form method="post" action="">

      Career Name
      <input type="text" name="newq" size="20">

     <input type="submit"
      name="submit" value="Submit">

</body>
</html>

推荐答案

您的表格:

q1 | q2 | q3 | q4 | q5

您也可以

ALTER TABLE yourtable ADD q6 VARCHAR( 255 ) after q5

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