phpmysqladditionalter

How to add new column to MYSQL table?

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

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

My code:

<?php 
  mysql_query("ALTER TABLE `assessment` ADD newq INT(1) NOT NULL AFTER `q10`");
?>
  <form method="post" action="">
    <input type="text" name="newq" size="20">
    <input type="submit" name="submit" value="Submit">
Solution

  • your table:

    q1 | q2 | q3 | q4 | q5

    you can also do 

    ALTER TABLE yourtable ADD q6 VARCHAR( 255 ) after q5