INSERT query onClick event

Hello developers,

What is the best approach to do a SQL query when a user click on a link and then redirect him to a page (in my module, to the add comment page) ?

I have thinking to use the page callback into the hook_menu like this:

$items['path/accept/%'] = array(
          'page callback' => 'accept_absence',
          'page arguments' => array(2), 
          'type' => MENU_CALLBACK)

and then a function accept_absence() which contain the INSERT query and the redirection.
I can do the SQL stuff, but not the redirection.

Is it a good approach ? And how to to a redirection ?

Thanks for you help.

-Damien
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