Calculate a value during the SQL command

I know I could very easily do this after doing the initial database call simply by calculating the two variables, but, I was wondering if there was a way to do this during the sql statement so my results would already have my answer... Here's the setup. I have two tables. Table A has the information about a mailing. Table B has an individual record for each click generated by the e-mail. They look like this: TableA ID // unique identifier mail_date mail_qty // shows how many mails were sent TableB ID // unique identifier mail_ID // matches up with the ID in Table A mem_ID // the member's unique code Here is what I thought was going to work (but didn't): SELECT mail_date, mail_qty, count(*) as clicks, ((clicks / mail_qty)*100) as percentage FROM TableA, TableB WHERE mail_ID = TableA.ID GROUP BY mail_ID What I was hoping to get back was something like this: | mail_date | mail_qty | clicks | percentage | | 2001-02-05 | 1000 | 100 | 10 | If I need to do this the long way, it's not a huge deal, but, I thought this may be something I could do... I hope I explained that good enough. Thanks for your help! __________________________________________________ Do You Yahoo!? Send FREE Valentine eCards with Yahoo! Greetings! http://greetings.yahoo.com