Well then there's no reason to copy the value. Just select from the BB table. Just: $l = mysql_fetch_array(mysql_query("SELECT max(post_time) as latest_post FROM nuke_phpbb_posts")); $s = mysql_fetch_array(mysql_query("SELECT max(script_run_date) as latest_script from script_data") if ($l['latest_post'] > $s['latest_script']) { echo "NEW POSTS!"; } Or something of that nature. I've done this in the past by setting a cookie on the user's system when they log in so I know the last time they logged in, and then you can count how many posts have been made since they were there last.. that works pretty good. -Micah On Tuesday 27 April 2004 05:02 pm, John.Bedard@xxxxxxx wrote: > I'm running a notification script that does an action if the date of the > last post is greater than the last time the script ran, which is the value > stored in the other table. The action is to notify the members if there has > been a new post in the past 24 hours. > > The client is trying to generate traffic - the members aren't using the > site. She figures if they are reminded when there's activity on the site > (without just forwarding all posts to the members - she doesn't want to > turn it into a mailing list per se) they'll start using it. > > The design may be flawed but I don't know any other way to do it. As long > as it serves the purpose and isn't a total abomination... :) > > Thanks, > > John > > -----Original Message----- > From: Micah Stevens [mailto:micah@xxxxxxxxxxxxxxxxxx] > Sent: Tuesday, April 27, 2004 5:30 PM > To: Bedard, John > Cc: php-db@xxxxxxxxxxxxx > Subject: Re: Request for help on (My)SQL Statement > > > Not with MySQL that I know of, some local guru might have an idea.. > > Why are you storing the data in another table? Usually duplicating data in > a database is a big signal of flawed design. If you're using it somewhere > else, just select it from the originating table each time. Unless you're > trying to do something else that I'm not taking into account. > > -Micah > > On Tuesday 27 April 2004 04:14 pm, John.Bedard@xxxxxxx wrote: > > So you're saying there's no way to do it in this version with a single > > statement? > > > > Thanks, > > > > John > > > > -----Original Message----- > > From: Micah Stevens [mailto:micah@xxxxxxxxxxxxxxxxxx] > > Sent: Tuesday, April 27, 2004 5:00 PM > > To: php-db@xxxxxxxxxxxxx > > Subject: Re: Request for help on (My)SQL Statement > > > > > > > > That would be the way to do it except that MySQL doesn't support > > sub-selects until version 4.1, which is in alpha still. > > > > -Micah > > > > On Tuesday 27 April 2004 04:05 pm, Swan, Nicole wrote: > > > Have you tried a nested query? I think your problem is that you're > > > really using information from two different tables. > > > > > > Maybe: > > > > > > UPDATE ngc_polling SET lastrundate = (SELECT max(post_time) FROM > > > nuke_phpbb_posts); > > > > > > > > > --Nicole > > > --------------------------- > > > Nicole Swan > > > Web Programming Specialist > > > Carroll College CCIT > > > Helena, Montana > > > (406)447-4310 > > > > > > > > > -----Original Message----- > > > From: John.Bedard@xxxxxxx [mailto:John.Bedard@xxxxxxx] > > > Sent: Tuesday, April 27, 2004 4:52 PM > > > To: php-db@xxxxxxxxxxxxx > > > Subject: Request for help on (My)SQL Statement > > > > > > :::Novice Alert::: > > > > > > I've done simple select and insert statements, so I suppose this is the > > > most complicated thing I've tried to do. but seems to me it should be > > > pretty easy. But I'm a designer by background, not a developer or > > > programmer. I've got everything else I'm trying to do working. > > > > > > I'm trying to take the largest value out of one table and update > > > another table. The former is a PHPBB table and the latter is a table I > > > created just to store the value of the date of the most recent post for > > > use in something else. > > > > > > UPDATE ngc_polling SET lastrundate = max(nuke_phpbb_posts.post_time) > > > > > > It returns "Invalid use of group function." > > > > > > I've been looking at the documentation on MySQL.com to no avail. I'm > > > testing my query in phpMyAdmin before I try to implement it elsewhere. > > > This is what I'm trying to do, any help besides "RTFM" (been doing > > > that) would be greatly appreciated. > > > > > > Thanks! > > > > > > John > > > > > > John Bedard | Interaction Designer (SWEIII) | Northrop Grumman Mission > > > Systems | Helena, Montana, U.S.A. | john.bedard@xxxxxxx | 406.443.8630 > > > | Fax 406.443.8601 | -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php