Re: Query construction (again)

(Apologies for cross-postings here but I lost a php-db list members personal email address..) I need a query that in English would read something like: "Select all records from table: 'items' where each record is displayed for 7days after it's submission." It was suggested I may have to modify the output of now() to match my MySQL DB 'submitDate' field as in the query below: $sql = "SELECT * FROM $tabitem WHERE DATE_ADD(submitDate, INTERVAL 7 DAY) = now()"; So I tried the following: $sql = "SELECT * FROM $tabitem WHERE DATE_ADD(submitDate, INTERVAL 7 DAY) = DATE_FORMAT(NOW(),'Y-M-D')"; MySQL didn't complain but nor did it print out all postings submitted in the last seven days which is what it is suppposed to be doing! The 'submitDate' field is a MySQL DATE field and I'm using MySQL-3.22.32 if that's any use. Why is the query not doing what it's told!!? Cheers for your help thus far! Russ Depending on how the date is stored (date + time, or just date) On Wed, 22 Aug 2001 21:39:19 +0800 Gremlins Mailing List <mailing-list@gremlins.com.hk> wrote: > ----- Original Message ----- > From: Russ Michell <r.j.michell@apu.ac.uk> > To: <php-db@lists.php.net> > Sent: Wednesday, August 22, 2001 10:16 PM > Subject: [PHP-DB] Query construction (again) > > > > Hey there folks - similar problem - different project! > > > > I want to select some records for a period of 7days after their insert > [dateFrom] date. > > Last time I asked you guys for help I was helped toward the following > solution: > > > > $sql = "SELECT * FROM $Tpostings WHERE now()>=dateFrom AND now()<dateTo"; > > > > The problem in this new project is that the 'dateTo' field is not included > in the DB. It is 7-days > > after 'dateFrom'. So why does the following query not work: > > > > $sql = "SELECT * FROM $tabitem WHERE DATE_ADD(submitDate, INTERVAL 7 > DAY)"; > > No error is received though... > > There is no comparison in your WHERE clause. Try something like: > > $sql = "SELECT * FROM $tabitem WHERE DATE_ADD(submitDate, INTERVAL 7 DAY) = > now()"; > > Depending on how the date is stored (date + time, or just date) you may have > to modify the output of now() to match. > > hth > -- > Jason Wong > Gremlins Associates > www.gremlins.com.hk > > > > > -- > PHP Database Mailing List (http://www.php.net/) > To unsubscribe, e-mail: php-db-unsubscribe@lists.php.net > For additional commands, e-mail: php-db-help@lists.php.net > To contact the list administrators, e-mail: php-list-admin@lists.php.net > #-------------------------------------------------------# "Believe nothing - consider everything" Russ Michell Anglia Polytechnic University Webteam e: r.j.michell@apu.ac.uk w: www.apu.ac.uk/webteam t: +44 (0)1223 363271 x 2331 www.theruss.com #-------------------------------------------------------#