Re: Subquery

hi all, i found the solution! it's so easy actually.. i think my brain is not functioning well on a Monday morning!! ;p UPDATE T020Employee, T010Company SET T020FaxNo = T010FaxNo WHERE T020CoCd = T010CoCd thanks bastien and nandar for your help! =) hwee ----- Original Message ----- From: "Bastien Koert" <bastien_k@hotmail.com> To: <hhwee@towa.com.sg>; <php-db@lists.php.net> Sent: Monday, September 19, 2005 11:30 AM Subject: RE: [PHP-DB] Subquery > only versions 4.1 and above support subqueries... > > bastien > > >From: "Ng Hwee Hwee" <hhwee@towa.com.sg> > >To: "PHP DB List" <php-db@lists.php.net> > >Subject: [PHP-DB] Subquery > >Date: Mon, 19 Sep 2005 10:14:34 +0800 > > > >hi, > > > >can some one enlighten me on what is wrong with my query? > > > >I want to set the fax number of all the employees of a particular company > >to > >the company's fax number. This is because the employees do not have > >personal > >fax machines, thus instead of just leaving T020FaxNo blank, I want to > >update > >it with the company's fax number. However, the following doesn't work?! i'm > >hoping i don't have to write a PHP while loop to do this simple task! =( > > > >UPDATE T020Employee SET T020FaxNo = ( SELECT T010FaxNo FROM T010Company > >WHERE T010CoCd = 'XXX' ) WHERE T020CoCd = 'XXX' > > > >MySQL version: 3.23.58. PHP version: 4.3.4. > >My database structure is: > >T010Company > >=========== > >T010CoCd (primary key) > >T010CoName > >T010Address > >T010TelNo > >T010FaxNo > > > >T020Employee > >=========== > >T020CoCd (primary key, linking to T010CoCd) > >T020EmpCd (primary key) > >T020JobTitle > >T020TelNo > >T020FaxNo > > > >Thanks so much! > >Hwee > > -- > PHP Database Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php >