Re: WHERE field = a range of values (value
| From: | Paul S | Date: | Wed, 25 May 2011 12:07:58 +0000 |
| Subject: | Re: WHERE field = a range of values (value | ||
| References: | 1 2 3 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-313150@lists.php.net to get a copy of this message | ||
On Tue, 24 May 2011 23:47:47 +0700, "Paul S" <paul.s@roadrunner.com> wrote:
On Tue, 24 May 2011 21:09:34 +0700, "Richard S. Crawford" <rscrawford@mossroot.com> wrote:Except when $fields = '' (blank) >>> MySql error. Can put in if but leaves an undefined resource (warning). Any way to initialize a resourse? ($store_result = $db_connect->query)? -- Using Opera's revolutionary email client: http://www.opera.com/mail/On Tue, May 24, 2011 at 6:51 AM, Paul S <paul.s@roadrunner.com> wrote:THANKS. You saved me another day of frustration trying UNION! :-) In addition your answer also got me here: http://dev.mysql.com/doc/refman/4.1/en/comparison-operators.htmlI'd like to check a table to retrieve rows for which one field equals one of a set of values .... #get products(fields) in category list while ($row = $db_connect->fetch_array($productsincategory_list)) {Try "in": where productx in (Prod1, Prod2, Prod3)$product = $row ['selection']; $fields = "$fields" . " $product,";} $fields = substr($fields,'',-1); ###### echo "$fields<br><br>"; ###### $fields = Prod1, ProD2, Prod3 This ... $db_connect->fetch_array($sql_result); $store_result = $db_connect->query("select * from $sql_usertable WHERE (($sql_usertable.product1 = '($fields)')||( $sql_usertable.product2 = '($fields)')||($sql_usertable.product3 = '($fields)')) order by id desc limit $entry, $entries_per_page"); doesn't work. It selects nothing (obviously because no single field equals ' (Prod1, Prod2, Prod3) '). But it's the idea. Can I change the: = '($fields)' syntax I'm trying? The actual select checks more fields for this or that and gets more complicated so I'd like to keep this as simple as possible. I would like to do this without UNIONS (in one pass) if possible (my dbsql.php doesn't seem to go beyond regular query).