theblt Posted August 30, 2003 Share Posted August 30, 2003 Ok, I\'m trying to display info form many tables. 9 tables to be exact. And I can\'t get it to work at all. I put it all together and run it and nothing is echoed back. It only seems to work when I\'m only using 2 tables. Otherwise if it\'s 3 or more, it doesn\'t echo anything. [php:1:f7a6cda346]<?php //Connect to Database mysql_pconnect(\"localhost\", \"user\", \"password\"); mysql_select_db(\"database\"); //Select Tables $result = mysql_query(\"SELECT `aboutus`.*, `email_support`.*, `home`.*, `im_support`.*, `newsroom`.*, `page_options`.*, `portfolio`.*, `products`.*, `services`.* FROM aboutus, email_support, home, im_support, newsroom, page_options, portfolio, products, services \"); $r=mysql_fetch_array($result); //Define Database Variables //Page Options Variables $pagetitle=$r[\"po_page_title\"]; $date_setting=$r[\"po_date_setting\"]; $siteroot=$r[\"po_site_root\"]; $footer=$r[\"po_footer\"]; //About Us Variables $aboutus_content=$r[\"aboutus_content\"]; //IM Support Variables $im_aim=$r[\"IM_aim\"]; $im_msn=$r[\"IM_msn\"]; $im_yahoo=$r[\"IM_yahoo\"]; $im_icq=$r[\"IM_icq\"]; //Email Support Variables $email_address=$r[\"email_address\"]; $email_type=$r[\"email_type\"]; //Home Page Variables $home_content=$r[\"home_content\"]; //Newsroom Variables $news_id=$r[\"news_id\"]; $news_title=$r[\"news_title\"]; $news_date=$r[\"news_date\"]; $news_content=$r[\"news_content\"]; //Portfolio Variables $prtf_id=$r[\"prtf_id\"]; $prtf_site_name=$r[\"prtf_site_name\"]; $prtf_site_address=$r[\"prtf_site_address\"]; $prtf_image_url=$r[\"prtf_image_url\"]; $prtf_site_description=$r[\"prtf_site_description\"]; //Products Variables $prod_id=$r[\"prod_id\"]; $prod_name=$r[\"prod_name\"]; $prod_price=$r[\"prod_price\"]; $prod_description=$r[\"prod_description\"]; $prod_image_url=$r[\"prod_image_url\"]; //Services Variables $serv_id=$r[\"serv_id\"]; $serv_name=$r[\"serv_name\"]; $serv_description=$r[\"serv_description\"]; $serv_image_url=$r[\"serv_image_url\"]; ?> <?php echo $pagetitle.\"<br>\"; echo date(\"$date_setting\").\"<br>\"; echo $siteroot.\"<br>\"; echo $footer.\"<br>\"; echo $aboutus_content.\"<br>\"; echo $im_aim.\"<br>\"; echo $im_msn.\"<br>\"; echo $im_yahoo.\"<br>\"; echo $im_icq.\"<br>\"; echo $email_address.\"<br>\"; echo $email_type.\"<br>\"; echo $home_content.\"<br>\"; echo $news_id.\"<br>\"; echo $news_title.\"<br>\"; echo $news_date.\"<br>\"; echo $news_content.\"<br>\"; echo $prtf_id.\"<br>\"; echo $prtf_site_name.\"<br>\"; echo $prtf_site_address.\"<br>\"; echo $prtf_image_url.\"<br>\"; echo $prtf_site_description.\"<br>\"; echo $prod_id.\"<br>\"; echo $prod_name.\"<br>\"; echo $prod_price.\"<br>\"; echo $prod_description.\"<br>\"; echo $prod_image_url.\"<br>\"; echo $serv_id.\"<br>\"; echo $serv_name.\"<br>\"; echo $serv_description.\"<br>\"; echo $serv_image_url.\"<br>\"; ?>[/php:1:f7a6cda346] Quote Link to comment https://forums.phpfreaks.com/topic/959-selecting-and-displaying-multiple-tables/ Share on other sites More sharing options...
Barand Posted August 31, 2003 Share Posted August 31, 2003 $result = mysql_query(\"SELECT `aboutus`.*, `email_support`.*, `home`.*, `im_support`.*, `newsroom`.*, `page_options`.*, `portfolio`.*, `products`.*, `services`.* FROM aboutus, email_support, home, im_support, newsroom, page_options, portfolio, products, services \"); I suspect the query is timing out. When you select from several table without any JOIN conditions, you get a \'cartesian\' join which combines every record with every other record in every table. So if you have only 10 records in each of your 9 tables you get 10^9 rows returned - 1,000,000,000. Quote Link to comment https://forums.phpfreaks.com/topic/959-selecting-and-displaying-multiple-tables/#findComment-3262 Share on other sites More sharing options...
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