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Marcel Vonk - Van getal naar heelal

Categorie: Exacte wetenschap
Boekstatus: Licht beschadigd
Prijs: €23,99 €15,50

Het fascinerende verhaal over hoe de wiskunde de natuurkunde vooruithelpt, en omgekeerd

  • Hoeveel dimensies bestaan er?
  • Is het heelal recht of krom?
  • Hoe symmetrisch zijn de allerkleinste deeltjes?

De diepste vragen uit de natuurkunde hebben vaak een wiskundig antwoord: een getal, een vorm of een structuur. Wiskunde is dan ook de taal van de natuur. Een taal waarvoor wij soms een beetje bang zijn – maar die angst is onterecht. Wiskunde toont juist de schoonheid van de natuur, soms zelfs beter dan woorden alléén dat kunnen.

De rol van de wiskunde in de natuurkunde begint al bij eenvoudig tellen. Natuurkundigen worden echter op nog veel meer manieren door de wiskunde vooruitgeholpen. We hebben meetkunde nodig om zwarte gaten te begrijpen, en in de quantummechanica worden moderne structuren als ‘groepen’ en ‘vectorruimtes’ gebruikt – abstracte concepten die een concrete natuurkundige betekenis blijken te hebben, en die ons helpen de natuur beter te begrijpen. Uiteindelijk blijkt de invloed zelfs omgekeerd te werken: dankzij onverwachte hulp uit natuurkundige hoek weten wiskundigen allerlei voorheen onbewezen vermoedens te bewijzen.

In Van getal naar heelal laat theoretisch natuurkundige Marcel Vonk zien hoe wiskundige begrippen op verrassende wijze in de natuurkunde opduiken – en hoe die concepten ons verder hebben geholpen bij het begrijpen van de natuur.

Marcel Vonk is onderzoeker in de mathematische fysica aan de Universiteit van Amsterdam. Hij schrijft populairwetenschappelijke artikelen, geeft lezingen, en schreef eerder Snaartheorie, Zwarte gaten en De race tegen de schildpad. Ook is hij fervent toernooipokeraar en won als derde Nederlander een bracelet tijdens de World Series of Poker.

De pers over De race tegen de schildpad:
"De complexe natuurkunde achter de gedachte-experimenten en hun uitwerkingen legt Vonk helder en uitgebreid uit." ●●●● NRC

"Met zijn overzicht van natuurkundige gedachte-experimenten De race tegen de schildpad schaart natuurkundige Marcel Vonk zich bij de beste populairwetenschappelijke schrijvers van dit moment." New Scientist

Auteur Marcel Vonk
ISBN/ EAN 9789000384952
Bindwijze Paperback
Pagina's 272
Uitgever Spectrum
Verschijningsdatum 09-03-2023
Taal Nederlands
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  • SELECT * FROM z2pdg_djc2_price_rules WHERE published=1 AND (start_date IS NULL OR start_date = '0000-00-00 00:00:00' OR start_date <= '2025-07-28 22:09:37') AND (expire_date IS NULL OR expire_date = '0000-00-00 00:00:00' OR expire_date >= '2025-07-28 22:09:37') ORDER BY ordering306μs27.75KB/components/com_djcatalog2/helpers/price.php:703Copy
  • SELECT * FROM z2pdg_djc2_items_price_tiers WHERE item_id=2005 ORDER BY quantity ASC200μs16.08KB/components/com_djcatalog2/models/item.php:1291Copy
  • SELECT sections FROM `z2pdg_djc2_categories` WHERE `id` = 46265μs16.04KB/components/com_djcatalog2/models/item.php:309Copy
  • SELECT sections FROM `z2pdg_djc2_categories` WHERE `id` = 4633.14ms16.04KB/components/com_djcatalog2/models/item.php:309Copy
  • SELECT c.* FROM z2pdg_djc2_categories AS c WHERE c.published=1 AND c.access IN (1,5) ORDER BY c.parent_id ASC, c.ordering ASC1.08ms354KB/administrator/components/com_djcatalog2/lib/categories.php:355Copy
  • SELECT i.id, img.fullname as item_image, img.caption AS image_caption, img.path AS image_path, img.fullpath AS image_fullpath FROM z2pdg_djc2_categories as i INNER JOIN z2pdg_djc2_images as img on img.id=(select id from z2pdg_djc2_images where type='category' and item_id=i.id order by ordering asc limit 1)501μs16.13KB/administrator/components/com_djcatalog2/lib/categories.php:368Copy
  • select id, producer_id from z2pdg_djc2_items where published=12.39ms64.05KB/components/com_djcatalog2/helpers/route.php:73Copy
  • SELECT f.*, group_concat(fo.id separator '|') as options FROM z2pdg_djc2_items_extra_fields as f LEFT JOIN z2pdg_djc2_items_extra_fields_options as fo ON fo.field_id=f.id WHERE f.published = 1 GROUP BY f.id ORDER BY f.group_id asc, f.ordering asc791μs17.02KB/plugins/djcatalog2/customfield/customfield.php:41Copy
  • SELECT related_item FROM z2pdg_djc2_items_related WHERE item_id=2005218μs16.02KB/components/com_djcatalog2/models/item.php:334Copy
  • SELECT f.*, g.name as group_name, g.label as group_label, g.id as fgroup_id FROM z2pdg_djc2_items_extra_fields as f LEFT JOIN z2pdg_djc2_items_extra_fields_groups as g ON g.id=f.group_id WHERE (f.visibility = 1 or f.visibility = 3) and f.published = 1 AND (f.cart_variant = 0 OR f.cart_variant = 2) ORDER BY IFNULL(g.ordering,0) asc , g.ordering asc, f.ordering asc853μs16.86KB/components/com_djcatalog2/models/item.php:400Copy
  • SELECT * FROM z2pdg_djc2_items_extra_fields_options WHERE field_id in (29,30,7,3,11,10,21,32,12) ORDER BY field_id asc, ordering asc494μs20.13KB/components/com_djcatalog2/models/item.php:410Copy
  • SELECT sections FROM `z2pdg_djc2_categories` WHERE `id` = 46210μs16.04KB/components/com_djcatalog2/models/item.php:309Copy
  • SELECT sections FROM `z2pdg_djc2_categories` WHERE `id` = 46142μs16.04KB/components/com_djcatalog2/models/item.php:309Copy
  • SELECT c.*, gc.price as group_price FROM z2pdg_djc2_items_combinations AS c LEFT JOIN z2pdg_djc2_combination_prices AS gc ON gc.combination_id = c.id AND gc.group_id=0 WHERE item_id = 2005223μs16.31KB/components/com_djcatalog2/models/item.php:956Copy
  • SELECT f.*, g.name as group_name, g.label as group_label, g.id as fgroup_id FROM z2pdg_djc2_items_extra_fields as f LEFT JOIN z2pdg_djc2_items_extra_fields_groups as g ON g.id=f.group_id WHERE (f.cart_variant=1 OR f.cart_variant=2) and f.published = 1 ORDER BY IFNULL(g.ordering,0) asc , g.ordering asc, f.ordering asc501μs16.63KB/components/com_djcatalog2/models/item.php:458Copy
  • SELECT sections FROM `z2pdg_djc2_categories` WHERE `id` = 46151μs16.04KB/components/com_djcatalog2/models/item.php:309Copy
  • SELECT c.*, gc.price as group_price FROM z2pdg_djc2_items_combinations AS c LEFT JOIN z2pdg_djc2_combination_prices AS gc ON gc.combination_id = c.id AND gc.group_id=0 WHERE item_id = 2005198μs16.31KB/components/com_djcatalog2/models/item.php:956Copy
  • SELECT ic.*, c.name, c.input_params, c.type, c.tax_rule_id, c.price_modifier FROM z2pdg_djc2_items_customisations AS ic INNER JOIN z2pdg_djc2_customisations AS c ON c.id=ic.customisation_id WHERE item_id = 2005 AND c.type='i' ORDER BY c.ordering409μs16.31KB/components/com_djcatalog2/models/item.php:1124Copy
  • SELECT c.*, id as customisation_id, 0 as item_id FROM z2pdg_djc2_customisations AS c WHERE (c.type='c' OR c.type='a') ORDER BY c.ordering215μs16.38KB/components/com_djcatalog2/models/item.php:1124Copy
  • SELECT subq.position FROM (SELECT k.*, @num := @num + 1 AS position FROM (SELECT @num := 0) AS n, (SELECT DISTINCT i.id, i.name, i.alias, i.cat_id, c.alias as category_alias, CASE WHEN (i.special_price > 0.0 AND i.special_price < i.price) THEN i.special_price ELSE i.price END as final_price FROM z2pdg_djc2_items AS i LEFT JOIN z2pdg_djc2_categories as c ON c.id = i.cat_id LEFT JOIN z2pdg_djc2_producers as p ON p.id = i.producer_id WHERE i.parent_id = 0 AND i.published = 1 AND i.access IN (1,5) AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37') AND c.published = 1 AND i.cat_id=46 ORDER BY i.name asc , i.ordering, c.ordering ) as k) as subq WHERE subq.id = 2005 ORDER BY subq.position DESC LIMIT 11.12ms16.04KB/components/com_djcatalog2/models/item.php:857Copy
  • SELECT subq.* FROM (SELECT k.*, @num := @num + 1 AS position FROM (SELECT @num := 0) AS n, (SELECT DISTINCT i.id, i.name, i.alias, i.cat_id, c.alias as category_alias, CASE WHEN (i.special_price > 0.0 AND i.special_price < i.price) THEN i.special_price ELSE i.price END as final_price FROM z2pdg_djc2_items AS i LEFT JOIN z2pdg_djc2_categories as c ON c.id = i.cat_id LEFT JOIN z2pdg_djc2_producers as p ON p.id = i.producer_id WHERE i.parent_id = 0 AND i.published = 1 AND i.access IN (1,5) AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37') AND c.published = 1 AND i.cat_id=46 ORDER BY i.name asc , i.ordering, c.ordering ) as k) as subq WHERE subq.position < 11 ORDER BY subq.position DESC LIMIT 11.08ms16.2KB/components/com_djcatalog2/models/item.php:869Copy
  • SELECT subq.* FROM (SELECT k.*, @num := @num + 1 AS position FROM (SELECT @num := 0) AS n, (SELECT DISTINCT i.id, i.name, i.alias, i.cat_id, c.alias as category_alias, CASE WHEN (i.special_price > 0.0 AND i.special_price < i.price) THEN i.special_price ELSE i.price END as final_price FROM z2pdg_djc2_items AS i LEFT JOIN z2pdg_djc2_categories as c ON c.id = i.cat_id LEFT JOIN z2pdg_djc2_producers as p ON p.id = i.producer_id WHERE i.parent_id = 0 AND i.published = 1 AND i.access IN (1,5) AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37') AND c.published = 1 AND i.cat_id=46 ORDER BY i.name asc , i.ordering, c.ordering ) as k) as subq WHERE subq.position > 11 ORDER BY subq.position ASC LIMIT 1840μs16.2KB/components/com_djcatalog2/models/item.php:877Copy
  • SELECT f.*, g.name as group_name, g.label as group_label, g.id as fgroup_id FROM z2pdg_djc2_items_extra_fields as f LEFT JOIN z2pdg_djc2_items_extra_fields_groups as g ON g.id=f.group_id WHERE f.published = 1 ORDER BY IFNULL(g.ordering,0) asc, g.ordering asc, f.ordering asc523μs16.78KB/components/com_djcatalog2/models/items.php:1110Copy
  • SELECT o.id, o.field_id FROM z2pdg_djc2_items_extra_fields_options AS o ORDER BY o.field_id asc, o.ordering asc261μs20.05KB/components/com_djcatalog2/models/items.php:1120Copy
  • SELECT distinct i.*, CASE WHEN (i.special_price > 0.0 AND i.special_price < i.price) THEN i.special_price ELSE i.price END as final_price,c.id as _category_id, c.name as category, c.published as publish_category, c.alias as category_alias,p.id as _producer_id, p.name as producer, p.published as publish_producer, p.alias as producer_alias,ua.name AS author, ua.email AS author_email,gc.price as group_price, gc.available as group_available,countries.country_name, countries.id as item_country_id,COALESCE(NULLIF(ROUND(v.rating_sum / v.rating_count, 0), 0), 0) AS rating, COALESCE(NULLIF(v.rating_count, 0), 0) as rating_count,states.name as state_name,combinations.combo_count FROM z2pdg_djc2_items as i LEFT JOIN z2pdg_djc2_categories AS c ON c.id = i.cat_id LEFT JOIN z2pdg_djc2_producers AS p ON p.id = i.producer_id LEFT JOIN z2pdg_users AS ua ON ua.id = i.created_by LEFT JOIN z2pdg_djc2_prices AS gc ON gc.item_id = i.id AND gc.group_id=0 LEFT JOIN z2pdg_djc2_countries AS countries ON countries.id = i.country LEFT JOIN z2pdg_djc2_item_rating AS v ON i.id = v.item_id LEFT JOIN z2pdg_djc2_countries_states AS states ON states.id = i.state LEFT JOIN (SELECT item_id, COUNT(*) as combo_count FROM z2pdg_djc2_items_combinations GROUP BY item_id) AS combinations ON combinations.item_id = i.id WHERE c.access IN (1,5) AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37') AND i.published = 1 AND i.access IN (1,5) AND i.parent_id=2005 AND (i.language = 'nl-NL' OR i.language = '*') ORDER BY c.parent_id asc, c.ordering asc, i.ordering asc1.37ms34.5KB/components/com_djcatalog2/models/items.php:286Copy
  • SELECT * FROM z2pdg_djc2_images WHERE item_id=2005 AND type='item' AND exclude=0 ORDER BY ordering ASC, name ASC305μs16.33KB/administrator/components/com_djcatalog2/helpers/image.php:80Copy
  • UPDATE z2pdg_djc2_items SET hits = hits + 1 WHERE id = 2005702μs56BCopy
  • SELECT `m`.`id`,`m`.`title`,`m`.`module`,`m`.`position`,`m`.`content`,`m`.`showtitle`,`m`.`params`,`mm`.`menuid` FROM `z2pdg_modules` AS `m` LEFT JOIN `z2pdg_modules_menu` AS `mm` ON `mm`.`moduleid` = `m`.`id` LEFT JOIN `z2pdg_extensions` AS `e` ON `e`.`element` = `m`.`module` AND `e`.`client_id` = `m`.`client_id` WHERE ( ( (`m`.`published` = 1 AND `e`.`enabled` = 1 AND `m`.`client_id` = :clientId AND `m`.`access` IN (:preparedArray1,:preparedArray2)) AND (`m`.`publish_up` IS NULL OR `m`.`publish_up` <= :publishUp)) AND (`m`.`publish_down` IS NULL OR `m`.`publish_down` >= :publishDown)) AND (`mm`.`menuid` = :itemId OR `mm`.`menuid` <= 0) ORDER BY `m`.`position`,`m`.`ordering`879μs18.58KBParams/libraries/src/Cache/Controller/CallbackController.php:51Copy
  • SELECT * FROM z2pdg_djc2_videos WHERE item_id=2005 AND type='item' ORDER BY ordering ASC222μs16.31KB/administrator/components/com_djcatalog2/helpers/video.php:70Copy
  • SELECT DISTINCT a.id, a.title, a.name, a.checked_out, a.checked_out_time, a.note, a.state, a.access, a.created_time, a.created_user_id, a.ordering, a.language, a.fieldparams, a.params, a.type, a.default_value, a.context, a.group_id, a.label, a.description, a.required, a.only_use_in_subform,l.title AS language_title, l.image AS language_image,uc.name AS editor,ag.title AS access_level,ua.name AS author_name,g.title AS group_title, g.access as group_access, g.state AS group_state, g.note as group_note FROM z2pdg_fields AS a LEFT JOIN `z2pdg_languages` AS l ON l.lang_code = a.language LEFT JOIN z2pdg_users AS uc ON uc.id=a.checked_out LEFT JOIN z2pdg_viewlevels AS ag ON ag.id = a.access LEFT JOIN z2pdg_users AS ua ON ua.id = a.created_user_id LEFT JOIN z2pdg_fields_groups AS g ON g.id = a.group_id WHERE ( (`a`.`context` = :context AND `a`.`access` IN (:preparedArray1,:preparedArray2)) AND (`a`.`group_id` = 0 OR `g`.`access` IN (:preparedArray3,:preparedArray4)) AND `a`.`state` = :state) AND (`a`.`group_id` = 0 OR `g`.`state` = :gstate) AND `a`.`only_use_in_subform` = :only_use_in_subform ORDER BY a.ordering ASC715μs20.01KBParams/libraries/src/MVC/Model/BaseDatabaseModel.php:166Copy
  • SELECT DISTINCT a.id, a.title, a.name, a.checked_out, a.checked_out_time, a.note, a.state, a.access, a.created_time, a.created_user_id, a.ordering, a.language, a.fieldparams, a.params, a.type, a.default_value, a.context, a.group_id, a.label, a.description, a.required, a.only_use_in_subform,l.title AS language_title, l.image AS language_image,uc.name AS editor,ag.title AS access_level,ua.name AS author_name,g.title AS group_title, g.access as group_access, g.state AS group_state, g.note as group_note FROM z2pdg_fields AS a LEFT JOIN `z2pdg_languages` AS l ON l.lang_code = a.language LEFT JOIN z2pdg_users AS uc ON uc.id=a.checked_out LEFT JOIN z2pdg_viewlevels AS ag ON ag.id = a.access LEFT JOIN z2pdg_users AS ua ON ua.id = a.created_user_id LEFT JOIN z2pdg_fields_groups AS g ON g.id = a.group_id WHERE ( (`a`.`context` = :context AND `a`.`access` IN (:preparedArray1,:preparedArray2)) AND (`a`.`group_id` = 0 OR `g`.`access` IN (:preparedArray3,:preparedArray4)) AND `a`.`state` = :state) AND (`a`.`group_id` = 0 OR `g`.`state` = :gstate) AND `a`.`only_use_in_subform` = :only_use_in_subform ORDER BY a.ordering ASC584μs19.61KBParams/libraries/src/MVC/Model/BaseDatabaseModel.php:166Copy
  • SELECT DISTINCT a.id, a.title, a.name, a.checked_out, a.checked_out_time, a.note, a.state, a.access, a.created_time, a.created_user_id, a.ordering, a.language, a.fieldparams, a.params, a.type, a.default_value, a.context, a.group_id, a.label, a.description, a.required, a.only_use_in_subform,l.title AS language_title, l.image AS language_image,uc.name AS editor,ag.title AS access_level,ua.name AS author_name,g.title AS group_title, g.access as group_access, g.state AS group_state, g.note as group_note FROM z2pdg_fields AS a LEFT JOIN `z2pdg_languages` AS l ON l.lang_code = a.language LEFT JOIN z2pdg_users AS uc ON uc.id=a.checked_out LEFT JOIN z2pdg_viewlevels AS ag ON ag.id = a.access LEFT JOIN z2pdg_users AS ua ON ua.id = a.created_user_id LEFT JOIN z2pdg_fields_groups AS g ON g.id = a.group_id WHERE ( (`a`.`context` = :context AND `a`.`access` IN (:preparedArray1,:preparedArray2)) AND (`a`.`group_id` = 0 OR `g`.`access` IN (:preparedArray3,:preparedArray4)) AND `a`.`state` = :state) AND (`a`.`group_id` = 0 OR `g`.`state` = :gstate) AND `a`.`only_use_in_subform` = :only_use_in_subform ORDER BY a.ordering ASC588μs19.61KBParams/libraries/src/MVC/Model/BaseDatabaseModel.php:166Copy
  • SELECT * FROM z2pdg_djc2_files WHERE item_id=2005 AND type='item' AND access IN (1,5) ORDER BY ordering ASC, name ASC234μs24.38KB/administrator/components/com_djcatalog2/helpers/file.php:76Copy
  • SELECT * FROM `z2pdg_sppagebuilder` WHERE `extension` = 'mod_sppagebuilder' AND `extension_view` = 'module' AND `view_id` = '164'989μs168.88KB/modules/mod_sppagebuilder/helper.php:49Copy
  • SELECT e.manifest_cache,`e`.`manifest_cache` FROM `z2pdg_extensions` AS `e` WHERE `e`.`element` = 'com_sppagebuilder'1.43ms16.06KB/administrator/components/com_sppagebuilder/helpers/sppagebuilder.php:123Copy
  • SELECT `template` FROM `z2pdg_template_styles` WHERE `client_id` = 0 AND `home` = 1368μs16.04KB/components/com_sppagebuilder/builder/classes/base.php:85Copy
  • SELECT DISTINCT a.id, a.title, a.level, a.published, a.lft, a.parent_id FROM ( SELECT id,title,level,published,parent_id,lft,rgt FROM z2pdg_tags WHERE `published` = '1') AS a LEFT JOIN `z2pdg_tags` AS b ON a.lft > b.lft AND a.rgt < b.rgt WHERE `a`.`level` != '0' ORDER BY a.lft ASC732μs16.28KB/components/com_sppagebuilder/builder/classes/base.php:326Copy
  • SELECT a.enabled FROM `z2pdg_extensions` AS `a` WHERE `a`.`name` = 'com_k2'416μs16.02KB/components/com_sppagebuilder/builder/classes/base.php:872Copy
  • SELECT a.enabled FROM `z2pdg_extensions` AS `a` WHERE `a`.`name` = 'com_k2'412μs16.02KB/components/com_sppagebuilder/builder/classes/base.php:872Copy
  • SELECT a.enabled FROM `z2pdg_extensions` AS `a` WHERE `a`.`name` = 'com_k2'481μs16.02KB/components/com_sppagebuilder/builder/classes/base.php:872Copy
  • SELECT a.enabled FROM `z2pdg_extensions` AS `a` WHERE (`a`.`element` = 'com_acymailing' OR `a`.`element` = 'com_acym')560μs16.05KB/components/com_sppagebuilder/builder/classes/base.php:776Copy
  • SELECT `e`.`manifest_cache` FROM `z2pdg_extensions` AS `e` WHERE e.element = 'com_acymailing' OR e.element = 'com_acym'304μs16.05KB/components/com_sppagebuilder/builder/classes/base.php:849Copy
  • SELECT `listid`,`name` FROM `z2pdg_acymailing_list` WHERE `published` = '1' ORDER BY name DESC212μs16.09KB/components/com_sppagebuilder/builder/classes/base.php:798Copy
  • SELECT `template` FROM `z2pdg_template_styles` WHERE `client_id` = 0 AND `home` = 1533μs16.04KB/components/com_sppagebuilder/builder/classes/base.php:85Copy
  • SELECT f.*, g.name as group_name, g.label as group_label FROM z2pdg_djc2_items_extra_fields as f LEFT JOIN z2pdg_djc2_items_extra_fields_groups as g ON g.id=f.group_id WHERE f.published = 1 and f.filterable = 1 and (f.type = 'checkbox' or f.type = 'radio' or f.type = 'select' or f.type = 'text' or f.type = 'color' or f.type = 'multicolor' or f.type = 'multiselect') and (g.id in (4)) GROUP BY f.id ORDER BY IFNULL(g.ordering,0) asc, g.ordering asc, f.ordering asc1.07ms16.63KB/modules/mod_djc2filters/helper.php:165Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (36)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')564μs16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (105)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')433μs16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (12)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')1.14ms16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (107)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')6.73ms16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (20,70,69)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')1.49ms16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (8)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')912μs16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (46)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')548μs16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (83)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')385μs16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (49,91)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')841μs16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (16)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')454μs16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (21,74)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')1.31ms16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (13,67,92,11)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')4.78ms16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
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  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (84)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')687μs16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
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  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (97)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')786μs16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (2,59,104,80,60,61,62,98,103,81,63,76,64,66,109,65,77,111)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')7.36ms16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (90,93)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')1.41ms16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (48)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')566μs16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (41)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')712μs16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (19,53,51,54,50,52)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')1.34ms16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
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  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (75)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')332μs16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (87)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')348μs16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (89)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')339μs16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (68)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')346μs16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (108)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')441μs16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (82)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')361μs16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (88)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')383μs16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT COUNT(DISTINCT i.id) FROM z2pdg_djc2_items AS i INNER JOIN ( SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND ic.category_id IN (110)) AS category_filter ON i.id = category_filter.item_id WHERE i.published = 1 AND i.parent_id = 0 AND (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37')329μs16.04KB/administrator/components/com_djcatalog2/lib/categories.php:172Copy
  • SELECT p.* FROM z2pdg_djc2_producers as p WHERE (p.language = 'nl-NL' OR p.language = '*') AND p.published=1 ORDER BY p.ordering asc299μs16.53KB/modules/mod_djc2producers/helper.php:51Copy
  • SELECT i.id, img.fullname as item_image, img.caption AS image_caption, img.path AS image_path, img.fullpath AS image_fullpath FROM z2pdg_djc2_producers as i INNER JOIN z2pdg_djc2_images as img on img.id=(select id from z2pdg_djc2_images where type='producer' and item_id=i.id order by ordering asc limit 1)288μs16.13KB/modules/mod_djc2producers/helper.php:60Copy
  • SELECT f.*, g.name as group_name, g.label as group_label FROM z2pdg_djc2_items_extra_fields as f LEFT JOIN z2pdg_djc2_items_extra_fields_groups as g ON g.id=f.group_id WHERE f.published = 1 and f.filterable = 1 and (f.type = 'checkbox' or f.type = 'radio' or f.type = 'select' or f.type = 'text' or f.type = 'color' or f.type = 'multicolor' or f.type = 'multiselect') and f.id in (7,11,32) GROUP BY f.id ORDER BY IFNULL(g.ordering,0) asc, g.ordering asc, f.ordering asc747μs16.67KB/modules/mod_djc2filters/helper.php:165Copy
  • SELECT * FROM z2pdg_djc2_items_extra_fields_options WHERE field_id in (7,11,32) ORDER BY field_id asc, ordering asc512μs20.13KB/modules/mod_djc2filters/helper.php:175Copy
  • SELECT distinct * FROM z2pdg_djc2_items_extra_fields_values_text WHERE field_id in (7,11,32) ORDER BY field_id asc, value asc6.19ms16.09KB/modules/mod_djc2filters/helper.php:184Copy
  • SELECT c.* FROM z2pdg_djc2_categories AS c WHERE c.published=1 AND c.access IN (1,5) AND (c.language = 'nl-NL' OR c.language = '*') ORDER BY c.parent_id ASC, c.ordering ASC700μs354KB/administrator/components/com_djcatalog2/lib/categories.php:355Copy
  • SELECT i.id, img.fullname as item_image, img.caption AS image_caption, img.path AS image_path, img.fullpath AS image_fullpath FROM z2pdg_djc2_categories as i INNER JOIN z2pdg_djc2_images as img on img.id=(select id from z2pdg_djc2_images where type='category' and item_id=i.id order by ordering asc limit 1) WHERE (i.language = 'nl-NL' OR i.language = '*')467μs16.13KB/administrator/components/com_djcatalog2/lib/categories.php:368Copy
  • SELECT ef.id as field_id, ef.name as field_name, opt.id as option_id, opt.value as option_value, count(fv.item_id) as item_count FROM z2pdg_djc2_items_extra_fields_values_int as fv INNER JOIN z2pdg_djc2_items_extra_fields as ef on ef.id=fv.field_id INNER JOIN z2pdg_djc2_items_extra_fields_options as opt on opt.field_id=ef.id and opt.id=fv.value INNER JOIN ( SELECT distinct i.id FROM z2pdg_djc2_items as i INNER JOIN (SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND c.access IN (1,5) AND ic.category_id IN (46)) as category_filter ON i.id = category_filter.item_id LEFT JOIN z2pdg_djc2_categories AS c ON c.id = i.cat_id LEFT JOIN z2pdg_djc2_producers AS p ON p.id = i.producer_id LEFT JOIN z2pdg_users AS ua ON ua.id = i.created_by LEFT JOIN z2pdg_djc2_prices AS gc ON gc.item_id = i.id AND gc.group_id=0 LEFT JOIN z2pdg_djc2_countries AS countries ON countries.id = i.country LEFT JOIN z2pdg_djc2_item_rating AS v ON i.id = v.item_id LEFT JOIN z2pdg_djc2_countries_states AS states ON states.id = i.state WHERE (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37') AND i.published = 1 AND i.access IN (1,5) AND i.parent_id=0 AND (i.language = 'nl-NL' OR i.language = '*') ORDER BY i.id asc) as item_ids on fv.item_id = item_ids.id WHERE ef.id = 7 GROUP BY ef.id, opt.value ORDER BY ef.name asc1.1ms16.2KB/modules/mod_djc2filters/helper.php:287Copy
  • SELECT ef.id as field_id, ef.name as field_name, opt.id as option_id, opt.value as option_value, count(fv.item_id) as item_count FROM z2pdg_djc2_items_extra_fields_values_int as fv INNER JOIN z2pdg_djc2_items_extra_fields as ef on ef.id=fv.field_id INNER JOIN z2pdg_djc2_items_extra_fields_options as opt on opt.field_id=ef.id and opt.id=fv.value INNER JOIN ( SELECT distinct i.id FROM z2pdg_djc2_items as i INNER JOIN (SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND c.access IN (1,5) AND ic.category_id IN (46)) as category_filter ON i.id = category_filter.item_id LEFT JOIN z2pdg_djc2_categories AS c ON c.id = i.cat_id LEFT JOIN z2pdg_djc2_producers AS p ON p.id = i.producer_id LEFT JOIN z2pdg_users AS ua ON ua.id = i.created_by LEFT JOIN z2pdg_djc2_prices AS gc ON gc.item_id = i.id AND gc.group_id=0 LEFT JOIN z2pdg_djc2_countries AS countries ON countries.id = i.country LEFT JOIN z2pdg_djc2_item_rating AS v ON i.id = v.item_id LEFT JOIN z2pdg_djc2_countries_states AS states ON states.id = i.state WHERE (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37') AND i.published = 1 AND i.access IN (1,5) AND i.parent_id=0 AND (i.language = 'nl-NL' OR i.language = '*') ORDER BY i.id asc) as item_ids on fv.item_id = item_ids.id WHERE ef.id = 11 GROUP BY ef.id, opt.value ORDER BY ef.name asc979μs16.44KB/modules/mod_djc2filters/helper.php:287Copy
  • SELECT ef.id as field_id, ef.name as field_name, opt.id as option_id, opt.value as option_value, count(fv.item_id) as item_count FROM z2pdg_djc2_items_extra_fields_values_int as fv INNER JOIN z2pdg_djc2_items_extra_fields as ef on ef.id=fv.field_id INNER JOIN z2pdg_djc2_items_extra_fields_options as opt on opt.field_id=ef.id and opt.id=fv.value INNER JOIN ( SELECT distinct i.id FROM z2pdg_djc2_items as i INNER JOIN (SELECT ic.item_id FROM z2pdg_djc2_items_categories AS ic INNER JOIN z2pdg_djc2_categories AS c ON c.id=ic.category_id WHERE c.published = 1 AND c.access IN (1,5) AND ic.category_id IN (46)) as category_filter ON i.id = category_filter.item_id LEFT JOIN z2pdg_djc2_categories AS c ON c.id = i.cat_id LEFT JOIN z2pdg_djc2_producers AS p ON p.id = i.producer_id LEFT JOIN z2pdg_users AS ua ON ua.id = i.created_by LEFT JOIN z2pdg_djc2_prices AS gc ON gc.item_id = i.id AND gc.group_id=0 LEFT JOIN z2pdg_djc2_countries AS countries ON countries.id = i.country LEFT JOIN z2pdg_djc2_item_rating AS v ON i.id = v.item_id LEFT JOIN z2pdg_djc2_countries_states AS states ON states.id = i.state WHERE (i.publish_up IS NULL OR i.publish_up = '0000-00-00 00:00:00' OR i.publish_up <= '2025-07-28 22:09:37') AND (i.publish_down IS NULL OR i.publish_down = '0000-00-00 00:00:00' OR i.publish_down >= '2025-07-28 22:09:37') AND i.published = 1 AND i.access IN (1,5) AND i.parent_id=0 AND (i.language = 'nl-NL' OR i.language = '*') ORDER BY i.id asc) as item_ids on fv.item_id = item_ids.id WHERE ef.id = 32 GROUP BY ef.id, opt.value ORDER BY ef.name asc944μs32.14KB/modules/mod_djc2filters/helper.php:287Copy
  • SELECT * FROM z2pdg_acym_configuration404μs20.05KB/administrator/components/com_acym/Core/joomla/database.php:36Copy
  • SELECT * FROM z2pdg_acym_list WHERE type = 'standard'253μs16.55KB/administrator/components/com_acym/Core/joomla/database.php:36Copy
  • SELECT * FROM z2pdg_acym_field179μs16.42KB/administrator/components/com_acym/Core/joomla/database.php:36Copy
  • SELECT * FROM z2pdg_acym_form WHERE active = 1 AND type != 'shortcode'174μs16.19KB/administrator/components/com_acym/Core/joomla/database.php:36Copy
  • SELECT SUM(CASE WHEN `a`.`next_execution` <= :now THEN 1 ELSE 0 END) AS due_count,SUM(CASE WHEN `a`.`locked` IS NULL THEN 0 ELSE 1 END) AS locked_count FROM `z2pdg_scheduler_tasks` AS `a` WHERE `a`.`state` = 1247μs17.1KBParams/administrator/components/com_scheduler/src/Model/TasksModel.php:517Copy
  • SELECT `value` FROM z2pdg_acym_configuration WHERE `name` LIKE "%regacy" OR `name` LIKE "%\_sub"607μs16.04KB/plugins/system/acymtriggers/acymtriggers.php:436Copy
  • SHOW TABLES953μs24.07KB/libraries/vendor/joomla/database/src/Mysql/MysqlDriver.php:513Copy
  • SELECT * FROM z2pdg_acym_plugin214μs16.38KB/administrator/components/com_acym/Core/joomla/database.php:36Copy
  • SELECT * FROM z2pdg_acym_plugin150μs16.38KB/administrator/components/com_acym/Core/joomla/database.php:36Copy
  • SELECT `groups`.*, `groups`.title AS text, `groups`.id AS `value` FROM z2pdg_usergroups AS `groups`190μs16.34KB/administrator/components/com_acym/Core/joomla/database.php:36Copy
  • SELECT `session_id` FROM `z2pdg_session` WHERE `session_id` = ?455μs16.92KBParams/libraries/vendor/joomla/session/src/Handler/DatabaseHandler.php:291Copy
  • UPDATE `z2pdg_session` SET `data` = ? , `time` = ? WHERE `session_id` = ?358μs1.97KBParamsCopy