{"id":345,"date":"2026-06-21T19:48:26","date_gmt":"2026-06-21T17:48:26","guid":{"rendered":"https:\/\/websites.hakbregenz.at\/schuelerwebsites\/3adb\/laurin\/wordpress\/?page_id=345"},"modified":"2026-06-21T19:49:03","modified_gmt":"2026-06-21T17:49:03","slug":"relationale-datenbanksysteme-sql","status":"publish","type":"page","link":"https:\/\/websites.hakbregenz.at\/schuelerwebsites\/3adb\/laurin\/wordpress\/?page_id=345","title":{"rendered":"Relationale Datenbanksysteme &amp; SQL"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Konzeption und Abfrage komplexer Datenbanken. <strong>Ziel:<\/strong> Datenstrukturen verstehen, ER-Diagramme (ERD) zeichnen und mittels SQL-Abfragen (SELECT, JOIN, WHERE) gezielt auswerten.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Herausforderung &amp; Learning:<\/strong> Das logische Verkn\u00fcpfen mehrerer Tabellen \u00fcber Fremdschl\u00fcssel und das Verhindern von Redundanzen (Normalisierung). Hierbei habe ich gelernt, wie das informationstechnische Fundament hinter gro\u00dfen Webanwendungen aufgebaut ist.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Konzeption und Abfrage komplexer Datenbanken. Ziel: Datenstrukturen verstehen, ER-Diagramme (ERD) zeichnen und mittels SQL-Abfragen (SELECT, JOIN, WHERE) gezielt auswerten. Herausforderung &amp; Learning: Das logische Verkn\u00fcpfen mehrerer Tabellen \u00fcber Fremdschl\u00fcssel und das Verhindern von Redundanzen (Normalisierung). Hierbei habe ich gelernt, wie das informationstechnische Fundament hinter gro\u00dfen Webanwendungen aufgebaut ist.<\/p>\n","protected":false},"author":1,"featured_media":347,"parent":12,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-templates\/custom3adb.php","meta":{"saved_in_kubio":false,"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"class_list":["post-345","page","type-page","status-publish","has-post-thumbnail","hentry"],"kubio_ai_page_context":{"short_desc":"","purpose":"general"},"_links":{"self":[{"href":"https:\/\/websites.hakbregenz.at\/schuelerwebsites\/3adb\/laurin\/wordpress\/index.php?rest_route=\/wp\/v2\/pages\/345","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/websites.hakbregenz.at\/schuelerwebsites\/3adb\/laurin\/wordpress\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/websites.hakbregenz.at\/schuelerwebsites\/3adb\/laurin\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/websites.hakbregenz.at\/schuelerwebsites\/3adb\/laurin\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/websites.hakbregenz.at\/schuelerwebsites\/3adb\/laurin\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=345"}],"version-history":[{"count":1,"href":"https:\/\/websites.hakbregenz.at\/schuelerwebsites\/3adb\/laurin\/wordpress\/index.php?rest_route=\/wp\/v2\/pages\/345\/revisions"}],"predecessor-version":[{"id":348,"href":"https:\/\/websites.hakbregenz.at\/schuelerwebsites\/3adb\/laurin\/wordpress\/index.php?rest_route=\/wp\/v2\/pages\/345\/revisions\/348"}],"up":[{"embeddable":true,"href":"https:\/\/websites.hakbregenz.at\/schuelerwebsites\/3adb\/laurin\/wordpress\/index.php?rest_route=\/wp\/v2\/pages\/12"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/websites.hakbregenz.at\/schuelerwebsites\/3adb\/laurin\/wordpress\/index.php?rest_route=\/wp\/v2\/media\/347"}],"wp:attachment":[{"href":"https:\/\/websites.hakbregenz.at\/schuelerwebsites\/3adb\/laurin\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=345"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}