{"version":"1.0","provider_name":"Access [basics]","provider_url":"https:\/\/access-basics.de","author_name":"Andr\u00e9 Minhorst","author_url":"https:\/\/access-basics.de\/index.php\/author\/andreminhorst-com","title":"Indizierung in der Praxis - Access [basics]","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"4pWjey4Cil\"><a href=\"https:\/\/access-basics.de\/index.php\/Indizierung_in_der_Praxis.html\">Indizierung in der Praxis<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/access-basics.de\/index.php\/Indizierung_in_der_Praxis.html\/embed#?secret=4pWjey4Cil\" width=\"600\" height=\"338\" title=\"&#8222;Indizierung in der Praxis&#8220; &#8211; Access [basics]\" data-secret=\"4pWjey4Cil\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/access-basics.de\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","description":"In jedem Lehrbuch zur Datenbankentwicklung erfahren Sie, wie wichtig die Indizierung von Tabellenfeldern ist. Das betrifft jene, die in Vergleichs- und Filterabfragen eingeschlossen werden sollen und au\u00dferdem die Felder, welche mehrere Tabellen \u00fcber Indexfelder \u00fcber Schl\u00fcssel miteinander verkn\u00fcpfen. Ziel sind m\u00f6glichst performante Abfragen der Datenbank. Wir untersuchen hier, wie gro\u00df der Performancezuwachs in der Praxis tats\u00e4chlich ist.","thumbnail_url":"..\/tl_files\/images\/Relayout.png"}