{"version":"1.0","provider_name":"","provider_url":"https:\/\/www.w3computing.com\/sqlserver2012","author_name":"w3compadmin","author_url":"https:\/\/www.w3computing.com\/sqlserver2012\/author\/w3compadmin\/","title":"Introduction to the System Catalog - SQL Server","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"Nx573QmW3W\"><a href=\"https:\/\/www.w3computing.com\/sqlserver2012\/introduction-system-catalog\/\">Introduction to the System Catalog<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.w3computing.com\/sqlserver2012\/introduction-system-catalog\/embed\/#?secret=Nx573QmW3W\" width=\"600\" height=\"338\" title=\"&#8220;Introduction to the System Catalog&#8221; &#8212; \" data-secret=\"Nx573QmW3W\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\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:\/\/www.w3computing.com\/sqlserver2012\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"The system catalog consists of tables describing the structure of objects such as databases, base tables, views, and indices. (These tables are called system base tables.) The Database Engine frequently accesses the system catalog for information that is essential for the system to function properly","thumbnail_url":"http:\/\/www.w3computing.com\/sqlserver2012\/wp-content\/uploads\/sites\/5\/2018\/05\/9.1.different-interfaces-system-catalog-300x159.png"}