1.0s-oneill.comhttps://s-oneill.com/sov02rich600338<blockquote class="wp-embedded-content" data-secret="ovPgPZ12fK"><a href="https://s-oneill.com/sov02/sql/">SQL</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://s-oneill.com/sov02/sql/embed/#?secret=ovPgPZ12fK" width="600" height="338" title="“SQL” — s-oneill.com" data-secret="ovPgPZ12fK" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !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); //# sourceURL=https://s-oneill.com/sov02/wp-includes/js/wp-embed.min.js /* ]]> */ </script> SQL is a relational database management system (RDBMS) that organizes data into tables (columns and rows). Tables can be linked together to form relationships to manage data efficiently. Several popular versions of SQL include: Microsoft SQL Server MySQL PostgreSQL Google BigQuery SQLight This article mentions some of the minor but important differences between the different […]