1.0PHP Web Applicationshttps://www.withinweb.com/inforich600338<blockquote class="wp-embedded-content" data-secret="hIBMDVjrLY"><a href="https://www.withinweb.com/info/comparing-two-columns-using-sql/">Comparing two columns using SQL</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.withinweb.com/info/comparing-two-columns-using-sql/embed/#?secret=hIBMDVjrLY" width="600" height="338" title="“Comparing two columns using SQL” — PHP Web Applications" data-secret="hIBMDVjrLY" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! 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://www.withinweb.com/info/wp-includes/js/wp-embed.min.js </script> If you have two tables which have columns with should contain the same data, and you want to check that the columns are the same, then it is possible compare the two columns using SQL. If table1 has a column…Read more ›