{"version":"1.0","provider_name":"Viz Note Vietnamese - AI Insights &amp; Software Industry Updates","provider_url":"https:\/\/www.viz-note.com\/vi","author_name":"vpadmin","author_url":"https:\/\/www.viz-note.com\/vi\/author\/vpadmin\/","title":"Chi\u1ebfn l\u01b0\u1ee3c chu\u1ea9n h\u00f3a s\u01a1 \u0111\u1ed3 quan h\u1ec7 th\u1ef1c th\u1ec3 cho l\u01b0u tr\u1eef kh\u00f4ng tr\u00f9ng l\u1eb7p","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"Rpb9HZxiVQ\"><a href=\"https:\/\/www.viz-note.com\/vi\/erd-normalization-strategies-zero-redundancy-storage\/\">Kh\u00e1m ph\u00e1 s\u00e2u v\u1ec1 c\u00e1c chi\u1ebfn l\u01b0\u1ee3c chu\u1ea9n h\u00f3a s\u01a1 \u0111\u1ed3 quan h\u1ec7 th\u1ef1c th\u1ec3 nh\u1eb1m l\u01b0u tr\u1eef kh\u00f4ng d\u01b0 th\u1eeba<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.viz-note.com\/vi\/erd-normalization-strategies-zero-redundancy-storage\/embed\/#?secret=Rpb9HZxiVQ\" width=\"600\" height=\"338\" title=\"&#8220;Kh\u00e1m ph\u00e1 s\u00e2u v\u1ec1 c\u00e1c chi\u1ebfn l\u01b0\u1ee3c chu\u1ea9n h\u00f3a s\u01a1 \u0111\u1ed3 quan h\u1ec7 th\u1ef1c th\u1ec3 nh\u1eb1m l\u01b0u tr\u1eef kh\u00f4ng d\u01b0 th\u1eeba&#8221; &#8212; Viz Note Vietnamese - AI Insights &amp; Software Industry Updates\" data-secret=\"Rpb9HZxiVQ\" 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.viz-note.com\/vi\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/www.viz-note.com\/vi\/wp-content\/uploads\/sites\/10\/2026\/04\/chibi-erd-normalization-strategies-zero-redundancy-infographic.jpg","thumbnail_width":1664,"thumbnail_height":928,"description":"H\u1ecdc c\u00e1c chi\u1ebfn l\u01b0\u1ee3c chu\u1ea9n h\u00f3a s\u01a1 \u0111\u1ed3 quan h\u1ec7 th\u1ef1c th\u1ec3 cho l\u01b0u tr\u1eef kh\u00f4ng tr\u00f9ng l\u1eb7p. Bao g\u1ed3m 1NF, 2NF, 3NF, c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng b\u1ea5t th\u01b0\u1eddng v\u00e0 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t v\u1ec1 t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u trong thi\u1ebft k\u1ebf c\u01a1 s\u1edf d\u1eef li\u1ec7u."}