{"id":65273,"date":"2024-03-31T11:05:16","date_gmt":"2024-03-31T04:05:16","guid":{"rendered":"https:\/\/itviec.com\/blog\/?p=65273"},"modified":"2024-04-12T13:56:01","modified_gmt":"2024-04-12T06:56:01","slug":"uu-diem-cua-nosql","status":"publish","type":"post","link":"https:\/\/itviec.com\/blog\/uu-diem-cua-nosql\/","title":{"rendered":"Kh\u00e1m ph\u00e1 \u01b0u \u0111i\u1ec3m c\u1ee7a NoSQL &#8211; S\u1ee9c m\u1ea1nh qu\u1ea3n l\u00fd d\u1eef li\u1ec7u linh ho\u1ea1t"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed9i dung b\u00e0i vi\u1ebft<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/itviec.com\/blog\/uu-diem-cua-nosql\/#Tong_quan_ve_NoSQL\" >T\u1ed5ng quan v\u1ec1 NoSQL<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/itviec.com\/blog\/uu-diem-cua-nosql\/#Vi_sao_NoSQL_tro_nen_pho_bien\" >V\u00ec sao NoSQL tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/itviec.com\/blog\/uu-diem-cua-nosql\/#Uu_diem_cua_NoSQL\" >\u01afu \u0111i\u1ec3m c\u1ee7a NoSQL<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/itviec.com\/blog\/uu-diem-cua-nosql\/#Han_che_cua_co_so_du_lieu_NoSQL\" >H\u1ea1n ch\u1ebf c\u1ee7a c\u01a1 s\u1edf d\u1eef li\u1ec7u NoSQL<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/itviec.com\/blog\/uu-diem-cua-nosql\/#Khi_nao_nen_su_dung_NoSQL\" >Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng NoSQL?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/itviec.com\/blog\/uu-diem-cua-nosql\/#Khi_nao_khong_nen_su_dung_NoSQL\" >Khi n\u00e0o kh\u00f4ng n\u00ean s\u1eed d\u1ee5ng NoSQL?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/itviec.com\/blog\/uu-diem-cua-nosql\/#Ung_dung_thuc_te_cua_NoSQL\" >\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a NoSQL<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/itviec.com\/blog\/uu-diem-cua-nosql\/#Cau_hoi_thuong_gap_ve_uu_diem_cua_NoSQL\" >C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 \u01b0u \u0111i\u1ec3m c\u1ee7a NoSQL<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/itviec.com\/blog\/uu-diem-cua-nosql\/#Tong_ket_Uu_diem_cua_NoSQL\" >T\u1ed5ng k\u1ebft \u01afu \u0111i\u1ec3m c\u1ee7a NoSQL<\/a><\/li><\/ul><\/nav><\/div>\n<p><b><i>Kh\u00e1m ph\u00e1 nh\u1eefng \u01b0u \u0111i\u1ec3m c\u1ee7a NoSQL v\u00e0 s\u1ef1 linh ho\u1ea1t c\u1ee7a lo\u1ea1i c\u01a1 s\u1edf d\u1eef li\u1ec7u n\u00e0y trong vi\u1ec7c \u0111\u00e1p \u1ee9ng c\u00e1c nhu c\u1ea7u th\u1ef1c t\u1ebf c\u1ee7a vi\u1ec7c qu\u1ea3n l\u00fd d\u1eef li\u1ec7u hi\u1ec7n \u0111\u1ea1i.\u00a0<\/i><\/b><\/p>\n<p><span style=\"font-weight: 400;\">\u0110\u1ecdc b\u00e0i vi\u1ebft n\u00e0y \u0111\u1ec3 hi\u1ec3u r\u00f5:\u00a0<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">V\u00ec sao NoSQL \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng?<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a NoSQL.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Khi n\u00e0o n\u00ean v\u00e0 khi n\u00e0o kh\u00f4ng n\u00ean s\u1eed d\u1ee5ng NoSQL.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u1ee8ng d\u1ee5ng c\u1ee7a NoSQL trong c\u00e1c ng\u00e0nh ngh\u1ec1.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Tong_quan_ve_NoSQL\"><\/span><b>T\u1ed5ng quan v\u1ec1 NoSQL<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Trong nhi\u1ec1u n\u0103m, c\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7 l\u00e0 ph\u01b0\u01a1ng ph\u00e1p qu\u1ea3n l\u00fd d\u1eef li\u1ec7u ph\u1ed5 bi\u1ebfn nh\u1ea5t. Tuy nhi\u00ean, g\u1ea7n \u0111\u00e2y c\u01a1 s\u1edf d\u1eef li\u1ec7u phi quan h\u1ec7 NoSQL \u0111ang ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng h\u01a1n v\u00ec \u0111\u01b0a ra \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00e1p qu\u1ea3n l\u00fd c\u01a1 s\u1edf d\u1eef li\u1ec7u t\u1ed1i \u01b0u cho m\u1ed9t s\u1ed1 y\u00eau c\u1ea7u kh\u00f3.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">&#8220;NoSQL&#8221; l\u00e0 thu\u1eadt ng\u1eef \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c lo\u1ea1i c\u01a1 s\u1edf d\u1eef li\u1ec7u phi quan h\u1ec7, n\u01a1i d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef theo m\u1ed9t \u0111\u1ecbnh d\u1ea1ng kh\u00e1c bi\u1ec7t so v\u1edbi c\u00e1c b\u1ea3ng quan h\u1ec7 truy\u1ec1n th\u1ed1ng. Tuy nhi\u00ean, c\u00e1c c\u01a1 s\u1edf d\u1eef li\u1ec7u NoSQL v\u1eabn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c truy v\u1ea5n s\u1eed d\u1ee5ng c\u00e1c API ng\u00f4n ng\u1eef \u0111\u1eb7c th\u00f9, ng\u00f4n ng\u1eef truy v\u1ea5n c\u00f3 c\u1ea5u tr\u00fac, \u0111\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao ch\u00fang c\u00f2n \u0111\u01b0\u1ee3c hi\u1ec3u l\u00e0 &#8220;Not only SQL&#8221;.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">C\u00f3 4 lo\u1ea1i c\u01a1 s\u1edf d\u1eef li\u1ec7u NoSQL ch\u00ednh l\u00e0: Key-value, Document, Graph v\u00e0 Column-family. <\/span><\/p>\n<blockquote><p><em><span style=\"font-weight: 400;\">\u0110\u1ec3 t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 t\u1eebng lo\u1ea1i c\u01a1 s\u1edf d\u1eef li\u1ec7u NoSQL, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ecdc th\u00eam \u1edf b\u00e0i <\/span><strong><a href=\"https:\/\/itviec.com\/blog\/cac-loai-co-so-du-lieu-nosql\/\" target=\"_blank\" rel=\"noopener\">C\u00e1c lo\u1ea1i c\u01a1 s\u1edf d\u1eef li\u1ec7u NoSQL<\/a><\/strong><\/em><\/p><\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"Vi_sao_NoSQL_tro_nen_pho_bien\"><\/span><b>V\u00ec sao NoSQL tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">NoSQL tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn do nhu c\u1ea7u qu\u1ea3n l\u00fd l\u01b0\u1ee3ng d\u1eef li\u1ec7u kh\u1ed5ng l\u1ed3 v\u00e0 \u0111a d\u1ea1ng, n\u01a1i m\u00e0 c\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7 truy\u1ec1n th\u1ed1ng g\u1eb7p kh\u00f3 kh\u0103n trong vi\u1ec7c x\u1eed l\u00fd hi\u1ec7u qu\u1ea3. Trong th\u1ebf gi\u1edbi s\u1ed1 h\u00f3a ng\u00e0y nay, d\u1eef li\u1ec7u kh\u00f4ng ch\u1ec9 l\u1edbn v\u1ec1 quy m\u00f4 m\u00e0 c\u00f2n ph\u1ee9c t\u1ea1p v\u1ec1 c\u1ea5u tr\u00fac, th\u01b0\u1eddng kh\u00f4ng tu\u00e2n theo m\u1ed9t quy chu\u1ea9n r\u00f5 r\u00e0ng ho\u1eb7c kh\u00f4ng c\u00f3 m\u1ed1i quan h\u1ec7 c\u1ed1 \u0111\u1ecbnh.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">NoSQL \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u qu\u1ea3n l\u00fd c\u00e1c lo\u1ea1i d\u1eef li\u1ec7u n\u00e0y b\u1eb1ng c\u00e1ch cung c\u1ea5p s\u1ef1 linh ho\u1ea1t cao trong vi\u1ec7c l\u01b0u tr\u1eef v\u00e0 truy v\u1ea5n d\u1eef li\u1ec7u, t\u1eeb \u0111\u00f3 h\u1ed7 tr\u1ee3 hi\u1ec7u qu\u1ea3 cho vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c \u1ee9ng d\u1ee5ng l\u1edbn v\u00e0 ph\u1ee9c t\u1ea1p.\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Uu_diem_cua_NoSQL\"><\/span><b>\u01afu \u0111i\u1ec3m c\u1ee7a NoSQL<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><b>T\u1ed1c \u0111\u1ed9 cao v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng \u0111a chi\u1ec1u<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">NoSQL \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 cao v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng linh ho\u1ea1t th\u00f4ng qua vi\u1ec7c s\u1eed d\u1ee5ng ki\u1ebfn tr\u00fac scale-out. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p m\u1edf r\u1ed9ng theo chi\u1ec1u ngang b\u1eb1ng c\u00e1ch th\u00eam nhi\u1ec1u m\u00e1y ch\u1ee7, gi\u00fap x\u1eed l\u00fd l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn \u1edf t\u1ed1c \u0111\u1ed9 cao m\u00e0 kh\u00f4ng \u0111\u00f2i h\u1ecfi \u0111\u1ea7u t\u01b0 qu\u00e1 nhi\u1ec1u v\u00e0o c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng. Trong khi \u0111\u00f3 v\u1edbi SQL th\u00ec vi\u1ec7c m\u1edf r\u1ed9ng t\u01b0\u01a1ng t\u1ef1 c\u00f3 th\u1ec3 t\u1ed1n k\u00e9m, \u0111\u00f2i h\u1ecfi nhi\u1ec1u nh\u00e2n l\u1ef1c ho\u1eb7c th\u1eadm ch\u00ed kh\u00f4ng kh\u1ea3 thi.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">B\u00ean c\u1ea1nh vi\u1ec7c m\u1edf r\u1ed9ng b\u1eb1ng c\u00e1ch th\u00eam m\u00e1y ch\u1ee7, NoSQL c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng theo chi\u1ec1u d\u1ecdc b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng ph\u1ea7n c\u1ee9ng ti\u00eau chu\u1ea9n nh\u01b0 CPU, \u1ed5 c\u1ee9ng, b\u1ed9 nh\u1edb,&#8230;. \u0110i\u1ec1u n\u00e0y gi\u00fap h\u1ed7 tr\u1ee3 l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp gia t\u0103ng \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u m\u00e0 kh\u00f4ng g\u00e2y gi\u00e1n \u0111o\u1ea1n.\u00a0<\/span><\/p>\n<h3><b>L\u01b0u tr\u1eef \u0111a d\u1ea1ng d\u1eef li\u1ec7u<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">M\u1ed9t trong nh\u1eefng \u01b0u \u0111i\u1ec3m c\u1ee7a NoSQL m\u00e0 th\u1eadt s\u1ef1 n\u1ed5i b\u1eadt l\u00e0 kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef linh ho\u1ea1t, gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng b\u01b0\u1edbc chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u so v\u1edbi c\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7. \u0110i\u1ec1u n\u00e0y gi\u00fap thu\u1eadn ti\u1ec7n trong qu\u00e1 tr\u00ecnh l\u01b0u tr\u1eef v\u00e0 truy xu\u1ea5t d\u1eef li\u1ec7u v\u1edbi nhi\u1ec1u \u0111\u1ecbnh d\u1ea1ng kh\u00e1c nhau:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">D\u1eef li\u1ec7u l\u1edbn: Hi\u1ec7u qu\u1ea3 cho m\u1ecdi lo\u1ea1i d\u1eef li\u1ec7u l\u1edbn, t\u1eeb v\u0103n b\u1ea3n \u0111\u1ebfn d\u1eef li\u1ec7u time-series (chu\u1ed7i th\u1eddi gian).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">JSON: H\u1ed7 tr\u1ee3 t\u1ec7p JSON, \u0111\u1ecbnh d\u1ea1ng \u0111\u1ecdc hi\u1ec3u \u0111\u01b0\u1ee3c v\u1edbi c\u1ea5u tr\u00fac ph\u1ee9c t\u1ea1p, gi\u00fap l\u01b0u tr\u1eef hi\u1ec7u qu\u1ea3 trong c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u0103n b\u1ea3n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">D\u1eef li\u1ec7u nh\u1ecb ph\u00e2n \u0111\u01a1n gi\u1ea3n: X\u1eed l\u00fd gi\u00e1 tr\u1ecb nh\u1ecb ph\u00e2n, list, map v\u00e0 chu\u1ed7i v\u1edbi t\u1ed1c \u0111\u1ed9 cao v\u1edbi c\u01a1 s\u1edf d\u1eef li\u1ec7u key-value.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">D\u1eef li\u1ec7u b\u1ecb khuy\u1ebft hay d\u1eef li\u1ec7u th\u01b0a: L\u01b0u tr\u1eef hi\u1ec7u qu\u1ea3 d\u1eef li\u1ec7u b\u1ecb khuy\u1ebft trong c\u01a1 s\u1edf d\u1eef li\u1ec7u c\u1ed9t khi m\u00e0 kh\u00f4ng c\u00f3 nhi\u1ec1u gi\u00e1 tr\u1ecb NULL, \u0111\u1eb7c bi\u1ec7t th\u00edch h\u1ee3p cho c\u00e1c tr\u01b0\u1eddng h\u1ee3p th\u00f4ng tin \u00edt thay \u0111\u1ed5i.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">D\u1eef li\u1ec7u c\u00f3 li\u00ean k\u1ebft (ch\u1eb3ng h\u1ea1n nh\u01b0 d\u1eef li\u1ec7u v\u1ec1 c\u00e1c m\u1ed1i quan h\u1ec7 gi\u1eefa ng\u01b0\u1eddi d\u00f9ng tr\u00ean m\u1ea1ng x\u00e3 h\u1ed9i) c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef hi\u1ec7u qu\u1ea3 trong c\u01a1 s\u1edf d\u1eef li\u1ec7u \u0111\u1ed3 th\u1ecb, h\u1ed7 tr\u1ee3 ph\u00e2n t\u00edch m\u1ed1i quan h\u1ec7 v\u00e0 t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c th\u00e0nh ph\u1ea7n d\u1eef li\u1ec7u.<\/span><\/li>\n<\/ul>\n<h3><b>Kh\u00f4ng y\u00eau c\u1ea7u schema c\u1ed1 \u0111\u1ecbnh<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">So v\u1edbi SQL, NoSQL cho ph\u00e9p thay \u0111\u1ed5i c\u1ea5u tr\u00fac d\u1eef li\u1ec7u tr\u1ef1c ti\u1ebfp.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">V\u00ed d\u1ee5, trong c\u01a1 s\u1edf d\u1eef li\u1ec7u Document, b\u1ea1n c\u00f3 th\u1ec3 th\u00eam m\u1ed9t document m\u1edbi m\u00e0 kh\u00f4ng l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u1ea5u tr\u00fac hi\u1ec7n t\u1ea1i. T\u01b0\u01a1ng t\u1ef1, v\u1edbi c\u01a1 s\u1edf d\u1eef li\u1ec7u Key-value, b\u1ea1n c\u00f3 th\u1ec3 th\u00eam gi\u00e1 tr\u1ecb ho\u1eb7c c\u1ed9t m\u1edbi m\u00e0 kh\u00f4ng l\u00e0m thay \u0111\u1ed5i c\u1ea5u tr\u00fac hi\u1ec7n t\u1ea1i.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">B\u00ean c\u1ea1nh \u0111\u00f3, NoSQL c\u00f2n cho ph\u00e9p l\u01b0u tr\u1eef d\u1eef li\u1ec7u theo c\u00e1ch t\u1ef1 do h\u01a1n v\u00e0 kh\u00f4ng y\u00eau c\u1ea7u m\u1ed9t schema c\u1ed1 \u0111\u1ecbnh nh\u01b0 trong SQL. \u0110i\u1ec1u n\u00e0y gi\u00fap t\u1ea1o ra m\u00f4i tr\u01b0\u1eddng linh ho\u1ea1t, thu\u1eadn ti\u1ec7n cho vi\u1ec7c th\u00edch \u1ee9ng v\u1edbi d\u1eef li\u1ec7u m\u1edbi v\u00e0 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho s\u1ef1 \u0111\u1ed5i m\u1edbi v\u00e0 ph\u00e1t tri\u1ec3n.\u00a0<\/span><\/p>\n<h3><b>Th\u00e2n thi\u1ec7n v\u1edbi ng\u01b0\u1eddi d\u00f9ng<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">NoSQL s\u1eed d\u1ee5ng \u0111\u1ecbnh d\u1ea1ng d\u1eef li\u1ec7u linh ho\u1ea1t nh\u01b0 JSON gi\u00fap ng\u01b0\u1eddi ph\u00e1t tri\u1ec3n d\u1ec5 d\u00e0ng ki\u1ec3m so\u00e1t c\u1ea5u tr\u00fac d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng c\u1ea7n nhi\u1ec1u c\u00f4ng \u0111o\u1ea1n chuy\u1ec3n \u0111\u1ed5i ph\u1ee9c t\u1ea1p.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ngo\u00e0i ra, c\u1ea5u tr\u00fac d\u1eef li\u1ec7u trong c\u01a1 s\u1edf d\u1eef li\u1ec7u NoSQL th\u01b0\u1eddng t\u01b0\u01a1ng \u0111\u1ed3ng v\u1edbi c\u00e1ch m\u00e0 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n trong \u1ee9ng d\u1ee5ng n\u00ean kh\u00f4ng c\u1ea7n nhi\u1ec1u b\u01b0\u1edbc bi\u1ebfn \u0111\u1ed5i khi ph\u1ea3i di chuy\u1ec3n d\u1eef li\u1ec7u nh\u01b0 c\u00e1c c\u01a1 s\u1edf d\u1eef li\u1ec7u kh\u00e1c. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1eef nguy\u00ean s\u1ef1 nguy\u00ean b\u1ea3n c\u1ee7a \u0111\u1ecbnh d\u1ea1ng d\u1eef li\u1ec7u, nh\u1edd \u0111\u00f3 gi\u1ea3m b\u1edbt s\u1ef1 ph\u1ee9c t\u1ea1p trong qu\u00e1 tr\u00ecnh tri\u1ec3n khai c\u01a1 s\u1edf d\u1eef li\u1ec7u m\u1edbi v\u00ec kh\u00f4ng c\u1ea7n nhi\u1ec1u c\u00f4ng c\u1ee5 \u0111\u1ec3 x\u1eed l\u00fd c\u00e1c \u0111\u1ecbnh d\u1ea1ng d\u1eef li\u1ec7u kh\u00e1c nhau.<\/span><\/p>\n<h3><b>T\u1eadn d\u1ee5ng t\u1ed1i \u0111a \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Thay v\u00ec ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c t\u0103ng k\u00edch th\u01b0\u1edbc c\u1ee7a m\u00e1y ch\u1ee7 c\u1ee5c b\u1ed9, ki\u1ebfn tr\u00fac m\u1edf r\u1ed9ng c\u1ee7a NoSQL chia d\u1eef li\u1ec7u v\u00e0 c\u00f4ng vi\u1ec7c x\u1eed l\u00fd qua m\u1ed9t c\u1ee5m m\u00e1y ch\u1ee7 tr\u00ean cloud, gi\u00fap t\u0103ng kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i m\u1ed9t c\u00e1ch linh ho\u1ea1t. \u0110i\u1ec1u n\u00e0y kh\u00f4ng ch\u1ec9 gi\u00fap d\u1ec5 d\u00e0ng m\u1edf r\u1ed9ng \u0111\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u v\u1ec1 dung l\u01b0\u1ee3ng v\u00e0 l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp ng\u00e0y c\u00e0ng l\u1edbn, m\u00e0 c\u00f2n cho ph\u00e9p h\u1ec7 th\u1ed1ng m\u1edf r\u1ed9ng v\u00e0 thu h\u1eb9p t\u1ef1 \u0111\u1ed9ng.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">M\u1ed9t \u0111i\u1ec3m \u0111\u1eb7c bi\u1ec7t l\u00e0 kh\u1ea3 n\u0103ng n\u00e2ng c\u1ea5p v\u00e0 thay \u0111\u1ed5i c\u1ea5u tr\u00fac c\u1ee7a c\u01a1 s\u1edf d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng l\u00e0m gi\u00e1n \u0111o\u1ea1n qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng. \u0110i\u1ec1u n\u00e0y gi\u00fap duy tr\u00ec s\u1ef1 li\u00ean t\u1ee5c trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n v\u00e0 qu\u1ea3n l\u00fd.\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Han_che_cua_co_so_du_lieu_NoSQL\"><\/span><b>H\u1ea1n ch\u1ebf c\u1ee7a c\u01a1 s\u1edf d\u1eef li\u1ec7u NoSQL<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><b>Truy v\u1ea5n \u00edt linh ho\u1ea1t<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u01afu \u0111i\u1ec3m c\u1ee7a NoSQL l\u00e0 c\u00f3 t\u00ednh linh ho\u1ea1t cao trong vi\u1ec7c l\u01b0u tr\u1eef c\u1ea5u tr\u00fac d\u1eef li\u1ec7u \u0111a d\u1ea1ng, nh\u01b0ng n\u00f3 thi\u1ebfu kh\u1ea3 n\u0103ng th\u1ef1c hi\u1ec7n c\u00e1c truy v\u1ea5n ph\u1ee9c t\u1ea1p v\u00e0 hi\u1ec7u qu\u1ea3 m\u00e0 SQL th\u01b0\u1eddng c\u00f3.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">V\u00ed d\u1ee5, NoSQL th\u01b0\u1eddng kh\u00f4ng th\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh duy nh\u1ea5t cho c\u00e1c kh\u00f3a trong m\u1ed9t document.<\/span><\/p>\n<h3><b>Thi\u1ebfu h\u1ee5t t\u00e0i li\u1ec7u<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Do m\u1edbi tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn g\u1ea7n \u0111\u00e2y, NoSQL hi\u1ec7n \u0111ang thi\u1ebfu s\u1ef1 h\u1ed7 tr\u1ee3 tr\u1ef1c tuy\u1ebfn, t\u00e0i li\u1ec7u v\u00e0 h\u01b0\u1edbng d\u1eabn kh\u00f4ng \u0111\u01b0\u1ee3c phong ph\u00fa nh\u01b0 SQL. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y kh\u00f3 kh\u0103n khi \u0111\u1ed1i m\u1eb7t v\u1edbi m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 c\u1ee5 th\u1ec3.<\/span><\/p>\n<h3><b>Kh\u00f4ng t\u1ef1 m\u1edf r\u1ed9ng<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">NoSQL kh\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 t\u1ef1 m\u1edf r\u1ed9ng, \u0111\u00f2i h\u1ecfi s\u1ef1 t\u00edch h\u1ee3p th\u00eam c\u00e1c th\u00e0nh ph\u1ea7n h\u1ea1 t\u1ea7ng, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 t\u0103ng chi ph\u00ed v\u00e0 g\u00e1nh n\u1eb7ng \u0111\u1ec3 v\u1eadn h\u00e0nh.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Khi_nao_nen_su_dung_NoSQL\"><\/span><b>Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng NoSQL?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><b>Ph\u00e2n t\u00edch th\u1eddi gian th\u1ef1c<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Trong c\u00e1c nhi\u1ec7m v\u1ee5 ph\u00e2n t\u00edch d\u1eef li\u1ec7u th\u1eddi gian th\u1ef1c, NoSQL mang l\u1ea1i l\u1ee3i th\u1ebf v\u1ec1 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng nhanh ch\u00f3ng, x\u1eed l\u00fd hi\u1ec7u qu\u1ea3 c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u v\u1edbi t\u1ed1c \u0111\u1ed9 cao v\u00e0 th\u1ef1c hi\u1ec7n truy v\u1ea5n nhanh ch\u00f3ng.<\/span><\/p>\n<h3><b>H\u1ec7 th\u1ed1ng c\u1ea7n update li\u00ean t\u1ee5c<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">C\u00e1c h\u1ec7 th\u1ed1ng y\u00eau c\u1ea7u vi\u1ec7c ghi ho\u1eb7c c\u1eadp nh\u1eadt, thay \u0111\u1ed5i c\u01a1 s\u1edf d\u1eef li\u1ec7u th\u01b0\u1eddng xuy\u00ean c\u00f3 th\u1ec3 h\u01b0\u1edfng l\u1ee3i t\u1eeb kh\u1ea3 n\u0103ng x\u1eed l\u00fd ghi cao c\u1ee7a NoSQL, v\u00ed d\u1ee5 nh\u01b0: h\u1ec7 th\u1ed1ng l\u01b0u log, h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef d\u1eef li\u1ec7u IoT (Internet of Thing) v\u00e0 h\u1ec7 th\u1ed1ng l\u01b0u event.<\/span><\/p>\n<h3><b>Qu\u1ea3n l\u00fd n\u1ed9i dung<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">V\u1edbi m\u00f4 h\u00ecnh d\u1eef li\u1ec7u linh ho\u1ea1t v\u00e0 t\u00ednh phi c\u1ea5u tr\u00fac, NoSQL c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng t\u00ednh linh \u0111\u1ed9ng v\u00e0 kh\u00f4ng c\u00f3 c\u1ea5u tr\u00fac c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd n\u1ed9i dung. Ch\u00fang cung c\u1ea5p kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef v\u00e0 truy xu\u1ea5t c\u00e1c lo\u1ea1i n\u1ed9i dung m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/span><\/p>\n<h3><b>\u1ee8ng d\u1ee5ng m\u1ea1ng x\u00e3 h\u1ed9i<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">D\u1eef li\u1ec7u tr\u00ean \u1ee9ng d\u1ee5ng m\u1ea1ng x\u00e3 h\u1ed9i c\u00f3 r\u1ea5t nhi\u1ec1u c\u00e1c \u0111i\u1ec3m d\u1eef li\u1ec7u k\u1ebft n\u1ed1i v\u1edbi nhau nh\u01b0 m\u1ed9t m\u1ea1ng l\u01b0\u1edbi. C\u01a1 s\u1edf d\u1eef li\u1ec7u Graph cung c\u1ea5p ph\u01b0\u01a1ng th\u1ee9c l\u01b0u tr\u1eef v\u00e0 thu\u1eadt to\u00e1n truy v\u1ea5n ph\u00f9 h\u1ee3p \u0111\u1ec3 l\u01b0u tr\u1eef m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 c\u00e1c m\u1ed1i quan h\u1ec7 ph\u1ee9c t\u1ea1p trong \u1ee9ng d\u1ee5ng m\u1ea1ng x\u00e3 h\u1ed9i v\u00e0 c\u00e1 nh\u00e2n ho\u00e1 c\u00e1c g\u1ee3i \u00fd cho ng\u01b0\u1eddi d\u00f9ng (k\u1ebft b\u1ea1n, mua s\u1eafm, qu\u1ea3ng c\u00e1o, th\u00f4ng b\u00e1o, \u2026)\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Khi_nao_khong_nen_su_dung_NoSQL\"><\/span><b>Khi n\u00e0o kh\u00f4ng n\u00ean s\u1eed d\u1ee5ng NoSQL?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">B\u00ean c\u1ea1nh nh\u1eefng \u1ee9ng d\u1ee5ng tuy\u1ec7t v\u1eddi nh\u01b0 tr\u00ean th\u00ec c\u00f3 m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p NoSQL kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1i \u01b0u nh\u01b0:<\/span><\/p>\n<h3><b>Th\u1ef1c hi\u1ec7n c\u00e1c truy v\u1ea5n ph\u1ee9c t\u1ea1p<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u0110\u1ed1i v\u1edbi <\/span><span style=\"font-weight: 400;\">c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n th\u1ef1c hi\u1ec7n c\u00e1c truy v\u1ea5n ph\u1ee9c t\u1ea1p <\/span><span style=\"font-weight: 400;\">gi\u1eefa nhi\u1ec1u b\u1ea3ng ho\u1eb7c c\u00f3 c\u00e1c r\u00e0ng bu\u1ed9c v\u1ec1 m\u00f4 h\u00ecnh d\u1eef li\u1ec7u nghi\u00eam ng\u1eb7t th\u00ec SQL d\u01b0\u1eddng nh\u01b0 l\u00e0 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p h\u01a1n.<\/span><\/p>\n<h3><b>Y\u00eau c\u1ea7u v\u1ec1 t\u00ednh nh\u1ea5t qu\u00e1n<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p \u0111\u00f2i h\u1ecfi t\u00ednh nh\u1ea5t qu\u00e1n m\u1ea1nh m\u1ebd v\u00e0 c\u00e1c \u0111\u1ea3m b\u1ea3o ACID (Atomicity, Consistency, Isolation, Durability), nh\u01b0 c\u00e1c h\u1ec7 th\u1ed1ng t\u00e0i ch\u00ednh ho\u1eb7c n\u1ec1n t\u1ea3ng th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed th\u00ec SQL cung c\u1ea5p gi\u1ea3i ph\u00e1p t\u1ed1t h\u01a1n v\u1edbi c\u01a1 ch\u1ebf \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh nguy\u00ean v\u1eb9n d\u1eef li\u1ec7u v\u00e0 t\u00ednh nh\u1ea5t qu\u00e1n giao d\u1ecbch.<\/span><\/p>\n<h3><b>X\u00e1c \u0111\u1ecbnh schema<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">N\u1ebfu d\u1eef li\u1ec7u trong \u1ee9ng d\u1ee5ng c\u00f3 c\u1ea5u tr\u00fac r\u00f5 r\u00e0ng v\u00e0 c\u00e1c truy v\u1ea5n \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh tr\u01b0\u1edbc th\u00ec vi\u1ec7c s\u1eed d\u1ee5ng c\u01a1 s\u1edf d\u1eef li\u1ec7u SQL v\u1edbi m\u1ed9t schema c\u1ed1 \u0111\u1ecbnh c\u00f3 th\u1ec3 l\u00e0 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p h\u01a1n. \u0110i\u1ec1u n\u00e0y gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c qu\u1ea3n l\u00fd d\u1eef li\u1ec7u v\u00e0 t\u1ed1i \u01b0u h\u00f3a c\u00e1c truy v\u1ea5n, do m\u1ecdi th\u1ee9 \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1ecbnh r\u00f5 t\u1eeb tr\u01b0\u1edbc.<\/span><\/p>\n<blockquote><p><em>Xem th\u00eam: <strong><a href=\"https:\/\/itviec.com\/blog\/nosql-la-gi\/\" target=\"_blank\" rel=\"noopener\">So s\u00e1nh gi\u1eefa NoSQL v\u00e0 SQL<\/a><\/strong><\/em><\/p><\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"Ung_dung_thuc_te_cua_NoSQL\"><\/span><b>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a NoSQL<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><b>L\u01b0u tr\u1eef Phi\u00ean:<\/b><span style=\"font-weight: 400;\"> NoSQL r\u1ea5t l\u00fd t\u01b0\u1edfng cho vi\u1ec7c qu\u1ea3n l\u00fd d\u1eef li\u1ec7u phi\u00ean l\u1edbn v\u00e0 kh\u00f4ng c\u1ea5u tr\u00fac trong \u1ee9ng d\u1ee5ng web, cung c\u1ea5p m\u1ed9t kho l\u01b0u tr\u1eef phi\u00ean v\u00e0 x\u1eed l\u00fd th\u00f4ng tin hi\u1ec7u qu\u1ea3 cho m\u1ecdi ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp trang web.<\/span><\/li>\n<li><b>L\u01b0u tr\u1eef H\u1ed3 S\u01a1 Ng\u01b0\u1eddi D\u00f9ng:<\/b><span style=\"font-weight: 400;\"> NoSQL l\u00e0 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 \u0111\u1ec3 l\u01b0u tr\u1eef h\u1ed3 s\u01a1 ng\u01b0\u1eddi d\u00f9ng, cho ph\u00e9p \u1ee9ng d\u1ee5ng web v\u00e0 di \u0111\u1ed9ng qu\u1ea3n l\u00fd giao d\u1ecbch tr\u1ef1c tuy\u1ebfn, s\u1edf th\u00edch ng\u01b0\u1eddi d\u00f9ng,&#8230;. Ngo\u00e0i ra c\u00f2n c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng m\u1edf r\u1ed9ng \u0111\u1ec3 \u0111\u00e1p \u1ee9ng l\u01b0\u1ee3ng d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng ng\u00e0y c\u00e0ng t\u0103ng.<\/span><\/li>\n<li><b>L\u01b0u tr\u1eef N\u1ed9i dung v\u00e0 Si\u00eau D\u1eef Li\u1ec7u:<\/b><span style=\"font-weight: 400;\"> C\u00e1c c\u00f4ng ty, \u0111\u1eb7c bi\u1ec7t trong ng\u00e0nh xu\u1ea5t b\u1ea3n c\u00f3 th\u1ec3 t\u1eadn d\u1ee5ng NoSQL \u0111\u1ec3 l\u01b0u tr\u1eef l\u01b0\u1ee3ng l\u1edbn n\u1ed9i dung v\u00e0 si\u00eau d\u1eef li\u1ec7u. T\u00ednh linh ho\u1ea1t c\u1ee7a NoSQL gi\u00fap truy c\u1eadp d\u1eef li\u1ec7u nhanh ch\u00f3ng trong c\u00e1c \u1ee9ng d\u1ee5ng d\u1ef1a tr\u00ean n\u1ed9i dung.<\/span><\/li>\n<li><b>\u1ee8ng d\u1ee5ng Di \u0111\u1ed9ng:<\/b><span style=\"font-weight: 400;\"> NoSQL h\u1ed7 tr\u1ee3 s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a \u1ee9ng d\u1ee5ng di \u0111\u1ed9ng b\u1eb1ng c\u00e1ch cho ph\u00e9p m\u1edf r\u1ed9ng d\u1ec5 d\u00e0ng khi c\u01a1 s\u1edf ng\u01b0\u1eddi d\u00f9ng t\u0103ng l\u00ean. C\u1ea5u tr\u00fac kh\u00f4ng c\u1ea7n schema c\u1ee7a n\u00f3 cho ph\u00e9p l\u1eadp tr\u00ecnh vi\u00ean c\u1eadp nh\u1eadt \u1ee9ng d\u1ee5ng m\u00e0 kh\u00f4ng c\u1ea7n s\u1eeda \u0111\u1ed5i l\u1edbn trong c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/span><\/li>\n<li><b>T\u1ed5 ch\u1ee9c D\u1eef li\u1ec7u c\u1ee7a B\u00ean Th\u1ee9 Ba:<\/b><span style=\"font-weight: 400;\"> C\u01a1 s\u1edf d\u1eef li\u1ec7u NoSQL ph\u00f9 h\u1ee3p \u0111\u1ec3 qu\u1ea3n l\u00fd l\u01b0\u1ee3ng l\u1edbn d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi ngu\u1ed3n th\u00f4ng tin b\u00ean th\u1ee9 ba. \u0110i\u1ec1u n\u00e0y ph\u00f9 h\u1ee3p cho c\u00e1c doanh nghi\u1ec7p c\u1ea7n truy c\u1eadp v\u00e0o d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c t\u1ea1o ra t\u1eeb ph\u00eda \u0111\u1ed1i t\u00e1c.<\/span><\/li>\n<li><b>Internet of Things (IoT):<\/b><span style=\"font-weight: 400;\"> C\u00e1c thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i Internet nh\u01b0 \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh, m\u00e1y t\u00ednh b\u1ea3ng, thi\u1ebft b\u1ecb gia \u0111\u00ecnh, h\u1ec7 th\u1ed1ng trong b\u1ec7nh vi\u1ec7n, \u00f4 t\u00f4 v\u00e0 kho h\u00e0ng, t\u1ea1o ra l\u01b0\u1ee3ng l\u1edbn v\u00e0 \u0111a d\u1ea1ng d\u1eef li\u1ec7u. C\u01a1 s\u1edf d\u1eef li\u1ec7u NoSQL cho ph\u00e9p t\u1ed5 ch\u1ee9c m\u1edf r\u1ed9ng quy\u1ec1n truy c\u1eadp \u0111\u1ed3ng th\u1eddi \u0111\u1ebfn h\u00e0ng t\u1ef7 thi\u1ebft b\u1ecb v\u00e0 h\u1ec7 th\u1ed1ng, gi\u00fap l\u01b0u tr\u1eef l\u01b0\u1ee3ng l\u1edbn d\u1eef li\u1ec7u v\u00e0 \u0111\u00e1p \u1ee9ng hi\u1ec7u su\u1ea5t y\u00eau c\u1ea7u.<\/span><\/li>\n<\/ul>\n<blockquote><p><em>\u0110\u1ecdc th\u00eam: <a href=\"https:\/\/itviec.com\/blog\/iot-la-gi\/\" target=\"_blank\" rel=\"noopener\"><strong>IoT l\u00e0 g\u00ec m\u00e0 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u201ck\u1ecbch b\u1ea3n c\u1ee7a th\u1ebf gi\u1edbi\u201d?<\/strong><\/a><\/em><\/p><\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"Cau_hoi_thuong_gap_ve_uu_diem_cua_NoSQL\"><\/span><b>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 \u01b0u \u0111i\u1ec3m c\u1ee7a NoSQL<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><b>NoSQL c\u00f3 ph\u1ea3i l\u00e0 s\u1ef1 thay th\u1ebf c\u1ee7a SQL kh\u00f4ng?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Kh\u00f4ng, c\u01a1 s\u1edf d\u1eef li\u1ec7u NoSQL \u0111\u01b0\u1ee3c t\u1ea1o ra \u0111\u1ec3 b\u1ed5 sung, gi\u1ea3i quy\u1ebft nh\u1eefng v\u1ea5n \u0111\u1ec1 m\u00e0 SQL l\u00e0m ch\u01b0a t\u1ed1t ch\u1ee9 kh\u00f4ng ph\u1ea3i \u0111\u1ec3 thay th\u1ebf SQL.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">C\u1ea3 hai \u0111\u1ec1u c\u00f3 nh\u1eefng \u0111i\u1ec3m m\u1ea1nh ri\u00eang v\u00e0 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong t\u1eebng tr\u01b0\u1eddng h\u1ee3p c\u1ee5 th\u1ec3 n\u00ean kh\u00f4ng th\u1ec3 n\u00f3i c\u00e1i n\u00e0o l\u00e0 thay th\u1ebf cho c\u00e1i n\u00e0o.<\/span><\/p>\n<h3><b>N\u00ean s\u1eed d\u1ee5ng SQL hay NoSQL?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Quy\u1ebft \u0111\u1ecbnh gi\u1eefa s\u1eed d\u1ee5ng SQL hay NoSQL ph\u1ee5 thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a d\u1ef1 \u00e1n. SQL l\u00e0 c\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7, th\u00edch h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 y\u00eau c\u1ea7u v\u1ec1 quan h\u1ec7 gi\u1eefa d\u1eef li\u1ec7u v\u00e0 c\u00e1c truy v\u1ea5n ph\u1ee9c t\u1ea1p.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ng\u01b0\u1ee3c l\u1ea1i, NoSQL, v\u1edbi t\u00ednh linh ho\u1ea1t v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng, th\u00edch h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi x\u1eed l\u00fd d\u1eef li\u1ec7u l\u1edbn, c\u1ea5u tr\u00fac \u0111a d\u1ea1ng, v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng hi\u1ec7u qu\u1ea3.<\/span><\/p>\n<blockquote><p><em>\u0110\u1ecdc th\u00eam: <a href=\"https:\/\/itviec.com\/blog\/sql-la-gi\/\" target=\"_blank\" rel=\"noopener\"><strong>Truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u l\u00e0 g\u00ec? T\u1ea5t t\u1ea7n t\u1eadt v\u1ec1 ng\u00f4n ng\u1eef SQL \u0111\u1ec1u n\u1eb1m trong b\u00e0i vi\u1ebft n\u00e0y<\/strong><\/a><\/em><\/p><\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"Tong_ket_Uu_diem_cua_NoSQL\"><\/span><b>T\u1ed5ng k\u1ebft \u01afu \u0111i\u1ec3m c\u1ee7a NoSQL<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">NoSQL \u0111em l\u1ea1i nhi\u1ec1u \u01b0u \u0111i\u1ec3m quan tr\u1ecdng nh\u01b0 kh\u1ea3 n\u0103ng x\u1eed l\u00fd kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn d\u1eef li\u1ec7u, linh ho\u1ea1t c\u1ea5u tr\u00fac, v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng hi\u1ec7u qu\u1ea3, gi\u00fap gi\u1ea3i quy\u1ebft c\u00e1c th\u00e1ch th\u1ee9c c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng ng\u00e0y nay.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Tuy nhi\u00ean, NoSQL v\u1eabn c\u00f2n m\u1ed9t s\u1ed1 h\u1ea1n ch\u1ebf m\u00e0 ng\u01b0\u1eddi d\u00f9ng c\u1ea7n c\u00e2n nh\u1eafc tr\u01b0\u1edbc khi \u1ee9ng d\u1ee5ng v\u00e0o m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p. Qua b\u00e0i vi\u1ebft tr\u00ean, ITViec mong b\u1ea1n c\u00f3 th\u1ec3 n\u1eafm \u0111\u01b0\u1ee3c c\u00e1c \u01b0u, nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a NoSQL v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a NoSQL v\u00e0o c\u00e1c ng\u00e0nh trong th\u1ef1c t\u1ebf.<\/span><\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" class=\"sp-no-webp wp-image-5668 aligncenter sp-no-webp entered lazyloaded\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2.png\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2-200x200.png 200w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2-60x60.png 60w\" alt=\"robby-2\" width=\"300\" height=\"300\" data-lazy-src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2.png\" data-lazy-sizes=\"(max-width: 300px) 100vw, 300px\" data-lazy-srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2-200x200.png 200w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2-60x60.png 60w\" data-ll-status=\"loaded\" \/><\/figure>\n<\/div>\n<p id=\"block-bdf220a1-3635-4794-9101-81d879939b92\" class=\"has-text-align-center\" style=\"text-align: center;\"><strong>B\u1ea1n th\u1ea5y b\u00e0i vi\u1ebft hay v\u00e0 h\u1eefu \u00edch? \u0110\u1eebng ng\u1ea1i Share v\u1edbi b\u1ea1n b\u00e8 v\u00e0 \u0111\u1ed3ng nghi\u1ec7p nh\u00e9.<\/strong><\/p>\n<p id=\"block-a1315aab-406f-48df-97fc-6b9584e6e134\" class=\"has-text-align-center\" style=\"text-align: center;\"><strong>V\u00e0 nhanh tay tham kh\u1ea3o\u00a0<a href=\"http:\/\/itviec.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">vi\u1ec7c l\u00e0m IT<\/a>\u00a0\u201cch\u1ea5t\u201d tr\u00ean ITviec<\/strong>!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 nh\u1eefng \u01b0u \u0111i\u1ec3m c\u1ee7a NoSQL v\u00e0 s\u1ef1 linh ho\u1ea1t c\u1ee7a lo\u1ea1i c\u01a1 s\u1edf d\u1eef li\u1ec7u n\u00e0y trong vi\u1ec7c \u0111\u00e1p \u1ee9ng c\u00e1c nhu c\u1ea7u th\u1ef1c t\u1ebf c\u1ee7a vi\u1ec7c qu\u1ea3n l\u00fd d\u1eef li\u1ec7u hi\u1ec7n \u0111\u1ea1i.\u00a0 \u0110\u1ecdc b\u00e0i vi\u1ebft n\u00e0y \u0111\u1ec3 hi\u1ec3u r\u00f5:\u00a0 V\u00ec sao NoSQL \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng? \u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a NoSQL. Khi [&hellip;]<\/p>\n","protected":false},"author":209,"featured_media":65275,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","footnotes":""},"categories":[109],"tags":[],"class_list":["post-65273","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chuyen-mon-it"],"blocksy_meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.8 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>\u01afu \u0111i\u1ec3m c\u1ee7a NoSQL: Khi n\u00e0o n\u00ean v\u00e0 kh\u00f4ng n\u00ean d\u00f9ng NoSQL? - ITviec Blog<\/title>\n<meta name=\"description\" content=\"Kh\u00e1m ph\u00e1 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf v\u00e0 \u01b0u \u0111i\u1ec3m c\u1ee7a NoSQL. 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