{"id":4264,"date":"2026-05-23T00:00:57","date_gmt":"2026-05-22T17:00:57","guid":{"rendered":"https:\/\/technest.com.vn\/?p=4264"},"modified":"2026-04-23T15:40:23","modified_gmt":"2026-04-23T08:40:23","slug":"etl","status":"publish","type":"post","link":"https:\/\/technest.com.vn\/vi\/etl\/","title":{"rendered":"ETL (Extract Transform Load) l\u00e0 g\u00ec? Quy tr\u00ecnh c\u01a1 b\u1ea3n"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Trong k\u1ef7 nguy\u00ean s\u1ed1, d\u1eef li\u1ec7u th\u00f4 th\u01b0\u1eddng n\u1eb1m r\u1ea3i r\u00e1c \u1edf nhi\u1ec1u n\u01a1i v\u00e0 kh\u00f4ng c\u00f3 c\u1ea5u tr\u00fac th\u1ed1ng nh\u1ea5t. \u0110\u1ec3 bi\u1ebfn nh\u1eefng con s\u1ed1 v\u00f4 h\u1ed3n th\u00e0nh th\u00f4ng tin c\u00f3 gi\u00e1 tr\u1ecb, ch\u00fang ta c\u1ea7n m\u1ed9t quy tr\u00ecnh x\u1eed l\u00fd chuy\u00ean nghi\u1ec7p. \u0110\u00f3 ch\u00ednh l\u00e0 l\u00fac <\/span><a title=\"ETL (Extract Transform Load)\" href=\"https:\/\/technest.com.vn\/vi\/etl\/\"><b>ETL (Extract Transform Load)<\/b><\/a><span style=\"font-weight: 400;\"> xu\u1ea5t hi\u1ec7n nh\u01b0 m\u1ed9t &#8220;x\u01b0\u01a1ng s\u1ed1ng&#8221; trong h\u1ec7 th\u1ed1ng qu\u1ea3n tr\u1ecb d\u1eef li\u1ec7u.<\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 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\">Table of Contents<\/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:\/\/technest.com.vn\/vi\/etl\/#ETL_Extract_Transform_Load_la_gi\" >ETL (Extract Transform Load) l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/technest.com.vn\/vi\/etl\/#Tai_sao_ETL_quan_trong\" >T\u1ea1i sao ETL quan tr\u1ecdng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/technest.com.vn\/vi\/etl\/#Loi_ich_cua_ETL\" >L\u1ee3i \u00edch c\u1ee7a ETL<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/technest.com.vn\/vi\/etl\/#Ba_giai_doan_chinh_trong_ETL\" >Ba giai \u0111o\u1ea1n ch\u00ednh trong ETL<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/technest.com.vn\/vi\/etl\/#Extract_%E2%80%93_Trich_xuat_du_lieu\" >Extract &#8211; Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/technest.com.vn\/vi\/etl\/#Transform_%E2%80%93_Chuyen_doi_du_lieu\" >Transform &#8211; Chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/technest.com.vn\/vi\/etl\/#Load_%E2%80%93_Tai_du_lieu_vao_he_thong\" >Load &#8211; T\u1ea3i d\u1eef li\u1ec7u v\u00e0o h\u1ec7 th\u1ed1ng<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/technest.com.vn\/vi\/etl\/#Vai_tro_cua_ETL_trong_he_thong_BI\" >Vai tr\u00f2 c\u1ee7a ETL trong h\u1ec7 th\u1ed1ng BI<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/technest.com.vn\/vi\/etl\/#Cac_cong_cu_ETL_pho_bien\" >C\u00e1c c\u00f4ng c\u1ee5 ETL 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-10\" href=\"https:\/\/technest.com.vn\/vi\/etl\/#ETL_vs_ELT_Su_khac_biet_va_khi_nao_dung\" >ETL vs ELT: S\u1ef1 kh\u00e1c bi\u1ec7t v\u00e0 khi n\u00e0o d\u00f9ng<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/technest.com.vn\/vi\/etl\/#ETL_%E2%80%93_Extract_Transform_Load\" >ETL \u2013 Extract, Transform, Load<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/technest.com.vn\/vi\/etl\/#ELT_%E2%80%93_Extract_Load_Transform\" >ELT \u2013 Extract, Load, Transform<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/technest.com.vn\/vi\/etl\/#Thach_thuc_va_cach_giai_quyet_khi_trien_khai_ETL\" >Th\u00e1ch th\u1ee9c v\u00e0 c\u00e1ch gi\u1ea3i quy\u1ebft khi tri\u1ec3n khai ETL<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/technest.com.vn\/vi\/etl\/#Cau_hoi_thuong_gap_ve_ETL_Extract_Transform_Load\" >C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 ETL (Extract Transform Load)<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"ETL_Extract_Transform_Load_la_gi\"><\/span><b>ETL (Extract Transform Load) l\u00e0 g\u00ec?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><b>ETL (Extract Transform Load)<\/b><span style=\"font-weight: 400;\"> l\u00e0 m\u1ed9t quy tr\u00ecnh t\u00edch h\u1ee3p d\u1eef li\u1ec7u g\u1ed3m ba b\u01b0\u1edbc ch\u00ednh: <strong>Tr\u00edch xu\u1ea5t (Extract), Chuy\u1ec3n \u0111\u1ed5i (Transform) v\u00e0 T\u1ea3i (Load)<\/strong>. Quy tr\u00ecnh n\u00e0y cho ph\u00e9p doanh nghi\u1ec7p l\u1ea5y d\u1eef li\u1ec7u t\u1eeb nhi\u1ec1u ngu\u1ed3n kh\u00e1c nhau, x\u1eed l\u00fd ch\u00fang theo c\u00e1c quy t\u1eafc kinh doanh v\u00e0 cu\u1ed1i c\u00f9ng l\u01b0u tr\u1eef v\u00e0o m\u1ed9t kho d\u1eef li\u1ec7u t\u1eadp trung (Data Warehouse).<\/span><\/p>\n<figure id=\"attachment_4265\" aria-describedby=\"caption-attachment-4265\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4265 size-full\" title=\"ETL (Extract Transform Load) l\u00e0 g\u00ec?\" src=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/04\/etl-1.png\" alt=\"ETL (Extract Transform Load) l\u00e0 g\u00ec?\" width=\"600\" height=\"400\" srcset=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/04\/etl-1.png 600w, https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/04\/etl-1-300x200.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-4265\" class=\"wp-caption-text\">ETL (Extract Transform Load) l\u00e0 g\u00ec?<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">Hi\u1ec3u m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, n\u1ebfu b\u1ea1n mu\u1ed1n n\u1ea5u m\u1ed9t m\u00f3n \u0103n ngon t\u1eeb nhi\u1ec1u nguy\u00ean li\u1ec7u \u1edf c\u00e1c ch\u1ee3 kh\u00e1c nhau, ETL ch\u00ednh l\u00e0 qu\u00e1 tr\u00ecnh b\u1ea1n \u0111i mua \u0111\u1ed3 (Extract), s\u01a1 ch\u1ebf v\u00e0 t\u1ea9m \u01b0\u1edbp (Transform), sau \u0111\u00f3 cho v\u00e0o n\u1ed3i n\u1ea5u (Load). K\u1ebft qu\u1ea3 cu\u1ed1i c\u00f9ng l\u00e0 m\u1ed9t &#8220;m\u00f3n \u0103n&#8221; d\u1eef li\u1ec7u s\u1ea1ch s\u1ebd, \u0111\u1ed3ng nh\u1ea5t v\u00e0 s\u1eb5n s\u00e0ng \u0111\u1ec3 ph\u00e2n t\u00edch.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Tai_sao_ETL_quan_trong\"><\/span><b>T\u1ea1i sao ETL quan tr\u1ecdng?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Trong m\u00f4i tr\u01b0\u1eddng kinh doanh hi\u1ec7n \u0111\u1ea1i, d\u1eef li\u1ec7u kh\u00f4ng ch\u1ec9 \u0111\u1ebfn t\u1eeb m\u1ed9t ngu\u1ed3n duy nh\u1ea5t. M\u1ed9t doanh nghi\u1ec7p c\u00f3 th\u1ec3 c\u00f3 d\u1eef li\u1ec7u b\u00e1n h\u00e0ng tr\u00ean CRM, d\u1eef li\u1ec7u t\u00e0i ch\u00ednh trong ERP, d\u1eef li\u1ec7u marketing tr\u00ean Facebook Ads v\u00e0 d\u1eef li\u1ec7u h\u00e0nh vi ng\u01b0\u1eddi d\u00f9ng tr\u00ean website. N\u1ebfu kh\u00f4ng c\u00f3 ETL, c\u00e1c ngu\u1ed3n d\u1eef li\u1ec7u n\u00e0y s\u1ebd t\u1ed3n t\u1ea1i bi\u1ec7t l\u1eadp (Data Silos), khi\u1ebfn nh\u00e0 qu\u1ea3n l\u00fd kh\u00f4ng c\u00f3 c\u00e1i nh\u00ecn to\u00e0n di\u1ec7n.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">ETL \u0111\u00f3ng vai tr\u00f2 &#8220;ng\u01b0\u1eddi k\u1ebft n\u1ed1i&#8221;, gi\u00fap h\u1ee3p nh\u1ea5t c\u00e1c m\u1ea3nh gh\u00e9p r\u1eddi r\u1ea1c th\u00e0nh m\u1ed9t b\u1ee9c tranh t\u1ed5ng th\u1ec3. N\u00f3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u1ecdi quy\u1ebft \u0111\u1ecbnh kinh doanh \u0111\u1ec1u d\u1ef1a tr\u00ean d\u1eef li\u1ec7u ch\u00ednh x\u00e1c, k\u1ecbp th\u1eddi v\u00e0 c\u00f3 t\u00ednh h\u1ec7 th\u1ed1ng. Kh\u00f4ng c\u00f3 ETL, vi\u1ec7c ph\u00e2n t\u00edch d\u1eef li\u1ec7u l\u1edbn (Big Data) g\u1ea7n nh\u01b0 l\u00e0 \u0111i\u1ec1u kh\u00f4ng th\u1ec3.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Loi_ich_cua_ETL\"><\/span><b>L\u1ee3i \u00edch c\u1ee7a ETL<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Vi\u1ec7c tri\u1ec3n khai quy tr\u00ecnh ETL b\u00e0i b\u1ea3n mang l\u1ea1i nh\u1eefng l\u1ee3i \u00edch v\u01b0\u1ee3t tr\u1ed9i cho doanh nghi\u1ec7p, t\u1eeb vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a v\u1eadn h\u00e0nh \u0111\u1ebfn n\u00e2ng cao n\u0103ng l\u1ef1c c\u1ea1nh tranh:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>N\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng d\u1eef li\u1ec7u:<\/b><span style=\"font-weight: 400;\"> ETL gi\u00fap lo\u1ea1i b\u1ecf c\u00e1c d\u1eef li\u1ec7u tr\u00f9ng l\u1eb7p, sai s\u00f3t ho\u1eb7c kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7 trong qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 ngu\u1ed3n l\u1ef1c:<\/b><span style=\"font-weight: 400;\"> Thay v\u00ec nh\u00e2n vi\u00ean ph\u1ea3i t\u1ed5ng h\u1ee3p th\u1ee7 c\u00f4ng b\u1eb1ng Excel, ETL t\u1ef1 \u0111\u1ed9ng h\u00f3a to\u00e0n b\u1ed9 lu\u1ed3ng d\u1eef li\u1ec7u.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>H\u1ed7 tr\u1ee3 ra quy\u1ebft \u0111\u1ecbnh ch\u00ednh x\u00e1c:<\/b><span style=\"font-weight: 400;\"> D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch v\u00e0 c\u1eadp nh\u1eadt li\u00ean t\u1ee5c gi\u00fap c\u00e1c c\u1ea5p l\u00e3nh \u0111\u1ea1o n\u1eafm b\u1eaft th\u1ecb tr\u01b0\u1eddng nhanh ch\u00f3ng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>L\u01b0u tr\u1eef d\u1eef li\u1ec7u l\u1ecbch s\u1eed:<\/b><span style=\"font-weight: 400;\"> ETL cho ph\u00e9p theo d\u00f5i s\u1ef1 thay \u0111\u1ed5i c\u1ee7a d\u1eef li\u1ec7u theo th\u1eddi gian, h\u1ed7 tr\u1ee3 vi\u1ec7c d\u1ef1 b\u00e1o xu h\u01b0\u1edbng t\u01b0\u01a1ng lai.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>T\u0103ng t\u00ednh b\u1ea3o m\u1eadt:<\/b><span style=\"font-weight: 400;\"> Quy tr\u00ecnh ETL c\u00f3 th\u1ec3 m\u00e3 h\u00f3a ho\u1eb7c \u1ea9n danh c\u00e1c d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m tr\u01b0\u1edbc khi \u0111\u01b0a v\u00e0o kho l\u01b0u tr\u1eef.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Ba_giai_doan_chinh_trong_ETL\"><\/span><b>Ba giai \u0111o\u1ea1n ch\u00ednh trong ETL<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 hi\u1ec3u s\u00e2u v\u1ec1 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng, ch\u00fang ta c\u1ea7n b\u00f3c t\u00e1ch chi ti\u1ebft ba giai \u0111o\u1ea1n c\u1ea5u th\u00e0nh n\u00ean thu\u1eadt ng\u1eef <\/span><b>ETL (Extract Transform Load)<\/b><span style=\"font-weight: 400;\">. M\u1ed7i giai \u0111o\u1ea1n \u0111\u00f3ng m\u1ed9t vai tr\u00f2 then ch\u1ed1t v\u00e0 kh\u00f4ng th\u1ec3 t\u00e1ch r\u1eddi.<\/span><\/p>\n<figure id=\"attachment_4266\" aria-describedby=\"caption-attachment-4266\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4266 size-full\" title=\"Ba giai \u0111o\u1ea1n ch\u00ednh trong ETL\" src=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/04\/etl-2.png\" alt=\"Ba giai \u0111o\u1ea1n ch\u00ednh trong ETL\" width=\"600\" height=\"400\" srcset=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/04\/etl-2.png 600w, https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/04\/etl-2-300x200.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-4266\" class=\"wp-caption-text\">Ba giai \u0111o\u1ea1n ch\u00ednh trong ETL<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Extract_%E2%80%93_Trich_xuat_du_lieu\"><\/span><b>Extract &#8211; Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u0110\u00e2y l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean v\u00e0 quan tr\u1ecdng nh\u1ea5t. D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c thu th\u1eadp t\u1eeb nhi\u1ec1u ngu\u1ed3n kh\u00e1c nhau nh\u01b0 c\u01a1 s\u1edf d\u1eef li\u1ec7u (SQL, NoSQL), t\u1ec7p tin ph\u1eb3ng (CSV, Excel, XML, JSON), c\u00e1c API \u1ee9ng d\u1ee5ng ho\u1eb7c th\u1eadm ch\u00ed l\u00e0 d\u1eef li\u1ec7u t\u1eeb c\u00e1c thi\u1ebft b\u1ecb IoT. M\u1ee5c ti\u00eau c\u1ee7a giai \u0111o\u1ea1n n\u00e0y l\u00e0 l\u1ea5y \u0111\u01b0\u1ee3c d\u1eef li\u1ec7u th\u00f4 m\u00e0 kh\u00f4ng l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng ngu\u1ed3n.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Transform_%E2%80%93_Chuyen_doi_du_lieu\"><\/span><b>Transform &#8211; Chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Sau khi tr\u00edch xu\u1ea5t, d\u1eef li\u1ec7u th\u00f4 th\u01b0\u1eddng r\u1ea5t &#8220;l\u1ed9n x\u1ed9n&#8221;. Giai \u0111o\u1ea1n Transform s\u1ebd th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c nh\u01b0: \u0111\u1ecbnh d\u1ea1ng l\u1ea1i ng\u00e0y th\u00e1ng, l\u00e0m s\u1ea1ch d\u1eef li\u1ec7u (x\u00f3a d\u00f2ng tr\u1ed1ng), ki\u1ec3m tra t\u00ednh logic, k\u1ebft h\u1ee3p (join) c\u00e1c b\u1ea3ng d\u1eef li\u1ec7u l\u1ea1i v\u1edbi nhau v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh to\u00e1n c\u1ea7n thi\u1ebft. \u0110\u00e2y l\u00e0 giai \u0111o\u1ea1n &#8220;v\u00e0ng&#8221; \u0111\u1ec3 \u00e1p d\u1ee5ng c\u00e1c quy t\u1eafc nghi\u1ec7p v\u1ee5 gi\u00fap d\u1eef li\u1ec7u tr\u1edf n\u00ean c\u00f3 ngh\u0129a.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Load_%E2%80%93_Tai_du_lieu_vao_he_thong\"><\/span><b>Load &#8211; T\u1ea3i d\u1eef li\u1ec7u v\u00e0o h\u1ec7 th\u1ed1ng<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Cu\u1ed1i c\u00f9ng, d\u1eef li\u1ec7u \u0111\u00e3 \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch v\u00e0 chuy\u1ec3n \u0111\u1ed5i s\u1ebd \u0111\u01b0\u1ee3c \u0111\u1ea9y v\u00e0o h\u1ec7 th\u1ed1ng \u0111\u00edch, th\u01b0\u1eddng l\u00e0 m\u1ed9t Data Warehouse ho\u1eb7c Data Lake. Qu\u00e1 tr\u00ecnh t\u1ea3i c\u00f3 th\u1ec3 di\u1ec5n ra theo ki\u1ec3u &#8220;Full Load&#8221; (t\u1ea3i m\u1edbi ho\u00e0n to\u00e0n) ho\u1eb7c &#8220;Incremental Load&#8221; (ch\u1ec9 c\u1eadp nh\u1eadt nh\u1eefng thay \u0111\u1ed5i m\u1edbi nh\u1ea5t). T\u1ed1c \u0111\u1ed9 v\u00e0 \u0111\u1ed9 tin c\u1eady \u1edf b\u01b0\u1edbc n\u00e0y quy\u1ebft \u0111\u1ecbnh t\u00ednh s\u1eb5n s\u00e0ng c\u1ee7a d\u1eef li\u1ec7u cho ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Vai_tro_cua_ETL_trong_he_thong_BI\"><\/span><b>Vai tr\u00f2 c\u1ee7a ETL trong h\u1ec7 th\u1ed1ng BI<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">H\u1ec7 th\u1ed1ng Business Intelligence (BI) kh\u00f4ng th\u1ec3 ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 n\u1ebfu thi\u1ebfu &#8220;nhi\u00ean li\u1ec7u&#8221; \u0111\u1ea7u v\u00e0o l\u00e0 d\u1eef li\u1ec7u s\u1ea1ch. ETL \u0111\u00f3ng vai tr\u00f2 l\u00e0 l\u1edbp n\u1ec1n t\u1ea3ng v\u1eefng ch\u1eafc nh\u1ea5t trong ki\u1ebfn tr\u00fac BI.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">N\u00f3 \u0111\u00f3ng vai tr\u00f2 l\u00e0 b\u1ed9 l\u1ecdc gi\u00fap l\u1ecdc b\u1ecf c\u00e1c nhi\u1ec5u lo\u1ea1n th\u00f4ng tin. Nh\u1edd c\u00f3 ETL, c\u00e1c c\u00f4ng c\u1ee5 hi\u1ec3n th\u1ecb d\u1eef li\u1ec7u (Data Visualization) nh\u01b0 Power BI hay Tableau m\u1edbi c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c bi\u1ec3u \u0111\u1ed3 ch\u00ednh x\u00e1c. N\u1ebfu v\u00ed BI l\u00e0 m\u1ed9t b\u00e1o c\u00e1o t\u1ed5ng k\u1ebft n\u0103m, th\u00ec ETL ch\u00ednh l\u00e0 qu\u00e1 tr\u00ecnh ghi ch\u00e9p v\u00e0 ki\u1ec3m to\u00e1n h\u00f3a \u0111\u01a1n ch\u1ee9ng t\u1eeb su\u1ed1t c\u1ea3 n\u0103m \u0111\u00f3.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cac_cong_cu_ETL_pho_bien\"><\/span><b>C\u00e1c c\u00f4ng c\u1ee5 ETL ph\u1ed5 bi\u1ebfn<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Hi\u1ec7n nay tr\u00ean th\u1ecb tr\u01b0\u1eddng c\u00f3 r\u1ea5t nhi\u1ec1u c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3 quy tr\u00ecnh <\/span><b>ETL (Extract Transform Load)<\/b><span style=\"font-weight: 400;\">, t\u1eeb c\u00e1c gi\u1ea3i ph\u00e1p doanh nghi\u1ec7p \u0111\u1eaft ti\u1ec1n \u0111\u1ebfn c\u00e1c c\u00f4ng c\u1ee5 m\u00e3 ngu\u1ed3n m\u1edf linh ho\u1ea1t. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng c\u00e1i t\u00ean h\u00e0ng \u0111\u1ea7u b\u1ea1n n\u00ean bi\u1ebft:<\/span><\/p>\n<figure id=\"attachment_4267\" aria-describedby=\"caption-attachment-4267\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4267 size-full\" title=\"C\u00e1c c\u00f4ng c\u1ee5 ETL ph\u1ed5 bi\u1ebfn\" src=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/04\/etl-3.png\" alt=\"C\u00e1c c\u00f4ng c\u1ee5 ETL ph\u1ed5 bi\u1ebfn\" width=\"600\" height=\"400\" srcset=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/04\/etl-3.png 600w, https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/04\/etl-3-300x200.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-4267\" class=\"wp-caption-text\">C\u00e1c c\u00f4ng c\u1ee5 ETL ph\u1ed5 bi\u1ebfn<\/figcaption><\/figure>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Informatica PowerCenter: <\/b><span style=\"font-weight: 400;\">M\u1ed9t &#8220;\u00f4ng l\u1edbn&#8221; trong ng\u00e0nh ETL d\u00e0nh cho c\u00e1c t\u1eadp \u0111o\u00e0n \u0111a qu\u1ed1c gia. N\u00f3 n\u1ed5i ti\u1ebfng v\u1edbi kh\u1ea3 n\u0103ng x\u1eed l\u00fd kh\u1ed1i l\u01b0\u1ee3ng d\u1eef li\u1ec7u kh\u1ed5ng l\u1ed3, t\u00ednh b\u1ea3o m\u1eadt c\u1ef1c cao v\u00e0 h\u1ec7 sinh th\u00e1i h\u1ed7 tr\u1ee3 m\u1ea1nh m\u1ebd.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>IBM DataStage: <\/b><span style=\"font-weight: 400;\">N\u1eb1m trong b\u1ed9 gi\u1ea3i ph\u00e1p InfoSphere c\u1ee7a IBM, DataStage h\u1ed7 tr\u1ee3 x\u1eed l\u00fd song song, gi\u00fap t\u1ed1i \u01b0u h\u00f3a th\u1eddi gian ch\u1ea1y c\u00e1c ti\u1ebfn tr\u00ecnh ETL ph\u1ee9c t\u1ea1p trong m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p l\u1edbn.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Microsoft SSIS: <\/b><span style=\"font-weight: 400;\">SQL Server Integration Services (SSIS) l\u00e0 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u cho nh\u1eefng \u0111\u01a1n v\u1ecb \u0111ang s\u1eed d\u1ee5ng h\u1ec7 sinh th\u00e1i c\u1ee7a Microsoft. N\u00f3 t\u00edch h\u1ee3p s\u00e2u v\u1edbi SQL Server v\u00e0 c\u00f3 giao di\u1ec7n k\u00e9o th\u1ea3 tr\u1ef1c quan.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>AWS Glue:<\/b><span style=\"font-weight: 400;\"> M\u1ed9t d\u1ecbch v\u1ee5 ETL kh\u00f4ng m\u00e1y ch\u1ee7 (Serverless) c\u1ee7a Amazon. <strong><a title=\"AWS Glue\" href=\"https:\/\/en.wikipedia.org\/wiki\/AWS_Glue\" target=\"_blank\" rel=\"nofollow noopener\">AWS Glue<\/a><\/strong> t\u1ef1 \u0111\u1ed9ng t\u00ecm ki\u1ebfm v\u00e0 ph\u00e2n lo\u1ea1i d\u1eef li\u1ec7u, c\u1ef1c k\u1ef3 ph\u00f9 h\u1ee3p cho c\u00e1c doanh nghi\u1ec7p \u0111ang v\u1eadn h\u00e0nh tr\u00ean n\u1ec1n t\u1ea3ng \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y AWS.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Google Cloud Dataflow: <\/b><span style=\"font-weight: 400;\">D\u1ecbch v\u1ee5 c\u1ee7a Google gi\u00fap x\u1eed l\u00fd d\u1eef li\u1ec7u c\u1ea3 theo l\u00f4 (batch) v\u00e0 theo d\u00f2ng (stream). N\u00f3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean Apache Beam, mang l\u1ea1i kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng t\u1ef1 \u0111\u1ed9ng v\u00e0 linh ho\u1ea1t.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Azure Data Factory: <\/b><span style=\"font-weight: 400;\">T\u01b0\u01a1ng t\u1ef1 AWS Glue, \u0111\u00e2y l\u00e0 d\u1ecbch v\u1ee5 t\u00edch h\u1ee3p d\u1eef li\u1ec7u tr\u00ean m\u00e2y c\u1ee7a Microsoft. N\u00f3 cho ph\u00e9p t\u1ea1o ra c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u (pipelines) ph\u1ee9c t\u1ea1p k\u1ebft n\u1ed1i gi\u1eefa on-premise v\u00e0 cloud.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Apache NiFi: <\/b><span style=\"font-weight: 400;\">M\u1ed9t c\u00f4ng c\u1ee5 m\u00e3 ngu\u1ed3n m\u1edf m\u1ea1nh m\u1ebd chuy\u00ean v\u1ec1 x\u1eed l\u00fd v\u00e0 ph\u00e2n ph\u1ed1i d\u1eef li\u1ec7u theo th\u1eddi gian th\u1ef1c. NiFi c\u00f3 giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng d\u1ef1a tr\u00ean tr\u00ecnh duy\u1ec7t r\u1ea5t d\u1ec5 s\u1eed d\u1ee5ng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Talend Open Studio: <\/b><span style=\"font-weight: 400;\">Talend cung c\u1ea5p phi\u00ean b\u1ea3n m\u00e3 ngu\u1ed3n m\u1edf m\u1ea1nh m\u1ebd, cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng thi\u1ebft k\u1ebf c\u00e1c c\u00f4ng vi\u1ec7c ETL m\u1ed9t c\u00e1ch nhanh ch\u00f3ng v\u1edbi h\u00e0ng tr\u0103m th\u00e0nh ph\u1ea7n k\u1ebft n\u1ed1i c\u00f3 s\u1eb5n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Python v\u1edbi Pandas ho\u1eb7c Spark: <\/b><span style=\"font-weight: 400;\">\u0110\u1ed1i v\u1edbi c\u00e1c Data Engineer th\u00edch l\u1eadp tr\u00ecnh, vi\u1ec7c s\u1eed d\u1ee5ng Python c\u00f9ng th\u01b0 vi\u1ec7n Pandas (cho d\u1eef li\u1ec7u nh\u1ecf) ho\u1eb7c Apache Spark (cho Big Data) mang l\u1ea1i s\u1ef1 linh ho\u1ea1t t\u1ed1i \u0111a m\u00e0 kh\u00f4ng b\u1ecb g\u00f2 b\u00f3 b\u1edfi giao di\u1ec7n c\u00f4ng c\u1ee5.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"ETL_vs_ELT_Su_khac_biet_va_khi_nao_dung\"><\/span><b>ETL vs ELT: S\u1ef1 kh\u00e1c bi\u1ec7t v\u00e0 khi n\u00e0o d\u00f9ng<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00f4ng ngh\u1ec7 Cloud, m\u1ed9t kh\u00e1i ni\u1ec7m m\u1edbi l\u00e0 ELT \u0111\u00e3 ra \u0111\u1eddi v\u00e0 th\u01b0\u1eddng b\u1ecb nh\u1ea7m l\u1eabn v\u1edbi ETL. Vi\u1ec7c hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y gi\u00fap b\u1ea1n ch\u1ecdn \u0111\u00fang ki\u1ebfn tr\u00fac cho h\u1ec7 th\u1ed1ng c\u1ee7a m\u00ecnh.<\/span><\/p>\n<figure id=\"attachment_4268\" aria-describedby=\"caption-attachment-4268\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4268 size-full\" title=\"ETL vs ELT: S\u1ef1 kh\u00e1c bi\u1ec7t v\u00e0 khi n\u00e0o d\u00f9ng\" src=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/04\/etl-4.png\" alt=\"ETL vs ELT: S\u1ef1 kh\u00e1c bi\u1ec7t v\u00e0 khi n\u00e0o d\u00f9ng\" width=\"600\" height=\"400\" srcset=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/04\/etl-4.png 600w, https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/04\/etl-4-300x200.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-4268\" class=\"wp-caption-text\">ETL vs ELT: S\u1ef1 kh\u00e1c bi\u1ec7t v\u00e0 khi n\u00e0o d\u00f9ng<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"ETL_%E2%80%93_Extract_Transform_Load\"><\/span><b>ETL \u2013 Extract, Transform, Load<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Quy tr\u00ecnh truy\u1ec1n th\u1ed1ng, n\u01a1i d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i tr\u00ean m\u1ed9t m\u00e1y ch\u1ee7 trung gian tr\u01b0\u1edbc khi t\u1ea3i v\u00e0o kho. Ph\u00f9 h\u1ee3p khi c\u1ea7n b\u1ea3o m\u1eadt cao (ch\u1eb7n d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m tr\u01b0\u1edbc khi l\u01b0u) ho\u1eb7c khi h\u1ec7 th\u1ed1ng \u0111\u00edch c\u00f3 kh\u1ea3 n\u0103ng t\u00ednh to\u00e1n h\u1ea1n ch\u1ebf.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"ELT_%E2%80%93_Extract_Load_Transform\"><\/span><b>ELT \u2013 Extract, Load, Transform<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">D\u1eef li\u1ec7u th\u00f4 \u0111\u01b0\u1ee3c t\u1ea3i tr\u1ef1c ti\u1ebfp v\u00e0o kho d\u1eef li\u1ec7u (nh\u01b0 BigQuery, Snowflake) sau \u0111\u00f3 m\u1edbi d\u00f9ng s\u1ee9c m\u1ea1nh c\u1ee7a kho d\u1eef li\u1ec7u \u0111\u00f3 \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i. ELT nhanh h\u01a1n, linh ho\u1ea1t h\u01a1n v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng Cloud hi\u1ec7n \u0111\u1ea1i c\u00f3 kh\u1ea3 n\u0103ng x\u1eed l\u00fd song song m\u1ea1nh m\u1ebd.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Thach_thuc_va_cach_giai_quyet_khi_trien_khai_ETL\"><\/span><b>Th\u00e1ch th\u1ee9c v\u00e0 c\u00e1ch gi\u1ea3i quy\u1ebft khi tri\u1ec3n khai ETL<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">M\u1eb7c d\u00f9 mang l\u1ea1i l\u1ee3i \u00edch l\u1edbn, vi\u1ec7c tri\u1ec3n khai <\/span><b>ETL (Extract Transform Load)<\/b><span style=\"font-weight: 400;\"> kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng tr\u1ea3i \u0111\u1ea7y hoa h\u1ed3ng. C\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng \u0111\u1ed1i m\u1eb7t v\u1edbi nh\u1eefng v\u1ea5n \u0111\u1ec1 h\u00f3c b\u00faa sau:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Thay \u0111\u1ed5i c\u1ea5u tr\u00fac ngu\u1ed3n (Schema Drift):<\/b><span style=\"font-weight: 400;\"> Khi ngu\u1ed3n d\u1eef li\u1ec7u thay \u0111\u1ed5i (th\u00eam\/b\u1edbt c\u1ed9t), quy tr\u00ecnh ETL d\u1ec5 b\u1ecb l\u1ed7i. <\/span><i><span style=\"font-weight: 400;\">C\u00e1ch gi\u1ea3i quy\u1ebft:<\/span><\/i><span style=\"font-weight: 400;\"> S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 c\u00f3 kh\u1ea3 n\u0103ng t\u1ef1 \u0111\u1ed9ng ph\u00e1t hi\u1ec7n thay \u0111\u1ed5i ho\u1eb7c thi\u1ebft k\u1ebf pipeline linh ho\u1ea1t.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Hi\u1ec7u su\u1ea5t k\u00e9m:<\/b><span style=\"font-weight: 400;\"> Khi d\u1eef li\u1ec7u qu\u00e1 l\u1edbn, ETL c\u00f3 th\u1ec3 ch\u1ea1y m\u1ea5t nhi\u1ec1u gi\u1edd. <\/span><i><span style=\"font-weight: 400;\">C\u00e1ch gi\u1ea3i quy\u1ebft:<\/span><\/i><span style=\"font-weight: 400;\"> S\u1eed d\u1ee5ng x\u1eed l\u00fd song song (Parallel Processing) ho\u1eb7c chuy\u1ec3n sang m\u00f4 h\u00ecnh Incremental Load.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Ch\u1ea5t l\u01b0\u1ee3ng d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o th\u1ea5p:<\/b><span style=\"font-weight: 400;\"> &#8220;R\u00e1c v\u00e0o th\u00ec r\u00e1c ra&#8221;. <\/span><i><span style=\"font-weight: 400;\">C\u00e1ch gi\u1ea3i quy\u1ebft:<\/span><\/i><span style=\"font-weight: 400;\"> Thi\u1ebft l\u1eadp c\u00e1c quy t\u1eafc ki\u1ec3m tra (Validation rules) nghi\u00eam ng\u1eb7t ngay t\u1ea1i b\u01b0\u1edbc Extract.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Cau_hoi_thuong_gap_ve_ETL_Extract_Transform_Load\"><\/span><b>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 ETL (Extract Transform Load)<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 k\u1ebft th\u00fac b\u00e0i vi\u1ebft, h\u00e3y c\u00f9ng \u0111i\u1ec3m l\u1ea1i m\u1ed9t s\u1ed1 th\u1eafc m\u1eafc ph\u1ed5 bi\u1ebfn m\u00e0 nh\u1eefng ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u th\u01b0\u1eddng g\u1eb7p ph\u1ea3i:<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>ETL c\u00f3 ph\u1ea3i ch\u1ec9 d\u00e0nh cho d\u1eef li\u1ec7u l\u1edbn kh\u00f4ng?<\/b><b><br \/>\n<\/b><span style=\"font-weight: 400;\">Kh\u00f4ng, ngay c\u1ea3 c\u00e1c doanh nghi\u1ec7p nh\u1ecf v\u1edbi v\u00e0i t\u1ec7p Excel c\u0169ng c\u00f3 th\u1ec3 d\u00f9ng ETL \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng h\u00f3a vi\u1ec7c b\u00e1o c\u00e1o.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>H\u1ecdc ETL c\u00f3 c\u1ea7n gi\u1ecfi l\u1eadp tr\u00ecnh kh\u00f4ng?<\/b><b><br \/>\n<\/b><span style=\"font-weight: 400;\">N\u1ebfu d\u00f9ng c\u00e1c c\u00f4ng c\u1ee5 k\u00e9o th\u1ea3 nh\u01b0 SSIS hay Talend, b\u1ea1n ch\u1ec9 c\u1ea7n t\u01b0 duy logic t\u1ed1t. Tuy nhi\u00ean, bi\u1ebft SQL l\u00e0 \u0111i\u1ec1u b\u1eaft bu\u1ed9c.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>T\u01b0\u01a1ng lai c\u1ee7a ETL l\u00e0 g\u00ec?<\/b><b><br \/>\n<\/b><span style=\"font-weight: 400;\">ETL \u0111ang chuy\u1ec3n d\u1ea7n sang h\u01b0\u1edbng Real-time (t\u1ee9c th\u1eddi) v\u00e0 t\u00edch h\u1ee3p AI \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng h\u00f3a vi\u1ec7c l\u00e0m s\u1ea1ch d\u1eef li\u1ec7u.<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Hy v\u1ecdng b\u00e0i vi\u1ebft n\u00e0y \u0111\u00e3 gi\u00fap b\u1ea1n c\u00f3 c\u00e1i nh\u00ecn to\u00e0n di\u1ec7n v\u00e0 chi ti\u1ebft nh\u1ea5t v\u1ec1 quy tr\u00ecnh <\/span><b>ETL (Extract Transform Load)<\/b><span style=\"font-weight: 400;\">. \u0110\u1ea7u t\u01b0 v\u00e0o ETL ch\u00ednh l\u00e0 \u0111\u1ea7u t\u01b0 v\u00e0o t\u00e0i s\u1ea3n qu\u00fd gi\u00e1 nh\u1ea5t c\u1ee7a doanh nghi\u1ec7p: S\u1ef1 th\u1eadt t\u1eeb d\u1eef li\u1ec7u.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trong k\u1ef7 nguy\u00ean s\u1ed1, d\u1eef li\u1ec7u th\u00f4 th\u01b0\u1eddng n\u1eb1m r\u1ea3i r\u00e1c \u1edf nhi\u1ec1u n\u01a1i v\u00e0 kh\u00f4ng c\u00f3 c\u1ea5u tr\u00fac th\u1ed1ng nh\u1ea5t. \u0110\u1ec3 bi\u1ebfn nh\u1eefng con s\u1ed1 v\u00f4 h\u1ed3n th\u00e0nh th\u00f4ng tin c\u00f3 gi\u00e1 tr\u1ecb, ch\u00fang ta c\u1ea7n m\u1ed9t quy tr\u00ecnh x\u1eed l\u00fd chuy\u00ean nghi\u1ec7p. \u0110\u00f3 ch\u00ednh l\u00e0 l\u00fac ETL (Extract Transform Load) xu\u1ea5t hi\u1ec7n nh\u01b0<\/p>\n","protected":false},"author":1,"featured_media":4271,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[84],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/posts\/4264"}],"collection":[{"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/comments?post=4264"}],"version-history":[{"count":3,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/posts\/4264\/revisions"}],"predecessor-version":[{"id":4274,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/posts\/4264\/revisions\/4274"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/media\/4271"}],"wp:attachment":[{"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/media?parent=4264"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/categories?post=4264"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/tags?post=4264"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}