{"id":29644,"date":"2025-05-29T14:18:47","date_gmt":"2025-05-29T07:18:47","guid":{"rendered":"https:\/\/digi-texx.com\/cong-nghe\/trich-xuat-du-lieu-la-gi-dinh-nghia-cach-thuc-hoat-dong-va-vi-du\/"},"modified":"2025-06-13T16:00:57","modified_gmt":"2025-06-13T09:00:57","slug":"trich-xuat-du-lieu-la-gi-dinh-nghia-cach-thuc-hoat-dong-va-vi-du","status":"publish","type":"post","link":"https:\/\/digi-texx.com\/vi\/techblog-vi\/trich-xuat-du-lieu-la-gi-dinh-nghia-cach-thuc-hoat-dong-va-vi-du\/","title":{"rendered":"Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u l\u00e0 g\u00ec? \u0110\u1ecbnh ngh\u0129a, c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng v\u00e0 v\u00ed d\u1ee5"},"content":{"rendered":"\n<p>Kh\u1ea3 n\u0103ng tr\u00edch xu\u1ea5t v\u00e0 khai th\u00e1c th\u00f4ng tin hi\u1ec7u qu\u1ea3 l\u00e0 t\u1ed1i quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c t\u1ed5 ch\u1ee9c trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau. <strong>Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u<\/strong> \u2013 qu\u00e1 tr\u00ecnh truy xu\u1ea5t d\u1eef li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac ho\u1eb7c kh\u00f4ng c\u00f3 c\u1ea5u tr\u00fac t\u1eeb nhi\u1ec1u ngu\u1ed3n kh\u00e1c nhau \u2013 \u0111\u00f3ng vai tr\u00f2 l\u00e0 n\u1ec1n t\u1ea3ng cho vi\u1ec7c ra quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t, l\u1eadp k\u1ebf ho\u1ea1ch chi\u1ebfn l\u01b0\u1ee3c v\u00e0 ho\u1ea1t \u0111\u1ed9ng xu\u1ea5t s\u1eafc. Khi c\u00e1c doanh nghi\u1ec7p ng\u00e0y c\u00e0ng d\u1ef1a v\u00e0o d\u1eef li\u1ec7u \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c l\u1ee3i th\u1ebf c\u1ea1nh tranh, vi\u1ec7c hi\u1ec3u c\u00e2u tr\u1ea3 l\u1eddi cho c\u00e2u h\u1ecfi &#8220;<strong>Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u l\u00e0 g\u00ec?<\/strong>&#8221; v\u00e0 &#8220;<strong>N\u00f3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/strong>&#8221; tr\u1edf n\u00ean c\u1ea7n thi\u1ebft \u0111\u1ed1i v\u1edbi c\u00e1c chuy\u00ean gia v\u00e0 t\u1ed5 ch\u1ee9c. <\/p>\n\n<p>T\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c nh\u1ea5n m\u1ea1nh b\u1edfi s\u1ef1 t\u0103ng tr\u01b0\u1edfng m\u1ea1nh m\u1ebd c\u1ee7a th\u1ecb tr\u01b0\u1eddng. (1) Th\u1ecb tr\u01b0\u1eddng tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u to\u00e0n c\u1ea7u \u0111\u01b0\u1ee3c \u0111\u1ecbnh gi\u00e1 kho\u1ea3ng 2,14 t\u1ef7 \u0111\u00f4 la v\u00e0o n\u0103m 2019 v\u00e0 d\u1ef1 ki\u1ebfn \u200b\u200bs\u1ebd \u0111\u1ea1t kho\u1ea3ng 4,90 t\u1ef7 \u0111\u00f4 la v\u00e0o n\u0103m 2027, t\u0103ng tr\u01b0\u1edfng v\u1edbi t\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng k\u00e9p h\u00e0ng n\u0103m (CAGR) l\u00e0 11,8% trong giai \u0111o\u1ea1n d\u1ef1 b\u00e1o.<br\/>S\u1ef1 m\u1edf r\u1ed9ng n\u00e0y ph\u1ea3n \u00e1nh nhu c\u1ea7u ng\u00e0y c\u00e0ng t\u0103ng \u0111\u1ed1i v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p qu\u1ea3n l\u00fd d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3 v\u00e0 vai tr\u00f2 quan tr\u1ecdng c\u1ee7a vi\u1ec7c tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng kinh doanh hi\u1ec7n \u0111\u1ea1i. <\/p>\n<style>.kb-image28840_65b0c0-84 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image28840_65b0c0-84\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/01.-What-is-Data-Extraction-Definition-How-It-Works-Examples-1024x576.jpg\" alt=\"\u0110\u1ecbnh ngh\u0129a tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u l\u00e0 g\u00ec, c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng v\u00e0 v\u00ed d\u1ee5 3\" class=\"kb-img wp-image-28847\" title=\"\" srcset=\"https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/01.-What-is-Data-Extraction-Definition-How-It-Works-Examples-1024x576.jpg 1024w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/01.-What-is-Data-Extraction-Definition-How-It-Works-Examples-300x169.jpg 300w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/01.-What-is-Data-Extraction-Definition-How-It-Works-Examples-768x432.jpg 768w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/01.-What-is-Data-Extraction-Definition-How-It-Works-Examples-1536x864.jpg 1536w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/01.-What-is-Data-Extraction-Definition-How-It-Works-Examples.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Trich_xuat_du_lieu_la_gi\"><\/span>Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u l\u00e0 qu\u00e1 tr\u00ecnh l\u1ea5y d\u1eef li\u1ec7u t\u1eeb nhi\u1ec1u ngu\u1ed3n kh\u00e1c nhau (t\u00e0i li\u1ec7u v\u1eadt l\u00fd, PDF, h\u1ed9p th\u01b0, blog tr\u1ef1c tuy\u1ebfn, b\u00e0i \u0111\u0103ng tr\u00ean m\u1ea1ng x\u00e3 h\u1ed9i, v.v.) \u0111\u1ec3 x\u1eed l\u00fd ho\u1eb7c l\u01b0u tr\u1eef th\u00eam. \u0110\u00e2y l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean trong qu\u00e1 tr\u00ecnh t\u00edch h\u1ee3p d\u1eef li\u1ec7u, \u0111\u1eb7t n\u1ec1n t\u1ea3ng cho c\u00e1c giai \u0111o\u1ea1n chuy\u1ec3n \u0111\u1ed5i v\u00e0 t\u1ea3i d\u1eef li\u1ec7u ti\u1ebfp theo. Hi\u1ec3u &#8220;<strong>Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u l\u00e0 g\u00ec?<\/strong>&#8221; v\u00e0 c\u00e1ch n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi v\u00f2ng \u0111\u1eddi d\u1eef li\u1ec7u r\u1ed9ng h\u01a1n l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 t\u1eadn d\u1ee5ng h\u1ebft ti\u1ec1m n\u0103ng c\u1ee7a n\u00f3 trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf.   <\/p>\n\n<p>Quy tr\u00ecnh n\u00e0y l\u00e0 m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a kho d\u1eef li\u1ec7u, tr\u00ed tu\u1ec7 kinh doanh v\u00e0 c\u00e1c s\u00e1ng ki\u1ebfn \u200b\u200bph\u00e2n t\u00edch, cho ph\u00e9p c\u00e1c t\u1ed5 ch\u1ee9c h\u1ee3p nh\u1ea5t d\u1eef li\u1ec7u t\u1eeb nhi\u1ec1u ngu\u1ed3n kh\u00e1c nhau th\u00e0nh m\u1ed9t kho l\u01b0u tr\u1eef th\u1ed1ng nh\u1ea5t \u0111\u1ec3 ph\u00e2n t\u00edch to\u00e0n di\u1ec7n.<\/p>\n\n<p>T\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c nh\u1ea5n m\u1ea1nh b\u1edfi vai tr\u00f2 trung t\u00e2m c\u1ee7a n\u00f3 trong <strong>quy tr\u00ecnh Tr\u00edch xu\u1ea5t, Chuy\u1ec3n \u0111\u1ed5i, T\u1ea3i (ETL)<\/strong>, m\u1ed9t th\u00e0nh ph\u1ea7n quan tr\u1ecdng c\u1ee7a chi\u1ebfn l\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0 kho d\u1eef li\u1ec7u. ETL t\u1ea1o \u0111i\u1ec1u ki\u1ec7n h\u1ee3p nh\u1ea5t d\u1eef li\u1ec7u t\u1eeb nhi\u1ec1u ngu\u1ed3n kh\u00e1c nhau th\u00e0nh m\u1ed9t kho l\u01b0u tr\u1eef t\u1eadp trung, cho ph\u00e9p c\u00e1c t\u1ed5 ch\u1ee9c th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e2n t\u00edch to\u00e0n di\u1ec7n v\u00e0 \u0111\u01b0a ra nh\u1eefng hi\u1ec3u bi\u1ebft c\u00f3 th\u1ec3 h\u00e0nh \u0111\u1ed9ng \u0111\u01b0\u1ee3c. <\/p>\n\n<p><strong>C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u:<\/strong><\/p>\n\n<ol class=\"wp-block-list\">\n<li><strong>X\u00e1c \u0111\u1ecbnh ngu\u1ed3n d\u1eef li\u1ec7u:<\/strong> D\u1eef li\u1ec7u c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb nhi\u1ec1u ngu\u1ed3n, bao g\u1ed3m c\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7, b\u1ea3ng t\u00ednh, trang web, API v\u00e0 t\u00e0i li\u1ec7u phi c\u1ea5u tr\u00fac. Vi\u1ec7c nh\u1eadn bi\u1ebft v\u00e0 l\u1eadp danh m\u1ee5c c\u00e1c ngu\u1ed3n n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 tr\u00edch xu\u1ea5t hi\u1ec7u qu\u1ea3. <br\/><\/li>\n\n\n\n<li class=\"has-children\"><span class=\"list-item-text\"><strong>Ph\u01b0\u01a1ng ph\u00e1p chi\u1ebft xu\u1ea5t:<\/strong><strong><br><\/strong>\n<\/span><ul class=\"wp-block-list\">\n<li><strong>Tr\u00edch xu\u1ea5t logic:<\/strong> Bao g\u1ed3m vi\u1ec7c tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng c\u1ea7n chuy\u1ec3n \u0111\u1ed5i \u0111\u00e1ng k\u1ec3, ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng d\u1eef li\u1ec7u \u0111\u1ed3ng nh\u1ea5t.<\/li>\n\n\n\n<li><strong>Tr\u00edch xu\u1ea5t v\u1eadt l\u00fd: <\/strong>Bao g\u1ed3m vi\u1ec7c tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u v\u1edbi m\u1ee9c chuy\u1ec3n \u0111\u1ed5i t\u1ed1i thi\u1ec3u ho\u1eb7c kh\u00f4ng chuy\u1ec3n \u0111\u1ed5i, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi x\u1eed l\u00fd c\u00e1c ngu\u1ed3n d\u1eef li\u1ec7u kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>X\u00e1c th\u1ef1c d\u1eef li\u1ec7u:<\/strong> \u0110\u1ea3m b\u1ea3o t\u00ednh ch\u00ednh x\u00e1c v\u00e0 t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c tr\u00edch xu\u1ea5t l\u00e0 r\u1ea5t quan tr\u1ecdng. B\u01b0\u1edbc n\u00e0y bao g\u1ed3m vi\u1ec7c x\u00e1c minh r\u1eb1ng d\u1eef li\u1ec7u tu\u00e2n th\u1ee7 c\u00e1c \u0111\u1ecbnh d\u1ea1ng v\u00e0 gi\u00e1 tr\u1ecb mong \u0111\u1ee3i, do \u0111\u00f3 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a d\u1eef li\u1ec7u. <br\/><\/li>\n\n\n\n<li><strong>L\u00e0m s\u1ea1ch d\u1eef li\u1ec7u: <\/strong>Sau khi tr\u00edch xu\u1ea5t, d\u1eef li\u1ec7u c\u00f3 th\u1ec3 c\u1ea7n \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch \u0111\u1ec3 kh\u1eafc ph\u1ee5c s\u1ef1 kh\u00f4ng nh\u1ea5t qu\u00e1n, lo\u1ea1i b\u1ecf c\u00e1c m\u1ee5c tr\u00f9ng l\u1eb7p v\u00e0 x\u1eed l\u00fd c\u00e1c gi\u00e1 tr\u1ecb b\u1ecb thi\u1ebfu, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady c\u1ee7a d\u1eef li\u1ec7u \u0111\u1ec3 ph\u00e2n t\u00edch.<\/li>\n<\/ol>\n\n<p>Khi c\u00e1c t\u1ed5 ch\u1ee9c ti\u1ebfp t\u1ee5c nh\u1eadn ra gi\u00e1 tr\u1ecb c\u1ee7a vi\u1ec7c ra quy\u1ebft \u0111\u1ecbnh d\u1ef1a tr\u00ean d\u1eef li\u1ec7u, t\u1ea7m quan tr\u1ecdng c\u1ee7a c\u00e1c quy tr\u00ecnh tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3 v\u00e0 ch\u00ednh x\u00e1c kh\u00f4ng th\u1ec3 b\u1ecb c\u01b0\u1eddng \u0111i\u1ec7u h\u00f3a. Vi\u1ec7c tri\u1ec3n khai c\u00e1c ph\u01b0\u01a1ng ph\u00e1p tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u m\u1ea1nh m\u1ebd \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c doanh nghi\u1ec7p c\u00f3 th\u1ec3 khai th\u00e1c to\u00e0n b\u1ed9 ti\u1ec1m n\u0103ng c\u1ee7a t\u00e0i s\u1ea3n d\u1eef li\u1ec7u c\u1ee7a m\u00ecnh, th\u00fac \u0111\u1ea9y \u0111\u1ed5i m\u1edbi v\u00e0 duy tr\u00ec l\u1ee3i th\u1ebf c\u1ea1nh tranh tr\u00ean th\u1ecb tr\u01b0\u1eddng. <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/What-is-Data-Extraction-Definition-How-It-Works-Examples-4-1024x576.jpg\" alt=\"&#x110;&#x1ECB;nh ngh&#x129;a tr&#xED;ch xu&#x1EA5;t d&#x1EEF; li&#x1EC7;u l&#xE0; g&#xEC;, c&#xE1;ch th&#x1EE9;c ho&#x1EA1;t &#x111;&#x1ED9;ng v&#xE0; v&#xED; d&#x1EE5; 3\" class=\"wp-image-28843\" title=\"\" srcset=\"https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/What-is-Data-Extraction-Definition-How-It-Works-Examples-4-1024x576.jpg 1024w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/What-is-Data-Extraction-Definition-How-It-Works-Examples-4-300x169.jpg 300w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/What-is-Data-Extraction-Definition-How-It-Works-Examples-4-768x432.jpg 768w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/What-is-Data-Extraction-Definition-How-It-Works-Examples-4-1536x864.jpg 1536w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/What-is-Data-Extraction-Definition-How-It-Works-Examples-4.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Qua_trinh_trich_xuat_du_lieu_dien_ra_nhu_the_nao\"><\/span>Qu\u00e1 tr\u00ecnh tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u di\u1ec5n ra nh\u01b0 th\u1ebf n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>Sau khi tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi <strong>\u201cTr\u00edch xu\u1ea5t d\u1eef li\u1ec7u l\u00e0 g\u00ec\u201d<\/strong>, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i kh\u00e1m ph\u00e1 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng th\u1ef1c s\u1ef1 c\u1ee7a quy tr\u00ecnh n\u00e0y. Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u l\u00e0 m\u1ed9t quy tr\u00ecnh c\u00f3 h\u1ec7 th\u1ed1ng li\u00ean quan \u0111\u1ebfn vi\u1ec7c truy xu\u1ea5t d\u1eef li\u1ec7u t\u1eeb nhi\u1ec1u ngu\u1ed3n kh\u00e1c nhau \u0111\u1ec3 chu\u1ea9n b\u1ecb cho vi\u1ec7c ph\u00e2n t\u00edch ho\u1eb7c l\u01b0u tr\u1eef th\u00eam. Sau \u0111\u00e2y l\u00e0 ph\u00e2n t\u00edch t\u1eebng b\u01b0\u1edbc v\u1ec1 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u:  <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/What-is-Data-Extraction-Definition-How-It-Works-Examples-3-1024x576.jpg\" alt=\"&#x110;&#x1ECB;nh ngh&#x129;a tr&#xED;ch xu&#x1EA5;t d&#x1EEF; li&#x1EC7;u l&#xE0; g&#xEC;, c&#xE1;ch th&#x1EE9;c ho&#x1EA1;t &#x111;&#x1ED9;ng v&#xE0; v&#xED; d&#x1EE5; 3\" class=\"wp-image-28863\" title=\"\" srcset=\"https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/What-is-Data-Extraction-Definition-How-It-Works-Examples-3-1024x576.jpg 1024w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/What-is-Data-Extraction-Definition-How-It-Works-Examples-3-300x169.jpg 300w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/What-is-Data-Extraction-Definition-How-It-Works-Examples-3-768x432.jpg 768w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/What-is-Data-Extraction-Definition-How-It-Works-Examples-3-1536x864.jpg 1536w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/What-is-Data-Extraction-Definition-How-It-Works-Examples-3.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Buoc_1_Xac_dinh_nguon_du_lieu\"><\/span><strong>B\u01b0\u1edbc 1: X\u00e1c \u0111\u1ecbnh ngu\u1ed3n d\u1eef li\u1ec7u<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>Hi\u1ec3u \u0111\u01b0\u1ee3c b\u1ea3n ch\u1ea5t c\u1ee7a ngu\u1ed3n d\u1eef li\u1ec7u gi\u00fap x\u00e1c \u0111\u1ecbnh ph\u01b0\u01a1ng ph\u00e1p tr\u00edch xu\u1ea5t v\u00e0 c\u00f4ng c\u1ee5 t\u1ed1t nh\u1ea5t c\u1ea7n thi\u1ebft cho quy tr\u00ecnh.<\/p>\n\n<p>Tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u tr\u00edch xu\u1ea5t, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i x\u00e1c \u0111\u1ecbnh d\u1eef li\u1ec7u n\u1eb1m \u1edf \u0111\u00e2u. Ngu\u1ed3n d\u1eef li\u1ec7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh ba lo\u1ea1i ch\u00ednh: <\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Ngu\u1ed3n c\u00f3 c\u1ea5u tr\u00fac:<\/strong> Bao g\u1ed3m c\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7 (SQL, Oracle, PostgreSQL), b\u1ea3ng t\u00ednh (Excel, Google Sheets) v\u00e0 kho d\u1eef li\u1ec7u \u0111\u00e1m m\u00e2y. D\u1eef li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c ch\u1eb7t ch\u1ebd v\u00e0 tu\u00e2n theo m\u1ed9t l\u01b0\u1ee3c \u0111\u1ed3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh tr\u01b0\u1edbc, gi\u00fap vi\u1ec7c tr\u00edch xu\u1ea5t t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n. <br\/><\/li>\n\n\n\n<li><strong>Ngu\u1ed3n kh\u00f4ng c\u00f3 c\u1ea5u tr\u00fac: <\/strong>\u0110\u00e2y l\u00e0 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef \u1edf c\u00e1c \u0111\u1ecbnh d\u1ea1ng kh\u00f4ng ph\u1ea3i d\u1ea1ng b\u1ea3ng nh\u01b0 PDF, email, t\u00e0i li\u1ec7u \u0111\u01b0\u1ee3c qu\u00e9t, h\u00ecnh \u1ea3nh v\u00e0 trang web. V\u00ec d\u1eef li\u1ec7u n\u00e0y kh\u00f4ng c\u00f3 \u0111\u1ecbnh d\u1ea1ng x\u00e1c \u0111\u1ecbnh n\u00ean c\u00e1c k\u1ef9 thu\u1eadt tr\u00edch xu\u1ea5t ti\u00ean ti\u1ebfn nh\u01b0 Nh\u1eadn d\u1ea1ng k\u00fd t\u1ef1 quang h\u1ecdc (OCR) v\u00e0 X\u1eed l\u00fd ng\u00f4n ng\u1eef t\u1ef1 nhi\u00ean (NLP) th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. <br\/><\/li>\n\n\n\n<li><strong>Ngu\u1ed3n b\u00e1n c\u1ea5u tr\u00fac: <\/strong>V\u00ed d\u1ee5 bao g\u1ed3m c\u01a1 s\u1edf d\u1eef li\u1ec7u XML, JSON v\u00e0 NoSQL (MongoDB, Cassandra). M\u1eb7c d\u00f9 kh\u00f4ng c\u00f3 c\u1ea5u tr\u00fac c\u1ee9ng nh\u1eafc nh\u01b0 c\u01a1 s\u1edf d\u1eef li\u1ec7u SQL, c\u00e1c ngu\u1ed3n n\u00e0y v\u1eabn ch\u1ee9a c\u00e1c th\u00e0nh ph\u1ea7n t\u1ed5 ch\u1ee9c nh\u01b0 th\u1ebb ho\u1eb7c c\u1eb7p kh\u00f3a-gi\u00e1 tr\u1ecb c\u00f3 th\u1ec3 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n tr\u00edch xu\u1ea5t. <\/li>\n<\/ul>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Ki\u1ec3u d\u1eef li\u1ec7u<\/strong><strong><\/strong><\/td><td><strong>\u0110\u1eb7c tr\u01b0ng<\/strong><\/td><\/tr><tr><td>C\u00f3 c\u1ea5u tr\u00fac<\/td><td>\u0110\u01b0\u1ee3c t\u1ed5 ch\u1ee9c ch\u1eb7t ch\u1ebd, l\u01b0u tr\u1eef trong c\u00e1c b\u1ea3ng\/c\u01a1 s\u1edf d\u1eef li\u1ec7u, d\u1ec5 d\u00e0ng t\u00ecm ki\u1ebfm<\/td><\/tr><tr><td>B\u00e1n c\u1ea5u tr\u00fac<\/td><td>Bao g\u1ed3m c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a c\u1ea3 d\u1eef li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac v\u00e0 kh\u00f4ng c\u00f3 c\u1ea5u tr\u00fac, s\u1eed d\u1ee5ng th\u1ebb ho\u1eb7c si\u00eau d\u1eef li\u1ec7u<\/td><\/tr><tr><td>Kh\u00f4ng c\u00f3 c\u1ea5u tr\u00fac<\/td><td>Kh\u00f4ng c\u00f3 \u0111\u1ecbnh d\u1ea1ng c\u1ed1 \u0111\u1ecbnh, kh\u00f3 x\u1eed l\u00fd n\u1ebfu kh\u00f4ng c\u00f3 c\u00f4ng c\u1ee5 AI\/ML<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Vi_du_ve_cac_nguon_du_lieu_pho_bien\"><\/span><strong>V\u00ed d\u1ee5 v\u1ec1 c\u00e1c ngu\u1ed3n d\u1eef li\u1ec7u ph\u1ed5 bi\u1ebfn:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Ngu\u1ed3n c\u00f3 c\u1ea5u tr\u00fac<\/strong><\/td><td><strong>Ngu\u1ed3n b\u00e1n c\u1ea5u tr\u00fac<\/strong><\/td><td><strong>Ngu\u1ed3n kh\u00f4ng c\u00f3 c\u1ea5u tr\u00fac<\/strong><\/td><\/tr><tr><td>&#8211; <strong>C\u01a1 s\u1edf d\u1eef li\u1ec7u<\/strong>: C\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7 (RDBMS), C\u01a1 s\u1edf d\u1eef li\u1ec7u NoSQL, C\u01a1 s\u1edf d\u1eef li\u1ec7u \u0111\u00e1m m\u00e2y<br\/><br\/>&#8211; <strong>\u1ee8ng d\u1ee5ng doanh nghi\u1ec7p:<\/strong> H\u1ec7 th\u1ed1ng ERP (L\u1eadp k\u1ebf ho\u1ea1ch ngu\u1ed3n l\u1ef1c doanh nghi\u1ec7p), H\u1ec7 th\u1ed1ng CRM (Qu\u1ea3n l\u00fd quan h\u1ec7 kh\u00e1ch h\u00e0ng), H\u1ec7 th\u1ed1ng nh\u00e2n s\u1ef1 v\u00e0 ti\u1ec1n l\u01b0\u01a1ng<br\/><br\/>&#8211; <strong>D\u1eef li\u1ec7u t\u00e0i ch\u00ednh v\u00e0 th\u1ecb tr\u01b0\u1eddng: <\/strong>D\u1eef li\u1ec7u giao d\u1ecbch v\u00e0 th\u1ecb tr\u01b0\u1eddng ch\u1ee9ng kho\u00e1n, D\u1eef li\u1ec7u ti\u1ec1n \u0111i\u1ec7n t\u1eed, Giao d\u1ecbch ng\u00e2n h\u00e0ng<br\/><br\/>&#8211; <strong>D\u1eef li\u1ec7u c\u1ea3m bi\u1ebfn v\u00e0 IoT (khi \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong c\u01a1 s\u1edf d\u1eef li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac):<\/strong> D\u1eef li\u1ec7u t\u1eeb c\u1ea3m bi\u1ebfn c\u00f4ng nghi\u1ec7p, h\u1ec7 th\u1ed1ng theo d\u00f5i GPS, \u0111\u1ed3ng h\u1ed3 \u0111o th\u00f4ng minh, v.v.<\/td><td>&#8211; <strong>D\u1eef li\u1ec7u web (API &amp; T\u1ec7p JSON\/XML): <\/strong>D\u1eef li\u1ec7u t\u1eeb API RESTful, API m\u1ea1ng x\u00e3 h\u1ed9i (Twitter, LinkedIn), th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1ecbnh d\u1ea1ng \u1edf d\u1ea1ng <strong>JSON<\/strong> (K\u00fd hi\u1ec7u \u0111\u1ed1i t\u01b0\u1ee3ng JavaScript) ho\u1eb7c <strong>XML<\/strong> (Ng\u00f4n ng\u1eef \u0111\u00e1nh d\u1ea5u m\u1edf r\u1ed9ng) C\u01a1 s\u1edf <strong>d\u1eef li\u1ec7u NoSQL:<\/strong> MongoDB (d\u1ef1a tr\u00ean t\u00e0i li\u1ec7u), Cassandra (kho l\u01b0u tr\u1eef c\u1ed9t r\u1ed9ng), Redis (kho l\u01b0u tr\u1eef kh\u00f3a-gi\u00e1 tr\u1ecb)<br\/><br\/>&#8211; <strong>Email &amp; Nh\u1eadt k\u00fd tr\u00f2 chuy\u1ec7n:<\/strong> Ch\u1ee9a si\u00eau d\u1eef li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac (v\u00ed d\u1ee5: ng\u01b0\u1eddi g\u1eedi, ng\u01b0\u1eddi nh\u1eadn, d\u1ea5u th\u1eddi gian) v\u00e0 n\u1ed9i dung tin nh\u1eafn kh\u00f4ng c\u00f3 c\u1ea5u tr\u00fac<br\/><br\/>&#8211;<strong> D\u1eef li\u1ec7u kh\u00f4ng gian \u0111\u1ecba l\u00fd v\u00e0 b\u1ea3n \u0111\u1ed3:<\/strong> D\u1eef li\u1ec7u GIS t\u1eeb Google Maps API, si\u00eau d\u1eef li\u1ec7u h\u00ecnh \u1ea3nh v\u1ec7 tinh, th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong <strong>GeoJSON<\/strong> ho\u1eb7c <strong>KML (Ng\u00f4n ng\u1eef \u0111\u00e1nh d\u1ea5u l\u1ed7 kh\u00f3a)<\/strong><br\/><br\/>&#8211; <strong>D\u1eef li\u1ec7u IoT &amp; C\u1ea3m bi\u1ebfn (khi \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong c\u01a1 s\u1edf d\u1eef li\u1ec7u kh\u00f4ng quan h\u1ec7): <\/strong>T\u1ec7p nh\u1eadt k\u00fd t\u1eeb thi\u1ebft b\u1ecb nh\u00e0 th\u00f4ng minh, \u1ee9ng d\u1ee5ng theo d\u00f5i s\u1ee9c kh\u1ecfe, \u00f4 t\u00f4 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i<br\/><br\/>&#8211; <strong>Giao d\u1ecbch t\u00e0i ch\u00ednh trong Nh\u1eadt k\u00fd:<\/strong> Nh\u1eadt k\u00fd giao d\u1ecbch trong c\u00e1c \u1ee9ng d\u1ee5ng ng\u00e2n h\u00e0ng, s\u1ed5 c\u00e1i ti\u1ec1n \u0111i\u1ec7n t\u1eed nh\u01b0 blockchain<\/td><td>&#8211; <strong>T\u00e0i li\u1ec7u v\u0103n b\u1ea3n &amp; PDF: <\/strong>B\u00e1o c\u00e1o kinh doanh, h\u1ee3p \u0111\u1ed3ng, b\u00e0i nghi\u00ean c\u1ee9u, h\u00f3a \u0111\u01a1n <strong>D\u1eef li\u1ec7u web (Trang HTML, Thu th\u1eadp d\u1eef li\u1ec7u web):<\/strong> C\u00e1c trang web ch\u1ee9a n\u1ed9i dung kh\u00f4ng c\u00f3 c\u1ea5u tr\u00fac c\u1ea7n ph\u00e2n t\u00edch c\u00fa ph\u00e1p \u0111\u1ec3 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u<br\/><br\/>&#8211; <strong>N\u1ed9i dung truy\u1ec1n th\u00f4ng x\u00e3 h\u1ed9i:<\/strong> B\u00e0i \u0111\u0103ng, b\u00ecnh lu\u1eadn, \u0111\u00e1nh gi\u00e1, h\u00ecnh \u1ea3nh v\u00e0 video t\u1eeb c\u00e1c n\u1ec1n t\u1ea3ng nh\u01b0 Twitter, Instagram, Facebook<br\/><br\/>&#8211; <strong>T\u1ec7p \u0111a ph\u01b0\u01a1ng ti\u1ec7n (H\u00ecnh \u1ea3nh, Video, \u00c2m thanh):<\/strong> C\u1ea3nh quay CCTV, h\u00ecnh \u1ea3nh s\u1ea3n ph\u1ea9m, podcast, b\u1ea3n ghi \u00e2m cu\u1ed9c g\u1ecdi d\u1ecbch v\u1ee5 kh\u00e1ch h\u00e0ng<br\/><br\/>&#8211; <strong>T\u00e0i li\u1ec7u \u0111\u01b0\u1ee3c qu\u00e9t v\u00e0 ghi ch\u00fa vi\u1ebft tay: <\/strong>Tr\u00edch xu\u1ea5t b\u1eb1ng OCR (Nh\u1eadn d\u1ea1ng k\u00fd t\u1ef1 quang h\u1ecdc)<br\/><br\/>&#8211; <strong>H\u1ed3 s\u01a1 b\u1ec7nh \u00e1n (khi l\u01b0u tr\u1eef \u1edf \u0111\u1ecbnh d\u1ea1ng v\u0103n b\u1ea3n t\u1ef1 do):<\/strong> Ghi ch\u00fa c\u1ee7a b\u00e1c s\u0129, h\u00ecnh \u1ea3nh ch\u1ee5p X-quang, b\u00e1o c\u00e1o b\u1ec7nh l\u00fd<br\/><br\/>&#8211; <strong>Ph\u1ea3n h\u1ed3i &amp; \u0110\u00e1nh gi\u00e1 c\u1ee7a kh\u00e1ch h\u00e0ng: <\/strong>Ph\u1ea3n h\u1ed3i kh\u1ea3o s\u00e1t, \u0111\u00e1nh gi\u00e1 tr\u1ef1c tuy\u1ebfn, tin nh\u1eafn phi\u1ebfu h\u1ed7 tr\u1ee3<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Buoc_2_Thiet_lap_cac_yeu_cau_trich_xuat_du_lieu\"><\/span><strong>B\u01b0\u1edbc 2: Thi\u1ebft l\u1eadp c\u00e1c y\u00eau c\u1ea7u tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>Sau khi x\u00e1c \u0111\u1ecbnh c\u00e1c ngu\u1ed3n, b\u01b0\u1edbc ti\u1ebfp theo l\u00e0 x\u00e1c \u0111\u1ecbnh ph\u1ea1m vi v\u00e0 m\u1ee5c ti\u00eau c\u1ee7a qu\u00e1 tr\u00ecnh tr\u00edch xu\u1ea5t. Bao g\u1ed3m: <\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>X\u00e1c \u0111\u1ecbnh m\u1ee5c ti\u00eau: <\/strong>N\u00eau r\u00f5 d\u1eef li\u1ec7u n\u00e0o c\u1ea7n \u0111\u01b0\u1ee3c tr\u00edch xu\u1ea5t v\u00e0 l\u00fd do t\u1ea1i sao. V\u00ed d\u1ee5, m\u1ed9t c\u00f4ng ty th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed c\u00f3 th\u1ec3 mu\u1ed1n tr\u00edch xu\u1ea5t l\u1ecbch s\u1eed mua h\u00e0ng c\u1ee7a kh\u00e1ch h\u00e0ng \u0111\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh c\u00e1 nh\u00e2n h\u00f3a. <br\/><\/li>\n\n\n\n<li><strong>X\u00e1c \u0111\u1ecbnh t\u1ea7n su\u1ea5t tr\u00edch xu\u1ea5t:<\/strong> T\u00f9y thu\u1ed9c v\u00e0o nhu c\u1ea7u kinh doanh, vi\u1ec7c tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u c\u00f3 th\u1ec3 di\u1ec5n ra theo th\u1eddi gian th\u1ef1c (c\u1eadp nh\u1eadt li\u00ean t\u1ee5c), theo l\u1ecbch tr\u00ecnh (h\u00e0ng ng\u00e0y, h\u00e0ng tu\u1ea7n, h\u00e0ng th\u00e1ng) ho\u1eb7c theo y\u00eau c\u1ea7u (tr\u00edch xu\u1ea5t m\u1ed9t l\u1ea7n).<br\/><\/li>\n\n\n\n<li><strong>C\u00e2n nh\u1eafc v\u1ec1 tu\u00e2n th\u1ee7 v\u00e0 b\u1ea3o m\u1eadt: <\/strong>N\u1ebfu x\u1eed l\u00fd th\u00f4ng tin nh\u1ea1y c\u1ea3m (d\u1eef li\u1ec7u t\u00e0i ch\u00ednh, h\u1ed3 s\u01a1 ch\u0103m s\u00f3c s\u1ee9c kh\u1ecfe), h\u00e3y \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh nh\u01b0 <strong>GDPR (Quy \u0111\u1ecbnh b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u chung)<\/strong> ho\u1eb7c <strong>CCPA (\u0110\u1ea1o lu\u1eadt b\u1ea3o m\u1eadt ng\u01b0\u1eddi ti\u00eau d\u00f9ng California) <\/strong>\u0111\u1ec3 tr\u00e1nh r\u1ee7i ro ph\u00e1p l\u00fd.<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Buoc_3_Chon_phuong_phap_trich_xuat_phu_hop\"><\/span><strong>B\u01b0\u1edbc 3: Ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p tr\u00edch xu\u1ea5t ph\u00f9 h\u1ee3p<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 kh\u1ed1i l\u01b0\u1ee3ng d\u1eef li\u1ec7u, \u0111\u1ecbnh d\u1ea1ng v\u00e0 y\u00eau c\u1ea7u x\u1eed l\u00fd. Vi\u1ec7c l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p tr\u00edch xu\u1ea5t ph\u1ee5 thu\u1ed9c v\u00e0o lo\u1ea1i ngu\u1ed3n d\u1eef li\u1ec7u v\u00e0 m\u1ee9c \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a qu\u00e1 tr\u00ecnh tr\u00edch xu\u1ea5t. Hai ph\u01b0\u01a1ng ph\u00e1p ch\u00ednh l\u00e0:  <\/p>\n\n<ul class=\"wp-block-list\">\n<li class=\"has-children\"><span class=\"list-item-text\"><strong>Tr\u00edch xu\u1ea5t logic<\/strong> \u2013 \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng khi h\u1ec7 th\u1ed1ng ngu\u1ed3n c\u00f3 th\u1ec3 truy c\u1eadp v\u00e0 c\u00f3 c\u1ea5u tr\u00fac. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u tr\u1ef1c ti\u1ebfp m\u00e0 kh\u00f4ng c\u1ea7n thay \u0111\u1ed5i v\u1eadt l\u00fd. N\u00f3 bao g\u1ed3m:  <br>\n<\/span><ul class=\"wp-block-list\">\n<li><strong>Tr\u00edch xu\u1ea5t \u0111\u1ea7y \u0111\u1ee7<\/strong> \u2013 Tr\u00edch xu\u1ea5t to\u00e0n b\u1ed9 t\u1eadp d\u1eef li\u1ec7u c\u00f9ng m\u1ed9t l\u00fac, h\u1eefu \u00edch cho vi\u1ec7c di chuy\u1ec3n d\u1eef li\u1ec7u ban \u0111\u1ea7u.<\/li>\n\n\n\n<li><strong>Tr\u00edch xu\u1ea5t gia t\u0103ng<\/strong> \u2013 Ch\u1ec9 tr\u00edch xu\u1ea5t c\u00e1c b\u1ea3n ghi m\u1edbi \u0111\u01b0\u1ee3c th\u00eam v\u00e0o ho\u1eb7c s\u1eeda \u0111\u1ed5i, gi\u1ea3m thi\u1ec3u th\u1eddi gian x\u1eed l\u00fd v\u00e0 t\u1ea3i h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li class=\"has-children\"><span class=\"list-item-text\"><strong>Tr\u00edch xu\u1ea5t v\u1eadt l\u00fd <\/strong>\u2013 \u00c1p d\u1ee5ng khi kh\u00f4ng th\u1ec3 truy c\u1eadp tr\u1ef1c ti\u1ebfp v\u00e0o ngu\u1ed3n d\u1eef li\u1ec7u. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p bao g\u1ed3m: <br>\n<\/span><ul class=\"wp-block-list\">\n<li><strong>Thu th\u1eadp d\u1eef li\u1ec7u web<\/strong> \u2013 Tr\u00edch xu\u1ea5t th\u00f4ng tin t\u1eeb c\u00e1c trang web b\u1eb1ng c\u00e1c c\u00f4ng c\u1ee5 t\u1ef1 \u0111\u1ed9ng nh\u01b0<strong> BeautifulSoup, Scrapy ho\u1eb7c Selenium.<\/strong><\/li>\n\n\n\n<li><strong>OCR (Nh\u1eadn d\u1ea1ng k\u00fd t\u1ef1 quang h\u1ecdc)<\/strong> \u2013 Chuy\u1ec3n \u0111\u1ed5i t\u00e0i li\u1ec7u ho\u1eb7c h\u00ecnh \u1ea3nh \u0111\u01b0\u1ee3c qu\u00e9t th\u00e0nh d\u1eef li\u1ec7u d\u1ea1ng v\u0103n b\u1ea3n.<\/li>\n\n\n\n<li><strong>\u0110\u01b0\u1eddng \u1ed1ng ETL (Tr\u00edch xu\u1ea5t, Chuy\u1ec3n \u0111\u1ed5i, T\u1ea3i)<\/strong> \u2013 S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ETL nh\u01b0 <strong>Apache NiFi, Talend ho\u1eb7c Informatica <\/strong>\u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Buoc_4_Trien_khai_quy_trinh_trich_xuat_du_lieu\"><\/span><strong>B\u01b0\u1edbc 4: Tri\u1ec3n khai quy tr\u00ecnh tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>Vi\u1ec7c tri\u1ec3n khai \u0111\u00fang c\u00e1ch \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c tr\u00edch xu\u1ea5t l\u00e0 \u0111\u00e1ng tin c\u1eady v\u00e0 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n t\u00edch th\u00eam. Sau khi ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c ch\u1ecdn, qu\u00e1 tr\u00ecnh tr\u00edch xu\u1ea5t th\u1ef1c t\u1ebf s\u1ebd b\u1eaft \u0111\u1ea7u. B\u01b0\u1edbc n\u00e0y bao g\u1ed3m:  <\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>K\u1ebft n\u1ed1i v\u1edbi Ngu\u1ed3n d\u1eef li\u1ec7u: <\/strong>\u0110\u1ed1i v\u1edbi c\u01a1 s\u1edf d\u1eef li\u1ec7u, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 vi\u1ebft c\u00e1c truy v\u1ea5n SQL (v\u00ed d\u1ee5: SELECT * FROM customers). \u0110\u1ed1i v\u1edbi API, \u0111i\u1ec1u n\u00e0y li\u00ean quan \u0111\u1ebfn vi\u1ec7c g\u1eedi c\u00e1c y\u00eau c\u1ea7u HTTP \u0111\u1ec3 truy xu\u1ea5t d\u1eef li\u1ec7u JSON\/XML. <br\/><\/li>\n\n\n\n<li><strong>T\u1ef1 \u0111\u1ed9ng tr\u00edch xu\u1ea5t (n\u1ebfu c\u00f3):<\/strong> C\u00e1c t\u1ed5 ch\u1ee9c c\u00f3 nhu c\u1ea7u d\u1eef li\u1ec7u quy m\u00f4 l\u1edbn th\u01b0\u1eddng s\u1eed d\u1ee5ng<strong> RPA (T\u1ef1 \u0111\u1ed9ng h\u00f3a quy tr\u00ecnh b\u1eb1ng robot)<\/strong> ho\u1eb7c<strong> c\u00e1c t\u1eadp l\u1ec7nh d\u1ef1a tr\u00ean Python <\/strong>\u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng tr\u00edch xu\u1ea5t.<br\/><\/li>\n\n\n\n<li><strong>\u0110\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a d\u1eef li\u1ec7u: <\/strong>D\u1eef li\u1ec7u ph\u1ea3i \u0111\u01b0\u1ee3c tr\u00edch xu\u1ea5t theo c\u00e1ch duy tr\u00ec \u0111\u01b0\u1ee3c c\u1ea5u tr\u00fac c\u1ee7a n\u00f3, tr\u00e1nh c\u00e1c t\u1eadp d\u1eef li\u1ec7u kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7 ho\u1eb7c b\u1ecb h\u1ecfng.<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Buoc_5_Xac_thuc_du_lieu_da_trich_xuat\"><\/span><strong>B\u01b0\u1edbc 5: X\u00e1c th\u1ef1c d\u1eef li\u1ec7u \u0111\u00e3 tr\u00edch xu\u1ea5t<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>B\u01b0\u1edbc n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 ng\u0103n ng\u1eeba s\u1ef1 kh\u00f4ng nh\u1ea5t qu\u00e1n c\u1ee7a d\u1eef li\u1ec7u c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn th\u00f4ng tin kinh doanh kh\u00f4ng ch\u00ednh x\u00e1c. D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c tr\u00edch xu\u1ea5t ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m tra v\u1ec1 t\u00ednh ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ea7y \u0111\u1ee7 tr\u01b0\u1edbc khi chuy\u1ec3n sang giai \u0111o\u1ea1n ti\u1ebfp theo. C\u00e1c b\u01b0\u1edbc x\u00e1c th\u1ef1c ch\u00ednh bao g\u1ed3m:  <\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Ki\u1ec3m tra t\u00ednh \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a d\u1eef li\u1ec7u:<\/strong> \u0110\u1ea3m b\u1ea3o tr\u00edch xu\u1ea5t t\u1ea5t c\u1ea3 c\u00e1c tr\u01b0\u1eddng b\u1eaft bu\u1ed9c (v\u00ed d\u1ee5: h\u1ed3 s\u01a1 kh\u00e1ch h\u00e0ng ph\u1ea3i bao g\u1ed3m t\u00ean, email v\u00e0 s\u1ed1 \u0111i\u1ec7n tho\u1ea1i).<\/li>\n\n\n\n<li><strong>Ki\u1ec3m tra t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a d\u1eef li\u1ec7u: <\/strong>X\u00e1c minh r\u1eb1ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c tr\u00edch xu\u1ea5t kh\u1edbp v\u1edbi ngu\u1ed3n c\u1ee7a n\u00f3.<\/li>\n\n\n\n<li><strong>X\u1eed l\u00fd l\u1ed7i v\u00e0 ghi nh\u1eadt k\u00fd:<\/strong> X\u00e1c \u0111\u1ecbnh v\u00e0 s\u1eeda c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 gi\u00e1 tr\u1ecb b\u1ecb thi\u1ebfu, b\u1ea3n ghi tr\u00f9ng l\u1eb7p ho\u1eb7c l\u1ed7i \u0111\u1ecbnh d\u1ea1ng.<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Buoc_6_Chuyen_doi_va_lam_sach_du_lieu\"><\/span><strong>B\u01b0\u1edbc 6: Chuy\u1ec3n \u0111\u1ed5i v\u00e0 l\u00e0m s\u1ea1ch d\u1eef li\u1ec7u<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i v\u00e0 l\u00e0m s\u1ea1ch d\u1eef li\u1ec7u \u0111\u1ea3m b\u1ea3o r\u1eb1ng d\u1eef li\u1ec7u \u0111\u00e3 s\u1eb5n s\u00e0ng cho vi\u1ec7c ph\u00e2n t\u00edch v\u00e0 ra quy\u1ebft \u0111\u1ecbnh c\u00f3 \u00fd ngh\u0129a. Tr\u01b0\u1edbc khi d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c tr\u00edch xu\u1ea5t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, d\u1eef li\u1ec7u th\u01b0\u1eddng c\u1ea7n \u0111\u01b0\u1ee3c<strong> chuy\u1ec3n \u0111\u1ed5i v\u00e0 l\u00e0m s\u1ea1ch<\/strong>. B\u01b0\u1edbc n\u00e0y bao g\u1ed3m:  <\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Chu\u1ea9n h\u00f3a d\u1eef li\u1ec7u:<\/strong> Chu\u1ea9n h\u00f3a \u0111\u1ecbnh d\u1ea1ng (v\u00ed d\u1ee5: chuy\u1ec3n \u0111\u1ed5i ng\u00e0y th\u00e1ng sang \u0111\u1ecbnh d\u1ea1ng th\u1ed1ng nh\u1ea5t nh\u01b0 YYYY-MM-DD).<\/li>\n\n\n\n<li><strong>X\u00f3a b\u1ea3n sao:<\/strong> Lo\u1ea1i b\u1ecf c\u00e1c b\u1ea3n ghi tr\u00f9ng l\u1eb7p \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a d\u1eef li\u1ec7u.<\/li>\n\n\n\n<li><strong>X\u1eed l\u00fd c\u00e1c gi\u00e1 tr\u1ecb b\u1ecb thi\u1ebfu:<\/strong> S\u1eed d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt nh\u01b0 t\u00ednh to\u00e1n (\u0111i\u1ec1n gi\u00e1 tr\u1ecb b\u1ecb thi\u1ebfu b\u1eb1ng gi\u00e1 tr\u1ecb trung b\u00ecnh) ho\u1eb7c x\u00f3a (x\u00f3a c\u00e1c b\u1ea3n ghi kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7).<\/li>\n\n\n\n<li><strong>L\u00e0m gi\u00e0u d\u1eef li\u1ec7u: <\/strong>K\u1ebft h\u1ee3p d\u1eef li\u1ec7u \u0111\u00e3 tr\u00edch xu\u1ea5t v\u1edbi c\u00e1c t\u1eadp d\u1eef li\u1ec7u b\u00ean ngo\u00e0i \u0111\u1ec3 n\u00e2ng cao hi\u1ec3u bi\u1ebft s\u00e2u s\u1eafc (v\u00ed d\u1ee5: t\u00edch h\u1ee3p d\u1eef li\u1ec7u th\u1eddi ti\u1ebft v\u1edbi d\u1eef li\u1ec7u b\u00e1n h\u00e0ng).<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Buoc_7_Tai_du_lieu_vao_he_thong_muc_tieu\"><\/span><strong>B\u01b0\u1edbc 7: T\u1ea3i d\u1eef li\u1ec7u v\u00e0o h\u1ec7 th\u1ed1ng m\u1ee5c ti\u00eau<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>T\u1ea3i d\u1eef li\u1ec7u v\u00e0o h\u1ec7 th\u1ed1ng \u0111\u00edch \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c tr\u00edch xu\u1ea5t c\u00f3 th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c v\u00e0 s\u1eb5n s\u00e0ng \u0111\u1ec3 s\u1eed d\u1ee5ng th\u00eam. Sau khi chuy\u1ec3n \u0111\u1ed5i, d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c t\u1ea3i v\u00e0o \u0111\u00edch c\u1ee7a n\u00f3, c\u00f3 th\u1ec3 l\u00e0: <\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Kho d\u1eef li\u1ec7u (v\u00ed d\u1ee5: Amazon Redshift, Google BigQuery, Snowflake)<\/strong> \u2013 \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n t\u00edch v\u00e0 b\u00e1o c\u00e1o.<\/li>\n\n\n\n<li><strong>H\u1ed3 d\u1eef li\u1ec7u (v\u00ed d\u1ee5: Apache Hadoop, Azure Data Lake)<\/strong> \u2013 L\u00fd t\u01b0\u1edfng \u0111\u1ec3 l\u01b0u tr\u1eef kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn d\u1eef li\u1ec7u th\u00f4, kh\u00f4ng c\u00f3 c\u1ea5u tr\u00fac.<\/li>\n\n\n\n<li><strong>C\u00f4ng c\u1ee5 Business Intelligence (BI) (v\u00ed d\u1ee5: Tableau, Power BI)<\/strong> \u2013 \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 tr\u1ef1c quan h\u00f3a v\u00e0 t\u1ea1o ra th\u00f4ng tin chi ti\u1ebft.<\/li>\n\n\n\n<li><strong>C\u01a1 s\u1edf d\u1eef li\u1ec7u ho\u1ea1t \u0111\u1ed9ng (v\u00ed d\u1ee5: MySQL, PostgreSQL)<\/strong> \u2013 N\u1ebfu d\u1eef li\u1ec7u c\u1ea7n \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o ho\u1ea1t \u0111\u1ed9ng kinh doanh h\u00e0ng ng\u00e0y.<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Buoc_8_Theo_doi_va_duy_tri_qua_trinh_chiet_xuat\"><\/span><strong>B\u01b0\u1edbc 8: Theo d\u00f5i v\u00e0 duy tr\u00ec qu\u00e1 tr\u00ecnh chi\u1ebft xu\u1ea5t<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh m\u1ed9t l\u1ea7n; n\u00f3 \u0111\u00f2i h\u1ecfi ph\u1ea3i theo d\u00f5i v\u00e0 t\u1ed1i \u01b0u h\u00f3a li\u00ean t\u1ee5c. \u0110i\u1ec1u n\u00e0y bao g\u1ed3m: <\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Gi\u00e1m s\u00e1t hi\u1ec7u su\u1ea5t:<\/strong> Theo d\u00f5i th\u1eddi gian tr\u00edch xu\u1ea5t v\u00e0 hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3.<\/li>\n\n\n\n<li><strong>Ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng d\u1eef li\u1ec7u:<\/strong> \u0110\u1ecbnh k\u1ef3 xem x\u00e9t d\u1eef li\u1ec7u \u0111\u00e3 tr\u00edch xu\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u v\u1eabn ch\u00ednh x\u00e1c v\u00e0 c\u00f3 li\u00ean quan.<\/li>\n\n\n\n<li><strong>C\u1eadp nh\u1eadt logic tr\u00edch xu\u1ea5t: <\/strong>\u0110i\u1ec1u ch\u1ec9nh ph\u01b0\u01a1ng ph\u00e1p khi ngu\u1ed3n d\u1eef li\u1ec7u thay \u0111\u1ed5i (v\u00ed d\u1ee5: m\u1ed9t trang web c\u1eadp nh\u1eadt c\u1ea5u tr\u00fac HTML, y\u00eau c\u1ea7u s\u1eeda \u0111\u1ed5i t\u1eadp l\u1ec7nh thu th\u1eadp d\u1eef li\u1ec7u web).<\/li>\n\n\n\n<li><strong>Ki\u1ec3m tra b\u1ea3o m\u1eadt v\u00e0 tu\u00e2n th\u1ee7: <\/strong>\u0110\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 li\u00ean t\u1ee5c c\u00e1c quy \u0111\u1ecbnh c\u1ee7a <strong>GDPR, HIPAA ho\u1eb7c SOC 2.<\/strong><\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cac_loai_trich_xuat_du_lieu\"><\/span>C\u00e1c lo\u1ea1i tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>\u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 \u201cTr\u00edch xu\u1ea5t d\u1eef li\u1ec7u l\u00e0 g\u00ec\u201d, b\u1ea1n n\u00ean bi\u1ebft r\u1eb1ng quy tr\u00ecnh n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh s\u00e1u ki\u1ec3u ch\u00ednh.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/What-is-Data-Extraction-Definition-How-It-Works-Examples--1024x576.jpg\" alt=\"&#x110;&#x1ECB;nh ngh&#x129;a tr&#xED;ch xu&#x1EA5;t d&#x1EEF; li&#x1EC7;u l&#xE0; g&#xEC;, c&#xE1;ch th&#x1EE9;c ho&#x1EA1;t &#x111;&#x1ED9;ng v&#xE0; v&#xED; d&#x1EE5; 3\" class=\"wp-image-28859\" title=\"\" srcset=\"https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/What-is-Data-Extraction-Definition-How-It-Works-Examples--1024x576.jpg 1024w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/What-is-Data-Extraction-Definition-How-It-Works-Examples--300x169.jpg 300w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/What-is-Data-Extraction-Definition-How-It-Works-Examples--768x432.jpg 768w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/What-is-Data-Extraction-Definition-How-It-Works-Examples--1536x864.jpg 1536w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/What-is-Data-Extraction-Definition-How-It-Works-Examples-.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Trich_xuat_logic\"><\/span><strong>1. Tr\u00edch xu\u1ea5t logic<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>Tr\u00edch xu\u1ea5t logic li\u00ean quan \u0111\u1ebfn vi\u1ec7c truy xu\u1ea5t d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng th\u1ef1c hi\u1ec7n thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 \u0111\u1ed1i v\u1edbi c\u1ea5u tr\u00fac ho\u1eb7c \u0111\u1ecbnh d\u1ea1ng c\u1ee7a d\u1eef li\u1ec7u. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch khi x\u1eed l\u00fd c\u00e1c ngu\u1ed3n d\u1eef li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac, trong \u0111\u00f3 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c theo c\u00e1ch \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh tr\u01b0\u1edbc. Tr\u00edch xu\u1ea5t logic c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh hai c\u00e1ch ti\u1ebfp c\u1eadn ch\u00ednh:  <\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Tr\u00edch xu\u1ea5t \u0111\u1ea7y \u0111\u1ee7:<\/strong> Trong ph\u01b0\u01a1ng ph\u00e1p n\u00e0y, to\u00e0n b\u1ed9 t\u1eadp d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c tr\u00edch xu\u1ea5t trong m\u1ed9t l\u1ea7n. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong qu\u00e1 tr\u00ecnh di chuy\u1ec3n d\u1eef li\u1ec7u ban \u0111\u1ea7u ho\u1eb7c khi c\u1ea7n c\u00f3 \u1ea3nh ch\u1ee5p nhanh to\u00e0n di\u1ec7n v\u1ec1 d\u1eef li\u1ec7u. M\u1eb7c d\u00f9 \u0111\u01a1n gi\u1ea3n, tr\u00edch xu\u1ea5t \u0111\u1ea7y \u0111\u1ee7 c\u00f3 th\u1ec3 t\u1ed1n th\u1eddi gian v\u00e0 t\u00e0i nguy\u00ean, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi c\u00e1c t\u1eadp d\u1eef li\u1ec7u l\u1edbn.  <br\/><\/li>\n\n\n\n<li><strong>Tr\u00edch xu\u1ea5t gia t\u0103ng:<\/strong> Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y t\u1eadp trung v\u00e0o vi\u1ec7c ch\u1ec9 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u \u0111\u00e3 thay \u0111\u1ed5i k\u1ec3 t\u1eeb l\u1ea7n tr\u00edch xu\u1ea5t cu\u1ed1i c\u00f9ng. B\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh v\u00e0 truy xu\u1ea5t c\u00e1c b\u1ea3n ghi m\u1edbi ho\u1eb7c \u0111\u00e3 c\u1eadp nh\u1eadt, tr\u00edch xu\u1ea5t gia t\u0103ng gi\u00fap gi\u1ea3m th\u1eddi gian x\u1eed l\u00fd v\u00e0 t\u1ea3i h\u1ec7 th\u1ed1ng, gi\u00fap hi\u1ec7u qu\u1ea3 h\u01a1n cho c\u00e1c t\u00e1c v\u1ee5 t\u00edch h\u1ee3p d\u1eef li\u1ec7u \u0111ang di\u1ec5n ra. <\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Chiet_xuat_vat_ly\"><\/span><strong>2. Chi\u1ebft xu\u1ea5t v\u1eadt l\u00fd<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>Tr\u00edch xu\u1ea5t v\u1eadt l\u00fd li\u00ean quan \u0111\u1ebfn vi\u1ec7c sao ch\u00e9p d\u1eef li\u1ec7u \u1edf c\u1ea5p \u0111\u1ed9 l\u01b0u tr\u1eef, th\u01b0\u1eddng kh\u00f4ng t\u01b0\u01a1ng t\u00e1c tr\u1ef1c ti\u1ebfp v\u1edbi \u1ee9ng d\u1ee5ng ngu\u1ed3n. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi quy\u1ec1n truy c\u1eadp tr\u1ef1c ti\u1ebfp v\u00e0o ngu\u1ed3n d\u1eef li\u1ec7u b\u1ecb h\u1ea1n ch\u1ebf ho\u1eb7c khi x\u1eed l\u00fd kh\u1ed1i l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn. Tr\u00edch xu\u1ea5t v\u1eadt l\u00fd c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1c k\u1ef9 thu\u1eadt nh\u01b0:  <\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Truy c\u1eadp c\u01a1 s\u1edf d\u1eef li\u1ec7u tr\u1ef1c ti\u1ebfp:<\/strong> Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u b\u1eb1ng c\u00e1ch k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp \u0111\u1ebfn c\u00e1c t\u1ec7p l\u01b0u tr\u1eef c\u01a1 s\u1edf d\u1eef li\u1ec7u, b\u1ecf qua l\u1edbp \u1ee9ng d\u1ee5ng. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u00f2i h\u1ecfi ki\u1ebfn \u200b\u200bth\u1ee9c chuy\u00ean s\u00e2u v\u1ec1 ki\u1ebfn \u200b\u200btr\u00fac c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c t\u00ecnh hu\u1ed1ng ph\u1ee5c h\u1ed3i th\u1ea3m h\u1ecda. <\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Quet_man_hinh\"><\/span><strong>3. Qu\u00e9t m\u00e0n h\u00ecnh<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>Screen scraping l\u00e0 qu\u00e1 tr\u00ecnh thu th\u1eadp d\u1eef li\u1ec7u hi\u1ec3n th\u1ecb tr\u00ean m\u00e0n h\u00ecnh, th\u01b0\u1eddng l\u00e0 t\u1eeb c\u00e1c h\u1ec7 th\u1ed1ng ho\u1eb7c \u1ee9ng d\u1ee5ng c\u0169 kh\u00f4ng cung c\u1ea5p quy\u1ec1n truy c\u1eadp d\u1eef li\u1ec7u tr\u1ef1c ti\u1ebfp. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y bao g\u1ed3m vi\u1ec7c \u0111\u1ecdc \u0111\u1ea7u ra tr\u1ef1c quan c\u1ee7a \u1ee9ng d\u1ee5ng theo ch\u01b0\u01a1ng tr\u00ecnh v\u00e0 d\u1ecbch n\u00f3 th\u00e0nh \u0111\u1ecbnh d\u1ea1ng c\u00f3 c\u1ea5u tr\u00fac \u0111\u1ec3 s\u1eed d\u1ee5ng th\u00eam. Screen scraping th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 gi\u1ea3i ph\u00e1p cu\u1ed1i c\u00f9ng do t\u00ednh ph\u1ee9c t\u1ea1p v\u00e0 kh\u1ea3 n\u0103ng d\u1ec5 h\u1ecfng c\u1ee7a n\u00f3, v\u00ec nh\u1eefng thay \u0111\u1ed5i trong giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 l\u00e0m gi\u00e1n \u0111o\u1ea1n qu\u00e1 tr\u00ecnh tr\u00edch xu\u1ea5t.  <\/p>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Thu_thap_du_lieu_web\"><\/span><a href=\"https:\/\/digi-texx.com\/vi\/case-studies\/thu-thap-du-lieu-cao-pho-lich-su-truc-tuyen-voi-giai-phap-web-scraping\/\"><strong>4. Thu th\u1eadp d\u1eef li\u1ec7u web<\/strong><\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>Web scraping l\u00e0 k\u1ef9 thu\u1eadt tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u t\u1eeb c\u00e1c trang web b\u1eb1ng c\u00e1ch ph\u00e2n t\u00edch n\u1ed9i dung HTML c\u1ee7a c\u00e1c trang web. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u1ec3 thu th\u1eadp th\u00f4ng tin t\u1eeb internet, ch\u1eb3ng h\u1ea1n nh\u01b0 gi\u00e1 s\u1ea3n ph\u1ea9m, b\u00e0i vi\u1ebft tin t\u1ee9c ho\u1eb7c n\u1ed9i dung ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n th\u00f4ng x\u00e3 h\u1ed9i. C\u00e1c c\u00f4ng c\u1ee5 web scraping m\u00f4 ph\u1ecfng t\u01b0\u01a1ng t\u00e1c c\u1ee7a con ng\u01b0\u1eddi v\u1edbi c\u00e1c trang web, \u0111i\u1ec1u h\u01b0\u1edbng qua c\u00e1c li\u00ean k\u1ebft v\u00e0 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u c\u00f3 li\u00ean quan \u0111\u1ec3 ph\u00e2n t\u00edch. Tuy nhi\u00ean, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i c\u00e2n nh\u1eafc \u0111\u1ebfn c\u00e1c t\u00e1c \u0111\u1ed9ng v\u1ec1 m\u1eb7t ph\u00e1p l\u00fd v\u00e0 \u0111\u1ea1o \u0111\u1ee9c c\u1ee7a web scraping, v\u00ec m\u1ed9t s\u1ed1 trang web c\u1ea5m tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u t\u1ef1 \u0111\u1ed9ng trong c\u00e1c \u0111i\u1ec1u kho\u1ea3n d\u1ecbch v\u1ee5 c\u1ee7a h\u1ecd.   <\/p>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Khai_thac_bao_cao\"><\/span><strong>5. Khai th\u00e1c b\u00e1o c\u00e1o<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>Khai th\u00e1c b\u00e1o c\u00e1o bao g\u1ed3m vi\u1ec7c tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u t\u1eeb c\u00e1c b\u00e1o c\u00e1o m\u00e0 con ng\u01b0\u1eddi c\u00f3 th\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c, ch\u1eb3ng h\u1ea1n nh\u01b0 PDF, t\u1ec7p HTML ho\u1eb7c t\u00e0i li\u1ec7u v\u0103n b\u1ea3n. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y h\u1eefu \u00edch khi kh\u00f4ng th\u1ec3 truy c\u1eadp tr\u1ef1c ti\u1ebfp v\u00e0o d\u1eef li\u1ec7u c\u01a1 b\u1ea3n v\u00e0 th\u00f4ng tin ch\u1ec9 c\u00f3 th\u1ec3 truy c\u1eadp th\u00f4ng qua c\u00e1c b\u00e1o c\u00e1o \u0111\u01b0\u1ee3c \u0111\u1ecbnh d\u1ea1ng. C\u00e1c c\u00f4ng c\u1ee5 khai th\u00e1c b\u00e1o c\u00e1o ph\u00e2n t\u00edch c\u00e1c t\u00e0i li\u1ec7u n\u00e0y \u0111\u1ec3 truy xu\u1ea5t d\u1eef li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac, cho ph\u00e9p ph\u00e2n t\u00edch s\u00e2u h\u01a1n m\u00e0 kh\u00f4ng c\u1ea7n thay \u0111\u1ed5i h\u1ec7 th\u1ed1ng b\u00e1o c\u00e1o ban \u0111\u1ea7u.  <\/p>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_Trich_xuat_thong_tin\"><\/span><strong>6. Tr\u00edch xu\u1ea5t th\u00f4ng tin<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>Tr\u00edch xu\u1ea5t th\u00f4ng tin (IE) l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh t\u1ef1 \u0111\u1ed9ng tr\u00edch xu\u1ea5t th\u00f4ng tin c\u00f3 c\u1ea5u tr\u00fac t\u1eeb v\u0103n b\u1ea3n phi c\u1ea5u tr\u00fac ho\u1eb7c b\u00e1n c\u1ea5u tr\u00fac. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y s\u1eed d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt x\u1eed l\u00fd ng\u00f4n ng\u1eef t\u1ef1 nhi\u00ean (NLP) \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u00e0 ph\u00e2n lo\u1ea1i c\u00e1c th\u1ef1c th\u1ec3, m\u1ed1i quan h\u1ec7 v\u00e0 s\u1ef1 ki\u1ec7n trong d\u1eef li\u1ec7u v\u0103n b\u1ea3n. IE th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0:  <\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Nh\u1eadn d\u1ea1ng th\u1ef1c th\u1ec3 c\u00f3 t\u00ean (NER):<\/strong> X\u00e1c \u0111\u1ecbnh v\u00e0 ph\u00e2n lo\u1ea1i danh t\u1eeb ri\u00eang trong v\u0103n b\u1ea3n, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u00ean ng\u01b0\u1eddi, t\u1ed5 ch\u1ee9c ho\u1eb7c \u0111\u1ecba \u0111i\u1ec3m (v\u00ed d\u1ee5: tr\u00edch xu\u1ea5t t\u00ean ho\u1eb7c ID t\u1eeb t\u00e0i li\u1ec7u c\u1ee7a nh\u00e2n vi\u00ean)<br\/><strong>Tr\u00edch xu\u1ea5t m\u1ed1i quan h\u1ec7: <\/strong>X\u00e1c \u0111\u1ecbnh m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c th\u1ef1c th\u1ec3 \u0111\u00e3 x\u00e1c \u0111\u1ecbnh, ch\u1eb3ng h\u1ea1n nh\u01b0 k\u1ebft n\u1ed1i \u1ee9ng vi\u00ean v\u1edbi c\u00e1c nh\u00e0 tuy\u1ec3n d\u1ee5ng tr\u01b0\u1edbc \u0111\u00e2y<\/li>\n\n\n\n<li><strong>Tr\u00edch xu\u1ea5t s\u1ef1 ki\u1ec7n: <\/strong>Ph\u00e1t hi\u1ec7n c\u00e1c s\u1ef1 ki\u1ec7n c\u1ee5 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp trong v\u0103n b\u1ea3n, ch\u1eb3ng h\u1ea1n nh\u01b0 giao d\u1ecbch, cu\u1ed9c h\u1ecdp ho\u1eb7c s\u1ef1 c\u1ed1.<\/li>\n<\/ul>\n\n<p>V\u00ed d\u1ee5, trong quy tr\u00ecnh tuy\u1ec3n d\u1ee5ng nh\u00e2n vi\u00ean m\u1edbi, vi\u1ec7c \u00e1p d\u1ee5ng IE \u0111\u00e3 gi\u1ea3m th\u1eddi gian x\u1eed l\u00fd cho m\u1ed7i t\u00e0i li\u1ec7u t\u1eeb 3 ph\u00fat xu\u1ed1ng ch\u1ec9 c\u00f2n 5 gi\u00e2y, \u0111\u1ed3ng th\u1eddi t\u0103ng \u0111\u1ed9 ch\u00ednh x\u00e1c t\u1eeb 60% (nh\u1eadp th\u1ee7 c\u00f4ng) l\u00ean 97% th\u00f4ng qua t\u1ef1 \u0111\u1ed9ng h\u00f3a, ch\u1ee9ng minh r\u1eb1ng vi\u1ec7c tr\u00edch xu\u1ea5t th\u00f4ng tin \u0111\u1eb7c bi\u1ec7t c\u00f3 gi\u00e1 tr\u1ecb trong vi\u1ec7c x\u1eed l\u00fd kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn d\u1eef li\u1ec7u v\u0103n b\u1ea3n v\u00e0 cho ph\u00e9p chuy\u1ec3n \u0111\u1ed5i n\u1ed9i dung phi c\u1ea5u tr\u00fac th\u00e0nh c\u00e1c t\u1eadp d\u1eef li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac \u0111\u1ec3 ph\u00e2n t\u00edch.<\/p>\n\n<p>C\u00e1c k\u1ef9 thu\u1eadt nh\u01b0 khai th\u00e1c v\u0103n b\u1ea3n v\u00e0 thu th\u1eadp d\u1eef li\u1ec7u web \u0111\u00e3 tr\u1edf n\u00ean n\u1ed5i b\u1eadt. Khai th\u00e1c v\u0103n b\u1ea3n li\u00ean quan \u0111\u1ebfn vi\u1ec7c ph\u00e2n t\u00edch v\u0103n b\u1ea3n \u0111\u1ec3 tr\u00edch xu\u1ea5t th\u00f4ng tin c\u00f3 gi\u00e1 tr\u1ecb, s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p nh\u01b0 truy xu\u1ea5t th\u00f4ng tin v\u00e0 x\u1eed l\u00fd ng\u00f4n ng\u1eef t\u1ef1 nhi\u00ean. M\u1eb7t kh\u00e1c, thu th\u1eadp d\u1eef li\u1ec7u web t\u1eadp trung v\u00e0o vi\u1ec7c tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u t\u1eeb c\u00e1c trang web, chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u web kh\u00f4ng c\u00f3 c\u1ea5u tr\u00fac th\u00e0nh c\u00e1c \u0111\u1ecbnh d\u1ea1ng c\u00f3 c\u1ea5u tr\u00fac \u0111\u1ec3 ph\u00e2n t\u00edch.  <\/p>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Phuong_phap_trich_xuat_du_lieu\"><\/span>Ph\u01b0\u01a1ng ph\u00e1p tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Trich_xuat_du_lieu_thu_cong_Trich_xuat_du_lieu_tu_dong\"><\/span>Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u th\u1ee7 c\u00f4ng &amp; Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u t\u1ef1 \u0111\u1ed9ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u th\u1ee7 c\u00f4ng<\/strong><\/td><td><strong>Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u t\u1ef1 \u0111\u1ed9ng<\/strong><\/td><\/tr><tr><td>Bao g\u1ed3m n\u1ed7 l\u1ef1c c\u1ee7a con ng\u01b0\u1eddi trong vi\u1ec7c sao ch\u00e9p v\u00e0 d\u00e1n d\u1eef li\u1ec7u t\u1eeb c\u00e1c ngu\u1ed3n nh\u01b0 t\u00e0i li\u1ec7u, b\u1ea3ng t\u00ednh ho\u1eb7c trang web.<br\/><br\/><strong>T\u1ed1t nh\u1ea5t cho: <\/strong>C\u00e1c t\u00e1c v\u1ee5 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u m\u1ed9t l\u1ea7n, quy m\u00f4 nh\u1ecf.<br\/><br\/><strong>Th\u00e1ch th\u1ee9c:<\/strong> T\u1ed1n th\u1eddi gian, d\u1ec5 x\u1ea3y ra l\u1ed7i v\u00e0 kh\u00f4ng th\u1ec3 m\u1edf r\u1ed9ng quy m\u00f4.<\/td><td>S\u1eed d\u1ee5ng t\u1eadp l\u1ec7nh, ph\u1ea7n m\u1ec1m ho\u1eb7c c\u00f4ng c\u1ee5 d\u1ef1a tr\u00ean AI \u0111\u1ec3 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u t\u1eeb c\u00e1c ngu\u1ed3n c\u00f3 c\u1ea5u tr\u00fac, b\u00e1n c\u1ea5u tr\u00fac v\u00e0 kh\u00f4ng c\u00f3 c\u1ea5u tr\u00fac.<br\/><br\/><strong>T\u1ed1t nh\u1ea5t cho: <\/strong>C\u00e1c t\u00e1c v\u1ee5 tr\u00edch xu\u1ea5t l\u1eb7p \u0111i l\u1eb7p l\u1ea1i, quy m\u00f4 l\u1edbn.<br\/><br\/><strong>Th\u00e1ch th\u1ee9c: <\/strong>Y\u00eau c\u1ea7u ki\u1ebfn \u200b\u200bth\u1ee9c k\u1ef9 thu\u1eadt, c\u00f3 th\u1ec3 c\u1ea7n b\u1ea3o tr\u00ec li\u00ean t\u1ee5c.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cac_cong_cu_trich_xuat_du_lieu_pho_bien\"><\/span>C\u00e1c c\u00f4ng c\u1ee5 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u ph\u1ed5 bi\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>C\u00f3 nhi\u1ec1u c\u00f4ng c\u1ee5 c\u00f3 s\u1eb5n \u0111\u1ec3 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u, t\u1eeb c\u00e1c th\u01b0 vi\u1ec7n ngu\u1ed3n m\u1edf \u0111\u1ebfn c\u00e1c n\u1ec1n t\u1ea3ng c\u1ea5p doanh nghi\u1ec7p.<\/p>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cong_cu_trich_xuat_co_so_du_lieu\"><\/span><strong>C\u00f4ng c\u1ee5 tr\u00edch xu\u1ea5t c\u01a1 s\u1edf d\u1eef li\u1ec7u<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>C\u00f4ng c\u1ee5<\/strong><\/td><td><strong>M\u00f4 T\u1ea3<\/strong><\/td><\/tr><tr><td>T\u00e0i n\u0103ng<\/td><td>C\u00f4ng c\u1ee5 ETL ngu\u1ed3n m\u1edf \u0111\u1ec3 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac.<\/td><\/tr><tr><td>IBM InfoSphere<\/td><td>C\u00f4ng c\u1ee5 t\u00edch h\u1ee3p v\u00e0 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u c\u1ea5p doanh nghi\u1ec7p.<\/td><\/tr><tr><td>D\u1ecbch v\u1ee5 t\u00edch h\u1ee3p SQL Server (SSIS)<\/td><td>C\u00f4ng c\u1ee5 c\u1ee7a Microsoft \u0111\u1ec3 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u t\u1eeb SQL Server.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cong_cu_thu_thap_du_lieu_web\"><\/span><strong>C\u00f4ng c\u1ee5 thu th\u1eadp d\u1eef li\u1ec7u web<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>C\u00f4ng c\u1ee5<\/strong><\/td><td><strong>M\u00f4 T\u1ea3<\/strong><\/td><\/tr><tr><td>BeautifulSoup<\/td><td>Th\u01b0 vi\u1ec7n Python \u0111\u1ec3 ph\u00e2n t\u00edch v\u00e0 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u t\u1eeb HTML v\u00e0 XML.<\/td><\/tr><tr><td>Scrapy<\/td><td>Khung cho vi\u1ec7c thu th\u1eadp d\u1eef li\u1ec7u v\u00e0 khai th\u00e1c d\u1eef li\u1ec7u tr\u00ean web quy m\u00f4 l\u1edbn.<\/td><\/tr><tr><td>Selenium<\/td><td>T\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00e1c t\u01b0\u01a1ng t\u00e1c c\u1ee7a tr\u00ecnh duy\u1ec7t \u0111\u1ec3 thu th\u1eadp th\u00f4ng tin t\u1eeb c\u00e1c trang web \u0111\u1ed9ng.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cong_cu_trich_xuat_du_lieu_dua_tren_API\"><\/span><strong>C\u00f4ng c\u1ee5 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u d\u1ef1a tr\u00ean API<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>C\u00f4ng c\u1ee5<\/strong><\/td><td><strong>M\u00f4 T\u1ea3<\/strong><\/td><\/tr><tr><td>Postman<\/td><td>C\u00f4ng c\u1ee5 ki\u1ec3m tra API cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u t\u1eeb API.<\/td><\/tr><tr><td>RapidAPI<\/td><td>Ch\u1ee3 \u0111\u1ec3 t\u00ecm ki\u1ebfm v\u00e0 t\u00edch h\u1ee3p API.<\/td><\/tr><tr><td>Google Cloud Dataflow<\/td><td>Tr\u00edch xu\u1ea5t v\u00e0 x\u1eed l\u00fd d\u1eef li\u1ec7u t\u1eeb Google API v\u00e0 c\u00e1c ngu\u1ed3n \u0111\u00e1m m\u00e2y.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cong_cu_trich_xuat_du_lieu_OCR_Document\"><\/span><strong>C\u00f4ng c\u1ee5 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u OCR &amp; Document<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>C\u00f4ng c\u1ee5<\/strong><\/td><td><strong>M\u00f4 T\u1ea3<\/strong><\/td><\/tr><tr><td>Tesseract OCR<\/td><td>C\u00f4ng c\u1ee5 ngu\u1ed3n m\u1edf \u0111\u1ec3 tr\u00edch xu\u1ea5t v\u0103n b\u1ea3n t\u1eeb h\u00ecnh \u1ea3nh.<\/td><\/tr><tr><td>Adobe Acrobat<\/td><td>Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u t\u1eeb c\u00e1c t\u1ec7p PDF \u0111\u00e3 qu\u00e9t.<\/td><\/tr><tr><td>Google Cloud Vision API<\/td><td>M\u1ed9t c\u00f4ng c\u1ee5 s\u1eed d\u1ee5ng AI \u0111\u1ec3 tr\u00edch xu\u1ea5t v\u0103n b\u1ea3n v\u00e0 th\u00f4ng tin t\u1eeb h\u00ecnh \u1ea3nh.<\/td><\/tr><tr><td><a href=\"https:\/\/digi-texx.com\/vi\/digi-xtract\/\">DIGI-XTRACT<\/a><\/td><td>Gi\u1ea3i ph\u00e1p tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng b\u1edfi DIGI-TEXX VIETNAM c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf nhu c\u1ea7u can thi\u1ec7p c\u1ee7a con ng\u01b0\u1eddi<\/td><\/tr><\/tbody><\/table><\/figure>\n<style>.kb-image28840_435c82-4f .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image28840_435c82-4f\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/02.-What-is-Data-Extraction-Definition-How-It-Works-Examples-1024x576.jpg\" alt=\"\u0110\u1ecbnh ngh\u0129a tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u l\u00e0 g\u00ec, c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng v\u00e0 v\u00ed d\u1ee5 3\" class=\"kb-img wp-image-28851\" title=\"\" srcset=\"https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/02.-What-is-Data-Extraction-Definition-How-It-Works-Examples-1024x576.jpg 1024w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/02.-What-is-Data-Extraction-Definition-How-It-Works-Examples-300x169.jpg 300w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/02.-What-is-Data-Extraction-Definition-How-It-Works-Examples-768x432.jpg 768w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/02.-What-is-Data-Extraction-Definition-How-It-Works-Examples-1536x864.jpg 1536w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/02.-What-is-Data-Extraction-Definition-How-It-Works-Examples.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>DIGI-XTRACT cho ph\u00e9p <\/figcaption><\/figure><\/div>\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cong_cu_trich_xuat_du_lieu_doanh_nghiep_ETL\"><\/span><strong>C\u00f4ng c\u1ee5 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u doanh nghi\u1ec7p &amp; ETL<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>C\u00f4ng c\u1ee5<\/strong><\/td><td><strong>M\u00f4 T\u1ea3<\/strong><\/td><\/tr><tr><td>Apache Nifi<\/td><td>C\u00f4ng c\u1ee5 ETL ngu\u1ed3n m\u1edf \u0111\u1ec3 di chuy\u1ec3n v\u00e0 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u.<\/td><\/tr><tr><td>Informatica PowerCenter<\/td><td>N\u1ec1n t\u1ea3ng t\u00edch h\u1ee3p v\u00e0 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u c\u1ea5p doanh nghi\u1ec7p.<\/td><\/tr><tr><td>AWS Glue<\/td><td>D\u1ecbch v\u1ee5 ETL d\u1ef1a tr\u00ean \u0111\u00e1m m\u00e2y \u0111\u1ec3 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac v\u00e0 b\u00e1n c\u1ea5u tr\u00fac.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Mo_khoa_suc_manh_cua_du_lieu_Vai_tro_quan_trong_cua_viec_trich_xuat_du_lieu_hieu_qua\"><\/span>M\u1edf kh\u00f3a s\u1ee9c m\u1ea1nh c\u1ee7a d\u1eef li\u1ec7u: Vai tr\u00f2 quan tr\u1ecdng c\u1ee7a vi\u1ec7c tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p><strong>Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u l\u00e0 g\u00ec?<\/strong> \u0110\u00e2y l\u00e0 m\u1ed9t quy tr\u00ecnh c\u01a1 b\u1ea3n cho ph\u00e9p c\u00e1c t\u1ed5 ch\u1ee9c thu th\u1eadp, ph\u00e2n t\u00edch v\u00e0 s\u1eed d\u1ee5ng th\u00f4ng tin c\u00f3 gi\u00e1 tr\u1ecb t\u1eeb nhi\u1ec1u ngu\u1ed3n kh\u00e1c nhau. Cho d\u00f9 tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac t\u1eeb c\u01a1 s\u1edf d\u1eef li\u1ec7u, d\u1eef li\u1ec7u b\u00e1n c\u1ea5u tr\u00fac t\u1eeb API v\u00e0 nh\u1eadt k\u00fd hay d\u1eef li\u1ec7u kh\u00f4ng c\u00f3 c\u1ea5u tr\u00fac t\u1eeb t\u00e0i li\u1ec7u v\u00e0 trang web, c\u00e1c doanh nghi\u1ec7p \u0111\u1ec1u d\u1ef1a v\u00e0o c\u00e1c c\u00f4ng c\u1ee5 v\u00e0 ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau \u0111\u1ec3 h\u1ee3p l\u00fd h\u00f3a quy tr\u00ecnh n\u00e0y. <\/p>\n\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn <strong>k\u1ef9 thu\u1eadt tr\u00edch xu\u1ea5t ph\u00f9 h\u1ee3p<\/strong>, nh\u01b0 th\u1ee7 c\u00f4ng, t\u1ef1 \u0111\u1ed9ng, d\u1ef1a tr\u00ean API, tr\u00edch xu\u1ea5t web ho\u1eb7c OCR, ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1ecbnh d\u1ea1ng d\u1eef li\u1ec7u, kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 nhu c\u1ea7u kinh doanh. C\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 <strong>SQL cho c\u01a1 s\u1edf d\u1eef li\u1ec7u, Scrapy cho tr\u00edch xu\u1ea5t web, Tesseract cho OCR v\u00e0 c\u00e1c gi\u1ea3i ph\u00e1p ETL doanh nghi\u1ec7p nh\u01b0 Talend v\u00e0 AWS Glue<\/strong> gi\u00fap t\u1ef1 \u0111\u1ed9ng tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u \u1edf quy m\u00f4 l\u1edbn. <\/p>\n\n<p>Khi c\u00e1c doanh nghi\u1ec7p ng\u00e0y c\u00e0ng ph\u1ee5 thu\u1ed9c v\u00e0o<strong> d\u1eef li\u1ec7u l\u1edbn, AI v\u00e0 ph\u00e2n t\u00edch th\u1eddi gian th\u1ef1c<\/strong>, vi\u1ec7c tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3 s\u1ebd \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c \u0111\u01b0a ra c\u00e1c quy\u1ebft \u0111\u1ecbnh th\u00f4ng minh h\u01a1n, t\u0103ng c\u01b0\u1eddng t\u1ef1 \u0111\u1ed9ng h\u00f3a v\u00e0 gi\u00e0nh \u0111\u01b0\u1ee3c l\u1ee3i th\u1ebf c\u1ea1nh tranh. \u0110\u1ea7u t\u01b0 v\u00e0o c\u00e1c c\u00f4ng c\u1ee5 v\u00e0 c\u00f4ng ngh\u1ec7 ph\u00f9 h\u1ee3p \u0111\u1ea3m b\u1ea3o<strong> t\u00ednh ch\u00ednh x\u00e1c, hi\u1ec7u qu\u1ea3 v\u00e0 tu\u00e2n th\u1ee7 d\u1eef li\u1ec7u<\/strong>, cu\u1ed1i c\u00f9ng trao quy\u1ec1n cho c\u00e1c t\u1ed5 ch\u1ee9c \u0111\u1ec3 khai th\u00e1c to\u00e0n b\u1ed9 ti\u1ec1m n\u0103ng c\u1ee7a d\u1eef li\u1ec7u. <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/03.-What-is-Data-Extraction-Definition-How-It-Works-Examples-1024x576.jpg\" alt=\"&#x110;&#x1ECB;nh ngh&#x129;a tr&#xED;ch xu&#x1EA5;t d&#x1EEF; li&#x1EC7;u l&#xE0; g&#xEC;, c&#xE1;ch th&#x1EE9;c ho&#x1EA1;t &#x111;&#x1ED9;ng v&#xE0; v&#xED; d&#x1EE5; 3\" class=\"wp-image-28855\" title=\"\" srcset=\"https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/03.-What-is-Data-Extraction-Definition-How-It-Works-Examples-1024x576.jpg 1024w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/03.-What-is-Data-Extraction-Definition-How-It-Works-Examples-300x169.jpg 300w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/03.-What-is-Data-Extraction-Definition-How-It-Works-Examples-768x432.jpg 768w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/03.-What-is-Data-Extraction-Definition-How-It-Works-Examples-1536x864.jpg 1536w, https:\/\/digi-texx.com\/wp-content\/uploads\/2025\/05\/03.-What-is-Data-Extraction-Definition-How-It-Works-Examples.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div><style>.kt-accordion-id28840_f71d47-79 .kt-accordion-inner-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:10px;}.kt-accordion-id28840_f71d47-79 .kt-accordion-panel-inner{border-top:0px solid transparent;border-right:1px solid transparent;border-bottom:1px solid transparent;border-left:1px solid transparent;background:#ffffff;padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-right:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);padding-left:var(--global-kb-spacing-sm, 1.5rem);}.kt-accordion-id28840_f71d47-79 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header{border-top:1px solid #eeeeee;border-right:1px solid #eeeeee;border-bottom:1px solid #eeeeee;border-left:5px solid var(--accent);border-top-left-radius:3px;border-top-right-radius:3px;border-bottom-right-radius:3px;border-bottom-left-radius:3px;background:#ffffff;text-transform:capitalize;color:#444444;padding-top:14px;padding-right:16px;padding-bottom:20px;padding-left:16px;}.kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle )  > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap .kt-blocks-accordion-icon-trigger:after, .kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle )  > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap .kt-blocks-accordion-icon-trigger:before{background:#444444;}.kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-blocks-accordion-icon-trigger{background:#444444;}.kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-blocks-accordion-icon-trigger:after, .kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-blocks-accordion-icon-trigger:before{background:#ffffff;}.kt-accordion-id28840_f71d47-79 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header:hover, \n\t\t\t\tbody:not(.hide-focus-outline) .kt-accordion-id28840_f71d47-79 .kt-blocks-accordion-header:focus-visible{color:#444444;background:#ffffff;border-top-color:var(--accent);border-top-style:solid;border-right-color:var(--accent);border-right-style:solid;border-bottom-color:var(--accent);border-bottom-style:solid;border-left-color:var(--accent);border-left-style:solid;}.kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle ) .kt-accordion-header-wrap .kt-blocks-accordion-header:hover .kt-blocks-accordion-icon-trigger:after, .kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle ) .kt-accordion-header-wrap .kt-blocks-accordion-header:hover .kt-blocks-accordion-icon-trigger:before, body:not(.hide-focus-outline) .kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle ) .kt-blocks-accordion--visible .kt-blocks-accordion-icon-trigger:after, body:not(.hide-focus-outline) .kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle ) .kt-blocks-accordion-header:focus-visible .kt-blocks-accordion-icon-trigger:before{background:#444444;}.kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-accordion-header-wrap .kt-blocks-accordion-header:hover .kt-blocks-accordion-icon-trigger, body:not(.hide-focus-outline) .kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-accordion-header-wrap .kt-blocks-accordion-header:focus-visible .kt-blocks-accordion-icon-trigger{background:#444444;}.kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-accordion-header-wrap .kt-blocks-accordion-header:hover .kt-blocks-accordion-icon-trigger:after, .kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-accordion-header-wrap .kt-blocks-accordion-header:hover .kt-blocks-accordion-icon-trigger:before, body:not(.hide-focus-outline) .kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-accordion-header-wrap .kt-blocks-accordion-header:focus-visible .kt-blocks-accordion-icon-trigger:after, body:not(.hide-focus-outline) .kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-accordion-header-wrap .kt-blocks-accordion-header:focus-visible .kt-blocks-accordion-icon-trigger:before{background:#ffffff;}.kt-accordion-id28840_f71d47-79 .kt-accordion-header-wrap .kt-blocks-accordion-header:focus-visible,\n\t\t\t\t.kt-accordion-id28840_f71d47-79 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header.kt-accordion-panel-active{color:#444444;background:#ffffff;border-top-color:#eeeeee;border-top-style:solid;border-right-color:#eeeeee;border-right-style:solid;border-bottom-color:#eeeeee;border-bottom-style:solid;border-left-color:var(--accent);border-left-style:solid;}.kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle )  > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header.kt-accordion-panel-active .kt-blocks-accordion-icon-trigger:after, .kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle )  > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header.kt-accordion-panel-active .kt-blocks-accordion-icon-trigger:before{background:#444444;}.kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-blocks-accordion-header.kt-accordion-panel-active .kt-blocks-accordion-icon-trigger{background:#444444;}.kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-blocks-accordion-header.kt-accordion-panel-active .kt-blocks-accordion-icon-trigger:after, .kt-accordion-id28840_f71d47-79:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-blocks-accordion-header.kt-accordion-panel-active .kt-blocks-accordion-icon-trigger:before{background:#ffffff;}@media all and (max-width: 1024px){.kt-accordion-id28840_f71d47-79 .kt-accordion-panel-inner{border-top:0px solid transparent;border-right:1px solid transparent;border-bottom:1px solid transparent;border-left:1px solid transparent;}}@media all and (max-width: 1024px){.kt-accordion-id28840_f71d47-79 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header{border-top:1px solid #eeeeee;border-right:1px solid #eeeeee;border-bottom:1px solid #eeeeee;border-left:5px solid var(--accent);}}@media all and (max-width: 1024px){.kt-accordion-id28840_f71d47-79 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header:hover, \n\t\t\t\tbody:not(.hide-focus-outline) .kt-accordion-id28840_f71d47-79 .kt-blocks-accordion-header:focus-visible{border-top-color:var(--accent);border-top-style:solid;border-right-color:var(--accent);border-right-style:solid;border-bottom-color:var(--accent);border-bottom-style:solid;border-left-color:var(--accent);border-left-style:solid;}}@media all and (max-width: 1024px){.kt-accordion-id28840_f71d47-79 .kt-accordion-header-wrap .kt-blocks-accordion-header:focus-visible,\n\t\t\t\t.kt-accordion-id28840_f71d47-79 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header.kt-accordion-panel-active{border-top-color:#eeeeee;border-top-style:solid;border-right-color:#eeeeee;border-right-style:solid;border-bottom-color:#eeeeee;border-bottom-style:solid;border-left-color:var(--accent);border-left-style:solid;}}@media all and (max-width: 767px){.kt-accordion-id28840_f71d47-79 .kt-accordion-inner-wrap{display:block;}.kt-accordion-id28840_f71d47-79 .kt-accordion-inner-wrap .kt-accordion-pane:not(:first-child){margin-top:10px;}.kt-accordion-id28840_f71d47-79 .kt-accordion-panel-inner{border-top:0px solid transparent;border-right:1px solid transparent;border-bottom:1px solid transparent;border-left:1px solid transparent;}.kt-accordion-id28840_f71d47-79 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header{border-top:1px solid #eeeeee;border-right:1px solid #eeeeee;border-bottom:1px solid #eeeeee;border-left:5px solid var(--accent);}.kt-accordion-id28840_f71d47-79 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header:hover, \n\t\t\t\tbody:not(.hide-focus-outline) .kt-accordion-id28840_f71d47-79 .kt-blocks-accordion-header:focus-visible{border-top-color:var(--accent);border-top-style:solid;border-right-color:var(--accent);border-right-style:solid;border-bottom-color:var(--accent);border-bottom-style:solid;border-left-color:var(--accent);border-left-style:solid;}.kt-accordion-id28840_f71d47-79 .kt-accordion-header-wrap .kt-blocks-accordion-header:focus-visible,\n\t\t\t\t.kt-accordion-id28840_f71d47-79 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header.kt-accordion-panel-active{border-top-color:#eeeeee;border-top-style:solid;border-right-color:#eeeeee;border-right-style:solid;border-bottom-color:#eeeeee;border-bottom-style:solid;border-left-color:var(--accent);border-left-style:solid;}}<\/style>\n<div class=\"wp-block-kadence-accordion alignnone\"><div class=\"kt-accordion-wrap kt-accordion-id28840_f71d47-79 kt-accordion-has-11-panes kt-active-pane-0 kt-accordion-block kt-pane-header-alignment-left kt-accodion-icon-style-arrow kt-accodion-icon-side-right\" style=\"max-width:none\"><div class=\"kt-accordion-inner-wrap\" data-allow-multiple-open=\"false\" data-start-open=\"none\">\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-1 kt-pane28840_f19a7c-5c\" id=\"article-sources\"><h3 class=\"kt-accordion-header-wrap\"><span class=\"ez-toc-section\" id=\"Nguon_tham_khao\"><\/span><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">Ngu\u1ed3n tham kh\u1ea3o<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><span class=\"ez-toc-section-end\"><\/span><\/h3><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<ol class=\"wp-block-list\">\n<li>EIN News, \u201cData Extraction Market Continues to Grow with US$ $5.3 Billion Valuation and 5.73% CAGR by 2030,\u201d<br\/><a href=\"https:\/\/www.einnews.com\/pr_news\/768534797\/data-extraction-market-continues-to-grow-with-us-5-3-billion-valuation-and-5-73-cagr-by-2030\" target=\"_blank\" rel=\"noopener\">https:\/\/www.einnews.com\/pr_news\/768534797\/data-extraction-market-continues-to-grow-with-us-5-3-billion-valuation-and-5-73-cagr-by-2030<\/a><\/li>\n<\/ol>\n<\/div><\/div><\/div>\n<\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Kh\u1ea3 n\u0103ng tr\u00edch xu\u1ea5t v\u00e0 khai th\u00e1c th\u00f4ng tin hi\u1ec7u qu\u1ea3 l\u00e0 t\u1ed1i quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c t\u1ed5 ch\u1ee9c trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u l\u00e0 g\u00ec? \u0110\u1ecbnh ngh\u0129a, c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng v\u00e0 v\u00ed d\u1ee5\" class=\"read-more button\" href=\"https:\/\/digi-texx.com\/vi\/techblog-vi\/trich-xuat-du-lieu-la-gi-dinh-nghia-cach-thuc-hoat-dong-va-vi-du\/#more-29644\" aria-label=\"Read more about Tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u l\u00e0 g\u00ec? \u0110\u1ecbnh ngh\u0129a, c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng v\u00e0 v\u00ed d\u1ee5\">Read More<\/a><\/p>\n","protected":false},"author":3,"featured_media":28850,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[50],"tags":[],"class_list":["post-29644","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-techblog-vi","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-33"],"acf":[],"_links":{"self":[{"href":"https:\/\/digi-texx.com\/vi\/wp-json\/wp\/v2\/posts\/29644","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/digi-texx.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/digi-texx.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/digi-texx.com\/vi\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/digi-texx.com\/vi\/wp-json\/wp\/v2\/comments?post=29644"}],"version-history":[{"count":0,"href":"https:\/\/digi-texx.com\/vi\/wp-json\/wp\/v2\/posts\/29644\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/digi-texx.com\/vi\/wp-json\/wp\/v2\/media\/28850"}],"wp:attachment":[{"href":"https:\/\/digi-texx.com\/vi\/wp-json\/wp\/v2\/media?parent=29644"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/digi-texx.com\/vi\/wp-json\/wp\/v2\/categories?post=29644"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/digi-texx.com\/vi\/wp-json\/wp\/v2\/tags?post=29644"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}