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Tuy nhi\u00ean, c\u00f4ng c\u1ee5 k\u1ebft n\u1ed1i \u0111\u1eafc l\u1ef1c nh\u1ea5t gi\u00fap Greenplum bi\u1ebfn c\u00e1c t\u1ec7p tin b\u00ean ngo\u00e0i th\u00e0nh \"m\u1ed9t ph\u1ea7n c\u1ee7a c\u01a1 s\u1edf d\u1eef li\u1ec7u\" ch\u00ednh l\u00e0 h\u1ec7 th\u1ed1ng External Tables (B\u1ea3ng ngo\u00e0i).\n\nTrong c\u00e1c c\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7 truy\u1ec1n th\u1ed1ng, \u0111\u1ec3 ph\u00e2n t\u00edch m\u1ed9t file CSV dung l\u01b0\u1ee3ng l\u1edbn, b\u1ea1n b\u1eaft bu\u1ed9c ph\u1ea3i t\u1ea1o b...","published_at":"2026-10-25T09:47:31.000000Z","scheduled_publish_at":null,"is_shared":false,"updated_at":"2026-10-25T11:30:03.000000Z","edited_at":"2026-10-24T08:27:27.000000Z","translation_source":null,"trend_at":null,"promoted_at":null,"reading_time":6,"organization_pinned_at":null,"profile_pin_position":null,"points":0,"views_count":7,"clips_count":0,"comments_count":0,"rated_value":null,"promoted":false,"trending":false,"is_video":false,"thumbnail_url":"https:\/\/images.viblo.asia\/7c7b4bc1-4051-4a2c-af14-05c9ab9e9556.png","user":{"data":{"id":182732,"url":"https:\/\/viblo.asia\/u\/Hieumn","avatar":"b79a0c92-fb82-49df-bda1-2f51c8e45300.jpg","name":"Nguyen Hoang","username":"Hieumn","followers_count":0,"reputation":2,"posts_count":50,"banned_at":null,"level_partner":null,"following":false}},"tags":{"data":[{"slug":"cloud-database","name":"cloud database"}]},"commentators":{"data":[]}},{"id":109602,"title":"Greenplum Database B\u00e0i h\u1ecdc 21: Ki\u1ebfn tr\u00fac gpfdist: Ph\u00e1 v\u1ee1 n\u00fat th\u1eaft c\u1ed5 chai \u1edf Master b\u1eb1ng c\u00e1ch n\u1ea1p song song tr\u1ef1c ti\u1ebfp v\u00e0o c\u00e1c Segment","slug":"kNLr3elWVgA","url":"https:\/\/viblo.asia\/p\/greenplum-database-bai-hoc-21-kien-truc-gpfdist-pha-vo-nut-that-co-chai-o-master-bang-cach-nap-song-song-truc-tiep-vao-cac-segment-kNLr3elWVgA","user_id":182732,"transliterated":"greenplum-database-bai-hoc-21-kien-truc-gpfdist-pha-vo-nut-that-co-chai-o-master-bang-cach-nap-song-song-truc-tiep-vao-cac-segment","contents_short":"\u1ede B\u00e0i h\u1ecdc 20, ch\u00fang ta \u0111\u00e3 th\u1ea5y l\u1ec7nh COPY truy\u1ec1n th\u1ed1ng gi\u00fap n\u1ea1p d\u1eef li\u1ec7u nhanh h\u01a1n INSERT r\u1ea5t nhi\u1ec1u, nh\u01b0ng l\u1ea1i m\u1eafc ph\u1ea3i m\u1ed9t \"t\u1eed huy\u1ec7t\" ch\u00ed m\u1ea1ng:  To\u00e0n b\u1ed9 t\u1ec7p d\u1eef li\u1ec7u kh\u1ed5ng l\u1ed3 b\u1eaft bu\u1ed9c ph\u1ea3i \u0111i qua Master Node. Master Node ph\u1ea3i g\u00e1nh v\u00e1c to\u00e0n b\u1ed9 c\u00f4ng vi\u1ec7c ph\u00e2n t\u00edch, t\u00ednh to\u00e1n h\u00e0m b\u0103m (Hash) v\u00e0 ph\u00e2n ph\u1ed1i xu\u1ed1ng c\u00e1c Segment, nhanh ch\u00f3ng tr\u1edf th\u00e0nh n\u00fat th\u1eaft c\u1ed5 chai ph\u1ea7n c\u1ee9ng khi \u0111\u1ed1i m\u1eb7t v\u1edbi d\u1eef li\u1ec7u h\u00e0ng ...","published_at":"2026-10-25T09:47:24.000000Z","scheduled_publish_at":null,"is_shared":false,"updated_at":"2026-10-25T11:31:02.000000Z","edited_at":"2026-10-24T08:26:44.000000Z","translation_source":null,"trend_at":null,"promoted_at":null,"reading_time":7,"organization_pinned_at":null,"profile_pin_position":null,"points":0,"views_count":5,"clips_count":0,"comments_count":0,"rated_value":null,"promoted":false,"trending":false,"is_video":false,"thumbnail_url":"https:\/\/images.viblo.asia\/c99a0554-17f7-4b20-aeb9-129d3872a087.png","user":{"data":{"id":182732,"url":"https:\/\/viblo.asia\/u\/Hieumn","avatar":"b79a0c92-fb82-49df-bda1-2f51c8e45300.jpg","name":"Nguyen Hoang","username":"Hieumn","followers_count":0,"reputation":2,"posts_count":50,"banned_at":null,"level_partner":null,"following":false}},"tags":{"data":[{"slug":"cloud-database","name":"cloud database"}]},"commentators":{"data":[]}},{"id":109601,"title":"Greenplum Database B\u00e0i h\u1ecdc 20: L\u1ec7nh COPY trong Greenplum: C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng v\u00e0 gi\u1edbi h\u1ea1n c\u1ee7a vi\u1ec7c n\u1ea1p d\u1eef li\u1ec7u qua Master","slug":"pPLkNQWyJRZ","url":"https:\/\/viblo.asia\/p\/greenplum-database-bai-hoc-20-lenh-copy-trong-greenplum-co-che-hoat-dong-va-gioi-han-cua-viec-nap-du-lieu-qua-master-pPLkNQWyJRZ","user_id":182732,"transliterated":"greenplum-database-bai-hoc-20-lenh-copy-trong-greenplum-co-che-hoat-dong-va-gioi-han-cua-viec-nap-du-lieu-qua-master","contents_short":"\u1ede B\u00e0i h\u1ecdc 19, ch\u00fang ta \u0111\u00e3 ch\u1ec9 ra r\u1eb1ng vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c c\u00e2u l\u1ec7nh INSERT INTO \u0111\u01a1n l\u1ebb l\u00e0 \"c\u1ebb th\u00f9\" l\u00e0m ki\u1ec7t qu\u1ec7 t\u00e0i nguy\u00ean c\u1ee7a Master Node v\u00e0 l\u00e0m ngh\u1ebdn m\u1ea1ng Interconnect trong ki\u1ebfn tr\u00fac MPP. V\u1eady c\u00e2u h\u1ecfi \u0111\u1eb7t ra l\u00e0:  C\u00e1ch ti\u00eau chu\u1ea9n \u0111\u1ea7u ti\u00ean \u0111\u1ec3 n\u1ea1p d\u1eef li\u1ec7u h\u00e0ng lo\u1ea1t (Bulk Load) v\u00e0o Greenplum l\u00e0 g\u00ec?\n\nC\u00e2u tr\u1ea3 l\u1eddi ch\u00ednh l\u00e0 l\u1ec7nh COPY (b\u1eaft ngu\u1ed3n t\u1eeb PostgreSQL). Trong b\u00e0i h\u1ecdc n\u00e0y, ch\u00fang ta s\u1ebd m\u1ed5 x\u1ebb c\u01a1 ch\u1ebf ...","published_at":"2026-10-25T09:47:15.000000Z","scheduled_publish_at":null,"is_shared":false,"updated_at":"2026-10-25T11:32:01.000000Z","edited_at":"2026-10-24T08:26:04.000000Z","translation_source":null,"trend_at":null,"promoted_at":null,"reading_time":7,"organization_pinned_at":null,"profile_pin_position":null,"points":0,"views_count":5,"clips_count":0,"comments_count":0,"rated_value":null,"promoted":false,"trending":false,"is_video":false,"thumbnail_url":"https:\/\/images.viblo.asia\/2e015342-b77a-41e3-895f-4e41944f49e3.png","user":{"data":{"id":182732,"url":"https:\/\/viblo.asia\/u\/Hieumn","avatar":"b79a0c92-fb82-49df-bda1-2f51c8e45300.jpg","name":"Nguyen Hoang","username":"Hieumn","followers_count":0,"reputation":2,"posts_count":50,"banned_at":null,"level_partner":null,"following":false}},"tags":{"data":[{"slug":"cloud-database","name":"cloud 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Tuy nhi\u00ean, Dijkstra c\u00f3 m\u1ed9t \u0111i\u1ec3m y\u1ebfu ch\u00ed m\u1ea1ng: N\u00f3 b\u1ecb \"m\u00f9\". Dijkstra lan t\u1ecfa s\u1ef1 t\u00ecm ki\u1ebfm ra m\u1ecdi h\u01b0\u1edbng theo h\u00ecnh tr\u00f2n gi\u1ed1ng nh\u01b0 vi\u1ec7c n\u00e9m m\u1ed9t h\u00f2n \u0111\u00e1 xu\u1ed1ng h\u1ed3 n\u01b0\u1edbc. 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Tuy nhi\u00ean, trong th\u1ef1c t\u1ebf k\u1ef9 thu\u1eadt t\u1ea1i Hasaki ho\u1eb7c h\u1ec7 th\u1ed1ng v\u00e9 t\u1ef1 \u0111\u1ed9ng (AFC) c\u1ee7a tuy\u1ebfn Metro, b\u1ea1n th\u01b0\u1eddng ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi \u0111\u1ed3 th\u1ecb \u0111\u1ed9ng \u2014 n\u01a1i c\u00e1c k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c tr\u1ea1m ho\u1eb7c m\u1ea1ng l\u01b0\u1edbi m\u00e1y ch\u1ee7 li\u00ean t\u1ee5c \u0111\u01b0\u1ee3c th\u00eam v\u00e0o.\n\nL\u00e0m sao \u0111\u1ec3 bi\u1ebft Tr\u1ea1m A v\u00e0 Tr\u1ea1m B \u0111\u00e3 th\u00f4ng m\u1ea1ng v\u1edbi nhau hay ch\u01b0a? 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X\u00e1c th\u1ef1c quy\u1ec1n h\u1ea1n ng\u01b0\u1eddi d\u00f9ng theo m\u00f4 h\u00ecnh Ph\u00e2n quy\u1ec1n D\u1ef1a tr\u00ean Vai tr\u00f2 (Role-Based Access Control \u2013 RBAC).\n\nTrong k\u1ef9 thu\u1eadt ph\u1ea7n m\u1ec1m t...","published_at":"2026-10-25T03:00:59.000000Z","scheduled_publish_at":null,"is_shared":false,"updated_at":"2026-10-25T08:45:03.000000Z","edited_at":"2026-10-25T03:00:57.000000Z","translation_source":null,"trend_at":null,"promoted_at":null,"reading_time":6,"organization_pinned_at":null,"profile_pin_position":null,"points":0,"views_count":9,"clips_count":0,"comments_count":0,"rated_value":null,"promoted":false,"trending":false,"is_video":false,"thumbnail_url":"https:\/\/images.viblo.asia\/997306ce-ffff-4f67-b4f5-eed33fb0fc01.png","user":{"data":{"id":98149,"url":"https:\/\/viblo.asia\/u\/khanhdp","avatar":"575b77c7-6bda-4554-8d90-9fbf61a5ccaa.jpg","name":"D\u01b0\u01a1ng Ph\u00fac Kh\u00e1nh","username":"khanhdp","followers_count":0,"reputation":0,"posts_count":0,"banned_at":null,"level_partner":null,"following":false}},"tags":{"data":[{"slug":"architecture","name":"architecture"},{"slug":"backend","name":"Backend"},{"slug":"performance","name":"Performance"},{"slug":"postgres","name":"Postgres"}]},"commentators":{"data":[]}}],"meta":{"pagination":{"total":47527,"count":20,"per_page":20,"current_page":1,"total_pages":2377,"links":{"next":"http:\/\/viblo.asia\/posts\/newest?page=2"}}}}