{"id":724,"date":"2025-07-31T00:26:00","date_gmt":"2025-07-30T16:26:00","guid":{"rendered":"http:\/\/www.applicationsofllm.com\/?p=724"},"modified":"2025-09-17T00:28:08","modified_gmt":"2025-09-16T16:28:08","slug":"etl-vs-elt%ef%bc%9a%e8%b0%81%e6%89%8d%e6%98%af%e4%bc%81%e4%b8%9a%e6%9e%b6%e6%9e%84%e7%9a%84%e6%9c%80%e4%bc%98%e8%a7%a3%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/www.applicationsofllm.com\/index.php\/2025\/07\/31\/etl-vs-elt%ef%bc%9a%e8%b0%81%e6%89%8d%e6%98%af%e4%bc%81%e4%b8%9a%e6%9e%b6%e6%9e%84%e7%9a%84%e6%9c%80%e4%bc%98%e8%a7%a3%ef%bc%9f\/","title":{"rendered":"ETL VS ELT\uff1a\u8c01\u624d\u662f\u4f01\u4e1a\u67b6\u6784\u7684\u6700\u4f18\u89e3\uff1f"},"content":{"rendered":"\n<p><strong>\u4e00\u3001ETL\u4e0eELT\u662f\u4ec0\u4e48<\/strong><\/p>\n\n\n\n<p>\u5f53\u4f01\u4e1a\u9762\u4e34\u6784\u5efa\u6570\u636e\u5206\u6790\u5e73\u53f0\u7684\u5173\u952e\u51b3\u7b56\u65f6\uff0c\u4e00\u4e2a\u57fa\u7840\u4f46\u81f3\u5173\u91cd\u8981\u7684\u95ee\u9898\u5e38\u88ab\u63d0\u51fa\uff1aETL\u8fd8\u662fELT\uff1f \u8981\u7406\u89e3\u8fd9\u4e2a\u9009\u62e9\u7684\u4ef7\u503c\uff0c\u9996\u5148\u5fc5\u987b\u5398\u6e05\u4e24\u8005\u7684\u8fd0\u4f5c\u672c\u8d28\u3002<\/p>\n\n\n\n<p><strong>1.ETL (Extract-Transform-Load)<\/strong><\/p>\n\n\n\n<p>\uff081\uff09<strong>\u6838\u5fc3\u6d41\u7a0b<\/strong>\uff1a\u9996\u5148\u4ece\u5404\u6e90\u5934\u7cfb\u7edf\u63d0\u53d6\uff08E\uff09\u539f\u59cb\u6570\u636e\uff0c\u968f\u540e\u5728\u4f20\u7edf\u6570\u4ed3\u670d\u52a1\u5668\u3001\u4e13\u7528 ETL \u670d\u52a1\u5668\u7b49\u72ec\u7acb\u5904\u7406\u5f15\u64ce\u4e2d\uff0c\u8fdb\u884c\u96c6\u4e2d\u6e05\u6d17\u3001\u8f6c\u6362\uff08T\uff09\uff0c\u8fd9\u5176\u4e2d\u5305\u62ec\u7c7b\u578b\u8f6c\u6362\u3001\u8fc7\u6ee4\u3001\u8fde\u63a5\u3001\u805a\u5408\u7b49\u64cd\u4f5c\uff0c\u6700\u7ec8\u5c06\u52a0\u5de5\u597d\u7684\u7ed3\u6784\u5316\u6570\u636e\u52a0\u8f7d\uff08L\uff09\u5230\u76ee\u6807\u6570\u636e\u4ed3\u5e93\u6216\u6570\u636e\u6e56\u3002<\/p>\n\n\n\n<p>\uff082\uff09<strong>\u6570\u636e\u5904\u7406\u4f4d\u7f6e<\/strong>\uff1a\u201cT\u201d\uff08\u8f6c\u6362\uff09\u53d1\u751f\u5728\u52a0\u8f7d\u5230\u76ee\u6807\u5b58\u50a8\u4e4b\u524d\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"601\" src=\"http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-141-1024x601.jpg\" alt=\"\" class=\"wp-image-727\" srcset=\"http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-141-1024x601.jpg 1024w, http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-141-300x176.jpg 300w, http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-141-768x451.jpg 768w, http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-141.jpg 1108w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><strong>2.ELT (Extract-Load-Transform)<\/strong><\/p>\n\n\n\n<p>\uff081\uff09<strong>\u6838\u5fc3\u6d41\u7a0b<\/strong>\uff1a\u540c\u6837\u4ece\u6e90\u5934\u63d0\u53d6\uff08E\uff09\u6570\u636e\uff0c\u4f46\u968f\u540e\u76f4\u63a5\u52a0\u8f7d\uff08L\uff09\u6216\u4ec5\u7b80\u5355\u7f13\u51b2\u539f\u59cb\u6570\u636e\u5230\u76ee\u6807\u7cfb\u7edf\uff0c\u901a\u5e38\u662f\u5177\u5907\u5f3a\u5927\u8ba1\u7b97\u80fd\u529b\u7684\u4e91\u6570\u636e\u4ed3\u5e93\u6216\u5206\u5e03\u5f0f\u5b58\u50a8\u3002\u5728\u6b64\u76ee\u6807\u7cfb\u7edf\u5185\u90e8\u5b8c\u6210\u6838\u5fc3\u7684\u6e05\u6d17\u4e0e\u8f6c\u6362\uff08T\uff09\u5de5\u4f5c\u3002<\/p>\n\n\n\n<p>\uff082\uff09<strong>\u6570\u636e\u5904\u7406\u4f4d\u7f6e<\/strong>\uff1a\u201cT\u201d\uff08\u8f6c\u6362\uff09\u53d1\u751f\u5728\u52a0\u8f7d\u5230\u76ee\u6807\u5b58\u50a8\u4e4b\u540e\uff0c\u5229\u7528\u76ee\u6807\u7cfb\u7edf\u7684\u8ba1\u7b97\u80fd\u529b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"250\" src=\"http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-142-1024x250.jpg\" alt=\"\" class=\"wp-image-728\" srcset=\"http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-142-1024x250.jpg 1024w, http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-142-300x73.jpg 300w, http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-142-768x187.jpg 768w, http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-142.jpg 1107w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><strong>\u4e8c\u3001ETL vs ELT \u7684\u7ef4\u5ea6\u5bf9\u6bd4<\/strong><\/p>\n\n\n\n<p>\u5728\u4e86\u89e3\u4e86ETL\u4e0eELT\u7684\u57fa\u672c\u5b9a\u4e49\u540e\uff0c\u6211\u4eec\u518d\u6765\u770b\u4e00\u4e0b\u5b83\u4eec\u5728\u4e0d\u540c\u7ef4\u5ea6\u4e0a\u7684\u5bf9\u6bd4\u3002\u8fd9\u91cc\u6211\u505a\u4e86\u4e00\u5f20\u5bf9\u6bd4\u56fe\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5927\u5bb6\u66f4\u76f4\u89c2\u5730\u770b\u6e05\u695a\u4e24\u8005\u7684\u5dee\u5f02\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"653\" src=\"http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-146-1024x653.jpg\" alt=\"\" class=\"wp-image-732\" srcset=\"http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-146-1024x653.jpg 1024w, http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-146-300x191.jpg 300w, http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-146-768x490.jpg 768w, http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-146.jpg 1107w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><strong>\u4e09\u30012025\u5e74\u7684ETL\u548cELT\u5bf9\u6bd410\u5e74\u524d\u7684\u6700\u5927\u533a\u522b<\/strong><\/p>\n\n\n\n<p>\u4e0e10\u5e74\u524d\u7684\u6280\u672f\u72b6\u6001\u76f8\u6bd4\uff0c2025\u5e74\u7684ETL\u548cELT\u5df2\u7ecf\u56e0\u4e09\u5927\u6280\u672f\u53d8\u9769\u800c\u53d1\u751f\u4e00\u4e9b\u53d8\u5316\uff1a<\/p>\n\n\n\n<p><strong>1.\u4e91\u6570\u4ed3\u7684\u538b\u5012\u6027\u4e3b\u6d41\u5316<\/strong><\/p>\n\n\n\n<p>\uff081\uff09<strong>\u8fc7\u53bb<\/strong>\uff082015\u5e74\uff09\uff1a\u672c\u5730\u7269\u7406\u670d\u52a1\u5668\u90e8\u7f72\u4e3a\u4e3b\uff0c\u8ba1\u7b97\u8d44\u6e90\u6269\u5c55\u7b28\u91cd\uff0c\u5b58\u50a8\u8ba1\u7b97\u7d27\u8026\u5408\u5bfc\u81f4\u6027\u80fd\u74f6\u9888\u666e\u904d\u5b58\u5728\u3002<\/p>\n\n\n\n<p>\uff082\uff09<strong>\u73b0\u5728<\/strong>\uff082025\u5e74\uff09\uff1a\u8d85\u8fc790%\u7684\u65b0\u5efa\u5206\u6790\u7cfb\u7edf\u91c7\u7528\u4e91\u6570\u4ed3\uff0c\u5982Snowflake\u3001BigQuery\u3001Redshift\u3001Databricks\u7b49\u3002\u5b58\u50a8\u4e0e\u8ba1\u7b97\u8d44\u6e90\u79d2\u7ea7\u89e3\u8026\/\u5f39\u6027\u4f38\u7f29\u6210\u4e3a\u57fa\u7840\u80fd\u529b\uff0c\u5b58\u7b97\u6210\u672c\u4e0d\u518d\u7ebf\u6027\u6346\u7ed1\uff0c\u201c\u6570\u636e\u52a0\u8f7d\u540e\u5904\u7406\u201d\u7684ELT\u6a21\u5f0f\u5728\u7ecf\u6d4e\u6027\u4e0e\u6027\u80fd\u4e0a\u5177\u5907\u538b\u5012\u6027\u4f18\u52bf\u3002<\/p>\n\n\n\n<p>\u6211\u5728\u642d\u5efa\u6570\u636e\u4ed3\u5e93\u65f6\u5e38\u5e38\u9009\u62e9FineDataLink\u4f5c\u4e3aETL\u5de5\u5177\uff0c<strong>\u5b83\u5177\u6709\u5f3a\u5927\u7684ETL\u8c03\u5ea6\u5668\u548c\u5f15\u64ce\uff0c\u53ef\u4ee5\u5feb\u901f\u5730\u4ece\u4e0d\u540c\u6765\u6e90\u7684\u6570\u636e\u6e90\u4e2d\u62bd\u53d6\u3001\u8f6c\u6362\u548c\u52a0\u8f7d\u6570\u636e<\/strong>\uff0c\u5927\u5927\u7f29\u77ed\u4e86\u6570\u636e\u5904\u7406\u7684\u65f6\u95f4\u3002\u540c\u65f6\u63d0\u4f9b\u4e86\u53ef\u89c6\u5316\u754c\u9762\u548c\u9884\u5b9a\u4e49\u6a21\u677f\uff0c\u53ef\u4ee5\u5feb\u901f\u5730\u914d\u7f6e\u548c\u7ba1\u7406ETL\u6d41\u7a0b\uff0c\u5e76\u4e14\u63d0\u4f9b\u8be6\u7ec6\u7684\u65e5\u5fd7\u548c\u62a5\u544a\u4fe1\u606f\u3002<strong>\u70b9\u51fb\u6587\u672b\u201c\u9605\u8bfb\u539f\u6587\u201d\u5373\u53ef\u62a2\u5148\u4f53\u9a8c<\/strong>\uff0c\u5927\u5bb6\u53ef\u4ee5\u770b\u770b\u662f\u4e0d\u662f\u50cf\u6211\u8bf4\u7684\u8fd9\u4e48\u597d\u7528\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"501\" src=\"http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-144-1024x501.jpg\" alt=\"\" class=\"wp-image-730\" srcset=\"http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-144-1024x501.jpg 1024w, http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-144-300x147.jpg 300w, http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-144-768x376.jpg 768w, http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-144.jpg 1108w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><strong>2.\u5206\u5e03\u5f0f\u5f15\u64ce\u7684\u6df1\u5ea6\u8fdb\u5316<\/strong><\/p>\n\n\n\n<p>\uff081\uff09<strong>\u8fc7\u53bb<\/strong>\uff082015\u5e74\uff09\uff1aMapReduce\uff08Hadoop\uff09\u4e3b\u5bfc\uff0c\u590d\u6742\u8ba1\u7b97\u9700\u5197\u957f\u7f16\u7a0b\uff1bMPP\u67b6\u6784\u521a\u8d77\u6b65\u3002<\/p>\n\n\n\n<p>\uff082\uff09<strong>\u73b0\u5728<\/strong>\uff082025\u5e74\uff09\uff1aSpark\u6210\u4e3a\u7edf\u4e00\u8ba1\u7b97\u5f15\u64ce\uff0c\u5b83\u6df1\u5ea6\u652f\u6301\u5927\u89c4\u6a21\u5185\u5b58\u8ba1\u7b97\u3001DAG\u4f18\u5316\u53caPython\/SQL\/\u6d41\u5904\u7406\uff0c\u4f7fTB\u7ea7\u6570\u636e\u5728\u5206\u5e03\u5f0f\u73af\u5883\u4e2d\u7684\u8f6c\u6362\u6548\u7387\u5927\u5927\u63d0\u5347\u3002ETL\u5de5\u5177\u4e5f\u6f14\u5316\u4e3a\u517c\u5bb9\u591a\u79cd\u8fd0\u884c\u73af\u5883\u7684\u7f16\u6392\u5c42\uff0cFineDataLink<strong>\u96c6\u5b9a\u65f6\/\u5b9e\u65f6\u540c\u6b65\u3001\u6570\u636e\u5f00\u53d1\u3001\u6570\u636e\u8c03\u5ea6\u3001\u6570\u636e\u670d\u52a1\u3001\u8fd0\u7ef4\u7b49\u4e3a\u4e00\u4f53\uff0c\u4e00\u4e2a\u5de5\u5177\u5c31\u53ef\u4ee5\u89e3\u51b3\u6570\u636e\u5728\u4efb\u610f\u6570\u636e\u7ec8\u7aef\u95f4\u7684\u4f20\u8f93\u3001\u5904\u7406\u95ee\u9898<\/strong>\uff0c\u65b9\u4fbf\u597d\u7528\u3002<\/p>\n\n\n\n<p><strong>3.\u5b9e\u65f6\u6570\u636e\u7ba1\u9053\u7684\u5e38\u6001\u5316\u9700\u6c42<\/strong><\/p>\n\n\n\n<p>\uff081\uff09<strong>\u8fc7\u53bb<\/strong>\uff082015\u5e74\uff09\uff1a\u201cT+1\u201d\uff08\u9694\u5929\u53ef\u89c1\uff09\u662f\u4e3b\u6d41\u8282\u594f\uff0c\u51c6\u5b9e\u65f6\u5904\u7406\u5c5e\u4e8e\u524d\u6cbf\u63a2\u7d22\u3002<\/p>\n\n\n\n<p>\uff082\uff09<strong>\u73b0\u5728<\/strong>\uff082025\u5e74\uff09\uff1a\u5206\u949f\u7ea7\u3001\u79d2\u7ea7\u5ef6\u8fdf\u6210\u4e3a\u6807\u914d\u4e1a\u52a1\u9700\u6c42\u3002Flink\u3001RisingWave\u7b49\u6d41\u5904\u7406\u5f15\u64ce\u652f\u6491\u771f\u6b63\u7684ELT\uff08\u5b9e\u65f6ELT\uff09\uff0c\u76f4\u63a5\u5bf9\u6570\u636e\u6d41\u8fdb\u884c\u6301\u7eed\u8f6c\u6362\u3002\u901a\u8fc7 FineDataLink&nbsp;<strong>\u914d\u7f6e Kafka \u6d88\u606f\u961f\u5217\uff0c\u53ef\u4ee5\u5c06\u4f20\u611f\u5668\u6570\u636e\u5b9e\u65f6\u53d1\u9001\u5230 Kafka \u4e3b\u9898\u4e2d\u3002\u6570\u636e\u5206\u6790\u5e73\u53f0\u8ba2\u9605\u8be5\u4e3b\u9898\uff0c\u5b9e\u65f6\u83b7\u53d6\u4f20\u611f\u5668\u6570\u636e<\/strong>\u3002\u8fd9\u6837\u53ef\u4ee5\u5b9e\u73b0\u6570\u636e\u7684\u5b9e\u65f6\u4f20\u8f93\u548c\u5904\u7406\uff0c\u53ca\u65f6\u53d1\u73b0\u751f\u4ea7\u8fc7\u7a0b\u4e2d\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"372\" src=\"http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-143-1024x372.jpg\" alt=\"\" class=\"wp-image-729\" srcset=\"http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-143-1024x372.jpg 1024w, http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-143-300x109.jpg 300w, http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-143-768x279.jpg 768w, http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-143.jpg 1108w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" 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class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"528\" src=\"http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-147-1024x528.jpg\" alt=\"\" class=\"wp-image-734\" srcset=\"http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-147-1024x528.jpg 1024w, http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-147-300x155.jpg 300w, http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-147-768x396.jpg 768w, http:\/\/www.applicationsofllm.com\/wp-content\/uploads\/2025\/09\/image-147.jpg 1108w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" 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