{"id":61237,"date":"2024-10-13T09:34:15","date_gmt":"2024-10-13T01:34:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/61237\/"},"modified":"2024-10-13T09:34:15","modified_gmt":"2024-10-13T01:34:15","slug":"dw%e5%a6%82%e4%bd%95%e8%bc%b8%e5%87%basql%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%95%b8%e6%93%9a%ef%bc%9f-dw%e8%bc%b8%e5%87%basql%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/61237\/","title":{"rendered":"DW\u5982\u4f55\u8f38\u51faSQL\u6578\u64da\u5eab\u7684\u6578\u64da\uff1f (dw\u8f38\u51fasql\u6578\u64da\u5eab\u7684\u6578\u64da)"},"content":{"rendered":"<h1 id=\"dw%e5%a6%82%e4%bd%95%e8%bc%b8%e5%87%basql%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%95%b8%e6%93%9a%ef%bc%9f-FRamEwpsNF\">DW\u5982\u4f55\u8f38\u51faSQL\u6578\u64da\u5eab\u7684\u6578\u64da\uff1f<\/h1>\n<p>\u5728\u6578\u64da\u7ba1\u7406\u548c\u5206\u6790\u7684\u904e\u7a0b\u4e2d\uff0c\u6578\u64da\u7684\u8f38\u51fa\u662f\u81f3\u95dc\u91cd\u8981\u7684\u4e00\u6b65\u3002\u7279\u5225\u662f\u5728\u4f7f\u7528\u6578\u64da\u5009\u5eab\uff08Data Warehouse, DW\uff09\u6642\uff0c\u5c07SQL\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u5c0e\u51fa\u5230\u5176\u4ed6\u7cfb\u7d71\u6216\u683c\u5f0f\u4e2d\uff0c\u53ef\u4ee5\u5e6b\u52a9\u4f01\u696d\u9032\u884c\u66f4\u6df1\u5165\u7684\u5206\u6790\u548c\u5831\u544a\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728DW\u74b0\u5883\u4e2d\u6709\u6548\u5730\u8f38\u51faSQL\u6578\u64da\u5eab\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"1-%e4%ba%86%e8%a7%a3%e6%95%b8%e6%93%9a%e8%bc%b8%e5%87%ba%e7%9a%84%e9%9c%80%e6%b1%82-FRamEwpsNF\">1. \u4e86\u89e3\u6578\u64da\u8f38\u51fa\u7684\u9700\u6c42<\/h2>\n<p>\u5728\u958b\u59cb\u6578\u64da\u8f38\u51fa\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u660e\u78ba\u8f38\u51fa\u7684\u9700\u6c42\u3002\u9019\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u6578\u64da\u7684\u683c\u5f0f\uff1a\u4f8b\u5982CSV\u3001Excel\u3001JSON\u7b49\u3002<\/li>\n<li>\u6578\u64da\u7684\u7bc4\u570d\uff1a\u9700\u8981\u8f38\u51fa\u54ea\u4e9b\u8868\u683c\u6216\u5b57\u6bb5\u3002<\/li>\n<li>\u6578\u64da\u7684\u983b\u7387\uff1a\u662f\u4e00\u6b21\u6027\u8f38\u51fa\u9084\u662f\u5b9a\u671f\u81ea\u52d5\u8f38\u51fa\u3002<\/li>\n<\/ul>\n<h2 id=\"2-%e4%bd%bf%e7%94%a8sql%e6%9f%a5%e8%a9%a2%e5%b0%8e%e5%87%ba%e6%95%b8%e6%93%9a-FRamEwpsNF\">2. \u4f7f\u7528SQL\u67e5\u8a62\u5c0e\u51fa\u6578\u64da<\/h2>\n<p>\u5728SQL\u6578\u64da\u5eab\u4e2d\uff0c\u6700\u5e38\u898b\u7684\u6578\u64da\u5c0e\u51fa\u65b9\u5f0f\u662f\u4f7f\u7528SQL\u67e5\u8a62\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u57fa\u672c\u7684SQL\u67e5\u8a62\u793a\u4f8b\uff0c\u7528\u65bc\u9078\u64c7\u7279\u5b9a\u8868\u683c\u4e2d\u7684\u6578\u64da\uff1a<\/p>\n<pre><code>SELECT * FROM your_table_name;<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u5f9e\u6307\u5b9a\u7684\u8868\u683c\u4e2d\u9078\u64c7\u6240\u6709\u6578\u64da\u3002\u6839\u64da\u9700\u6c42\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u66f4\u5177\u9ad4\u7684\u689d\u4ef6\u4f86\u7be9\u9078\u6578\u64da\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT column1, column2 FROM your_table_name WHERE condition;<\/code><\/pre>\n<h2 id=\"3-%e5%b0%87%e6%95%b8%e6%93%9a%e5%b0%8e%e5%87%ba%e7%82%bacsv%e6%a0%bc%e5%bc%8f-FRamEwpsNF\">3. \u5c07\u6578\u64da\u5c0e\u51fa\u70baCSV\u683c\u5f0f<\/h2>\n<p>CSV\uff08\u9017\u865f\u5206\u9694\u503c\uff09\u662f\u4e00\u7a2e\u5e38\u898b\u7684\u6578\u64da\u5c0e\u51fa\u683c\u5f0f\uff0c\u56e0\u70ba\u5b83\u6613\u65bc\u8b80\u53d6\u548c\u8655\u7406\u3002\u8a31\u591aSQL\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff08\u5982MySQL\u3001PostgreSQL\uff09\u90fd\u63d0\u4f9b\u4e86\u5c07\u67e5\u8a62\u7d50\u679c\u5c0e\u51fa\u70baCSV\u7684\u529f\u80fd\u3002\u4ee5\u4e0b\u662fMySQL\u4e2d\u5c0e\u51faCSV\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM your_table_name\nINTO OUTFILE '\/path\/to\/your_file.csv'\nFIELDS TERMINATED BY ','\nENCLOSED BY '\"'\nLINES TERMINATED BY 'n';<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u67e5\u8a62\u7d50\u679c\u5c0e\u51fa\u5230\u6307\u5b9a\u7684CSV\u6587\u4ef6\u4e2d\u3002\u8acb\u78ba\u4fdd\u60a8\u6709\u8db3\u5920\u7684\u6b0a\u9650\u4f86\u5beb\u5165\u8a72\u8def\u5f91\u3002<\/p>\n<h2 id=\"4-%e4%bd%bf%e7%94%a8etl%e5%b7%a5%e5%85%b7%e9%80%b2%e8%a1%8c%e6%95%b8%e6%93%9a%e5%b0%8e%e5%87%ba-FRamEwpsNF\">4. \u4f7f\u7528ETL\u5de5\u5177\u9032\u884c\u6578\u64da\u5c0e\u51fa<\/h2>\n<p>\u9664\u4e86\u76f4\u63a5\u4f7f\u7528SQL\u67e5\u8a62\uff0c\u9084\u53ef\u4ee5\u4f7f\u7528ETL\uff08\u63d0\u53d6\u3001\u8f49\u63db\u3001\u52a0\u8f09\uff09\u5de5\u5177\u4f86\u9032\u884c\u6578\u64da\u5c0e\u51fa\u3002\u9019\u4e9b\u5de5\u5177\u901a\u5e38\u63d0\u4f9b\u66f4\u53cb\u597d\u7684\u7528\u6236\u754c\u9762\u548c\u66f4\u591a\u7684\u529f\u80fd\uff0c\u4f8b\u5982\u6578\u64da\u8f49\u63db\u548c\u6e05\u6d17\u3002\u5e38\u898b\u7684ETL\u5de5\u5177\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>Apache Nifi<\/li>\n<li>Talend<\/li>\n<li>Informatica<\/li>\n<\/ul>\n<p>\u9019\u4e9b\u5de5\u5177\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u8a2d\u7f6e\u81ea\u52d5\u5316\u7684\u6578\u64da\u5c0e\u51fa\u6d41\u7a0b\uff0c\u4e26\u652f\u6301\u591a\u7a2e\u6578\u64da\u683c\u5f0f\u3002<\/p>\n<h2 id=\"5-%e6%95%b8%e6%93%9a%e5%b0%8e%e5%87%ba%e7%9a%84%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-FRamEwpsNF\">5. \u6578\u64da\u5c0e\u51fa\u7684\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u5728\u9032\u884c\u6578\u64da\u5c0e\u51fa\u6642\uff0c\u9075\u5faa\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\u53ef\u4ee5\u63d0\u9ad8\u6548\u7387\u548c\u6e96\u78ba\u6027\uff1a<\/p>\n<ul>\n<li>\u5b9a\u671f\u5099\u4efd\u6578\u64da\uff0c\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li>\u5728\u5c0e\u51fa\u524d\u9032\u884c\u6578\u64da\u6e05\u6d17\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u8cea\u91cf\u3002<\/li>\n<li>\u4f7f\u7528\u9069\u7576\u7684\u6b0a\u9650\u63a7\u5236\uff0c\u78ba\u4fdd\u53ea\u6709\u6388\u6b0a\u7528\u6236\u53ef\u4ee5\u8a2a\u554f\u654f\u611f\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-FRamEwpsNF\">\u7e3d\u7d50<\/h2>\n<p>\u6578\u64da\u7684\u6709\u6548\u8f38\u51fa\u5c0d\u65bc\u6578\u64da\u5206\u6790\u548c\u5831\u544a\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u4f7f\u7528SQL\u67e5\u8a62\u9084\u662fETL\u5de5\u5177\uff0c\u4e86\u89e3\u6578\u64da\u8f38\u51fa\u7684\u9700\u6c42\u548c\u6700\u4f73\u5be6\u8e10\u90fd\u80fd\u5e6b\u52a9\u4f01\u696d\u66f4\u597d\u5730\u7ba1\u7406\u548c\u5229\u7528\u6578\u64da\u3002\u5982\u679c\u60a8\u9700\u8981\u7a69\u5b9a\u7684\u6578\u64da\u5b58\u5132\u548c\u8655\u7406\u74b0\u5883\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4f7f\u7528DW\u5de5\u5177\u6709\u6548\u8f38\u51faSQL\u6578\u64da\u5eab\u7684\u6578\u64da\uff0c\u7c21\u5316\u6578\u64da\u7ba1\u7406\u8207\u5206\u6790\u6d41\u7a0b\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-61237","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61237","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=61237"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61237\/revisions"}],"predecessor-version":[{"id":61238,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61237\/revisions\/61238"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=61237"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=61237"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=61237"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}