{"id":95508,"date":"2024-10-20T01:38:18","date_gmt":"2024-10-19T17:38:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95508\/"},"modified":"2024-10-20T01:38:19","modified_gmt":"2024-10-19T17:38:19","slug":"oracle%e6%95%b8%e6%93%9a%e5%ba%absqlload%e5%b8%b8%e7%94%a8%e6%8a%80%e5%b7%a7%e7%b8%bd%e7%b5%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95508\/","title":{"rendered":"Oracle\u6578\u64da\u5eabSqlLoad\u5e38\u7528\u6280\u5de7\u7e3d\u7d50"},"content":{"rendered":"<h1 id=\"oracle%e6%95%b8%e6%93%9a%e5%ba%absqlload%e5%b8%b8%e7%94%a8%e6%8a%80%e5%b7%a7%e7%b8%bd%e7%b5%90-cDeGDFoTRC\">Oracle\u6578\u64da\u5eabSqlLoad\u5e38\u7528\u6280\u5de7\u7e3d\u7d50<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cOracle\u7684SQL*Loader\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u9ad8\u6548\u5730\u5c07\u6578\u64da\u5f9e\u5916\u90e8\u6587\u4ef6\u52a0\u8f09\u5230Oracle\u6578\u64da\u5eab\u4e2d\u3002\u672c\u6587\u5c07\u7e3d\u7d50\u4e00\u4e9b\u5e38\u7528\u7684SQL*Loader\u6280\u5de7\uff0c\u5e6b\u52a9\u7528\u6236\u66f4\u597d\u5730\u5229\u7528\u9019\u4e00\u5de5\u5177\u3002<\/p>\n<h2 id=\"1-%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-cDeGDFoTRC\">1. \u57fa\u672c\u6982\u5ff5<\/h2>\n<p>SQL*Loader\u662f\u4e00\u500b\u7528\u65bc\u5c07\u6578\u64da\u5f9e\u5916\u90e8\u6587\u4ef6\u52a0\u8f09\u5230Oracle\u6578\u64da\u5eab\u7684\u5be6\u7528\u7a0b\u5e8f\u3002\u5b83\u652f\u6301\u591a\u7a2e\u6578\u64da\u683c\u5f0f\uff0c\u5305\u62ecCSV\u3001\u56fa\u5b9a\u9577\u5ea6\u548c\u4e8c\u9032\u5236\u683c\u5f0f\u3002\u4f7f\u7528SQL*Loader\u7684\u4e3b\u8981\u512a\u52e2\u5728\u65bc\u5176\u9ad8\u6548\u6027\u548c\u9748\u6d3b\u6027\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002<\/p>\n<h2 id=\"2-%e5%89%b5%e5%bb%ba%e6%8e%a7%e5%88%b6%e6%96%87%e4%bb%b6-cDeGDFoTRC\">2. \u5275\u5efa\u63a7\u5236\u6587\u4ef6<\/h2>\n<p>\u63a7\u5236\u6587\u4ef6\u662fSQL*Loader\u7684\u6838\u5fc3\uff0c\u5b9a\u7fa9\u4e86\u6578\u64da\u7684\u7d50\u69cb\u548c\u52a0\u8f09\u65b9\u5f0f\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u63a7\u5236\u6587\u4ef6\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nLOAD DATA\nINFILE 'data.csv'\nINTO TABLE employees\nFIELDS TERMINATED BY ','\n(\n    employee_id INTEGER EXTERNAL,\n    first_name CHAR,\n    last_name CHAR,\n    hire_date \"TO_DATE(:hire_date, 'YYYY-MM-DD')\"\n)\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u63a7\u5236\u6587\u4ef6\u6307\u5b9a\u4e86\u6578\u64da\u4f86\u6e90\uff08data.csv\uff09\u3001\u76ee\u6a19\u8868\uff08employees\uff09\u4ee5\u53ca\u5b57\u6bb5\u7684\u683c\u5f0f\u3002<\/p>\n<h2 id=\"3-%e4%bd%bf%e7%94%a8%e4%b8%8d%e5%90%8c%e7%9a%84%e5%8a%a0%e8%bc%89%e6%96%b9%e5%bc%8f-cDeGDFoTRC\">3. \u4f7f\u7528\u4e0d\u540c\u7684\u52a0\u8f09\u65b9\u5f0f<\/h2>\n<p>SQL*Loader\u652f\u6301\u591a\u7a2e\u52a0\u8f09\u65b9\u5f0f\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>INSERT\uff1a<\/strong>\u5c07\u6578\u64da\u63d2\u5165\u5230\u8868\u4e2d\u3002<\/li>\n<li><strong>REPLACE\uff1a<\/strong>\u5982\u679c\u8a18\u9304\u5df2\u5b58\u5728\uff0c\u5247\u66ff\u63db\u5b83\u3002<\/li>\n<li><strong>APPEND\uff1a<\/strong>\u5c07\u6578\u64da\u9644\u52a0\u5230\u8868\u7684\u672b\u5c3e\u3002<\/li>\n<\/ul>\n<p>\u9078\u64c7\u5408\u9069\u7684\u52a0\u8f09\u65b9\u5f0f\u53ef\u4ee5\u6839\u64da\u5177\u9ad4\u9700\u6c42\u4f86\u6c7a\u5b9a\u3002\u4f8b\u5982\uff0c\u4f7f\u7528REPLACE\u53ef\u4ee5\u907f\u514d\u91cd\u8907\u6578\u64da\uff0c\u4f46\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002<\/p>\n<h2 id=\"4-%e6%95%b8%e6%93%9a%e9%a9%97%e8%ad%89-cDeGDFoTRC\">4. \u6578\u64da\u9a57\u8b49<\/h2>\n<p>\u5728\u52a0\u8f09\u6578\u64da\u4e4b\u524d\uff0c\u9032\u884c\u6578\u64da\u9a57\u8b49\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002SQL*Loader\u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u9805\u4f86\u6aa2\u67e5\u6578\u64da\u7684\u6709\u6548\u6027\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528WHEN\u5b50\u53e5\u4f86\u904e\u6ffe\u4e0d\u7b26\u5408\u689d\u4ef6\u7684\u8a18\u9304\uff1a<\/p>\n<pre><code>\nLOAD DATA\nINFILE 'data.csv'\nINTO TABLE employees\nWHEN (hire_date &gt;= '2020-01-01')\nFIELDS TERMINATED BY ','\n(\n    employee_id INTEGER EXTERNAL,\n    first_name CHAR,\n    last_name CHAR,\n    hire_date \"TO_DATE(:hire_date, 'YYYY-MM-DD')\"\n)\n<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u53ea\u6709\u57282020\u5e741\u67081\u65e5\u4e4b\u5f8c\u7684\u96c7\u7528\u65e5\u671f\u624d\u6703\u88ab\u52a0\u8f09\u3002<\/p>\n<h2 id=\"5-%e6%80%a7%e8%83%bd%e5%84%aa%e5%8c%96-cDeGDFoTRC\">5. \u6027\u80fd\u512a\u5316<\/h2>\n<p>\u70ba\u4e86\u63d0\u9ad8SQL*Loader\u7684\u6027\u80fd\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528DIRECT PATH\u52a0\u8f09\uff1a<\/strong>\u9019\u7a2e\u65b9\u5f0f\u53ef\u4ee5\u7e5e\u904e\u67d0\u4e9b\u6578\u64da\u5eab\u7684\u65e5\u8a8c\u8a18\u9304\uff0c\u5f9e\u800c\u63d0\u9ad8\u52a0\u8f09\u901f\u5ea6\u3002<\/li>\n<li><strong>\u8abf\u6574BUFFER\u548cREADSIZE\uff1a<\/strong>\u6839\u64da\u6578\u64da\u7684\u5927\u5c0f\u548c\u7d50\u69cb\uff0c\u9069\u7576\u8abf\u6574\u9019\u4e9b\u53c3\u6578\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<li><strong>\u7981\u7528\u7d22\u5f15\uff1a<\/strong>\u5728\u52a0\u8f09\u6578\u64da\u4e4b\u524d\u7981\u7528\u7d22\u5f15\uff0c\u7136\u5f8c\u518d\u91cd\u65b0\u5efa\u7acb\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u52a0\u8f09\u901f\u5ea6\u3002<\/li>\n<\/ul>\n<h2 id=\"6-%e9%8c%af%e8%aa%a4%e8%99%95%e7%90%86-cDeGDFoTRC\">6. \u932f\u8aa4\u8655\u7406<\/h2>\n<p>\u5728\u6578\u64da\u52a0\u8f09\u904e\u7a0b\u4e2d\uff0c\u932f\u8aa4\u662f\u4e0d\u53ef\u907f\u514d\u7684\u3002SQL*Loader\u63d0\u4f9b\u4e86\u932f\u8aa4\u6587\u4ef6\u7684\u9078\u9805\uff0c\u53ef\u4ee5\u5c07\u932f\u8aa4\u8a18\u9304\u5230\u6307\u5b9a\u7684\u6587\u4ef6\u4e2d\uff0c\u65b9\u4fbf\u5f8c\u7e8c\u7684\u6392\u67e5\u548c\u4fee\u6b63\uff1a<\/p>\n<pre><code>\nLOAD DATA\nINFILE 'data.csv'\nINTO TABLE employees\nBADFILE 'bad_records.bad'\nLOGFILE 'load.log'\nFIELDS TERMINATED BY ','\n(\n    employee_id INTEGER EXTERNAL,\n    first_name CHAR,\n    last_name CHAR,\n    hire_date \"TO_DATE(:hire_date, 'YYYY-MM-DD')\"\n)\n<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u6240\u6709\u932f\u8aa4\u7684\u8a18\u9304\u5c07\u88ab\u5beb\u5165bad_records.bad\u6587\u4ef6\u4e2d\uff0c\u4e26\u4e14\u52a0\u8f09\u904e\u7a0b\u7684\u65e5\u8a8c\u5c07\u8a18\u9304\u5728load.log\u4e2d\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-cDeGDFoTRC\">\u7e3d\u7d50<\/h2>\n<p>SQL*Loader\u662f\u4e00\u500b\u529f\u80fd\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u9ad8\u6548\u5730\u5c07\u6578\u64da\u52a0\u8f09\u5230Oracle\u6578\u64da\u5eab\u4e2d\u3002\u901a\u904e\u5408\u7406\u4f7f\u7528\u63a7\u5236\u6587\u4ef6\u3001\u9078\u64c7\u5408\u9069\u7684\u52a0\u8f09\u65b9\u5f0f\u3001\u9032\u884c\u6578\u64da\u9a57\u8b49\u3001\u512a\u5316\u6027\u80fd\u4ee5\u53ca\u59a5\u5584\u8655\u7406\u932f\u8aa4\uff0c\u7528\u6236\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u6578\u64da\u52a0\u8f09\u7684\u6548\u7387\u548c\u6e96\u78ba\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Oracle\u6578\u64da\u5eabSqlLoad\u7684\u5e38\u7528\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u52a0\u8f09\u6548\u7387\uff0c\u7c21\u5316\u64cd\u4f5c\u6d41\u7a0b\uff0c\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u6578\u64da\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-95508","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95508","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=95508"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95508\/revisions"}],"predecessor-version":[{"id":95509,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95508\/revisions\/95509"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95508"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95508"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95508"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}