{"id":96000,"date":"2024-10-20T05:46:19","date_gmt":"2024-10-19T21:46:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/96000\/"},"modified":"2024-10-20T05:46:20","modified_gmt":"2024-10-19T21:46:20","slug":"oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e4%bd%bf%e7%94%a8%e5%a4%96%e9%83%a8%e8%a1%a8%e7%9a%84%e5%bf%83%e5%be%97","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/96000\/","title":{"rendered":"Oracle\u6578\u64da\u5eab\u4e2d\u4f7f\u7528\u5916\u90e8\u8868\u7684\u5fc3\u5f97"},"content":{"rendered":"<h1 id=\"oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e4%bd%bf%e7%94%a8%e5%a4%96%e9%83%a8%e8%a1%a8%e7%9a%84%e5%bf%83%e5%be%97-heqKMIMVeI\">Oracle\u6578\u64da\u5eab\u4e2d\u4f7f\u7528\u5916\u90e8\u8868\u7684\u5fc3\u5f97<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cOracle\u6578\u64da\u5eab\u4ee5\u5176\u5f37\u5927\u7684\u529f\u80fd\u548c\u9748\u6d3b\u6027\u800c\u805e\u540d\u3002\u5916\u90e8\u8868\uff08External Tables\uff09\u662fOracle\u6578\u64da\u5eab\u7684\u4e00\u500b\u91cd\u8981\u7279\u6027\uff0c\u5141\u8a31\u7528\u6236\u76f4\u63a5\u67e5\u8a62\u5b58\u5132\u5728\u5916\u90e8\u6587\u4ef6\u7cfb\u7d71\u4e2d\u7684\u6578\u64da\uff0c\u800c\u7121\u9700\u5c07\u6578\u64da\u5c0e\u5165\u5230\u6578\u64da\u5eab\u4e2d\u3002\u9019\u4e00\u7279\u6027\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u7279\u5225\u6709\u7528\uff0c\u56e0\u70ba\u5b83\u53ef\u4ee5\u7bc0\u7701\u5b58\u5132\u7a7a\u9593\u548c\u63d0\u9ad8\u6578\u64da\u8655\u7406\u6548\u7387\u3002<\/p>\n<h2 id=\"%e5%a4%96%e9%83%a8%e8%a1%a8%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-heqKMIMVeI\">\u5916\u90e8\u8868\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5916\u90e8\u8868\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u8868\uff0c\u5141\u8a31\u7528\u6236\u5f9e\u5916\u90e8\u6578\u64da\u6e90\uff08\u5982\u6587\u672c\u6587\u4ef6\u3001CSV\u6587\u4ef6\u7b49\uff09\u8b80\u53d6\u6578\u64da\u3002\u9019\u4e9b\u8868\u7684\u5b9a\u7fa9\u8207\u666e\u901a\u8868\u76f8\u4f3c\uff0c\u4f46\u5b83\u5011\u7684\u6578\u64da\u4e26\u4e0d\u5b58\u5132\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u800c\u662f\u5b58\u5132\u5728\u5916\u90e8\u6587\u4ef6\u4e2d\u3002\u7528\u6236\u53ef\u4ee5\u4f7f\u7528SQL\u67e5\u8a62\u8a9e\u8a00\u4f86\u8a2a\u554f\u9019\u4e9b\u6578\u64da\uff0c\u9019\u4f7f\u5f97\u6578\u64da\u7684\u8655\u7406\u8b8a\u5f97\u66f4\u52a0\u9748\u6d3b\u3002<\/p>\n<h2 id=\"%e5%89%b5%e5%bb%ba%e5%a4%96%e9%83%a8%e8%a1%a8%e7%9a%84%e6%ad%a5%e9%a9%9f-heqKMIMVeI\">\u5275\u5efa\u5916\u90e8\u8868\u7684\u6b65\u9a5f<\/h2>\n<p>\u5275\u5efa\u5916\u90e8\u8868\u7684\u904e\u7a0b\u76f8\u5c0d\u7c21\u55ae\uff0c\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ol>\n<li><strong>\u5b9a\u7fa9\u5916\u90e8\u6587\u4ef6\u7684\u4f4d\u7f6e\uff1a<\/strong>\u9996\u5148\uff0c\u9700\u8981\u78ba\u5b9a\u5916\u90e8\u6587\u4ef6\u7684\u8def\u5f91\u548c\u540d\u7a31\u3002<\/li>\n<li><strong>\u5275\u5efa\u5916\u90e8\u8868\uff1a<\/strong>\u4f7f\u7528CREATE TABLE\u8a9e\u53e5\u4f86\u5b9a\u7fa9\u5916\u90e8\u8868\u7684\u7d50\u69cb\u548c\u5c6c\u6027\u3002<\/li>\n<li><strong>\u67e5\u8a62\u5916\u90e8\u8868\uff1a<\/strong>\u4e00\u65e6\u5916\u90e8\u8868\u5275\u5efa\u5b8c\u6210\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528SELECT\u8a9e\u53e5\u4f86\u67e5\u8a62\u6578\u64da\u3002<\/li>\n<\/ol>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e5%89%b5%e5%bb%ba%e5%a4%96%e9%83%a8%e8%a1%a8-heqKMIMVeI\">\u793a\u4f8b\uff1a\u5275\u5efa\u5916\u90e8\u8868<\/h3>\n<pre><code>CREATE TABLE external_table_name (\n    column1 datatype,\n    column2 datatype,\n    ...\n)\nORGANIZATION EXTERNAL (\n    TYPE ORACLE_LOADER\n    DEFAULT DIRECTORY directory_name\n    ACCESS PARAMETERS (\n        RECORDS DELIMITED BY NEWLINE\n        FIELDS TERMINATED BY ','\n        MISSING FIELDS ARE NULL\n    )\n    LOCATION ('file_name.csv')\n);\n<\/code><\/pre>\n<p>\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c<code>external_table_name<\/code>\u662f\u5916\u90e8\u8868\u7684\u540d\u7a31\uff0c<code>directory_name<\/code>\u662fOracle\u6578\u64da\u5eab\u4e2d\u5b9a\u7fa9\u7684\u76ee\u9304\uff0c<code>file_name.csv<\/code>\u662f\u5916\u90e8\u6587\u4ef6\u7684\u540d\u7a31\u3002\u9019\u6a23\u5b9a\u7fa9\u5f8c\uff0c\u7528\u6236\u5c31\u53ef\u4ee5\u901a\u904eSQL\u67e5\u8a62\u4f86\u8a2a\u554f\u8a72CSV\u6587\u4ef6\u4e2d\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e5%a4%96%e9%83%a8%e8%a1%a8%e7%9a%84%e5%84%aa%e5%8b%a2-heqKMIMVeI\">\u4f7f\u7528\u5916\u90e8\u8868\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u63d0\u9ad8\u6027\u80fd\uff1a<\/strong>\u5916\u90e8\u8868\u5141\u8a31\u7528\u6236\u76f4\u63a5\u67e5\u8a62\u5916\u90e8\u6578\u64da\uff0c\u907f\u514d\u4e86\u6578\u64da\u5c0e\u5165\u7684\u904e\u7a0b\uff0c\u5f9e\u800c\u63d0\u9ad8\u4e86\u6027\u80fd\u3002<\/li>\n<li><strong>\u9748\u6d3b\u6027\uff1a<\/strong>\u7528\u6236\u53ef\u4ee5\u96a8\u6642\u66f4\u6539\u5916\u90e8\u6587\u4ef6\u7684\u5167\u5bb9\uff0c\u800c\u7121\u9700\u4fee\u6539\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u7bc0\u7701\u5b58\u5132\u7a7a\u9593\uff1a<\/strong>\u7531\u65bc\u6578\u64da\u4e0d\u9700\u8981\u5b58\u5132\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u56e0\u6b64\u53ef\u4ee5\u7bc0\u7701\u5927\u91cf\u7684\u5b58\u5132\u7a7a\u9593\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-heqKMIMVeI\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5118\u7ba1\u5916\u90e8\u8868\u6709\u8a31\u591a\u512a\u52e2\uff0c\u4f46\u5728\u4f7f\u7528\u6642\u4e5f\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u6027\u80fd\u554f\u984c\uff1a<\/strong>\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\uff0c\u5916\u90e8\u8868\u7684\u6027\u80fd\u53ef\u80fd\u6703\u53d7\u5230\u5f71\u97ff\uff0c\u56e0\u6b64\u9700\u8981\u6839\u64da\u5be6\u969b\u60c5\u6cc1\u9032\u884c\u8abf\u6574\u3002<\/li>\n<li><strong>\u5b89\u5168\u6027\uff1a<\/strong>\u5916\u90e8\u8868\u7684\u6578\u64da\u4f86\u6e90\u9700\u8981\u78ba\u4fdd\u5b89\u5168\uff0c\u907f\u514d\u672a\u7d93\u6388\u6b0a\u7684\u8a2a\u554f\u3002<\/li>\n<li><strong>\u6578\u64da\u4e00\u81f4\u6027\uff1a<\/strong>\u7531\u65bc\u5916\u90e8\u8868\u7684\u6578\u64da\u4e0d\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u53ef\u80fd\u6703\u51fa\u73fe\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\uff0c\u56e0\u6b64\u9700\u8981\u5b9a\u671f\u6aa2\u67e5\u6578\u64da\u7684\u5b8c\u6574\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-heqKMIMVeI\">\u7e3d\u7d50<\/h2>\n<p>Oracle\u6578\u64da\u5eab\u4e2d\u7684\u5916\u90e8\u8868\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u9748\u6d3b\u5730\u8655\u7406\u548c\u67e5\u8a62\u5916\u90e8\u6578\u64da\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u7f6e\u548c\u4f7f\u7528\uff0c\u5916\u90e8\u8868\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6548\u7387\u548c\u9748\u6d3b\u6027\u3002\u5c0d\u65bc\u9700\u8981\u8655\u7406\u5927\u91cf\u6578\u64da\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u5916\u90e8\u8868\u7121\u7591\u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u9078\u64c7\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u652f\u6301\u60a8\u7684Oracle\u6578\u64da\u5eab\u9700\u6c42\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u696d\u52d9\u5e36\u4f86\u66f4\u591a\u7684\u4fbf\u5229\u548c\u9748\u6d3b\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5728Oracle\u6578\u64da\u5eab\u4e2d\u4f7f\u7528\u5916\u90e8\u8868\u7684\u7d93\u9a57\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u7c21\u5316\u6578\u64da\u96c6\u6210\u904e\u7a0b\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-96000","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96000","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=96000"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96000\/revisions"}],"predecessor-version":[{"id":96001,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96000\/revisions\/96001"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=96000"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=96000"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=96000"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}