{"id":94502,"date":"2024-10-19T19:18:16","date_gmt":"2024-10-19T11:18:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/94502\/"},"modified":"2024-10-19T19:18:16","modified_gmt":"2024-10-19T11:18:16","slug":"oracle-utl_file%e5%8c%85%e8%ae%80%e5%8f%96%e6%95%b8%e6%93%9a%e7%9a%84%e5%af%a6%e4%be%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/94502\/","title":{"rendered":"Oracle utl_file\u5305\u8b80\u53d6\u6578\u64da\u7684\u5be6\u4f8b"},"content":{"rendered":"<h1 id=\"oracle-utl_file%e5%8c%85%e8%ae%80%e5%8f%96%e6%95%b8%e6%93%9a%e7%9a%84%e5%af%a6%e4%be%8b-URJahaKGRw\">Oracle UTL_FILE\u5305\u8b80\u53d6\u6578\u64da\u7684\u5be6\u4f8b<\/h1>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0cUTL_FILE\u5305\u662f\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\uff0c\u5141\u8a31\u7528\u6236\u5f9e\u6587\u4ef6\u7cfb\u7d71\u4e2d\u8b80\u53d6\u548c\u5beb\u5165\u6587\u4ef6\u3002\u9019\u5c0d\u65bc\u9700\u8981\u8655\u7406\u5916\u90e8\u6578\u64da\u7684\u61c9\u7528\u7a0b\u5e8f\u4f86\u8aaa\uff0c\u5c24\u5176\u91cd\u8981\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528UTL_FILE\u5305\u4f86\u8b80\u53d6\u6578\u64da\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u4f8b\u4f86\u5e6b\u52a9\u7406\u89e3\u5176\u7528\u6cd5\u3002<\/p>\n<h2 id=\"utl_file%e5%8c%85%e6%a6%82%e8%bf%b0-URJahaKGRw\">UTL_FILE\u5305\u6982\u8ff0<\/h2>\n<p>UTL_FILE\u5305\u63d0\u4f9b\u4e86\u4e00\u7d44\u7a0b\u5e8f\u548c\u51fd\u6578\uff0c\u5141\u8a31PL\/SQL\u7a0b\u5e8f\u8a2a\u554f\u64cd\u4f5c\u7cfb\u7d71\u7684\u6587\u4ef6\u3002\u4f7f\u7528UTL_FILE\u6642\uff0c\u9996\u5148\u9700\u8981\u78ba\u4fddOracle\u6578\u64da\u5eab\u7684\u521d\u59cb\u5316\u53c3\u6578\u4e2d\u8a2d\u7f6e\u4e86\u6b63\u78ba\u7684\u76ee\u9304\u8def\u5f91\u3002\u9019\u4e9b\u76ee\u9304\u5fc5\u9808\u5728\u6578\u64da\u5eab\u4e2d\u9032\u884c\u5b9a\u7fa9\uff0c\u4e26\u4e14\u7528\u6236\u5fc5\u9808\u64c1\u6709\u5c0d\u9019\u4e9b\u76ee\u9304\u7684\u8a2a\u554f\u6b0a\u9650\u3002<\/p>\n<h3 id=\"%e8%a8%ad%e7%bd%ae%e7%9b%ae%e9%8c%84-URJahaKGRw\">\u8a2d\u7f6e\u76ee\u9304<\/h3>\n<p>\u5728\u4f7f\u7528UTL_FILE\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u5275\u5efa\u4e00\u500b\u76ee\u9304\u5c0d\u8c61\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u76ee\u9304\u7684SQL\u8a9e\u53e5\uff1a<\/p>\n<pre><code>CREATE OR REPLACE DIRECTORY my_dir AS '\/path\/to\/your\/directory';<\/code><\/pre>\n<p>\u63a5\u4e0b\u4f86\uff0c\u60a8\u9700\u8981\u6388\u4e88\u7528\u6236\u5c0d\u8a72\u76ee\u9304\u7684\u8a2a\u554f\u6b0a\u9650\uff1a<\/p>\n<pre><code>GRANT READ, WRITE ON DIRECTORY my_dir TO your_user;<\/code><\/pre>\n<h2 id=\"%e8%ae%80%e5%8f%96%e6%96%87%e4%bb%b6%e7%9a%84%e5%af%a6%e4%be%8b-URJahaKGRw\">\u8b80\u53d6\u6587\u4ef6\u7684\u5be6\u4f8b<\/h2>\n<p>\u4e00\u65e6\u8a2d\u7f6e\u4e86\u76ee\u9304\uff0c\u60a8\u5c31\u53ef\u4ee5\u4f7f\u7528UTL_FILE\u5305\u4f86\u8b80\u53d6\u6587\u4ef6\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5f9e\u6587\u4ef6\u4e2d\u8b80\u53d6\u6578\u64da\uff1a<\/p>\n<pre><code>DECLARE\n    file_handle UTL_FILE.FILE_TYPE;\n    line_buffer VARCHAR2(32767);\nBEGIN\n    -- \u6253\u958b\u6587\u4ef6\n    file_handle := UTL_FILE.FOPEN('MY_DIR', 'example.txt', 'R');\n\n    -- \u8b80\u53d6\u6587\u4ef6\u5167\u5bb9\n    LOOP\n        BEGIN\n            UTL_FILE.GET_LINE(file_handle, line_buffer);\n            DBMS_OUTPUT.PUT_LINE(line_buffer);\n        EXCEPTION\n            WHEN NO_DATA_FOUND THEN\n                EXIT; -- \u7576\u6c92\u6709\u66f4\u591a\u6578\u64da\u6642\u9000\u51fa\u5faa\u74b0\n        END;\n    END LOOP;\n\n    -- \u95dc\u9589\u6587\u4ef6\n    UTL_FILE.FCLOSE(file_handle);\nEXCEPTION\n    WHEN OTHERS THEN\n        IF UTL_FILE.IS_OPEN(file_handle) THEN\n            UTL_FILE.FCLOSE(file_handle);\n        END IF;\n        RAISE; -- \u91cd\u65b0\u62cb\u51fa\u7570\u5e38\nEND;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u4f7f\u7528UTL_FILE.FOPEN\u51fd\u6578\u6253\u958b\u4e00\u500b\u540d\u70ba\u201cexample.txt\u201d\u7684\u6587\u4ef6\uff0c\u7136\u5f8c\u4f7f\u7528UTL_FILE.GET_LINE\u51fd\u6578\u9010\u884c\u8b80\u53d6\u6587\u4ef6\u5167\u5bb9\uff0c\u4e26\u5c07\u5176\u8f38\u51fa\u5230\u63a7\u5236\u53f0\u3002\u6700\u5f8c\uff0c\u6211\u5011\u78ba\u4fdd\u5728\u5b8c\u6210\u5f8c\u95dc\u9589\u6587\u4ef6\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-URJahaKGRw\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u78ba\u4fdd\u6587\u4ef6\u8def\u5f91\u6b63\u78ba\uff0c\u4e26\u4e14Oracle\u7528\u6236\u64c1\u6709\u8a2a\u554f\u6b0a\u9650\u3002<\/li>\n<li>\u8655\u7406\u6587\u4ef6\u6642\uff0c\u61c9\u59cb\u7d42\u8003\u616e\u7570\u5e38\u60c5\u6cc1\uff0c\u78ba\u4fdd\u6587\u4ef6\u80fd\u5920\u6b63\u78ba\u95dc\u9589\u3002<\/li>\n<li>UTL_FILE\u5305\u7684\u6027\u80fd\u53ef\u80fd\u6703\u53d7\u5230\u6587\u4ef6\u5927\u5c0f\u548cI\/O\u64cd\u4f5c\u7684\u5f71\u97ff\uff0c\u56e0\u6b64\u5728\u8655\u7406\u5927\u578b\u6587\u4ef6\u6642\u8981\u7279\u5225\u5c0f\u5fc3\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-URJahaKGRw\">\u7e3d\u7d50<\/h2>\n<p>UTL_FILE\u5305\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u5728Oracle\u6578\u64da\u5eab\u4e2d\u8f15\u9b06\u5730\u8b80\u53d6\u548c\u5beb\u5165\u6587\u4ef6\u3002\u901a\u904e\u6b63\u78ba\u8a2d\u7f6e\u76ee\u9304\u548c\u4f7f\u7528\u76f8\u61c9\u7684\u51fd\u6578\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u8655\u7406\u5916\u90e8\u6578\u64da\u3002\u5c0d\u65bc\u9700\u8981\u5728\u9999\u6e2f\u9032\u884c\u6578\u64da\u8655\u7406\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u53ef\u4ee5\u63d0\u4f9b\u66f4\u597d\u7684\u6027\u80fd\u548c\u9748\u6d3b\u6027\u3002\u7121\u8ad6\u662f\u4f7f\u7528 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u9084\u662f\u5176\u4ed6\u96f2\u670d\u52d9\uff0c\u78ba\u4fdd\u60a8\u7684\u6578\u64da\u8655\u7406\u9700\u6c42\u5f97\u5230\u6eff\u8db3\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Oracle UTL_FILE\u5305\u7684\u5be6\u4f8b\uff0c\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u8b80\u53d6\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\u8207\u61c9\u7528\u6027\u80fd\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-94502","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94502","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=94502"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94502\/revisions"}],"predecessor-version":[{"id":94503,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94502\/revisions\/94503"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=94502"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=94502"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=94502"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}