{"id":95028,"date":"2024-10-19T21:38:30","date_gmt":"2024-10-19T13:38:30","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95028\/"},"modified":"2024-10-19T21:38:30","modified_gmt":"2024-10-19T13:38:30","slug":"oracle%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e8%ae%80%e5%af%ab%e6%96%87%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95028\/","title":{"rendered":"Oracle\u5b58\u5132\u904e\u7a0b\u8b80\u5beb\u6587\u4ef6"},"content":{"rendered":"<h1 id=\"oracle%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e8%ae%80%e5%af%ab%e6%96%87%e4%bb%b6-TCsydiVGJF\">Oracle\u5b58\u5132\u904e\u7a0b\u8b80\u5beb\u6587\u4ef6<\/h1>\n<p>\u5728\u73fe\u4ee3\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cOracle\u6578\u64da\u5eab\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u529f\u80fd\u4f86\u8655\u7406\u5404\u7a2e\u6578\u64da\u64cd\u4f5c\uff0c\u5176\u4e2d\u5305\u62ec\u8b80\u5beb\u6587\u4ef6\u7684\u80fd\u529b\u3002\u4f7f\u7528\u5b58\u5132\u904e\u7a0b\u4f86\u9032\u884c\u6587\u4ef6\u64cd\u4f5c\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6548\u7387\uff0c\u9084\u80fd\u5920\u7c21\u5316\u4ee3\u78bc\u7684\u7ba1\u7406\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728Oracle\u4e2d\u4f7f\u7528\u5b58\u5132\u904e\u7a0b\u4f86\u8b80\u53d6\u548c\u5beb\u5165\u6587\u4ef6\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"oracle%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e6%a6%82%e8%bf%b0-TCsydiVGJF\">Oracle\u5b58\u5132\u904e\u7a0b\u6982\u8ff0<\/h2>\n<p>\u5b58\u5132\u904e\u7a0b\u662f\u4e00\u7d44\u9810\u7de8\u8b6f\u7684SQL\u8a9e\u53e5\u548cPL\/SQL\u4ee3\u78bc\uff0c\u5b58\u5132\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u53ef\u4ee5\u88ab\u61c9\u7528\u7a0b\u5e8f\u8abf\u7528\u3002\u9019\u4e9b\u904e\u7a0b\u53ef\u4ee5\u63a5\u53d7\u53c3\u6578\uff0c\u4e26\u57f7\u884c\u8907\u96dc\u7684\u696d\u52d9\u908f\u8f2f\u3002\u4f7f\u7528\u5b58\u5132\u904e\u7a0b\u7684\u597d\u8655\u5305\u62ec\u63d0\u9ad8\u6027\u80fd\u3001\u6e1b\u5c11\u7db2\u7d61\u6d41\u91cf\u4ee5\u53ca\u589e\u5f37\u5b89\u5168\u6027\u3002<\/p>\n<h2 id=\"%e8%ae%80%e5%8f%96%e6%96%87%e4%bb%b6%e7%9a%84%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b-TCsydiVGJF\">\u8b80\u53d6\u6587\u4ef6\u7684\u5b58\u5132\u904e\u7a0b<\/h2>\n<p>\u5728Oracle\u4e2d\uff0c\u8b80\u53d6\u6587\u4ef6\u901a\u5e38\u6d89\u53ca\u5230\u4f7f\u7528UTL_FILE\u5305\u3002\u9019\u500b\u5305\u63d0\u4f9b\u4e86\u5c0d\u6587\u4ef6\u7cfb\u7d71\u7684\u8a2a\u554f\uff0c\u5141\u8a31\u7528\u6236\u8b80\u53d6\u548c\u5beb\u5165\u64cd\u4f5c\u7cfb\u7d71\u4e0a\u7684\u6587\u4ef6\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528\u5b58\u5132\u904e\u7a0b\u4f86\u8b80\u53d6\u6587\u4ef6\uff1a<\/p>\n<pre><code>CREATE OR REPLACE PROCEDURE read_file IS\n    file_handle UTL_FILE.FILE_TYPE;\n    line_buffer VARCHAR2(32767);\nBEGIN\n    -- \u6253\u958b\u6587\u4ef6\n    file_handle := UTL_FILE.FOPEN('DIRECTORY_NAME', 'file.txt', 'R');\n    \n    -- \u9010\u884c\u8b80\u53d6\u6587\u4ef6\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;\nEND read_file;\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\u6587\u4ef6\uff0c\u7136\u5f8c\u4f7f\u7528UTL_FILE.GET_LINE\u9010\u884c\u8b80\u53d6\u6587\u4ef6\u5167\u5bb9\uff0c\u6700\u5f8c\u95dc\u9589\u6587\u4ef6\u3002\u8acb\u6ce8\u610f\uff0c&#8217;DIRECTORY_NAME&#8217;\u9700\u8981\u5728Oracle\u4e2d\u9810\u5148\u5b9a\u7fa9\uff0c\u4e26\u4e14\u5fc5\u9808\u5177\u6709\u76f8\u61c9\u7684\u8b80\u53d6\u6b0a\u9650\u3002<\/p>\n<h2 id=\"%e5%af%ab%e5%85%a5%e6%96%87%e4%bb%b6%e7%9a%84%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b-TCsydiVGJF\">\u5beb\u5165\u6587\u4ef6\u7684\u5b58\u5132\u904e\u7a0b<\/h2>\n<p>\u9664\u4e86\u8b80\u53d6\u6587\u4ef6\uff0cOracle\u9084\u53ef\u4ee5\u4f7f\u7528UTL_FILE\u5305\u4f86\u5beb\u5165\u6587\u4ef6\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5c07\u6578\u64da\u5beb\u5165\u6587\u4ef6\uff1a<\/p>\n<pre><code>CREATE OR REPLACE PROCEDURE write_file IS\n    file_handle UTL_FILE.FILE_TYPE;\nBEGIN\n    -- \u6253\u958b\u6587\u4ef6\u4ee5\u5beb\u5165\n    file_handle := UTL_FILE.FOPEN('DIRECTORY_NAME', 'output.txt', 'W');\n    \n    -- \u5beb\u5165\u6578\u64da\n    UTL_FILE.PUT_LINE(file_handle, '\u9019\u662f\u4e00\u884c\u5beb\u5165\u7684\u6578\u64da');\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;\nEND write_file;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528UTL_FILE.FOPEN\u4ee5\u5beb\u5165\u6a21\u5f0f\u6253\u958b\u6587\u4ef6\uff0c\u7136\u5f8c\u4f7f\u7528UTL_FILE.PUT_LINE\u5c07\u6578\u64da\u5beb\u5165\u6587\u4ef6\u3002\u6700\u5f8c\uff0c\u8a18\u5f97\u95dc\u9589\u6587\u4ef6\u4ee5\u91cb\u653e\u8cc7\u6e90\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-TCsydiVGJF\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u78ba\u4fdd\u5728Oracle\u4e2d\u5b9a\u7fa9\u4e86\u6b63\u78ba\u7684\u76ee\u9304\u5c0d\u8c61\uff0c\u4e26\u6388\u4e88\u4e86\u76f8\u61c9\u7684\u6b0a\u9650\u3002<\/li>\n<li>\u8655\u7406\u6587\u4ef6\u6642\uff0c\u61c9\u8003\u616e\u5230\u7570\u5e38\u8655\u7406\uff0c\u4ee5\u907f\u514d\u8cc7\u6e90\u6cc4\u6f0f\u3002<\/li>\n<li>\u6839\u64da\u9700\u8981\u8abf\u6574\u6587\u4ef6\u7684\u8b80\u5beb\u6a21\u5f0f\uff08\u5982\u53ea\u8b80\u3001\u53ea\u5beb\u3001\u9644\u52a0\u7b49\uff09\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-TCsydiVGJF\">\u7e3d\u7d50<\/h2>\n<p>\u4f7f\u7528Oracle\u5b58\u5132\u904e\u7a0b\u4f86\u8b80\u5beb\u6587\u4ef6\u662f\u4e00\u500b\u5f37\u5927\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u9ad8\u6548\u5730\u8655\u7406\u6578\u64da\u3002\u901a\u904eUTL_FILE\u5305\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u5be6\u73fe\u6587\u4ef6\u7684\u8b80\u53d6\u548c\u5beb\u5165\u64cd\u4f5c\u3002\u9019\u4e9b\u6280\u8853\u5728\u6578\u64da\u8655\u7406\u548c\u5831\u544a\u751f\u6210\u4e2d\u5c24\u70ba\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u96f2\u74b0\u5883\u4e2d\u904b\u884c\u9019\u4e9b\u5b58\u5132\u904e\u7a0b\u611f\u8208\u8da3\uff0c\u6216\u8005\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u7684\u8cc7\u8a0a\uff0c\u8acb\u96a8\u6642\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8a73\u7d30\u8cc7\u6599\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Oracle\u5b58\u5132\u904e\u7a0b\u4e2d\u5982\u4f55\u9ad8\u6548\u8b80\u5beb\u6587\u4ef6\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u80fd\u529b\uff0c\u7c21\u5316\u696d\u52d9\u6d41\u7a0b\uff0c\u5be6\u73fe\u81ea\u52d5\u5316\u7ba1\u7406\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-95028","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95028","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=95028"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95028\/revisions"}],"predecessor-version":[{"id":95029,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95028\/revisions\/95029"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95028"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95028"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95028"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}