{"id":157748,"date":"2024-11-02T23:38:25","date_gmt":"2024-11-02T15:38:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/157748\/"},"modified":"2024-11-02T23:38:27","modified_gmt":"2024-11-02T15:38:27","slug":"%e9%ab%98%e6%95%88%e4%be%bf%e6%8d%b7%e7%9a%84-plsql-%e6%89%b9%e9%87%8f%e5%b0%8e%e5%87%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e6%96%b9%e6%b3%95%ef%bc%8c%e8%ae%93%e6%95%b8%e6%93%9a%e5%82%99%e4%bb%bd%e6%9b%b4","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/157748\/","title":{"rendered":"\u9ad8\u6548\u4fbf\u6377\u7684 PLSQL \u6279\u91cf\u5c0e\u51fa\u6578\u64da\u5eab\u65b9\u6cd5\uff0c\u8b93\u6578\u64da\u5099\u4efd\u66f4\u52a0\u8f15\u9b06\uff01\uff08PLSQL \u6279\u91cf\u5c0e\u51fa\u6578\u64da\u5eab\uff09"},"content":{"rendered":"<h1 id=\"%e9%ab%98%e6%95%88%e4%be%bf%e6%8d%b7%e7%9a%84-plsql-%e6%89%b9%e9%87%8f%e5%b0%8e%e5%87%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e6%96%b9%e6%b3%95%ef%bc%8c%e8%ae%93%e6%95%b8%e6%93%9a%e5%82%99%e4%bb%bd%e6%9b%b4-cKZDWukdFf\">\u9ad8\u6548\u4fbf\u6377\u7684 PLSQL \u6279\u91cf\u5c0e\u51fa\u6578\u64da\u5eab\u65b9\u6cd5\uff0c\u8b93\u6578\u64da\u5099\u4efd\u66f4\u52a0\u8f15\u9b06\uff01<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u53ef\u7528\u6027\u81f3\u95dc\u91cd\u8981\u3002\u5c0d\u65bc\u4f7f\u7528 Oracle \u6578\u64da\u5eab\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u5b9a\u671f\u5099\u4efd\u6578\u64da\u5eab\u662f\u78ba\u4fdd\u6578\u64da\u5b89\u5168\u7684\u95dc\u9375\u6b65\u9a5f\u3002PLSQL \u4f5c\u70ba Oracle \u6578\u64da\u5eab\u7684\u539f\u751f\u7de8\u7a0b\u8a9e\u8a00\uff0c\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u529f\u80fd\u4f86\u5be6\u73fe\u6279\u91cf\u5c0e\u51fa\u6578\u64da\u5eab\u7684\u9700\u6c42\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u9ad8\u6548\u4fbf\u6377\u7684 PLSQL \u6279\u91cf\u5c0e\u51fa\u6578\u64da\u5eab\u65b9\u6cd5\uff0c\u5e6b\u52a9\u7528\u6236\u8f15\u9b06\u5b8c\u6210\u6578\u64da\u5099\u4efd\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87-plsql-%e9%80%b2%e8%a1%8c%e6%95%b8%e6%93%9a%e5%b0%8e%e5%87%ba%ef%bc%9f-cKZDWukdFf\">\u70ba\u4ec0\u9ebc\u9078\u64c7 PLSQL \u9032\u884c\u6578\u64da\u5c0e\u51fa\uff1f<\/h2>\n<p>PLSQL \u662f\u4e00\u7a2e\u7d50\u5408\u4e86 SQL \u548c\u7a0b\u5e8f\u8a2d\u8a08\u8a9e\u8a00\u7684\u5f37\u5927\u5de5\u5177\uff0c\u80fd\u5920\u5728 Oracle \u6578\u64da\u5eab\u4e2d\u57f7\u884c\u8907\u96dc\u7684\u64cd\u4f5c\u3002\u4f7f\u7528 PLSQL \u9032\u884c\u6578\u64da\u5c0e\u51fa\u6709\u4ee5\u4e0b\u5e7e\u500b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6548\u6027\uff1a<\/strong>PLSQL \u53ef\u4ee5\u6279\u91cf\u8655\u7406\u6578\u64da\uff0c\u6e1b\u5c11\u624b\u52d5\u64cd\u4f5c\u7684\u6642\u9593\u548c\u932f\u8aa4\u3002<\/li>\n<li><strong>\u9748\u6d3b\u6027\uff1a<\/strong>\u7528\u6236\u53ef\u4ee5\u6839\u64da\u9700\u6c42\u81ea\u5b9a\u7fa9\u5c0e\u51fa\u689d\u4ef6\u548c\u683c\u5f0f\u3002<\/li>\n<li><strong>\u81ea\u52d5\u5316\uff1a<\/strong>\u53ef\u4ee5\u901a\u904e\u5b9a\u6642\u4efb\u52d9\u81ea\u52d5\u57f7\u884c\u5c0e\u51fa\u64cd\u4f5c\uff0c\u6e1b\u5c11\u4eba\u5de5\u5e72\u9810\u3002<\/li>\n<\/ul>\n<h2 id=\"plsql-%e6%89%b9%e9%87%8f%e5%b0%8e%e5%87%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%ad%a5%e9%a9%9f-cKZDWukdFf\">PLSQL \u6279\u91cf\u5c0e\u51fa\u6578\u64da\u5eab\u7684\u57fa\u672c\u6b65\u9a5f<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528 PLSQL \u6279\u91cf\u5c0e\u51fa\u6578\u64da\u5eab\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e8%a8%ad%e5%ae%9a%e5%b0%8e%e5%87%ba%e7%9b%ae%e6%a8%99-cKZDWukdFf\">1. \u8a2d\u5b9a\u5c0e\u51fa\u76ee\u6a19<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u78ba\u5b9a\u5c0e\u51fa\u6578\u64da\u7684\u76ee\u6a19\u4f4d\u7f6e\u3002\u9019\u53ef\u4ee5\u662f\u672c\u5730\u6587\u4ef6\u7cfb\u7d71\u6216\u9060\u7a0b\u670d\u52d9\u5668\u3002\u78ba\u4fdd\u60a8\u6709\u8db3\u5920\u7684\u6b0a\u9650\u4f86\u5beb\u5165\u8a72\u4f4d\u7f6e\u3002<\/p>\n<h3 id=\"2-%e7%b7%a8%e5%af%ab-plsql-%e8%85%b3%e6%9c%ac-cKZDWukdFf\">2. \u7de8\u5beb PLSQL \u8173\u672c<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u60a8\u9700\u8981\u7de8\u5beb\u4e00\u500b PLSQL \u8173\u672c\u4f86\u57f7\u884c\u6578\u64da\u5c0e\u51fa\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5c0e\u51fa\u4e00\u500b\u8868\u7684\u6578\u64da\uff1a<\/p>\n<pre><code>\nDECLARE\n    v_file UTL_FILE.FILE_TYPE;\n    v_line VARCHAR2(32767);\nBEGIN\n    v_file := UTL_FILE.FOPEN('EXPORT_DIR', 'export_data.csv', 'W');\n    \n    FOR rec IN (SELECT * FROM your_table) LOOP\n        v_line := rec.column1 || ',' || rec.column2 || ',' || rec.column3; -- \u6839\u64da\u9700\u8981\u8abf\u6574\u5217\n        UTL_FILE.PUT_LINE(v_file, v_line);\n    END LOOP;\n    \n    UTL_FILE.FCLOSE(v_file);\nEXCEPTION\n    WHEN OTHERS THEN\n        IF UTL_FILE.IS_OPEN(v_file) THEN\n            UTL_FILE.FCLOSE(v_file);\n        END IF;\n        RAISE;\nEND;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86 UTL_FILE \u5305\u4f86\u5275\u5efa\u4e00\u500b CSV \u6587\u4ef6\u4e26\u5c07\u6578\u64da\u5beb\u5165\u5176\u4e2d\u3002\u8acb\u6839\u64da\u5be6\u969b\u60c5\u6cc1\u8abf\u6574 SQL \u67e5\u8a62\u548c\u6587\u4ef6\u540d\u3002<\/p>\n<h3 id=\"3-%e6%b8%ac%e8%a9%a6%e5%92%8c%e9%a9%97%e8%ad%89-cKZDWukdFf\">3. \u6e2c\u8a66\u548c\u9a57\u8b49<\/h3>\n<p>\u5728\u57f7\u884c\u5c0e\u51fa\u64cd\u4f5c\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u5728\u5c0f\u7bc4\u570d\u5167\u9032\u884c\u6e2c\u8a66\uff0c\u4ee5\u78ba\u4fdd\u8173\u672c\u7684\u6b63\u78ba\u6027\u3002\u6aa2\u67e5\u5c0e\u51fa\u7684\u6587\u4ef6\u662f\u5426\u7b26\u5408\u9810\u671f\u683c\u5f0f\uff0c\u4e26\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\u3002<\/p>\n<h3 id=\"4-%e8%87%aa%e5%8b%95%e5%8c%96%e5%b0%8e%e5%87%ba%e4%bb%bb%e5%8b%99-cKZDWukdFf\">4. \u81ea\u52d5\u5316\u5c0e\u51fa\u4efb\u52d9<\/h3>\n<p>\u70ba\u4e86\u63d0\u9ad8\u6548\u7387\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 Oracle \u7684 DBMS_SCHEDULER \u5305\u4f86\u8a2d\u7f6e\u5b9a\u6642\u4efb\u52d9\uff0c\u81ea\u52d5\u57f7\u884c\u6578\u64da\u5c0e\u51fa\u8173\u672c\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5b9a\u671f\u5099\u4efd\uff0c\u6e1b\u5c11\u4eba\u5de5\u5e72\u9810\u3002<\/p>\n<pre><code>\nBEGIN\n    DBMS_SCHEDULER.CREATE_JOB (\n        job_name        =&gt; 'EXPORT_JOB',\n        job_type        =&gt; 'PLSQL_BLOCK',\n        job_action      =&gt; 'BEGIN your_export_procedure; END;',\n        start_date      =&gt; SYSTIMESTAMP,\n        repeat_interval  =&gt; 'FREQ=DAILY; BYHOUR=2; BYMINUTE=0; BYSECOND=0',\n        enabled         =&gt; TRUE\n    );\nEND;\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-cKZDWukdFf\">\u7e3d\u7d50<\/h2>\n<p>\u4f7f\u7528 PLSQL \u9032\u884c\u6279\u91cf\u5c0e\u51fa\u6578\u64da\u5eab\u662f\u4e00\u7a2e\u9ad8\u6548\u4e14\u9748\u6d3b\u7684\u6578\u64da\u5099\u4efd\u65b9\u6cd5\u3002\u901a\u904e\u7de8\u5beb\u7c21\u55ae\u7684 PLSQL \u8173\u672c\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5730\u5c07\u6578\u64da\u5c0e\u51fa\u5230\u6307\u5b9a\u7684\u6587\u4ef6\u4e2d\uff0c\u4e26\u4e14\u53ef\u4ee5\u901a\u904e\u81ea\u52d5\u5316\u4efb\u52d9\u4f86\u5b9a\u671f\u57f7\u884c\u9019\u4e00\u904e\u7a0b\u3002\u9019\u4e0d\u50c5\u63d0\u9ad8\u4e86\u5de5\u4f5c\u6548\u7387\uff0c\u9084\u80fd\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u64cd\u4f5c\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9ad8\u6548\u4fbf\u6377\u7684 PLSQL \u6279\u91cf\u5c0e\u51fa\u6578\u64da\u5eab\u65b9\u6cd5\uff0c\u8f15\u9b06\u5be6\u73fe\u6578\u64da\u5099\u4efd\uff0c\u63d0\u5347\u5de5\u4f5c\u6548\u7387\uff0c\u78ba\u4fdd\u6578\u64da\u5b89\u5168\u7121\u6182\uff01<\/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-157748","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/157748","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=157748"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/157748\/revisions"}],"predecessor-version":[{"id":157749,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/157748\/revisions\/157749"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=157748"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=157748"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=157748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}