{"id":94594,"date":"2024-10-19T19:33:21","date_gmt":"2024-10-19T11:33:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/94594\/"},"modified":"2024-10-19T19:33:22","modified_gmt":"2024-10-19T11:33:22","slug":"oracle-%e5%a4%9a%e5%b1%a4%e6%b8%b8%e6%a8%99%e7%9a%84%e5%b5%8c%e5%a5%97%e5%af%a6%e6%93%8d","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/94594\/","title":{"rendered":"Oracle \u591a\u5c64\u6e38\u6a19\u7684\u5d4c\u5957\u5be6\u64cd"},"content":{"rendered":"<h1 id=\"oracle-%e5%a4%9a%e5%b1%a4%e6%b8%b8%e6%a8%99%e7%9a%84%e5%b5%8c%e5%a5%97%e5%af%a6%e6%93%8d-SsKaHdQnVC\">Oracle \u591a\u5c64\u6e38\u6a19\u7684\u5d4c\u5957\u5be6\u64cd<\/h1>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u6e38\u6a19\u662f\u4e00\u7a2e\u7528\u65bc\u8655\u7406\u67e5\u8a62\u7d50\u679c\u7684\u6578\u64da\u7d50\u69cb\u3002\u591a\u5c64\u6e38\u6a19\u7684\u5d4c\u5957\u4f7f\u7528\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5728\u8907\u96dc\u7684\u67e5\u8a62\u4e2d\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eOracle\u591a\u5c64\u6e38\u6a19\u7684\u6982\u5ff5\u3001\u4f7f\u7528\u65b9\u6cd5\u53ca\u5176\u5be6\u969b\u61c9\u7528\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%b8%b8%e6%a8%99%ef%bc%9f-SsKaHdQnVC\">\u4ec0\u9ebc\u662f\u6e38\u6a19\uff1f<\/h2>\n<p>\u6e38\u6a19\u662fOracle\u6578\u64da\u5eab\u4e2d\u7528\u4f86\u5b58\u53d6\u67e5\u8a62\u7d50\u679c\u96c6\u7684\u5de5\u5177\u3002\u5b83\u5141\u8a31\u958b\u767c\u8005\u9010\u884c\u8655\u7406\u67e5\u8a62\u7d50\u679c\uff0c\u4e26\u5728\u9700\u8981\u6642\u9032\u884c\u66f4\u65b0\u6216\u522a\u9664\u64cd\u4f5c\u3002\u6e38\u6a19\u5206\u70ba\u986f\u5f0f\u6e38\u6a19\u548c\u96b1\u5f0f\u6e38\u6a19\u5169\u7a2e\uff1a<\/p>\n<ul>\n<li><strong>\u986f\u5f0f\u6e38\u6a19\uff1a<\/strong>\u958b\u767c\u8005\u9700\u8981\u624b\u52d5\u5b9a\u7fa9\u548c\u63a7\u5236\u7684\u6e38\u6a19\u3002<\/li>\n<li><strong>\u96b1\u5f0f\u6e38\u6a19\uff1a<\/strong>Oracle\u81ea\u52d5\u5275\u5efa\u7684\u6e38\u6a19\uff0c\u901a\u5e38\u7528\u65bc\u7c21\u55ae\u7684SQL\u8a9e\u53e5\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a4%9a%e5%b1%a4%e6%b8%b8%e6%a8%99%e7%9a%84%e6%a6%82%e5%bf%b5-SsKaHdQnVC\">\u591a\u5c64\u6e38\u6a19\u7684\u6982\u5ff5<\/h2>\n<p>\u591a\u5c64\u6e38\u6a19\u662f\u6307\u5728\u4e00\u500b\u6e38\u6a19\u4e2d\u5d4c\u5957\u53e6\u4e00\u500b\u6e38\u6a19\u3002\u9019\u7a2e\u7d50\u69cb\u901a\u5e38\u7528\u65bc\u9700\u8981\u5f9e\u591a\u500b\u8868\u4e2d\u63d0\u53d6\u6578\u64da\u7684\u60c5\u6cc1\u3002\u901a\u904e\u4f7f\u7528\u591a\u5c64\u6e38\u6a19\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5728\u4e00\u500b\u67e5\u8a62\u4e2d\u7372\u53d6\u66f4\u70ba\u8907\u96dc\u7684\u6578\u64da\u7d50\u69cb\u3002<\/p>\n<h2 id=\"%e5%a4%9a%e5%b1%a4%e6%b8%b8%e6%a8%99%e7%9a%84%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95-SsKaHdQnVC\">\u591a\u5c64\u6e38\u6a19\u7684\u4f7f\u7528\u65b9\u6cd5<\/h2>\n<p>\u5728Oracle\u4e2d\uff0c\u4f7f\u7528\u591a\u5c64\u6e38\u6a19\u7684\u57fa\u672c\u6b65\u9a5f\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u5b9a\u7fa9\u5916\u90e8\u6e38\u6a19\u3002<\/li>\n<li>\u5728\u5916\u90e8\u6e38\u6a19\u7684\u5faa\u74b0\u4e2d\uff0c\u5b9a\u7fa9\u5167\u90e8\u6e38\u6a19\u3002<\/li>\n<li>\u4f7f\u7528\u5167\u90e8\u6e38\u6a19\u8655\u7406\u6578\u64da\u3002<\/li>\n<li>\u95dc\u9589\u6e38\u6a19\u4ee5\u91cb\u653e\u8cc7\u6e90\u3002<\/li>\n<\/ol>\n<h3 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-SsKaHdQnVC\">\u793a\u4f8b\u4ee3\u78bc<\/h3>\n<pre><code>\nDECLARE\n    CURSOR outer_cursor IS\n        SELECT department_id, department_name FROM departments;\n    \n    CURSOR inner_cursor IS\n        SELECT employee_id, employee_name FROM employees WHERE department_id = outer_cursor.department_id;\n\n    v_department_id departments.department_id%TYPE;\n    v_department_name departments.department_name%TYPE;\n    v_employee_id employees.employee_id%TYPE;\n    v_employee_name employees.employee_name%TYPE;\nBEGIN\n    OPEN outer_cursor;\n    LOOP\n        FETCH outer_cursor INTO v_department_id, v_department_name;\n        EXIT WHEN outer_cursor%NOTFOUND;\n\n        DBMS_OUTPUT.PUT_LINE('Department: ' || v_department_name);\n\n        OPEN inner_cursor;\n        LOOP\n            FETCH inner_cursor INTO v_employee_id, v_employee_name;\n            EXIT WHEN inner_cursor%NOTFOUND;\n\n            DBMS_OUTPUT.PUT_LINE('  Employee: ' || v_employee_name);\n        END LOOP;\n        CLOSE inner_cursor;\n    END LOOP;\n    CLOSE outer_cursor;\nEND;\n<\/code><\/pre>\n<p>\u5728\u4e0a\u8ff0\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5b9a\u7fa9\u4e86\u4e00\u500b\u5916\u90e8\u6e38\u6a19\u4f86\u67e5\u8a62\u90e8\u9580\u4fe1\u606f\uff0c\u7136\u5f8c\u5728\u5916\u90e8\u6e38\u6a19\u7684\u5faa\u74b0\u4e2d\u5b9a\u7fa9\u4e86\u4e00\u500b\u5167\u90e8\u6e38\u6a19\u4f86\u67e5\u8a62\u8a72\u90e8\u9580\u7684\u54e1\u5de5\u4fe1\u606f\u3002\u9019\u6a23\u7684\u7d50\u69cb\u4f7f\u5f97\u6211\u5011\u80fd\u5920\u6e05\u6670\u5730\u7372\u53d6\u6bcf\u500b\u90e8\u9580\u53ca\u5176\u5c0d\u61c9\u7684\u54e1\u5de5\u3002<\/p>\n<h2 id=\"%e5%a4%9a%e5%b1%a4%e6%b8%b8%e6%a8%99%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-SsKaHdQnVC\">\u591a\u5c64\u6e38\u6a19\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<p>\u591a\u5c64\u6e38\u6a19\u7684\u5d4c\u5957\u4f7f\u7528\u5728\u8a31\u591a\u5834\u666f\u4e2d\u90fd\u975e\u5e38\u6709\u7528\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><strong>\u5831\u544a\u751f\u6210\uff1a<\/strong>\u5728\u751f\u6210\u8907\u96dc\u5831\u544a\u6642\uff0c\u53ef\u80fd\u9700\u8981\u5f9e\u591a\u500b\u8868\u4e2d\u63d0\u53d6\u6578\u64da\u3002<\/li>\n<li><strong>\u6578\u64da\u5206\u6790\uff1a<\/strong>\u5728\u9032\u884c\u6578\u64da\u5206\u6790\u6642\uff0c\u53ef\u80fd\u9700\u8981\u5c0d\u4e0d\u540c\u5c64\u7d1a\u7684\u6578\u64da\u9032\u884c\u8655\u7406\u3002<\/li>\n<li><strong>\u6578\u64da\u9077\u79fb\uff1a<\/strong>\u5728\u6578\u64da\u9077\u79fb\u904e\u7a0b\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u5f9e\u4e00\u500b\u8868\u4e2d\u63d0\u53d6\u6578\u64da\u4e26\u63d2\u5165\u5230\u53e6\u4e00\u500b\u8868\u4e2d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-SsKaHdQnVC\">\u7e3d\u7d50<\/h2>\n<p>Oracle\u591a\u5c64\u6e38\u6a19\u7684\u5d4c\u5957\u4f7f\u7528\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u4e00\u7a2e\u9748\u6d3b\u7684\u65b9\u5f0f\u4f86\u8655\u7406\u8907\u96dc\u7684\u6578\u64da\u67e5\u8a62\u3002\u901a\u904e\u5408\u7406\u5730\u4f7f\u7528\u6e38\u6a19\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\uff0c\u5f9e\u800c\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u53ef\u7dad\u8b77\u6027\u3002\u5982\u679c\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u548c\u64cd\u4f5c\u6709\u9032\u4e00\u6b65\u7684\u9700\u6c42\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u642d\u5efa\u60a8\u7684\u6578\u64da\u5eab\u74b0\u5883\uff0c\u4eab\u53d7\u66f4\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\u80fd\u529b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Oracle\u591a\u5c64\u6e38\u6a19\u7684\u5d4c\u5957\u5be6\u64cd\uff0c\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u7ba1\u7406\u548c\u512a\u5316\u6578\u64da\u67e5\u8a62\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\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-94594","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94594","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=94594"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94594\/revisions"}],"predecessor-version":[{"id":94595,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94594\/revisions\/94595"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=94594"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=94594"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=94594"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}