{"id":199911,"date":"2025-05-06T08:16:49","date_gmt":"2025-05-06T00:16:49","guid":{"rendered":"https:\/\/server.hk\/cnblog\/199911\/"},"modified":"2025-05-06T08:16:49","modified_gmt":"2025-05-06T00:16:49","slug":"%e5%ae%9e%e7%8e%b0oracle%e5%ad%98%e5%82%a8%e8%bf%87%e7%a8%8b%e7%9a%84%e6%89%b9%e9%87%8f%e6%9b%b4%e6%96%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/199911\/","title":{"rendered":"\u5b9e\u73b0Oracle\u5b58\u50a8\u8fc7\u7a0b\u7684\u6279\u91cf\u66f4\u65b0"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5b9e\u73b0Oracle\u5b58\u50a8\u8fc7\u7a0b\u7684\u6279\u91cf\u66f4\u65b0<\/h1>\n<p>\u4e3b\u673a\u5b9d\u8d1d\u4eca\u5929\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u662f\u6b63\u5728\u5b66\u4e60\u6216\u8005\u5df2\u7ecf\u662f\u5927\u4f6c\u7ea7\u522b\u4e86\uff0c\u90fd\u975e\u5e38\u6b22\u8fce\u4e5f\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u7ed9\u6211\u5efa\u8bae\u8bc4\u8bba\u54c8~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff01<\/p>\n<p>\u6807\u9898\uff1aOracle\u5b58\u50a8\u8fc7\u7a0b\u6279\u91cf\u66f4\u65b0\u5b9e\u73b0\u65b9\u6cd5<\/p>\n<p>\u5728Oracle\u6570\u636e\u5e93\u4e2d\uff0c\u4f7f\u7528\u5b58\u50a8\u8fc7\u7a0b\u6279\u91cf\u66f4\u65b0\u6570\u636e\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u64cd\u4f5c\u3002\u901a\u8fc7\u6279\u91cf\u66f4\u65b0\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u5904\u7406\u7684\u6548\u7387\uff0c\u51cf\u5c11\u5bf9\u6570\u636e\u5e93\u7684\u9891\u7e41\u8bbf\u95ee\uff0c\u540c\u65f6\u4e5f\u80fd\u51cf\u5c11\u4ee3\u7801\u7684\u590d\u6742\u6027\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u5728Oracle\u6570\u636e\u5e93\u4e2d\u4f7f\u7528\u5b58\u50a8\u8fc7\u7a0b\u5b9e\u73b0\u6279\u91cf\u66f4\u65b0\u6570\u636e\u7684\u65b9\u6cd5\uff0c\u5e76\u7ed9\u51fa\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u5b58\u50a8\u8fc7\u7a0b\uff0c\u8be5\u5b58\u50a8\u8fc7\u7a0b\u5c06\u5b9e\u73b0\u6279\u91cf\u66f4\u65b0\u6570\u636e\u7684\u529f\u80fd\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u5b58\u50a8\u8fc7\u7a0b\u793a\u4f8b\uff0c\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u540d\u4e3a&#8221;employee&#8221;\u7684\u8868\uff0c\u9700\u8981\u6839\u636e\u5458\u5de5ID\u6279\u91cf\u66f4\u65b0\u5458\u5de5\u7684\u5de5\u8d44\uff1a<\/p>\n<pre>CREATE OR REPLACE PROCEDURE batch_update_salary\nIS\n  CURSOR c_employee IS\n    SELECT employee_id, new_salary\n    FROM employee\n    WHERE salary &lt; 5000;\n    \n  TYPE t_employee_id IS TABLE OF employee.employee_id%TYPE INDEX BY PLS_INTEGER;\n  TYPE t_salary IS TABLE OF employee.salary%TYPE INDEX BY PLS_INTEGER;\n  \n  l_employee_ids t_employee_id;\n  l_salaries t_salary;\nBEGIN\n  -- \u586b\u5145\u8981\u66f4\u65b0\u7684\u5458\u5de5ID\u548c\u65b0\u5de5\u8d44\u5230\u4e24\u4e2a\u6570\u7ec4\u4e2d\n  FOR rec IN c_employee LOOP\n    l_employee_ids(l_employee_ids.COUNT + 1) := rec.employee_id;\n    l_salaries(l_salaries.COUNT + 1) := rec.new_salary;\n  END LOOP;\n  \n  -- \u6279\u91cf\u66f4\u65b0\u5458\u5de5\u5de5\u8d44\n  FOR i IN 1..l_employee_ids.COUNT LOOP\n    UPDATE employee\n    SET salary = l_salaries(i)\n    WHERE employee_id = l_employee_ids(i);\n  END LOOP;\n  \n  COMMIT;\n  \n  DBMS_OUTPUT.PUT_LINE('\u6279\u91cf\u66f4\u65b0\u5b8c\u6210');\nEND;\n\/<\/pre>\n<p>\u5728\u8fd9\u4e2a\u5b58\u50a8\u8fc7\u7a0b\u4e2d\uff0c\u9996\u5148\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u6e38\u6807&#8221;c_employee&#8221;\u6765\u9009\u62e9\u5de5\u8d44\u5c0f\u4e8e5000\u7684\u5458\u5de5ID\u548c\u65b0\u5de5\u8d44\u3002\u63a5\u7740\u6211\u4eec\u5b9a\u4e49\u4e86\u4e24\u4e2aPL\/SQL\u8868\u7c7b\u578b&#8221;t_employee_id&#8221;\u548c&#8221;t_salary&#8221;\u6765\u4fdd\u5b58\u5458\u5de5ID\u548c\u65b0\u5de5\u8d44\u7684\u6570\u7ec4\u3002<\/p>\n<p>\u7136\u540e\uff0c\u5728\u5b58\u50a8\u8fc7\u7a0b\u7684\u4e3b\u4f53\u90e8\u5206\uff0c\u6211\u4eec\u4f7f\u7528\u6e38\u6807\u6765\u904d\u5386\u67e5\u8be2\u7ed3\u679c\uff0c\u5c06\u5458\u5de5ID\u548c\u65b0\u5de5\u8d44\u9010\u4e2a\u586b\u5165\u6570\u7ec4\u4e2d\u3002\u4e4b\u540e\uff0c\u901a\u8fc7\u4e00\u4e2a\u5faa\u73af\u904d\u5386\u6570\u7ec4\uff0c\u9010\u4e2a\u66f4\u65b0\u5458\u5de5\u7684\u5de5\u8d44\u4e3a\u65b0\u5de5\u8d44\u3002<\/p>\n<p>\u6700\u540e\uff0c\u6211\u4eec\u4f7f\u7528COMMIT\u8bed\u53e5\u63d0\u4ea4\u4e8b\u52a1\uff0c\u5e76\u901a\u8fc7DBMS_OUTPUT\u8f93\u51fa\u4e00\u6761\u63d0\u793a\u4fe1\u606f\u3002<\/p>\n<p>\u8981\u8c03\u7528\u8fd9\u4e2a\u5b58\u50a8\u8fc7\u7a0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8bed\u53e5\uff1a<\/p>\n<pre>EXECUTE batch_update_salary;<\/pre>\n<p>\u901a\u8fc7\u4e0a\u9762\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u6211\u4eec\u5c55\u793a\u4e86\u5982\u4f55\u5728Oracle\u6570\u636e\u5e93\u4e2d\u4f7f\u7528\u5b58\u50a8\u8fc7\u7a0b\u5b9e\u73b0\u6279\u91cf\u66f4\u65b0\u6570\u636e\u7684\u529f\u80fd\u3002\u5f53\u9700\u8981\u5904\u7406\u5927\u91cf\u6570\u636e\u5e76\u8fdb\u884c\u6279\u91cf\u66f4\u65b0\u65f6\uff0c\u4f7f\u7528\u5b58\u50a8\u8fc7\u7a0b\u53ef\u4ee5\u63d0\u9ad8\u6548\u7387\uff0c\u51cf\u5c11\u4ee3\u7801\u7684\u590d\u6742\u6027\uff0c\u662f\u6570\u636e\u5e93\u5f00\u53d1\u4e2d\u7684\u91cd\u8981\u6280\u672f\u4e4b\u4e00\u3002<\/p>\n<p>\u4eca\u5929\u5173\u4e8e\u300a\u5b9e\u73b0Oracle\u5b58\u50a8\u8fc7\u7a0b\u7684\u6279\u91cf\u66f4\u65b0\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8eOracle,\u6279\u91cf\u66f4\u65b0,\u5b58\u50a8\u8fc7\u7a0b\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5b9e\u73b0Oracle\u5b58\u50a8\u8fc7\u7a0b\u7684\u6279\u91cf\u66f4&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-199911","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199911","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=199911"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199911\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=199911"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=199911"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=199911"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}