{"id":60461,"date":"2024-10-13T03:03:15","date_gmt":"2024-10-12T19:03:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60461\/"},"modified":"2024-10-13T03:03:16","modified_gmt":"2024-10-12T19:03:16","slug":"db2%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e4%bd%bf%e7%94%a8%e5%8b%95%e6%85%8b%e6%b8%b8%e6%a8%99%e7%9a%84%e4%be%8b%e5%ad%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60461\/","title":{"rendered":"DB2\u5b58\u5132\u904e\u7a0b\u4f7f\u7528\u52d5\u614b\u6e38\u6a19\u7684\u4f8b\u5b50"},"content":{"rendered":"<h1 id=\"db2%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e4%bd%bf%e7%94%a8%e5%8b%95%e6%85%8b%e6%b8%b8%e6%a8%99%e7%9a%84%e4%be%8b%e5%ad%90-irbltwyrLt\">DB2\u5b58\u5132\u904e\u7a0b\u4f7f\u7528\u52d5\u614b\u6e38\u6a19\u7684\u4f8b\u5b50<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u5b58\u5132\u904e\u7a0b\u662f\u4e00\u7a2e\u975e\u5e38\u91cd\u8981\u7684\u529f\u80fd\uff0c\u5b83\u5141\u8a31\u7528\u6236\u5728\u8cc7\u6599\u5eab\u4e2d\u57f7\u884c\u4e00\u7cfb\u5217\u7684SQL\u8a9e\u53e5\u3002DB2\u4f5c\u70baIBM\u7684\u4e00\u6b3e\u5f37\u5927\u8cc7\u6599\u5eab\u7cfb\u7d71\uff0c\u652f\u6301\u591a\u7a2e\u529f\u80fd\uff0c\u5305\u62ec\u52d5\u614b\u6e38\u6a19\u7684\u4f7f\u7528\u3002\u672c\u6587\u5c07\u63a2\u8a0eDB2\u5b58\u5132\u904e\u7a0b\u4e2d\u5982\u4f55\u4f7f\u7528\u52d5\u614b\u6e38\u6a19\uff0c\u4e26\u63d0\u4f9b\u5177\u9ad4\u7684\u4f8b\u5b50\u4f86\u8aaa\u660e\u5176\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%8b%95%e6%85%8b%e6%b8%b8%e6%a8%99%ef%bc%9f-irbltwyrLt\">\u4ec0\u9ebc\u662f\u52d5\u614b\u6e38\u6a19\uff1f<\/h2>\n<p>\u52d5\u614b\u6e38\u6a19\u662f\u4e00\u7a2e\u53ef\u4ee5\u5728\u67e5\u8a62\u7d50\u679c\u4e2d\u96a8\u610f\u79fb\u52d5\u7684\u6e38\u6a19\u3002\u8207\u975c\u614b\u6e38\u6a19\u4e0d\u540c\uff0c\u52d5\u614b\u6e38\u6a19\u80fd\u5920\u53cd\u6620\u8cc7\u6599\u5eab\u4e2d\u6578\u64da\u7684\u5373\u6642\u8b8a\u5316\uff0c\u9019\u4f7f\u5f97\u5b83\u5728\u9700\u8981\u983b\u7e41\u66f4\u65b0\u6216\u67e5\u8a62\u7684\u60c5\u6cc1\u4e0b\u975e\u5e38\u6709\u7528\u3002\u52d5\u614b\u6e38\u6a19\u7684\u4e3b\u8981\u7279\u9ede\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u80fd\u5920\u5373\u6642\u53cd\u6620\u8cc7\u6599\u7684\u8b8a\u5316\u3002<\/li>\n<li>\u652f\u6301\u96a8\u6a5f\u8a2a\u554f\u67e5\u8a62\u7d50\u679c\u3002<\/li>\n<li>\u9069\u5408\u7528\u65bc\u9700\u8981\u591a\u6b21\u8b80\u53d6\u548c\u66f4\u65b0\u7684\u5834\u666f\u3002<\/li>\n<\/ul>\n<h2 id=\"db2%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%b5%90%e6%a7%8b-irbltwyrLt\">DB2\u5b58\u5132\u904e\u7a0b\u7684\u57fa\u672c\u7d50\u69cb<\/h2>\n<p>\u5728DB2\u4e2d\uff0c\u5b58\u5132\u904e\u7a0b\u7684\u57fa\u672c\u7d50\u69cb\u5982\u4e0b\uff1a<\/p>\n<pre><code>\nCREATE PROCEDURE procedure_name (IN parameter_name datatype)\nLANGUAGE SQL\nBEGIN\n    -- SQL statements\nEND\n<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c\u6211\u5011\u5c07\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\u4f7f\u7528\u52d5\u614b\u6e38\u6a19\u4f86\u67e5\u8a62\u6578\u64da\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e5%8b%95%e6%85%8b%e6%b8%b8%e6%a8%99%e7%9a%84%e7%af%84%e4%be%8b-irbltwyrLt\">\u4f7f\u7528\u52d5\u614b\u6e38\u6a19\u7684\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528\u52d5\u614b\u6e38\u6a19\u7684DB2\u5b58\u5132\u904e\u7a0b\u7bc4\u4f8b\u3002\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba\u201cemployees\u201d\u7684\u8868\uff0c\u5305\u542b\u54e1\u5de5\u7684\u57fa\u672c\u4fe1\u606f\uff0c\u6211\u5011\u5e0c\u671b\u901a\u904e\u5b58\u5132\u904e\u7a0b\u4f86\u67e5\u8a62\u6240\u6709\u54e1\u5de5\u7684\u59d3\u540d\u548c\u5de5\u8cc7\u3002<\/p>\n<pre><code>\nCREATE PROCEDURE GetEmployees()\nLANGUAGE SQL\nBEGIN\n    DECLARE emp_name VARCHAR(100);\n    DECLARE emp_salary DECIMAL(10, 2);\n    DECLARE emp_cursor CURSOR FOR \n        SELECT name, salary FROM employees;\n    \n    DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;\n\n    OPEN emp_cursor;\n\n    read_loop: LOOP\n        FETCH emp_cursor INTO emp_name, emp_salary;\n        IF done THEN\n            LEAVE read_loop;\n        END IF;\n        -- \u5728\u9019\u88e1\u53ef\u4ee5\u9032\u884c\u5176\u4ed6\u64cd\u4f5c\uff0c\u4f8b\u5982\u6253\u5370\u6216\u8655\u7406\u6578\u64da\n        CALL LogEmployee(emp_name, emp_salary);\n    END LOOP;\n\n    CLOSE emp_cursor;\nEND\n<\/code><\/pre>\n<h3 id=\"%e7%af%84%e4%be%8b%e8%a7%a3%e9%87%8b-irbltwyrLt\">\u7bc4\u4f8b\u89e3\u91cb<\/h3>\n<p>\u5728\u4e0a\u8ff0\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5b9a\u7fa9\u4e86\u4e00\u500b\u6e38\u6a19\u201cemp_cursor\u201d\uff0c\u5b83\u7528\u65bc\u67e5\u8a62\u201cemployees\u201d\u8868\u4e2d\u7684\u59d3\u540d\u548c\u5de5\u8cc7\u3002\u63a5\u8457\uff0c\u6211\u5011\u4f7f\u7528LOOP\u7d50\u69cb\u4f86\u904d\u6b77\u6e38\u6a19\u4e2d\u7684\u6bcf\u4e00\u689d\u8a18\u9304\uff0c\u4e26\u5c07\u7d50\u679c\u5b58\u5132\u5728\u8b8a\u91cf\u201cemp_name\u201d\u548c\u201cemp_salary\u201d\u4e2d\u3002\u7576\u6e38\u6a19\u4e2d\u6c92\u6709\u66f4\u591a\u8a18\u9304\u6642\uff0c\u4f7f\u7528CONTINUE HANDLER\u4f86\u8655\u7406\u7d50\u675f\u60c5\u6cc1\uff0c\u4e26\u9000\u51fa\u5faa\u74b0\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-irbltwyrLt\">\u7d50\u8ad6<\/h2>\n<p>\u52d5\u614b\u6e38\u6a19\u5728DB2\u5b58\u5132\u904e\u7a0b\u4e2d\u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u6578\u64da\u8a2a\u554f\u65b9\u5f0f\uff0c\u7279\u5225\u9069\u5408\u9700\u8981\u5373\u6642\u53cd\u6620\u6578\u64da\u8b8a\u5316\u7684\u61c9\u7528\u5834\u666f\u3002\u901a\u904e\u4e0a\u8ff0\u7bc4\u4f8b\uff0c\u6211\u5011\u53ef\u4ee5\u770b\u5230\u5982\u4f55\u5728DB2\u4e2d\u6709\u6548\u5730\u4f7f\u7528\u52d5\u614b\u6e38\u6a19\u4f86\u67e5\u8a62\u548c\u8655\u7406\u6578\u64da\u3002\u638c\u63e1\u9019\u4e00\u6280\u8853\u5c07\u6709\u52a9\u65bc\u958b\u767c\u66f4\u9ad8\u6548\u7684\u8cc7\u6599\u5eab\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-irbltwyrLt\">\u7e3d\u7d50<\/h2>\n<p>\u5728DB2\u4e2d\u4f7f\u7528\u52d5\u614b\u6e38\u6a19\u7684\u5b58\u5132\u904e\u7a0b\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u9748\u6d3b\u6027\uff0c\u9084\u80fd\u589e\u5f37\u61c9\u7528\u7684\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684\u8cc7\u6599\u5eab\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22DB2\u5b58\u5132\u904e\u7a0b\u4e2d\u4f7f\u7528\u52d5\u614b\u6e38\u6a19\u7684\u5be6\u4f8b\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u7ba1\u7406\u6578\u64da\u67e5\u8a62\u548c\u64cd\u4f5c\u3002<\/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-60461","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60461","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=60461"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60461\/revisions"}],"predecessor-version":[{"id":60462,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60461\/revisions\/60462"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60461"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60461"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60461"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}