{"id":60459,"date":"2024-10-13T03:02:29","date_gmt":"2024-10-12T19:02:29","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60459\/"},"modified":"2024-10-13T03:02:29","modified_gmt":"2024-10-12T19:02:29","slug":"db2%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e5%b8%b8%e7%94%a8%e8%aa%9e%e5%8f%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60459\/","title":{"rendered":"db2\u5b58\u5132\u904e\u7a0b\u5e38\u7528\u8a9e\u53e5"},"content":{"rendered":"<h1 id=\"db2%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e5%b8%b8%e7%94%a8%e8%aa%9e%e5%8f%a5-uTbqamonIn\">DB2\u5b58\u5132\u904e\u7a0b\u5e38\u7528\u8a9e\u53e5<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u5b58\u5132\u904e\u7a0b\u662f\u4e00\u7a2e\u91cd\u8981\u7684\u529f\u80fd\uff0c\u7279\u5225\u662f\u5728IBM\u7684DB2\u6578\u64da\u5eab\u4e2d\u3002\u5b58\u5132\u904e\u7a0b\u5141\u8a31\u7528\u6236\u5c07\u591a\u500bSQL\u8a9e\u53e5\u5c01\u88dd\u5728\u4e00\u8d77\uff0c\u4e26\u4ee5\u4e00\u500b\u55ae\u4e00\u7684\u8abf\u7528\u4f86\u57f7\u884c\uff0c\u9019\u6a23\u4e0d\u50c5\u63d0\u9ad8\u4e86\u57f7\u884c\u6548\u7387\uff0c\u9084\u80fd\u589e\u5f37\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u5b8c\u6574\u6027\u3002\u672c\u6587\u5c07\u4ecb\u7d39DB2\u5b58\u5132\u904e\u7a0b\u7684\u5e38\u7528\u8a9e\u53e5\u53ca\u5176\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%ef%bc%9f-uTbqamonIn\">\u4ec0\u9ebc\u662f\u5b58\u5132\u904e\u7a0b\uff1f<\/h2>\n<p>\u5b58\u5132\u904e\u7a0b\u662f\u4e00\u7d44\u9810\u7de8\u8b6f\u7684SQL\u8a9e\u53e5\uff0c\u5b58\u5132\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u53ef\u4ee5\u901a\u904e\u8abf\u7528\u4f86\u57f7\u884c\u3002\u5b83\u5011\u53ef\u4ee5\u63a5\u53d7\u53c3\u6578\uff0c\u4e26\u8fd4\u56de\u7d50\u679c\uff0c\u9019\u4f7f\u5f97\u5b83\u5011\u5728\u8655\u7406\u8907\u96dc\u7684\u696d\u52d9\u908f\u8f2f\u6642\u975e\u5e38\u6709\u7528\u3002<\/p>\n<h2 id=\"%e5%89%b5%e5%bb%ba%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b-uTbqamonIn\">\u5275\u5efa\u5b58\u5132\u904e\u7a0b<\/h2>\n<p>\u5728DB2\u4e2d\uff0c\u5275\u5efa\u5b58\u5132\u904e\u7a0b\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>CREATE PROCEDURE procedure_name (IN param1 datatype, OUT param2 datatype)\nLANGUAGE SQL\nBEGIN\n    -- SQL\u8a9e\u53e5\nEND<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u5b58\u5132\u904e\u7a0b\uff0c\u5b83\u63a5\u53d7\u4e00\u500b\u54e1\u5de5ID\u4e26\u8fd4\u56de\u8a72\u54e1\u5de5\u7684\u59d3\u540d\uff1a<\/p>\n<pre><code>CREATE PROCEDURE GetEmployeeName (IN emp_id INT, OUT emp_name VARCHAR(100))\nLANGUAGE SQL\nBEGIN\n    SELECT name INTO emp_name FROM employees WHERE id = emp_id;\nEND<\/code><\/pre>\n<h2 id=\"%e8%aa%bf%e7%94%a8%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b-uTbqamonIn\">\u8abf\u7528\u5b58\u5132\u904e\u7a0b<\/h2>\n<p>\u8abf\u7528\u5b58\u5132\u904e\u7a0b\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>CALL procedure_name(parameter1, parameter2);<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u8abf\u7528\u4e0a\u9762\u5275\u5efa\u7684\u5b58\u5132\u904e\u7a0b\uff1a<\/p>\n<pre><code>CALL GetEmployeeName(1, emp_name);<\/code><\/pre>\n<h2 id=\"%e6%9b%b4%e6%96%b0%e6%95%b8%e6%93%9a%e7%9a%84%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b-uTbqamonIn\">\u66f4\u65b0\u6578\u64da\u7684\u5b58\u5132\u904e\u7a0b<\/h2>\n<p>\u5b58\u5132\u904e\u7a0b\u4e0d\u50c5\u53ef\u4ee5\u7528\u4f86\u67e5\u8a62\u6578\u64da\uff0c\u9084\u53ef\u4ee5\u7528\u4f86\u66f4\u65b0\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u66f4\u65b0\u54e1\u5de5\u85aa\u6c34\u7684\u5b58\u5132\u904e\u7a0b\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE PROCEDURE UpdateEmployeeSalary (IN emp_id INT, IN new_salary DECIMAL(10, 2))\nLANGUAGE SQL\nBEGIN\n    UPDATE employees SET salary = new_salary WHERE id = emp_id;\nEND<\/code><\/pre>\n<h2 id=\"%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%e7%9a%84%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b-uTbqamonIn\">\u522a\u9664\u6578\u64da\u7684\u5b58\u5132\u904e\u7a0b<\/h2>\n<p>\u540c\u6a23\uff0c\u6211\u5011\u4e5f\u53ef\u4ee5\u5275\u5efa\u4e00\u500b\u522a\u9664\u6578\u64da\u7684\u5b58\u5132\u904e\u7a0b\uff1a<\/p>\n<pre><code>CREATE PROCEDURE DeleteEmployee (IN emp_id INT)\nLANGUAGE SQL\nBEGIN\n    DELETE FROM employees WHERE id = emp_id;\nEND<\/code><\/pre>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e6%a2%9d%e4%bb%b6%e8%aa%9e%e5%8f%a5-uTbqamonIn\">\u4f7f\u7528\u689d\u4ef6\u8a9e\u53e5<\/h2>\n<p>\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u689d\u4ef6\u8a9e\u53e5\u4f86\u63a7\u5236\u6d41\u7a0b\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u6839\u64da\u54e1\u5de5\u7684\u85aa\u6c34\u4f86\u6c7a\u5b9a\u662f\u5426\u7d66\u4e88\u734e\u91d1\uff1a<\/p>\n<pre><code>CREATE PROCEDURE EvaluateBonus (IN emp_id INT)\nLANGUAGE SQL\nBEGIN\n    DECLARE emp_salary DECIMAL(10, 2);\n    SELECT salary INTO emp_salary FROM employees WHERE id = emp_id;\n\n    IF emp_salary &gt; 50000 THEN\n        -- \u7d66\u4e88\u734e\u91d1\u7684\u908f\u8f2f\n    ELSE\n        -- \u4e0d\u7d66\u4e88\u734e\u91d1\u7684\u908f\u8f2f\n    END IF;\nEND<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-uTbqamonIn\">\u7e3d\u7d50<\/h2>\n<p>DB2\u5b58\u5132\u904e\u7a0b\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u7c21\u5316\u6578\u64da\u64cd\u4f5c\uff0c\u63d0\u5347\u6027\u80fd\u548c\u5b89\u5168\u6027\u3002\u901a\u904e\u4f7f\u7528\u5b58\u5132\u904e\u7a0b\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5c07\u8907\u96dc\u7684\u696d\u52d9\u908f\u8f2f\u5c01\u88dd\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u5f9e\u800c\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u6548\u7387\u548c\u53ef\u7dad\u8b77\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u82e5\u60a8\u5c0d\u65bc<code><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/code>\u6216<code><a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a><\/code>\u6709\u8208\u8da3\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22DB2\u5b58\u5132\u904e\u7a0b\u4e2d\u7684\u5e38\u7528\u8a9e\u53e5\uff0c\u63d0\u5347\u6578\u64da\u5eab\u64cd\u4f5c\u6548\u7387\uff0c\u7c21\u5316\u958b\u767c\u6d41\u7a0b\uff0c\u52a9\u529b\u6578\u64da\u7ba1\u7406\u8207\u61c9\u7528\u958b\u767c\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-60459","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60459","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=60459"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60459\/revisions"}],"predecessor-version":[{"id":60460,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60459\/revisions\/60460"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60459"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60459"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}