{"id":60721,"date":"2024-10-13T05:15:19","date_gmt":"2024-10-12T21:15:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60721\/"},"modified":"2024-10-13T05:15:19","modified_gmt":"2024-10-12T21:15:19","slug":"db2%e6%95%b8%e6%93%9a%e5%ba%ab%e5%8b%95%e6%85%8bsql%e5%92%8c%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e8%88%87%e6%9f%a5%e7%9c%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60721\/","title":{"rendered":"DB2\u6578\u64da\u5eab\u52d5\u614bSQL\u548c\u5b58\u5132\u904e\u7a0b\u8207\u67e5\u770b"},"content":{"rendered":"<h1 id=\"db2%e6%95%b8%e6%93%9a%e5%ba%ab%e5%8b%95%e6%85%8bsql%e5%92%8c%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e8%88%87%e6%9f%a5%e7%9c%8b-jMvldtExCz\">DB2\u6578\u64da\u5eab\u52d5\u614bSQL\u548c\u5b58\u5132\u904e\u7a0b\u8207\u67e5\u770b<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u6578\u64da\u5eab\u7684\u7ba1\u7406\u548c\u64cd\u4f5c\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002DB2\u4f5c\u70baIBM\u7684\u4e00\u6b3e\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u529f\u80fd\u4f86\u652f\u6301\u6578\u64da\u7684\u5b58\u5132\u548c\u67e5\u8a62\u3002\u5176\u4e2d\uff0c\u52d5\u614bSQL\u548c\u5b58\u5132\u904e\u7a0b\u662fDB2\u4e2d\u5169\u500b\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u5169\u8005\u7684\u7279\u9ede\u53ca\u5176\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%8b%95%e6%85%8bsql%ef%bc%9f-jMvldtExCz\">\u4ec0\u9ebc\u662f\u52d5\u614bSQL\uff1f<\/h2>\n<p>\u52d5\u614bSQL\u662f\u6307\u5728\u7a0b\u5e8f\u904b\u884c\u6642\u751f\u6210\u548c\u57f7\u884c\u7684SQL\u8a9e\u53e5\u3002\u8207\u975c\u614bSQL\u4e0d\u540c\uff0c\u975c\u614bSQL\u5728\u7de8\u8b6f\u6642\u5c31\u5df2\u7d93\u78ba\u5b9a\u4e86\u8a9e\u53e5\u7684\u7d50\u69cb\uff0c\u800c\u52d5\u614bSQL\u5247\u5141\u8a31\u958b\u767c\u8005\u5728\u904b\u884c\u6642\u6839\u64da\u9700\u8981\u751f\u6210SQL\u8a9e\u53e5\u3002\u9019\u7a2e\u9748\u6d3b\u6027\u4f7f\u5f97\u52d5\u614bSQL\u5728\u8655\u7406\u8b8a\u5316\u591a\u7aef\u7684\u67e5\u8a62\u9700\u6c42\u6642\u975e\u5e38\u6709\u7528\u3002<\/p>\n<h3 id=\"%e5%8b%95%e6%85%8bsql%e7%9a%84%e5%84%aa%e5%8b%a2-jMvldtExCz\">\u52d5\u614bSQL\u7684\u512a\u52e2<\/h3>\n<ul>\n<li><strong>\u9748\u6d3b\u6027\uff1a<\/strong>\u52d5\u614bSQL\u53ef\u4ee5\u6839\u64da\u7528\u6236\u7684\u8f38\u5165\u6216\u5176\u4ed6\u689d\u4ef6\u751f\u6210\u4e0d\u540c\u7684\u67e5\u8a62\uff0c\u9019\u4f7f\u5f97\u61c9\u7528\u7a0b\u5e8f\u80fd\u5920\u66f4\u597d\u5730\u9069\u61c9\u8b8a\u5316\u3002<\/li>\n<li><strong>\u7c21\u5316\u4ee3\u78bc\uff1a<\/strong>\u901a\u904e\u4f7f\u7528\u52d5\u614bSQL\uff0c\u53ef\u4ee5\u6e1b\u5c11\u91cd\u8907\u7684\u4ee3\u78bc\uff0c\u56e0\u70ba\u540c\u4e00\u6bb5\u4ee3\u78bc\u53ef\u4ee5\u8655\u7406\u591a\u7a2e\u67e5\u8a62\u60c5\u6cc1\u3002<\/li>\n<li><strong>\u63d0\u9ad8\u6027\u80fd\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u52d5\u614bSQL\u53ef\u4ee5\u901a\u904e\u751f\u6210\u66f4\u512a\u5316\u7684\u67e5\u8a62\u4f86\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h3 id=\"%e5%8b%95%e6%85%8bsql%e7%9a%84%e4%bd%bf%e7%94%a8%e7%a4%ba%e4%be%8b-jMvldtExCz\">\u52d5\u614bSQL\u7684\u4f7f\u7528\u793a\u4f8b<\/h3>\n<pre><code>\nDECLARE stmt VARCHAR(1000);\nSET stmt = 'SELECT * FROM employees WHERE department = ?';\nPREPARE stmt FROM stmt;\nEXECUTE stmt USING 'Sales';\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u8072\u660e\u4e86\u4e00\u500b\u8b8a\u91cf\u4f86\u5b58\u5132SQL\u8a9e\u53e5\uff0c\u7136\u5f8c\u4f7f\u7528PREPARE\u8a9e\u53e5\u6e96\u5099\u9019\u500bSQL\uff0c\u6700\u5f8c\u4f7f\u7528EXECUTE\u8a9e\u53e5\u57f7\u884c\u5b83\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-jMvldtExCz\">\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\u9019\u4e9b\u8a9e\u53e5\u88ab\u5b58\u5132\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u53ef\u4ee5\u88ab\u61c9\u7528\u7a0b\u5e8f\u8abf\u7528\u3002\u5b58\u5132\u904e\u7a0b\u7684\u4e3b\u8981\u76ee\u7684\u662f\u63d0\u9ad8\u6027\u80fd\u548c\u5b89\u5168\u6027\uff0c\u56e0\u70ba\u5b83\u5011\u53ef\u4ee5\u6e1b\u5c11\u7db2\u7d61\u6d41\u91cf\u4e26\u9632\u6b62SQL\u6ce8\u5165\u653b\u64ca\u3002<\/p>\n<h3 id=\"%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e7%9a%84%e5%84%aa%e5%8b%a2-jMvldtExCz\">\u5b58\u5132\u904e\u7a0b\u7684\u512a\u52e2<\/h3>\n<ul>\n<li><strong>\u6027\u80fd\u63d0\u5347\uff1a<\/strong>\u7531\u65bc\u5b58\u5132\u904e\u7a0b\u662f\u9810\u7de8\u8b6f\u7684\uff0c\u56e0\u6b64\u5728\u57f7\u884c\u6642\u4e0d\u9700\u8981\u518d\u6b21\u7de8\u8b6f\uff0c\u9019\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<li><strong>\u5b89\u5168\u6027\uff1a<\/strong>\u901a\u904e\u4f7f\u7528\u5b58\u5132\u904e\u7a0b\uff0c\u53ef\u4ee5\u9650\u5236\u7528\u6236\u5c0d\u6578\u64da\u5eab\u7684\u76f4\u63a5\u8a2a\u554f\uff0c\u5f9e\u800c\u63d0\u9ad8\u5b89\u5168\u6027\u3002<\/li>\n<li><strong>\u4ee3\u78bc\u91cd\u7528\uff1a<\/strong>\u5b58\u5132\u904e\u7a0b\u53ef\u4ee5\u88ab\u591a\u500b\u61c9\u7528\u7a0b\u5e8f\u8abf\u7528\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u4ee3\u78bc\u7684\u91cd\u8907\u3002<\/li>\n<\/ul>\n<h3 id=\"%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e7%9a%84%e4%bd%bf%e7%94%a8%e7%a4%ba%e4%be%8b-jMvldtExCz\">\u5b58\u5132\u904e\u7a0b\u7684\u4f7f\u7528\u793a\u4f8b<\/h3>\n<pre><code>\nCREATE PROCEDURE GetEmployeesByDepartment(IN dept VARCHAR(50))\nBEGIN\n    SELECT * FROM employees WHERE department = dept;\nEND;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70baGetEmployeesByDepartment\u7684\u5b58\u5132\u904e\u7a0b\uff0c\u8a72\u904e\u7a0b\u63a5\u53d7\u4e00\u500b\u90e8\u9580\u540d\u7a31\u4f5c\u70ba\u53c3\u6578\uff0c\u4e26\u8fd4\u56de\u8a72\u90e8\u9580\u7684\u6240\u6709\u54e1\u5de5\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e6%9f%a5%e7%9c%8b%e5%8b%95%e6%85%8bsql%e5%92%8c%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b-jMvldtExCz\">\u5982\u4f55\u67e5\u770b\u52d5\u614bSQL\u548c\u5b58\u5132\u904e\u7a0b<\/h2>\n<p>\u5728DB2\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u7cfb\u7d71\u76ee\u9304\u8868\u4f86\u67e5\u770b\u5df2\u7d93\u5275\u5efa\u7684\u5b58\u5132\u904e\u7a0b\u548c\u52d5\u614bSQL\u7684\u57f7\u884c\u8a08\u5283\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n<pre><code>\n-- \u67e5\u770b\u6240\u6709\u5b58\u5132\u904e\u7a0b\nSELECT * FROM SYSIBM.SYSPROCEDURES;\n\n-- \u67e5\u770b\u52d5\u614bSQL\u7684\u57f7\u884c\u8a08\u5283\nSELECT * FROM SYSIBM.SYSEXECUTIONPLANS WHERE PLANNAME = 'your_plan_name';\n<\/code><\/pre>\n<p>\u9019\u4e9b\u67e5\u8a62\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u4e86\u89e3\u6578\u64da\u5eab\u4e2d\u5df2\u5b58\u5728\u7684\u5b58\u5132\u904e\u7a0b\u548c\u52d5\u614bSQL\u7684\u57f7\u884c\u60c5\u6cc1\uff0c\u5f9e\u800c\u9032\u884c\u76f8\u61c9\u7684\u512a\u5316\u548c\u8abf\u6574\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-jMvldtExCz\">\u7e3d\u7d50<\/h2>\n<p>\u52d5\u614bSQL\u548c\u5b58\u5132\u904e\u7a0b\u662fDB2\u6578\u64da\u5eab\u4e2d\u975e\u5e38\u91cd\u8981\u7684\u529f\u80fd\uff0c\u5b83\u5011\u5404\u81ea\u5177\u6709\u7368\u7279\u7684\u512a\u52e2\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u9ad8\u6548\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\u3002\u901a\u904e\u9748\u6d3b\u5730\u4f7f\u7528\u9019\u4e9b\u529f\u80fd\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u5b89\u5168\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\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\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22DB2\u6578\u64da\u5eab\u4e2d\u7684\u52d5\u614bSQL\u548c\u5b58\u5132\u904e\u7a0b\uff0c\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u67e5\u770b\u548c\u7ba1\u7406\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\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-60721","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60721","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=60721"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60721\/revisions"}],"predecessor-version":[{"id":60722,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60721\/revisions\/60722"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}