{"id":60979,"date":"2024-10-13T07:25:12","date_gmt":"2024-10-12T23:25:12","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60979\/"},"modified":"2024-10-13T07:25:12","modified_gmt":"2024-10-12T23:25:12","slug":"db2%e4%b8%ad%e5%89%b5%e5%bb%ba%e5%92%8c%e4%bd%bf%e7%94%a8sql%e7%94%a8%e6%88%b6%e5%ae%9a%e7%be%a9%e5%87%bd%e6%95%b8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60979\/","title":{"rendered":"DB2\u4e2d\u5275\u5efa\u548c\u4f7f\u7528SQL\u7528\u6236\u5b9a\u7fa9\u51fd\u6578"},"content":{"rendered":"<h1 id=\"db2%e4%b8%ad%e5%89%b5%e5%bb%ba%e5%92%8c%e4%bd%bf%e7%94%a8sql%e7%94%a8%e6%88%b6%e5%ae%9a%e7%be%a9%e5%87%bd%e6%95%b8-BqckaZDUBl\">DB2\u4e2d\u5275\u5efa\u548c\u4f7f\u7528SQL\u7528\u6236\u5b9a\u7fa9\u51fd\u6578<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u7528\u6236\u5b9a\u7fa9\u51fd\u6578\uff08UDF\uff09\u662f\u4e00\u7a2e\u5f37\u5927\u7684\u5de5\u5177\uff0c\u5141\u8a31\u7528\u6236\u6839\u64da\u7279\u5b9a\u9700\u6c42\u5275\u5efa\u81ea\u5b9a\u7fa9\u7684\u529f\u80fd\u3002IBM\u7684DB2\u6578\u64da\u5eab\u7cfb\u7d71\u652f\u6301\u7528\u6236\u5b9a\u7fa9\u51fd\u6578\uff0c\u9019\u4f7f\u5f97\u7528\u6236\u80fd\u5920\u64f4\u5c55SQL\u7684\u529f\u80fd\uff0c\u5be6\u73fe\u66f4\u8907\u96dc\u7684\u6578\u64da\u8655\u7406\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728DB2\u4e2d\u5275\u5efa\u548c\u4f7f\u7528SQL\u7528\u6236\u5b9a\u7fa9\u51fd\u6578\u3002<\/p>\n<h2 id=\"%e7%94%a8%e6%88%b6%e5%ae%9a%e7%be%a9%e5%87%bd%e6%95%b8%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-BqckaZDUBl\">\u7528\u6236\u5b9a\u7fa9\u51fd\u6578\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u7528\u6236\u5b9a\u7fa9\u51fd\u6578\u662f\u4e00\u7a2e\u53ef\u4ee5\u5728SQL\u67e5\u8a62\u4e2d\u8abf\u7528\u7684\u81ea\u5b9a\u7fa9\u51fd\u6578\u3002\u5b83\u5011\u53ef\u4ee5\u63a5\u53d7\u53c3\u6578\u4e26\u8fd4\u56de\u503c\uff0c\u9019\u4f7f\u5f97\u5b83\u5011\u5728\u6578\u64da\u8655\u7406\u548c\u8a08\u7b97\u4e2d\u975e\u5e38\u6709\u7528\u3002DB2\u652f\u6301\u591a\u7a2e\u985e\u578b\u7684\u7528\u6236\u5b9a\u7fa9\u51fd\u6578\uff0c\u5305\u62ec\u6a19\u91cf\u51fd\u6578\u548c\u8868\u51fd\u6578\u3002<\/p>\n<h3 id=\"%e6%a8%99%e9%87%8f%e5%87%bd%e6%95%b8%e8%88%87%e8%a1%a8%e5%87%bd%e6%95%b8-BqckaZDUBl\">\u6a19\u91cf\u51fd\u6578\u8207\u8868\u51fd\u6578<\/h3>\n<ul>\n<li><strong>\u6a19\u91cf\u51fd\u6578\uff1a<\/strong>\u8fd4\u56de\u55ae\u4e00\u503c\uff0c\u901a\u5e38\u7528\u65bc\u8a08\u7b97\u6216\u8f49\u63db\u6578\u64da\u3002<\/li>\n<li><strong>\u8868\u51fd\u6578\uff1a<\/strong>\u8fd4\u56de\u4e00\u500b\u8868\uff0c\u901a\u5e38\u7528\u65bc\u751f\u6210\u4e00\u7d44\u7d50\u679c\u96c6\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%89%b5%e5%bb%ba%e7%94%a8%e6%88%b6%e5%ae%9a%e7%be%a9%e5%87%bd%e6%95%b8%e7%9a%84%e6%ad%a5%e9%a9%9f-BqckaZDUBl\">\u5275\u5efa\u7528\u6236\u5b9a\u7fa9\u51fd\u6578\u7684\u6b65\u9a5f<\/h2>\n<p>\u5728DB2\u4e2d\u5275\u5efa\u7528\u6236\u5b9a\u7fa9\u51fd\u6578\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>CREATE FUNCTION \u51fd\u6578\u540d\u7a31 (\u53c3\u6578\u985e\u578b)\nRETURNS \u8fd4\u56de\u985e\u578b\nLANGUAGE SQL\nDETERMINISTIC\nRETURN\n    \u8868\u9054\u5f0f;<\/code><\/pre>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u4f8b\u5b50\uff0c\u5c55\u793a\u5982\u4f55\u5275\u5efa\u4e00\u500b\u8a08\u7b97\u5169\u500b\u6574\u6578\u548c\u7684\u6a19\u91cf\u51fd\u6578\uff1a<\/p>\n<pre><code>CREATE FUNCTION add_numbers (a INT, b INT)\nRETURNS INT\nLANGUAGE SQL\nDETERMINISTIC\nRETURN a + b;<\/code><\/pre>\n<h3 id=\"%e4%bd%bf%e7%94%a8%e7%94%a8%e6%88%b6%e5%ae%9a%e7%be%a9%e5%87%bd%e6%95%b8-BqckaZDUBl\">\u4f7f\u7528\u7528\u6236\u5b9a\u7fa9\u51fd\u6578<\/h3>\n<p>\u5275\u5efa\u5b8c\u7528\u6236\u5b9a\u7fa9\u51fd\u6578\u5f8c\uff0c\u53ef\u4ee5\u5728SQL\u67e5\u8a62\u4e2d\u8abf\u7528\u5b83\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528\u4e0a\u9762\u5275\u5efa\u7684\u51fd\u6578\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT add_numbers(5, 10) AS result FROM SYSIBM.SYSDUMMY1;<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de15\uff0c\u56e0\u70ba\u5b83\u8a08\u7b97\u4e865\u548c10\u7684\u548c\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-BqckaZDUBl\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u5275\u5efa\u7528\u6236\u5b9a\u7fa9\u51fd\u6578\u6642\uff0c\u6709\u5e7e\u500b\u6ce8\u610f\u4e8b\u9805\u9700\u8981\u8003\u616e\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u51fd\u6578\u540d\u7a31\u552f\u4e00\uff0c\u907f\u514d\u8207\u73fe\u6709\u7684\u7cfb\u7d71\u51fd\u6578\u885d\u7a81\u3002<\/li>\n<li>\u4f7f\u7528\u9069\u7576\u7684\u6578\u64da\u985e\u578b\uff0c\u78ba\u4fdd\u53c3\u6578\u548c\u8fd4\u56de\u503c\u7684\u517c\u5bb9\u6027\u3002<\/li>\n<li>\u8003\u616e\u6027\u80fd\uff0c\u904e\u65bc\u8907\u96dc\u7684\u51fd\u6578\u53ef\u80fd\u6703\u5f71\u97ff\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-BqckaZDUBl\">\u7d50\u8ad6<\/h2>\n<p>\u7528\u6236\u5b9a\u7fa9\u51fd\u6578\u5728DB2\u4e2d\u63d0\u4f9b\u4e86\u9748\u6d3b\u6027\u548c\u64f4\u5c55\u6027\uff0c\u5141\u8a31\u7528\u6236\u6839\u64da\u7279\u5b9a\u9700\u6c42\u5275\u5efa\u81ea\u5b9a\u7fa9\u7684\u6578\u64da\u8655\u7406\u908f\u8f2f\u3002\u901a\u904e\u6b63\u78ba\u5730\u5275\u5efa\u548c\u4f7f\u7528\u9019\u4e9b\u51fd\u6578\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u67e5\u8a62\u7684\u6548\u7387\u548c\u53ef\u8b80\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bcDB2\u7684\u7528\u6236\u5b9a\u7fa9\u51fd\u6578\u6709\u9032\u4e00\u6b65\u7684\u8208\u8da3\uff0c\u6216\u5e0c\u671b\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<code><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/code>\u548c<code><a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a><\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u6e90\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728DB2\u4e2d\u5275\u5efa\u548c\u4f7f\u7528SQL\u7528\u6236\u5b9a\u7fa9\u51fd\u6578\uff0c\u63d0\u5347\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u9748\u6d3b\u6027\u548c\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-60979","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60979","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=60979"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60979\/revisions"}],"predecessor-version":[{"id":60980,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60979\/revisions\/60980"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60979"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60979"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60979"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}