{"id":171881,"date":"2024-11-07T08:27:16","date_gmt":"2024-11-07T00:27:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/171881\/"},"modified":"2024-11-07T08:27:17","modified_gmt":"2024-11-07T00:27:17","slug":"%e8%bc%95%e9%ac%86%e5%ad%b8%e7%bf%92%ef%bc%9a%e6%95%b8%e6%93%9a%e5%ba%ab%e5%87%bd%e6%95%b8%e7%b7%a8%e5%af%ab%e6%8a%80%e5%b7%a7%e5%a4%a7%e6%8f%ad%e7%a7%98%ef%bc%81-%e6%80%8e%e9%ba%bc%e5%af%ab%e4%b8%80","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/171881\/","title":{"rendered":"\u8f15\u9b06\u5b78\u7fd2\uff1a\u6578\u64da\u5eab\u51fd\u6578\u7de8\u5beb\u6280\u5de7\u5927\u63ed\u79d8\uff01 (\u600e\u9ebc\u5beb\u4e00\u500b\u6578\u64da\u5eab\u51fd\u6578)"},"content":{"rendered":"<h1 id=\"%e8%bc%95%e9%ac%86%e5%ad%b8%e7%bf%92%ef%bc%9a%e6%95%b8%e6%93%9a%e5%ba%ab%e5%87%bd%e6%95%b8%e7%b7%a8%e5%af%ab%e6%8a%80%e5%b7%a7%e5%a4%a7%e6%8f%ad%e7%a7%98%ef%bc%81-vpjVnnrFcy\">\u8f15\u9b06\u5b78\u7fd2\uff1a\u6578\u64da\u5eab\u51fd\u6578\u7de8\u5beb\u6280\u5de7\u5927\u63ed\u79d8\uff01<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u6578\u64da\u5eab\u7684\u4f7f\u7528\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u666e\u904d\u3002\u7121\u8ad6\u662f\u4f01\u696d\u9084\u662f\u500b\u4eba\u958b\u767c\u8005\uff0c\u638c\u63e1\u6578\u64da\u5eab\u51fd\u6578\u7684\u7de8\u5beb\u6280\u5de7\u90fd\u662f\u4e00\u9805\u91cd\u8981\u7684\u6280\u80fd\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u7de8\u5beb\u6578\u64da\u5eab\u51fd\u6578\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u6280\u5de7\u548c\u7bc4\u4f8b\uff0c\u5e6b\u52a9\u8b80\u8005\u8f15\u9b06\u4e0a\u624b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%95%b8%e6%93%9a%e5%ba%ab%e5%87%bd%e6%95%b8%ef%bc%9f-vpjVnnrFcy\">\u4ec0\u9ebc\u662f\u6578\u64da\u5eab\u51fd\u6578\uff1f<\/h2>\n<p>\u6578\u64da\u5eab\u51fd\u6578\u662f\u6307\u5728\u6578\u64da\u5eab\u4e2d\u5b9a\u7fa9\u7684\u53ef\u91cd\u7528\u4ee3\u78bc\u584a\uff0c\u901a\u5e38\u7528\u65bc\u57f7\u884c\u7279\u5b9a\u7684\u8a08\u7b97\u6216\u64cd\u4f5c\u3002\u9019\u4e9b\u51fd\u6578\u53ef\u4ee5\u63a5\u6536\u8f38\u5165\u53c3\u6578\uff0c\u4e26\u8fd4\u56de\u7d50\u679c\uff0c\u5f9e\u800c\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6548\u7387\u548c\u53ef\u8b80\u6027\u3002\u6578\u64da\u5eab\u51fd\u6578\u901a\u5e38\u7528\u65bc\u6578\u64da\u67e5\u8a62\u3001\u6578\u64da\u8f49\u63db\u548c\u6578\u64da\u9a57\u8b49\u7b49\u5834\u666f\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e8%a6%81%e4%bd%bf%e7%94%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e5%87%bd%e6%95%b8%ef%bc%9f-vpjVnnrFcy\">\u70ba\u4ec0\u9ebc\u8981\u4f7f\u7528\u6578\u64da\u5eab\u51fd\u6578\uff1f<\/h2>\n<ul>\n<li><strong>\u91cd\u7528\u6027\uff1a<\/strong>\u51fd\u6578\u53ef\u4ee5\u5728\u591a\u500b\u67e5\u8a62\u4e2d\u91cd\u8907\u4f7f\u7528\uff0c\u6e1b\u5c11\u4ee3\u78bc\u91cd\u8907\u3002<\/li>\n<li><strong>\u53ef\u7dad\u8b77\u6027\uff1a<\/strong>\u5c07\u908f\u8f2f\u5c01\u88dd\u5728\u51fd\u6578\u4e2d\uff0c\u4f7f\u5f97\u4ee3\u78bc\u66f4\u6613\u65bc\u7dad\u8b77\u548c\u66f4\u65b0\u3002<\/li>\n<li><strong>\u6027\u80fd\u512a\u5316\uff1a<\/strong>\u5728\u6578\u64da\u5eab\u5c64\u9762\u9032\u884c\u8a08\u7b97\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u50b3\u8f38\uff0c\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e7%b7%a8%e5%af%ab%e6%95%b8%e6%93%9a%e5%ba%ab%e5%87%bd%e6%95%b8-vpjVnnrFcy\">\u5982\u4f55\u7de8\u5beb\u6578\u64da\u5eab\u51fd\u6578<\/h2>\n<p>\u7de8\u5beb\u6578\u64da\u5eab\u51fd\u6578\u7684\u904e\u7a0b\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e7%a2%ba%e5%ae%9a%e5%87%bd%e6%95%b8%e7%9a%84%e7%9b%ae%e7%9a%84-vpjVnnrFcy\">1. \u78ba\u5b9a\u51fd\u6578\u7684\u76ee\u7684<\/h3>\n<p>\u5728\u958b\u59cb\u7de8\u5beb\u51fd\u6578\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u660e\u78ba\u51fd\u6578\u7684\u76ee\u7684\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u80fd\u5e0c\u671b\u5275\u5efa\u4e00\u500b\u51fd\u6578\u4f86\u8a08\u7b97\u67d0\u500b\u5b57\u6bb5\u7684\u5e73\u5747\u503c\uff0c\u6216\u8005\u6aa2\u67e5\u67d0\u500b\u689d\u4ef6\u662f\u5426\u6210\u7acb\u3002<\/p>\n<h3 id=\"2-%e5%ae%9a%e7%be%a9%e5%87%bd%e6%95%b8%e7%9a%84%e7%b5%90%e6%a7%8b-vpjVnnrFcy\">2. \u5b9a\u7fa9\u51fd\u6578\u7684\u7d50\u69cb<\/h3>\n<p>\u6578\u64da\u5eab\u51fd\u6578\u7684\u57fa\u672c\u7d50\u69cb\u901a\u5e38\u5305\u62ec\u51fd\u6578\u540d\u7a31\u3001\u53c3\u6578\u5217\u8868\u548c\u8fd4\u56de\u985e\u578b\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>CREATE FUNCTION calculate_average (input_value1 FLOAT, input_value2 FLOAT)\nRETURNS FLOAT\nBEGIN\n    DECLARE average_value FLOAT;\n    SET average_value = (input_value1 + input_value2) \/ 2;\n    RETURN average_value;\nEND;<\/code><\/pre>\n<h3 id=\"3-%e5%af%a6%e7%8f%be%e5%87%bd%e6%95%b8%e9%82%8f%e8%bc%af-vpjVnnrFcy\">3. \u5be6\u73fe\u51fd\u6578\u908f\u8f2f<\/h3>\n<p>\u5728\u51fd\u6578\u7684\u4e3b\u9ad4\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 SQL \u8a9e\u53e5\u4f86\u5be6\u73fe\u6240\u9700\u7684\u908f\u8f2f\u3002\u53ef\u4ee5\u4f7f\u7528\u8b8a\u91cf\u4f86\u5b58\u5132\u4e2d\u9593\u7d50\u679c\uff0c\u4e26\u5728\u6700\u5f8c\u8fd4\u56de\u7d50\u679c\u3002<\/p>\n<h3 id=\"4-%e6%b8%ac%e8%a9%a6%e5%87%bd%e6%95%b8-vpjVnnrFcy\">4. \u6e2c\u8a66\u51fd\u6578<\/h3>\n<p>\u7de8\u5beb\u5b8c\u51fd\u6578\u5f8c\uff0c\u52d9\u5fc5\u9032\u884c\u6e2c\u8a66\u4ee5\u78ba\u4fdd\u5176\u6b63\u78ba\u6027\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\u4f86\u8abf\u7528\u51fd\u6578\u4e26\u6aa2\u67e5\u7d50\u679c\uff1a<\/p>\n<pre><code>SELECT calculate_average(10, 20); -- \u61c9\u8fd4\u56de 15<\/code><\/pre>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e5%87%bd%e6%95%b8%e7%9a%84%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-vpjVnnrFcy\">\u6578\u64da\u5eab\u51fd\u6578\u7684\u6700\u4f73\u5be6\u8e10<\/h2>\n<ul>\n<li><strong>\u547d\u540d\u898f\u5247\uff1a<\/strong>\u4f7f\u7528\u6e05\u6670\u4e14\u5177\u63cf\u8ff0\u6027\u7684\u540d\u7a31\uff0c\u4ee5\u4fbf\u65bc\u7406\u89e3\u51fd\u6578\u7684\u7528\u9014\u3002<\/li>\n<li><strong>\u53c3\u6578\u9a57\u8b49\uff1a<\/strong>\u5728\u51fd\u6578\u4e2d\u6dfb\u52a0\u53c3\u6578\u9a57\u8b49\u908f\u8f2f\uff0c\u4ee5\u78ba\u4fdd\u8f38\u5165\u7684\u6709\u6548\u6027\u3002<\/li>\n<li><strong>\u6027\u80fd\u8003\u91cf\uff1a<\/strong>\u907f\u514d\u5728\u51fd\u6578\u4e2d\u4f7f\u7528\u904e\u65bc\u8907\u96dc\u7684\u67e5\u8a62\uff0c\u9019\u53ef\u80fd\u6703\u5f71\u97ff\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-vpjVnnrFcy\">\u7d50\u8ad6<\/h2>\n<p>\u7de8\u5beb\u6578\u64da\u5eab\u51fd\u6578\u662f\u4e00\u9805\u91cd\u8981\u7684\u6280\u80fd\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u63d0\u9ad8\u4ee3\u78bc\u7684\u53ef\u91cd\u7528\u6027\u548c\u53ef\u7dad\u8b77\u6027\u3002\u901a\u904e\u672c\u6587\u4ecb\u7d39\u7684\u6280\u5de7\u548c\u7bc4\u4f8b\uff0c\u60a8\u61c9\u8a72\u80fd\u5920\u958b\u59cb\u7de8\u5beb\u81ea\u5df1\u7684\u6578\u64da\u5eab\u51fd\u6578\uff0c\u4e26\u5728\u5be6\u969b\u9805\u76ee\u4e2d\u61c9\u7528\u9019\u4e9b\u77e5\u8b58\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u7684\u4f7f\u7528\u6709\u66f4\u6df1\u5165\u7684\u9700\u6c42\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u642d\u5efa\u60a8\u7684\u6578\u64da\u5eab\u74b0\u5883\uff0c\u4eab\u53d7\u66f4\u9ad8\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1\u6578\u64da\u5eab\u51fd\u6578\u7de8\u5beb\u6280\u5de7\uff0c\u8f15\u9b06\u5b78\u7fd2\u5982\u4f55\u5275\u5efa\u9ad8\u6548\u51fd\u6578\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u80fd\u529b\uff0c\u8b93\u4f60\u7684\u6578\u64da\u5eab\u64cd\u4f5c\u66f4\u7c21\u55ae\uff01<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-171881","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171881","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=171881"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171881\/revisions"}],"predecessor-version":[{"id":171882,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171881\/revisions\/171882"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=171881"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=171881"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=171881"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}