{"id":170191,"date":"2024-11-06T21:54:20","date_gmt":"2024-11-06T13:54:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/170191\/"},"modified":"2024-11-06T21:54:21","modified_gmt":"2024-11-06T13:54:21","slug":"%e5%88%a4%e6%96%b7%e9%96%8f%e5%b9%b4%e7%9a%84sql%e5%87%bd%e6%95%b8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/170191\/","title":{"rendered":"\u5224\u65b7\u958f\u5e74\u7684SQL\u51fd\u6578"},"content":{"rendered":"<h1 id=\"%e5%88%a4%e6%96%b7%e9%96%8f%e5%b9%b4%e7%9a%84sql%e5%87%bd%e6%95%b8-cBNcvkxIkJ\">\u5224\u65b7\u958f\u5e74\u7684SQL\u51fd\u6578<\/h1>\n<p>\u958f\u5e74\u662f\u6307\u5728\u516c\u66c6\u4e2d\uff0c\u70ba\u4e86\u8abf\u6574\u5e74\u5ea6\u8207\u5929\u6587\u5e74\u4e4b\u9593\u7684\u5dee\u7570\uff0c\u6240\u589e\u52a0\u7684\u4e00\u5e74\u3002\u6839\u64da\u898f\u5247\uff0c\u958f\u5e74\u662f\u80fd\u88ab4\u6574\u9664\u7684\u5e74\u4efd\uff0c\u4f46\u5982\u679c\u8a72\u5e74\u4efd\u80fd\u88ab100\u6574\u9664\uff0c\u5247\u5fc5\u9808\u540c\u6642\u80fd\u88ab400\u6574\u9664\uff0c\u624d\u7b97\u958f\u5e74\u3002\u9019\u4e9b\u898f\u5247\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\u7d93\u5e38\u9700\u8981\u7528\u5230\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u65e5\u671f\u548c\u6642\u9593\u7684\u61c9\u7528\u4e2d\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728SQL\u4e2d\u5224\u65b7\u958f\u5e74\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u51fd\u6578\u7bc4\u4f8b\u3002<\/p>\n<h2 id=\"%e9%96%8f%e5%b9%b4%e7%9a%84%e5%88%a4%e6%96%b7%e8%a6%8f%e5%89%87-cBNcvkxIkJ\">\u958f\u5e74\u7684\u5224\u65b7\u898f\u5247<\/h2>\n<p>\u6839\u64da\u516c\u66c6\u7684\u898f\u5247\uff0c\u958f\u5e74\u7684\u5224\u65b7\u53ef\u4ee5\u7e3d\u7d50\u70ba\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li>\u5982\u679c\u5e74\u4efd\u80fd\u88ab4\u6574\u9664\uff0c\u5247\u53ef\u80fd\u662f\u958f\u5e74\u3002<\/li>\n<li>\u5982\u679c\u5e74\u4efd\u80fd\u88ab100\u6574\u9664\uff0c\u5247\u5fc5\u9808\u80fd\u88ab400\u6574\u9664\uff0c\u624d\u7b97\u958f\u5e74\u3002<\/li>\n<li>\u5982\u679c\u5e74\u4efd\u4e0d\u80fd\u88ab4\u6574\u9664\uff0c\u5247\u4e0d\u662f\u958f\u5e74\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%9c%a8sql%e4%b8%ad%e5%af%a6%e7%8f%be%e9%96%8f%e5%b9%b4%e5%88%a4%e6%96%b7-cBNcvkxIkJ\">\u5728SQL\u4e2d\u5be6\u73fe\u958f\u5e74\u5224\u65b7<\/h2>\n<p>\u5728SQL\u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u4e00\u500b\u7c21\u55ae\u7684\u51fd\u6578\u4f86\u5224\u65b7\u7d66\u5b9a\u7684\u5e74\u4efd\u662f\u5426\u70ba\u958f\u5e74\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528SQL Server\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>\nCREATE FUNCTION IsLeapYear(@Year INT)\nRETURNS BIT\nAS\nBEGIN\n    IF (@Year % 4 = 0 AND @Year % 100 != 0) OR (@Year % 400 = 0)\n        RETURN 1; -- \u662f\u958f\u5e74\n    ELSE\n        RETURN 0; -- \u4e0d\u662f\u958f\u5e74\nEND\n<\/code><\/pre>\n<p>\u9019\u500b\u51fd\u6578\u63a5\u53d7\u4e00\u500b\u6574\u6578\u4f5c\u70ba\u53c3\u6578\uff0c\u4e26\u8fd4\u56de\u4e00\u500b\u4f4d\u5143\uff08BIT\uff09\u503c\uff0c\u8868\u793a\u8a72\u5e74\u4efd\u662f\u5426\u70ba\u958f\u5e74\u3002\u4f7f\u7528\u6642\uff0c\u53ef\u4ee5\u9019\u6a23\u8abf\u7528\uff1a<\/p>\n<pre><code>\nSELECT dbo.IsLeapYear(2024) AS IsLeap; -- \u8fd4\u56de 1\nSELECT dbo.IsLeapYear(1900) AS IsLeap; -- \u8fd4\u56de 0\nSELECT dbo.IsLeapYear(2000) AS IsLeap; -- \u8fd4\u56de 1\n<\/code><\/pre>\n<h2 id=\"mysql%e4%b8%ad%e7%9a%84%e9%96%8f%e5%b9%b4%e5%88%a4%e6%96%b7-cBNcvkxIkJ\">MySQL\u4e2d\u7684\u958f\u5e74\u5224\u65b7<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u985e\u4f3c\u7684\u908f\u8f2f\u4f86\u5275\u5efa\u4e00\u500b\u51fd\u6578\u3002\u4ee5\u4e0b\u662fMySQL\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>\nDELIMITER \/\/\nCREATE FUNCTION IsLeapYear(year INT)\nRETURNS BOOLEAN\nBEGIN\n    RETURN (year % 4 = 0 AND year % 100 != 0) OR (year % 400 = 0);\nEND \/\/\nDELIMITER ;\n<\/code><\/pre>\n<p>\u9019\u500b\u51fd\u6578\u7684\u4f7f\u7528\u65b9\u6cd5\u8207SQL Server\u4e2d\u7684\u76f8\u4f3c\uff1a<\/p>\n<pre><code>\nSELECT IsLeapYear(2024) AS IsLeap; -- \u8fd4\u56de 1\nSELECT IsLeapYear(1900) AS IsLeap; -- \u8fd4\u56de 0\nSELECT IsLeapYear(2000) AS IsLeap; -- \u8fd4\u56de 1\n<\/code><\/pre>\n<h2 id=\"%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-cBNcvkxIkJ\">\u61c9\u7528\u5834\u666f<\/h2>\n<p>\u5224\u65b7\u958f\u5e74\u7684\u529f\u80fd\u5728\u8a31\u591a\u61c9\u7528\u4e2d\u90fd\u975e\u5e38\u91cd\u8981\uff0c\u7279\u5225\u662f\u5728\u6d89\u53ca\u5230\u65e5\u671f\u8a08\u7b97\u7684\u7cfb\u7d71\u4e2d\u3002\u4f8b\u5982\uff0c\u8a08\u7b97\u67d0\u500b\u65e5\u671f\u7bc4\u570d\u5167\u7684\u5929\u6578\u3001\u751f\u6210\u5831\u544a\u6216\u9032\u884c\u6578\u64da\u5206\u6790\u6642\uff0c\u6b63\u78ba\u8655\u7406\u958f\u5e74\u53ef\u4ee5\u907f\u514d\u51fa\u73fe\u932f\u8aa4\u7684\u7d50\u679c\u3002\u6b64\u5916\uff0c\u5728\u8ca1\u52d9\u7cfb\u7d71\u4e2d\uff0c\u6b63\u78ba\u7684\u65e5\u671f\u8a08\u7b97\u5c0d\u65bc\u5229\u606f\u8a08\u7b97\u548c\u5831\u8868\u751f\u6210\u4e5f\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-cBNcvkxIkJ\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u63a2\u8a0e\u4e86\u5982\u4f55\u5728SQL\u4e2d\u5224\u65b7\u958f\u5e74\uff0c\u4e26\u63d0\u4f9b\u4e86SQL Server\u548cMySQL\u7684\u51fd\u6578\u7bc4\u4f8b\u3002\u9019\u4e9b\u51fd\u6578\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5728\u8655\u7406\u65e5\u671f\u548c\u6642\u9593\u6642\uff0c\u6b63\u78ba\u5730\u8003\u616e\u958f\u5e74\u7684\u5f71\u97ff\u3002\u5c0d\u65bc\u9700\u8981\u9032\u884c\u65e5\u671f\u8a08\u7b97\u7684\u61c9\u7528\u4f86\u8aaa\uff0c\u9019\u662f\u4e00\u500b\u57fa\u672c\u800c\u91cd\u8981\u7684\u529f\u80fd\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u7a2e\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528SQL\u51fd\u6578\u5224\u65b7\u958f\u5e74\uff0c\u7c21\u55ae\u6709\u6548\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u5728\u6578\u64da\u5eab\u4e2d\u9032\u884c\u65e5\u671f\u8a08\u7b97\u548c\u8655\u7406\u3002<\/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-170191","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/170191","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=170191"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/170191\/revisions"}],"predecessor-version":[{"id":170192,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/170191\/revisions\/170192"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=170191"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=170191"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=170191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}