{"id":139005,"date":"2024-10-31T17:26:33","date_gmt":"2024-10-31T09:26:33","guid":{"rendered":"https:\/\/server.hk\/cnblog\/139005\/"},"modified":"2024-10-31T17:26:34","modified_gmt":"2024-10-31T09:26:34","slug":"sql-server%e6%97%a5%e6%9c%9f%e5%87%bd%e6%95%b8%e4%b9%8b%e6%ad%a3%e7%a2%ba%e7%8d%b2%e5%be%97%e4%b8%80%e5%80%8b%e6%9c%88%e4%b8%ad%e7%9a%84%e5%a4%a9%e6%95%b8%e5%b0%8f%e7%ab%85%e9%96%80","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/139005\/","title":{"rendered":"SQL Server\u65e5\u671f\u51fd\u6578\u4e4b\u6b63\u78ba\u7372\u5f97\u4e00\u500b\u6708\u4e2d\u7684\u5929\u6578\u5c0f\u7ac5\u9580"},"content":{"rendered":"<h1 id=\"sql-server%e6%97%a5%e6%9c%9f%e5%87%bd%e6%95%b8%e4%b9%8b%e6%ad%a3%e7%a2%ba%e7%8d%b2%e5%be%97%e4%b8%80%e5%80%8b%e6%9c%88%e4%b8%ad%e7%9a%84%e5%a4%a9%e6%95%b8%e5%b0%8f%e7%ab%85%e9%96%80-KBZVpoaFdg\">SQL Server\u65e5\u671f\u51fd\u6578\u4e4b\u6b63\u78ba\u7372\u5f97\u4e00\u500b\u6708\u4e2d\u7684\u5929\u6578\u5c0f\u7ac5\u9580<\/h1>\n<p>\u5728\u4f7f\u7528SQL Server\u9032\u884c\u6578\u64da\u5eab\u7ba1\u7406\u6642\uff0c\u65e5\u671f\u548c\u6642\u9593\u7684\u8655\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u4e00\u90e8\u5206\u3002\u7279\u5225\u662f\u5728\u9700\u8981\u8a08\u7b97\u4e00\u500b\u6708\u4e2d\u7684\u5929\u6578\u6642\uff0c\u6b63\u78ba\u7684\u65e5\u671f\u51fd\u6578\u4f7f\u7528\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u9ad8\u6548\u5730\u5b8c\u6210\u4efb\u52d9\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728SQL Server\u4e2d\u6b63\u78ba\u7372\u5f97\u4e00\u500b\u6708\u4e2d\u7684\u5929\u6578\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u7bc4\u4f8b\u548c\u6280\u5de7\u3002<\/p>\n<h2 id=\"sql-server%e4%b8%ad%e7%9a%84%e6%97%a5%e6%9c%9f%e5%87%bd%e6%95%b8%e6%a6%82%e8%bf%b0-KBZVpoaFdg\">SQL Server\u4e2d\u7684\u65e5\u671f\u51fd\u6578\u6982\u8ff0<\/h2>\n<p>SQL Server\u63d0\u4f9b\u4e86\u591a\u7a2e\u65e5\u671f\u51fd\u6578\uff0c\u9019\u4e9b\u51fd\u6578\u53ef\u4ee5\u7528\u4f86\u8655\u7406\u548c\u8a08\u7b97\u65e5\u671f\u3002\u5e38\u7528\u7684\u65e5\u671f\u51fd\u6578\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>GETDATE()<\/code>\uff1a\u8fd4\u56de\u7576\u524d\u7684\u65e5\u671f\u548c\u6642\u9593\u3002<\/li>\n<li><code>DATEADD()<\/code>\uff1a\u5728\u6307\u5b9a\u7684\u65e5\u671f\u4e0a\u6dfb\u52a0\u4e00\u6bb5\u6642\u9593\u3002<\/li>\n<li><code>DATEDIFF()<\/code>\uff1a\u8a08\u7b97\u5169\u500b\u65e5\u671f\u4e4b\u9593\u7684\u5dee\u7570\u3002<\/li>\n<li><code>EOMONTH()<\/code>\uff1a\u8fd4\u56de\u6307\u5b9a\u65e5\u671f\u6240\u5728\u6708\u4efd\u7684\u6700\u5f8c\u4e00\u5929\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%8d%b2%e5%be%97%e4%b8%80%e5%80%8b%e6%9c%88%e4%b8%ad%e7%9a%84%e5%a4%a9%e6%95%b8-KBZVpoaFdg\">\u7372\u5f97\u4e00\u500b\u6708\u4e2d\u7684\u5929\u6578<\/h2>\n<p>\u8981\u7372\u5f97\u4e00\u500b\u6708\u4e2d\u7684\u5929\u6578\uff0c\u6700\u7c21\u55ae\u7684\u65b9\u6cd5\u662f\u4f7f\u7528<code>EOMONTH()<\/code>\u51fd\u6578\u3002\u9019\u500b\u51fd\u6578\u53ef\u4ee5\u5e6b\u52a9\u6211\u5011\u627e\u5230\u67d0\u500b\u65e5\u671f\u6240\u5728\u6708\u4efd\u7684\u6700\u5f8c\u4e00\u5929\uff0c\u7136\u5f8c\u901a\u904e\u8a08\u7b97\u9019\u500b\u65e5\u671f\u548c\u7576\u6708\u7b2c\u4e00\u5929\u7684\u5dee\u7570\u4f86\u7372\u5f97\u5929\u6578\u3002<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b%ef%bc%9a%e7%8d%b2%e5%8f%96%e7%95%b6%e5%89%8d%e6%9c%88%e4%bb%bd%e7%9a%84%e5%a4%a9%e6%95%b8-KBZVpoaFdg\">\u7bc4\u4f8b\uff1a\u7372\u53d6\u7576\u524d\u6708\u4efd\u7684\u5929\u6578<\/h3>\n<pre><code>DECLARE @CurrentDate DATE = GETDATE();\nDECLARE @FirstDayOfMonth DATE = DATEADD(MONTH, DATEDIFF(MONTH, 0, @CurrentDate), 0);\nDECLARE @LastDayOfMonth DATE = EOMONTH(@CurrentDate);\nDECLARE @DaysInMonth INT = DATEDIFF(DAY, @FirstDayOfMonth, @LastDayOfMonth) + 1;\n\nSELECT @DaysInMonth AS DaysInCurrentMonth;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u7372\u53d6\u7576\u524d\u65e5\u671f\uff0c\u7136\u5f8c\u8a08\u7b97\u7576\u6708\u7684\u7b2c\u4e00\u5929\u548c\u6700\u5f8c\u4e00\u5929\u3002\u63a5\u8457\uff0c\u6211\u5011\u4f7f\u7528<code>DATEDIFF()<\/code>\u51fd\u6578\u8a08\u7b97\u9019\u5169\u500b\u65e5\u671f\u4e4b\u9593\u7684\u5929\u6578\uff0c\u4e26\u52a0\u4e0a1\u4ee5\u7372\u5f97\u7576\u6708\u7684\u7e3d\u5929\u6578\u3002<\/p>\n<h3 id=\"%e7%8d%b2%e5%8f%96%e7%89%b9%e5%ae%9a%e6%9c%88%e4%bb%bd%e7%9a%84%e5%a4%a9%e6%95%b8-KBZVpoaFdg\">\u7372\u53d6\u7279\u5b9a\u6708\u4efd\u7684\u5929\u6578<\/h3>\n<p>\u5982\u679c\u6211\u5011\u60f3\u8981\u7372\u53d6\u7279\u5b9a\u6708\u4efd\u7684\u5929\u6578\uff0c\u53ef\u4ee5\u5c07\u65e5\u671f\u53c3\u6578\u66ff\u63db\u70ba\u6240\u9700\u7684\u65e5\u671f\u3002\u4f8b\u5982\uff0c\u82e5\u8981\u7372\u53d62023\u5e742\u6708\u7684\u5929\u6578\uff0c\u53ef\u4ee5\u9019\u6a23\u505a\uff1a<\/p>\n<pre><code>DECLARE @SpecificDate DATE = '2023-02-01';\nDECLARE @FirstDayOfMonth DATE = DATEADD(MONTH, DATEDIFF(MONTH, 0, @SpecificDate), 0);\nDECLARE @LastDayOfMonth DATE = EOMONTH(@SpecificDate);\nDECLARE @DaysInMonth INT = DATEDIFF(DAY, @FirstDayOfMonth, @LastDayOfMonth) + 1;\n\nSELECT @DaysInMonth AS DaysInSpecificMonth;\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u8fd4\u56de2023\u5e742\u6708\u7684\u5929\u6578\uff0c\u8003\u616e\u5230\u958f\u5e74\u7684\u60c5\u6cc1\uff0c\u7d50\u679c\u5c07\u662f29\u5929\u3002<\/p>\n<h2 id=\"%e5%b0%8f%e7%b5%90-KBZVpoaFdg\">\u5c0f\u7d50<\/h2>\n<p>\u5728SQL Server\u4e2d\uff0c\u4f7f\u7528\u65e5\u671f\u51fd\u6578\u4f86\u7372\u53d6\u4e00\u500b\u6708\u4e2d\u7684\u5929\u6578\u662f\u4e00\u500b\u76f8\u5c0d\u7c21\u55ae\u7684\u904e\u7a0b\u3002\u901a\u904e<code>EOMONTH()<\/code>\u548c<code>DATEDIFF()<\/code>\u51fd\u6578\u7684\u7d50\u5408\u4f7f\u7528\uff0c\u6211\u5011\u53ef\u4ee5\u8f15\u9b06\u5730\u8a08\u7b97\u51fa\u4efb\u4f55\u6708\u4efd\u7684\u5929\u6578\u3002\u9019\u4e9b\u6280\u5de7\u4e0d\u50c5\u80fd\u63d0\u9ad8\u958b\u767c\u6548\u7387\uff0c\u9084\u80fd\u5e6b\u52a9\u6211\u5011\u66f4\u597d\u5730\u7ba1\u7406\u548c\u5206\u6790\u6578\u64da\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u6216\u5176\u4ed6\u6280\u8853\u554f\u984c\u6709\u9032\u4e00\u6b65\u7684\u9700\u6c42\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4e86\u89e3\u66f4\u591a\u8cc7\u8a0a\u3002\u6211\u5011\u63d0\u4f9b\u5404\u7a2e<em><a href=\"https:\/\/server.hk\">VPS<\/a><\/em>\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u60a8\u5728\u9999\u6e2f\u7684\u696d\u52d9\u904b\u884c\u66f4\u52a0\u9806\u5229\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22SQL Server\u65e5\u671f\u51fd\u6578\uff0c\u5b78\u7fd2\u5982\u4f55\u6b63\u78ba\u7372\u5f97\u4e00\u500b\u6708\u4e2d\u7684\u5929\u6578\uff0c\u63d0\u5347\u4f60\u7684\u6578\u64da\u8655\u7406\u6280\u5de7\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-139005","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/139005","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=139005"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/139005\/revisions"}],"predecessor-version":[{"id":139006,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/139005\/revisions\/139006"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=139005"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=139005"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=139005"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}