{"id":138999,"date":"2024-10-31T17:23:46","date_gmt":"2024-10-31T09:23:46","guid":{"rendered":"https:\/\/server.hk\/cnblog\/138999\/"},"modified":"2024-10-31T17:23:47","modified_gmt":"2024-10-31T09:23:47","slug":"sql-server%e6%97%a5%e6%9c%9f%e6%a0%bc%e5%bc%8f%e5%8c%96%e7%9a%84%e6%ad%a3%e7%a2%ba%e6%93%8d%e4%bd%9c%e6%ad%a5%e9%a9%9f%e8%88%87%e5%85%b6%e6%87%89%e7%94%a8%e4%bb%a3%e7%a2%bc","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/138999\/","title":{"rendered":"Sql Server\u65e5\u671f\u683c\u5f0f\u5316\u7684\u6b63\u78ba\u64cd\u4f5c\u6b65\u9a5f\u8207\u5176\u61c9\u7528\u4ee3\u78bc"},"content":{"rendered":"<h1 id=\"sql-server%e6%97%a5%e6%9c%9f%e6%a0%bc%e5%bc%8f%e5%8c%96%e7%9a%84%e6%ad%a3%e7%a2%ba%e6%93%8d%e4%bd%9c%e6%ad%a5%e9%a9%9f%e8%88%87%e5%85%b6%e6%87%89%e7%94%a8%e4%bb%a3%e7%a2%bc-iOKDzHFpgb\">SQL Server\u65e5\u671f\u683c\u5f0f\u5316\u7684\u6b63\u78ba\u64cd\u4f5c\u6b65\u9a5f\u8207\u5176\u61c9\u7528\u4ee3\u78bc<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u65e5\u671f\u548c\u6642\u9593\u7684\u683c\u5f0f\u5316\u662f\u4e00\u500b\u91cd\u8981\u7684\u8ab2\u984c\u3002SQL Server\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u8655\u7406\u548c\u683c\u5f0f\u5316\u65e5\u671f\uff0c\u9019\u5c0d\u65bc\u5831\u544a\u751f\u6210\u3001\u6578\u64da\u5206\u6790\u4ee5\u53ca\u7528\u6236\u754c\u9762\u7684\u5c55\u793a\u90fd\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u4ecb\u7d39SQL Server\u4e2d\u65e5\u671f\u683c\u5f0f\u5316\u7684\u6b63\u78ba\u64cd\u4f5c\u6b65\u9a5f\u53ca\u5176\u61c9\u7528\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e4%b8%80%e3%80%81sql-server%e4%b8%ad%e7%9a%84%e6%97%a5%e6%9c%9f%e9%a1%9e%e5%9e%8b-iOKDzHFpgb\">\u4e00\u3001SQL Server\u4e2d\u7684\u65e5\u671f\u985e\u578b<\/h2>\n<p>\u5728SQL Server\u4e2d\uff0c\u65e5\u671f\u548c\u6642\u9593\u7684\u6578\u64da\u985e\u578b\u4e3b\u8981\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>DATE<\/code>\uff1a\u53ea\u5b58\u5132\u65e5\u671f\uff0c\u7bc4\u570d\u5f9e &#8216;0001-01-01&#8217; \u5230 &#8216;9999-12-31&#8217;\u3002<\/li>\n<li><code>TIME<\/code>\uff1a\u53ea\u5b58\u5132\u6642\u9593\uff0c\u7bc4\u570d\u5f9e &#8217;00:00:00.0000000&#8242; \u5230 &#8217;23:59:59.9999999&#8217;\u3002<\/li>\n<li><code>DATETIME<\/code>\uff1a\u540c\u6642\u5b58\u5132\u65e5\u671f\u548c\u6642\u9593\uff0c\u7bc4\u570d\u5f9e &#8216;1753-01-01&#8217; \u5230 &#8216;9999-12-31&#8217;\u3002<\/li>\n<li><code>DATETIME2<\/code>\uff1a\u64f4\u5c55\u7684\u65e5\u671f\u6642\u9593\u985e\u578b\uff0c\u7bc4\u570d\u66f4\u5ee3\uff0c\u7cbe\u5ea6\u66f4\u9ad8\u3002<\/li>\n<li><code>SMALLDATETIME<\/code>\uff1a\u5b58\u5132\u7684\u65e5\u671f\u7bc4\u570d\u8f03\u5c0f\uff0c\u7cbe\u5ea6\u8f03\u4f4e\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%ba%8c%e3%80%81%e6%97%a5%e6%9c%9f%e6%a0%bc%e5%bc%8f%e5%8c%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e5%87%bd%e6%95%b8-iOKDzHFpgb\">\u4e8c\u3001\u65e5\u671f\u683c\u5f0f\u5316\u7684\u57fa\u672c\u51fd\u6578<\/h2>\n<p>\u5728SQL Server\u4e2d\uff0c\u5e38\u7528\u7684\u65e5\u671f\u683c\u5f0f\u5316\u51fd\u6578\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>FORMAT()<\/code>\uff1a\u7528\u65bc\u683c\u5f0f\u5316\u65e5\u671f\u548c\u6642\u9593\uff0c\u652f\u6301\u591a\u7a2e\u683c\u5f0f\u3002<\/li>\n<li><code>CONVERT()<\/code>\uff1a\u5c07\u4e00\u7a2e\u6578\u64da\u985e\u578b\u8f49\u63db\u70ba\u53e6\u4e00\u7a2e\uff0c\u4e26\u53ef\u6307\u5b9a\u683c\u5f0f\u3002<\/li>\n<li><code>CAST()<\/code>\uff1a\u5c07\u6578\u64da\u985e\u578b\u8f49\u63db\u70ba\u53e6\u4e00\u7a2e\u6578\u64da\u985e\u578b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%b8%89%e3%80%81%e4%bd%bf%e7%94%a8format%e5%87%bd%e6%95%b8%e9%80%b2%e8%a1%8c%e6%97%a5%e6%9c%9f%e6%a0%bc%e5%bc%8f%e5%8c%96-iOKDzHFpgb\">\u4e09\u3001\u4f7f\u7528FORMAT()\u51fd\u6578\u9032\u884c\u65e5\u671f\u683c\u5f0f\u5316<\/h2>\n<p><code>FORMAT()<\/code>\u51fd\u6578\u662fSQL Server 2012\u53ca\u4ee5\u5f8c\u7248\u672c\u4e2d\u5f15\u5165\u7684\uff0c\u4f7f\u7528\u8d77\u4f86\u975e\u5e38\u65b9\u4fbf\u3002\u5176\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>FORMAT(value, format_string, culture)<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>value<\/code>\u662f\u8981\u683c\u5f0f\u5316\u7684\u65e5\u671f\uff0c<code>format_string<\/code>\u662f\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff0c<code>culture<\/code>\u662f\u53ef\u9078\u7684\u6587\u5316\u4fe1\u606f\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a-iOKDzHFpgb\">\u793a\u4f8b\uff1a<\/h3>\n<pre><code>SELECT FORMAT(GETDATE(), 'yyyy-MM-dd') AS FormattedDate;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u7576\u524d\u65e5\u671f\u683c\u5f0f\u5316\u70ba\u201c\u5e74-\u6708-\u65e5\u201d\u7684\u5f62\u5f0f\u3002<\/p>\n<h2 id=\"%e5%9b%9b%e3%80%81%e4%bd%bf%e7%94%a8convert%e5%87%bd%e6%95%b8%e9%80%b2%e8%a1%8c%e6%97%a5%e6%9c%9f%e6%a0%bc%e5%bc%8f%e5%8c%96-iOKDzHFpgb\">\u56db\u3001\u4f7f\u7528CONVERT()\u51fd\u6578\u9032\u884c\u65e5\u671f\u683c\u5f0f\u5316<\/h2>\n<p><code>CONVERT()<\/code>\u51fd\u6578\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>CONVERT(data_type, expression, style)<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>style<\/code>\u53c3\u6578\u7528\u65bc\u6307\u5b9a\u8f38\u51fa\u683c\u5f0f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u6a23\u5f0f\u4ee3\u78bc\uff1a<\/p>\n<ul>\n<li><code>1<\/code>\uff1aMM\/DD\/YY<\/li>\n<li><code>101<\/code>\uff1aMM\/DD\/YYYY<\/li>\n<li><code>3<\/code>\uff1aDD\/MM\/YY<\/li>\n<li><code>103<\/code>\uff1aDD\/MM\/YYYY<\/li>\n<\/ul>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a-iOKDzHFpgb\">\u793a\u4f8b\uff1a<\/h3>\n<pre><code>SELECT CONVERT(VARCHAR(10), GETDATE(), 101) AS FormattedDate;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u7576\u524d\u65e5\u671f\u683c\u5f0f\u5316\u70ba\u201cMM\/DD\/YYYY\u201d\u7684\u5f62\u5f0f\u3002<\/p>\n<h2 id=\"%e4%ba%94%e3%80%81%e4%bd%bf%e7%94%a8cast%e5%87%bd%e6%95%b8%e9%80%b2%e8%a1%8c%e6%97%a5%e6%9c%9f%e6%a0%bc%e5%bc%8f%e5%8c%96-iOKDzHFpgb\">\u4e94\u3001\u4f7f\u7528CAST()\u51fd\u6578\u9032\u884c\u65e5\u671f\u683c\u5f0f\u5316<\/h2>\n<p><code>CAST()<\/code>\u51fd\u6578\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>CAST(expression AS data_type)<\/code><\/pre>\n<p>\u96d6\u7136<code>CAST()<\/code>\u51fd\u6578\u4e3b\u8981\u7528\u65bc\u6578\u64da\u985e\u578b\u8f49\u63db\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u4e5f\u53ef\u4ee5\u7528\u4f86\u683c\u5f0f\u5316\u65e5\u671f\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a-iOKDzHFpgb\">\u793a\u4f8b\uff1a<\/h3>\n<pre><code>SELECT CAST(GETDATE() AS DATE) AS FormattedDate;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u7576\u524d\u65e5\u671f\u8f49\u63db\u70ba<code>DATE<\/code>\u985e\u578b\uff0c\u50c5\u986f\u793a\u65e5\u671f\u90e8\u5206\u3002<\/p>\n<h2 id=\"%e5%85%ad%e3%80%81%e7%b5%90%e8%ab%96-iOKDzHFpgb\">\u516d\u3001\u7d50\u8ad6<\/h2>\n<p>\u5728SQL Server\u4e2d\uff0c\u6b63\u78ba\u7684\u65e5\u671f\u683c\u5f0f\u5316\u5c0d\u65bc\u6578\u64da\u7684\u53ef\u8b80\u6027\u548c\u5206\u6790\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u4f7f\u7528<code>FORMAT()<\/code>\u3001<code>CONVERT()<\/code>\u548c<code>CAST()<\/code>\u7b49\u51fd\u6578\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9748\u6d3b\u5730\u8655\u7406\u548c\u5c55\u793a\u65e5\u671f\u6578\u64da\u3002\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u683c\u5f0f\u5316\u65b9\u6cd5\uff0c\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6548\u7387\u548c\u6e96\u78ba\u6027\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc<code>VPS<\/code>\u3001<code>\u9999\u6e2fVPS<\/code>\u53ca\u5176\u4ed6<code>\u670d\u52a1\u5668<\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3SQL Server\u65e5\u671f\u683c\u5f0f\u5316\u7684\u6b63\u78ba\u64cd\u4f5c\u6b65\u9a5f\u53ca\u61c9\u7528\u4ee3\u78bc\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u78ba\u4fdd\u65e5\u671f\u986f\u793a\u6e96\u78ba\u7121\u8aa4\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-138999","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/138999","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=138999"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/138999\/revisions"}],"predecessor-version":[{"id":139000,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/138999\/revisions\/139000"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=138999"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=138999"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=138999"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}