{"id":71135,"date":"2024-10-15T14:48:14","date_gmt":"2024-10-15T06:48:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/71135\/"},"modified":"2024-10-15T14:48:15","modified_gmt":"2024-10-15T06:48:15","slug":"mssql%e4%b8%ad%e5%a6%82%e4%bd%95%e7%b2%be%e6%ba%96%e6%af%94%e8%bc%83%e6%97%a5%e6%9c%9f%ef%bc%88mssql%e6%af%94%e8%bc%83%e6%97%a5%e6%9c%9f%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/71135\/","title":{"rendered":"MSSQL\u4e2d\u5982\u4f55\u7cbe\u6e96\u6bd4\u8f03\u65e5\u671f\uff08mssql\u6bd4\u8f03\u65e5\u671f\uff09"},"content":{"rendered":"<h1 id=\"mssql%e4%b8%ad%e5%a6%82%e4%bd%95%e7%b2%be%e6%ba%96%e6%af%94%e8%bc%83%e6%97%a5%e6%9c%9f%ef%bc%88mssql%e6%af%94%e8%bc%83%e6%97%a5%e6%9c%9f%ef%bc%89-nDNBKgVSYf\">MSSQL\u4e2d\u5982\u4f55\u7cbe\u6e96\u6bd4\u8f03\u65e5\u671f\uff08mssql\u6bd4\u8f03\u65e5\u671f\uff09<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u4e2d\uff0c\u65e5\u671f\u7684\u6bd4\u8f03\u662f\u4e00\u500b\u5e38\u898b\u4e14\u91cd\u8981\u7684\u64cd\u4f5c\u3002\u7279\u5225\u662f\u5728\u4f7f\u7528Microsoft SQL Server\uff08MSSQL\uff09\u6642\uff0c\u6b63\u78ba\u5730\u6bd4\u8f03\u65e5\u671f\u53ef\u4ee5\u5e6b\u52a9\u6211\u5011\u9032\u884c\u6578\u64da\u7be9\u9078\u3001\u5831\u544a\u751f\u6210\u53ca\u6578\u64da\u5206\u6790\u7b49\u591a\u7a2e\u4efb\u52d9\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5728MSSQL\u4e2d\u5982\u4f55\u7cbe\u6e96\u6bd4\u8f03\u65e5\u671f\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u7bc4\u4f8b\u548c\u6280\u5de7\u3002<\/p>\n<h2 id=\"%e6%97%a5%e6%9c%9f%e6%a0%bc%e5%bc%8f%e7%9a%84%e7%90%86%e8%a7%a3-nDNBKgVSYf\">\u65e5\u671f\u683c\u5f0f\u7684\u7406\u89e3<\/h2>\n<p>\u5728MSSQL\u4e2d\uff0c\u65e5\u671f\u548c\u6642\u9593\u7684\u6578\u64da\u985e\u578b\u4e3b\u8981\u6709\u4ee5\u4e0b\u5e7e\u7a2e\uff1a<\/p>\n<ul>\n<li><code>DATE<\/code>\uff1a\u53ea\u5305\u542b\u65e5\u671f\uff0c\u683c\u5f0f\u70baYYYY-MM-DD\u3002<\/li>\n<li><code>TIME<\/code>\uff1a\u53ea\u5305\u542b\u6642\u9593\uff0c\u683c\u5f0f\u70baHH:MM:SS\u3002<\/li>\n<li><code>DATETIME<\/code>\uff1a\u5305\u542b\u65e5\u671f\u548c\u6642\u9593\uff0c\u683c\u5f0f\u70baYYYY-MM-DD HH:MM:SS\u3002<\/li>\n<li><code>DATETIME2<\/code>\uff1a\u6bd4<code>DATETIME<\/code>\u66f4\u7cbe\u78ba\uff0c\u652f\u6301\u66f4\u5927\u7684\u65e5\u671f\u7bc4\u570d\u3002<\/li>\n<li><code>SMALLDATETIME<\/code>\uff1a\u65e5\u671f\u7bc4\u570d\u8f03\u5c0f\uff0c\u7cbe\u5ea6\u8f03\u4f4e\u3002<\/li>\n<\/ul>\n<p>\u5728\u9032\u884c\u65e5\u671f\u6bd4\u8f03\u6642\uff0c\u9996\u5148\u9700\u8981\u78ba\u4fdd\u6240\u4f7f\u7528\u7684\u65e5\u671f\u683c\u5f0f\u4e00\u81f4\uff0c\u9019\u6a23\u624d\u80fd\u907f\u514d\u56e0\u683c\u5f0f\u4e0d\u5339\u914d\u800c\u5c0e\u81f4\u7684\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e5%9f%ba%e6%9c%ac%e7%9a%84%e6%97%a5%e6%9c%9f%e6%af%94%e8%bc%83-nDNBKgVSYf\">\u57fa\u672c\u7684\u65e5\u671f\u6bd4\u8f03<\/h2>\n<p>\u5728MSSQL\u4e2d\uff0c\u65e5\u671f\u7684\u6bd4\u8f03\u53ef\u4ee5\u4f7f\u7528\u6a19\u6e96\u7684\u6bd4\u8f03\u904b\u7b97\u7b26\uff0c\u5982<code>=<\/code>\u3001<code>!=<\/code>\u3001<code>&gt;<\/code>\u3001<code>&lt;<\/code>\u3001<code>&gt;=<\/code>\u548c<code>&lt;=<\/code>\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM Orders\nWHERE OrderDate &gt; '2023-01-01';\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u57282023\u5e741\u67081\u65e5\u4e4b\u5f8c\u7684\u8a02\u55ae\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e6%97%a5%e6%9c%9f%e5%87%bd%e6%95%b8%e9%80%b2%e8%a1%8c%e6%af%94%e8%bc%83-nDNBKgVSYf\">\u4f7f\u7528\u65e5\u671f\u51fd\u6578\u9032\u884c\u6bd4\u8f03<\/h2>\n<p>MSSQL\u63d0\u4f9b\u4e86\u4e00\u4e9b\u5167\u5efa\u7684\u65e5\u671f\u51fd\u6578\uff0c\u53ef\u4ee5\u5e6b\u52a9\u6211\u5011\u66f4\u9748\u6d3b\u5730\u9032\u884c\u65e5\u671f\u6bd4\u8f03\u3002\u4f8b\u5982\uff0c<code>GETDATE()<\/code>\u51fd\u6578\u53ef\u4ee5\u7372\u53d6\u7576\u524d\u7684\u65e5\u671f\u548c\u6642\u9593\uff1a<\/p>\n<pre><code>SELECT * FROM Orders\nWHERE OrderDate &gt; GETDATE();\n<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u6240\u6709\u5728\u7576\u524d\u65e5\u671f\u4e4b\u5f8c\u7684\u8a02\u55ae\u3002<\/p>\n<h3 id=\"%e6%97%a5%e6%9c%9f%e7%af%84%e5%9c%8d%e7%9a%84%e6%af%94%e8%bc%83-nDNBKgVSYf\">\u65e5\u671f\u7bc4\u570d\u7684\u6bd4\u8f03<\/h3>\n<p>\u6709\u6642\u5019\uff0c\u6211\u5011\u9700\u8981\u6bd4\u8f03\u4e00\u500b\u65e5\u671f\u7bc4\u570d\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4f7f\u7528<code>BETWEEN<\/code>\u904b\u7b97\u7b26\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>SELECT * FROM Orders\nWHERE OrderDate BETWEEN '2023-01-01' AND '2023-12-31';\n<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de2023\u5e74\u5167\u7684\u6240\u6709\u8a02\u55ae\u3002<\/p>\n<h2 id=\"%e8%99%95%e7%90%86%e6%99%82%e9%96%93%e6%88%b3%e7%9a%84%e6%af%94%e8%bc%83-nDNBKgVSYf\">\u8655\u7406\u6642\u9593\u6233\u7684\u6bd4\u8f03<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6211\u5011\u53ef\u80fd\u9700\u8981\u6bd4\u8f03\u5305\u542b\u6642\u9593\u7684\u65e5\u671f\u3002\u9019\u6642\u5019\uff0c\u4f7f\u7528<code>DATETIME<\/code>\u985e\u578b\u7684\u5b57\u6bb5\u9032\u884c\u6bd4\u8f03\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM Events\nWHERE EventStart &gt; '2023-10-01 10:00:00';\n<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u6240\u6709\u57282023\u5e7410\u67081\u65e510\u9ede\u4e4b\u5f8c\u958b\u59cb\u7684\u4e8b\u4ef6\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-nDNBKgVSYf\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u9032\u884c\u65e5\u671f\u6bd4\u8f03\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u7279\u5225\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u65e5\u671f\u683c\u5f0f\u4e00\u81f4\uff0c\u907f\u514d\u56e0\u683c\u5f0f\u4e0d\u5339\u914d\u800c\u5c0e\u81f4\u7684\u932f\u8aa4\u3002<\/li>\n<li>\u5728\u6bd4\u8f03\u6642\uff0c\u8003\u616e\u6642\u5340\u7684\u5f71\u97ff\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u4f86\u81ea\u4e0d\u540c\u5730\u5340\u7684\u6578\u64da\u6642\u3002<\/li>\n<li>\u4f7f\u7528\u9069\u7576\u7684\u6578\u64da\u985e\u578b\u4f86\u5b58\u5132\u65e5\u671f\u548c\u6642\u9593\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-nDNBKgVSYf\">\u7e3d\u7d50<\/h2>\n<p>\u5728MSSQL\u4e2d\uff0c\u7cbe\u6e96\u6bd4\u8f03\u65e5\u671f\u662f\u6578\u64da\u67e5\u8a62\u548c\u5206\u6790\u7684\u91cd\u8981\u7d44\u6210\u90e8\u5206\u3002\u901a\u904e\u7406\u89e3\u65e5\u671f\u683c\u5f0f\u3001\u4f7f\u7528\u57fa\u672c\u7684\u6bd4\u8f03\u904b\u7b97\u7b26\u548c\u5167\u5efa\u51fd\u6578\uff0c\u6211\u5011\u53ef\u4ee5\u6709\u6548\u5730\u9032\u884c\u65e5\u671f\u7be9\u9078\u548c\u6bd4\u8f03\u3002\u7121\u8ad6\u662f\u8655\u7406\u8a02\u55ae\u3001\u4e8b\u4ef6\u9084\u662f\u5176\u4ed6\u985e\u578b\u7684\u6578\u64da\uff0c\u638c\u63e1\u9019\u4e9b\u6280\u5de7\u90fd\u80fd\u5e6b\u52a9\u6211\u5011\u66f4\u597d\u5730\u7ba1\u7406\u548c\u5206\u6790\u6578\u64da\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\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u9700\u6c42\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u7528\u6236\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728MSSQL\u4e2d\u7cbe\u6e96\u6bd4\u8f03\u65e5\u671f\uff0c\u638c\u63e1\u65e5\u671f\u683c\u5f0f\u3001\u51fd\u6578\u53ca\u67e5\u8a62\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\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-71135","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/71135","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=71135"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/71135\/revisions"}],"predecessor-version":[{"id":71136,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/71135\/revisions\/71136"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=71135"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=71135"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=71135"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}