{"id":66303,"date":"2024-10-14T16:19:18","date_gmt":"2024-10-14T08:19:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/66303\/"},"modified":"2024-10-14T16:19:18","modified_gmt":"2024-10-14T08:19:18","slug":"mssql%e4%b8%ad%e6%af%94%e8%bc%83%e6%97%a5%e6%9c%9f%e5%a4%a7%e5%b0%8f%e7%9a%84%e6%96%b9%e6%b3%95%e7%a0%94%e7%a9%b6%ef%bc%88mssql%e6%97%a5%e6%9c%9f%e7%9b%b8%e7%ad%89%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/66303\/","title":{"rendered":"MSSQL\u4e2d\u6bd4\u8f03\u65e5\u671f\u5927\u5c0f\u7684\u65b9\u6cd5\u7814\u7a76\uff08mssql\u65e5\u671f\u76f8\u7b49\uff09"},"content":{"rendered":"<h1 id=\"mssql%e4%b8%ad%e6%af%94%e8%bc%83%e6%97%a5%e6%9c%9f%e5%a4%a7%e5%b0%8f%e7%9a%84%e6%96%b9%e6%b3%95%e7%a0%94%e7%a9%b6%ef%bc%88mssql%e6%97%a5%e6%9c%9f%e7%9b%b8%e7%ad%89%ef%bc%89-DuGZsafsdz\">MSSQL\u4e2d\u6bd4\u8f03\u65e5\u671f\u5927\u5c0f\u7684\u65b9\u6cd5\u7814\u7a76\uff08mssql\u65e5\u671f\u76f8\u7b49\uff09<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u65e5\u671f\u548c\u6642\u9593\u7684\u8655\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u5c24\u5176\u662f\u5728\u9032\u884c\u6578\u64da\u67e5\u8a62\u548c\u5206\u6790\u6642\u3002Microsoft SQL Server\uff08MSSQL\uff09\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u6bd4\u8f03\u65e5\u671f\u7684\u5927\u5c0f\uff0c\u9019\u5c0d\u65bc\u958b\u767c\u8005\u548c\u6578\u64da\u5206\u6790\u5e2b\u4f86\u8aaa\u662f\u5fc5\u9808\u638c\u63e1\u7684\u6280\u80fd\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5728MSSQL\u4e2d\u6bd4\u8f03\u65e5\u671f\u5927\u5c0f\u7684\u65b9\u6cd5\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u7bc4\u4f8b\u3002<\/p>\n<h2 id=\"%e6%97%a5%e6%9c%9f%e9%a1%9e%e5%9e%8b%e7%9a%84%e4%bb%8b%e7%b4%b9-DuGZsafsdz\">\u65e5\u671f\u985e\u578b\u7684\u4ecb\u7d39<\/h2>\n<p>MSSQL\u4e2d\u6709\u5e7e\u7a2e\u4e0d\u540c\u7684\u65e5\u671f\u985e\u578b\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>DATE<\/code>\uff1a\u53ea\u5305\u542b\u65e5\u671f\uff0c\u7bc4\u570d\u5f9e 0001-01-01 \u5230 9999-12-31\u3002<\/li>\n<li><code>TIME<\/code>\uff1a\u53ea\u5305\u542b\u6642\u9593\uff0c\u7bc4\u570d\u5f9e 00:00:00.0000000 \u5230 23:59:59.9999999\u3002<\/li>\n<li><code>DATETIME<\/code>\uff1a\u5305\u542b\u65e5\u671f\u548c\u6642\u9593\uff0c\u7bc4\u570d\u5f9e 1753-01-01 \u5230 9999-12-31\u3002<\/li>\n<li><code>DATETIME2<\/code>\uff1a\u6bd4 <code>DATETIME<\/code> \u66f4\u7cbe\u78ba\uff0c\u7bc4\u570d\u5f9e 0001-01-01 \u5230 9999-12-31\u3002<\/li>\n<li><code>SMALLDATETIME<\/code>\uff1a\u7bc4\u570d\u5f9e 1900-01-01 \u5230 2079-06-06\uff0c\u7cbe\u5ea6\u70ba 1 \u5206\u9418\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%af%94%e8%bc%83%e6%97%a5%e6%9c%9f%e5%a4%a7%e5%b0%8f%e7%9a%84%e6%96%b9%e6%b3%95-DuGZsafsdz\">\u6bd4\u8f03\u65e5\u671f\u5927\u5c0f\u7684\u65b9\u6cd5<\/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>&gt;<\/code>\u3001<code>&lt;<\/code>\u3001<code>&gt;=<\/code> \u548c <code>&lt;=<\/code>\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u6bd4\u8f03\u7bc4\u4f8b\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e6%af%94%e8%bc%83%e9%81%8b%e7%ae%97%e7%ac%a6-DuGZsafsdz\">1. \u4f7f\u7528\u6bd4\u8f03\u904b\u7b97\u7b26<\/h3>\n<pre><code>SELECT *\nFROM 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<h3 id=\"2-%e4%bd%bf%e7%94%a8datediff%e5%87%bd%e6%95%b8-DuGZsafsdz\">2. \u4f7f\u7528DATEDIFF\u51fd\u6578<\/h3>\n<p>\u5982\u679c\u9700\u8981\u6bd4\u8f03\u5169\u500b\u65e5\u671f\u4e4b\u9593\u7684\u5dee\u7570\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>DATEDIFF<\/code> \u51fd\u6578\u3002\u9019\u500b\u51fd\u6578\u53ef\u4ee5\u8a08\u7b97\u5169\u500b\u65e5\u671f\u4e4b\u9593\u7684\u5929\u6578\u3001\u6708\u6578\u6216\u5e74\u6578\u3002<\/p>\n<pre><code>SELECT *\nFROM Orders\nWHERE DATEDIFF(DAY, OrderDate, GETDATE()) &gt; 30;\n<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u572830\u5929\u4e4b\u524d\u7684\u8a02\u55ae\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8between%e9%81%8b%e7%ae%97%e7%ac%a6-DuGZsafsdz\">3. \u4f7f\u7528BETWEEN\u904b\u7b97\u7b26<\/h3>\n<p>\u5982\u679c\u9700\u8981\u67e5\u8a62\u67d0\u500b\u65e5\u671f\u7bc4\u570d\u5167\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>BETWEEN<\/code> \u904b\u7b97\u7b26\u3002<\/p>\n<pre><code>SELECT *\nFROM Orders\nWHERE OrderDate BETWEEN '2023-01-01' AND '2023-12-31';\n<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de2023\u5e74\u5167\u7684\u6240\u6709\u8a02\u55ae\u3002<\/p>\n<h2 id=\"%e6%97%a5%e6%9c%9f%e7%9b%b8%e7%ad%89%e7%9a%84%e6%af%94%e8%bc%83-DuGZsafsdz\">\u65e5\u671f\u76f8\u7b49\u7684\u6bd4\u8f03<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6211\u5011\u9700\u8981\u6aa2\u67e5\u5169\u500b\u65e5\u671f\u662f\u5426\u76f8\u7b49\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4f7f\u7528 <code>=<\/code> \u904b\u7b97\u7b26\u4f86\u5be6\u73fe\u3002<\/p>\n<pre><code>SELECT *\nFROM Orders\nWHERE OrderDate = '2023-01-01';\n<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u57282023\u5e741\u67081\u65e5\u4e0b\u7684\u8a02\u55ae\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-DuGZsafsdz\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u9032\u884c\u65e5\u671f\u6bd4\u8f03\u6642\uff0c\u958b\u767c\u8005\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u65e5\u671f\u683c\u5f0f\u6b63\u78ba\uff0c\u907f\u514d\u56e0\u683c\u5f0f\u4e0d\u4e00\u81f4\u800c\u5c0e\u81f4\u7684\u932f\u8aa4\u3002<\/li>\n<li>\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\u65e5\u671f\u985e\u578b\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u548c\u6e96\u78ba\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-DuGZsafsdz\">\u7e3d\u7d50<\/h2>\n<p>\u5728MSSQL\u4e2d\uff0c\u65e5\u671f\u7684\u6bd4\u8f03\u662f\u6578\u64da\u67e5\u8a62\u548c\u5206\u6790\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u901a\u904e\u4f7f\u7528\u6bd4\u8f03\u904b\u7b97\u7b26\u3001\u51fd\u6578\u548c\u9069\u7576\u7684\u67e5\u8a62\u8a9e\u53e5\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u8655\u7406\u548c\u5206\u6790\u65e5\u671f\u6578\u64da\u3002\u4e86\u89e3\u5982\u4f55\u6b63\u78ba\u6bd4\u8f03\u65e5\u671f\u5927\u5c0f\u548c\u76f8\u7b49\u6027\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6548\u7387\u548c\u6e96\u78ba\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\u6709\u8208\u8da3\uff0c\u6216\u60f3\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a> \u7684\u8cc7\u8a0a\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8a73\u7d30\u8cc7\u6599\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22MSSQL\u4e2d\u6bd4\u8f03\u65e5\u671f\u5927\u5c0f\u7684\u65b9\u6cd5\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u5224\u65b7\u65e5\u671f\u76f8\u7b49\u53ca\u5176\u61c9\u7528\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-66303","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66303","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=66303"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66303\/revisions"}],"predecessor-version":[{"id":66304,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66303\/revisions\/66304"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=66303"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=66303"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=66303"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}