{"id":138471,"date":"2024-10-31T14:45:31","date_gmt":"2024-10-31T06:45:31","guid":{"rendered":"https:\/\/server.hk\/cnblog\/138471\/"},"modified":"2024-10-31T14:45:33","modified_gmt":"2024-10-31T06:45:33","slug":"sql-server%e5%89%b5%e5%bb%ba%e8%a1%a8%e7%9a%84%e7%9b%b8%e9%97%9c%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/138471\/","title":{"rendered":"sql server\u5275\u5efa\u8868\u7684\u76f8\u95dc\u6578\u64da\u985e\u578b"},"content":{"rendered":"<h1 id=\"sql-server%e5%89%b5%e5%bb%ba%e8%a1%a8%e7%9a%84%e7%9b%b8%e9%97%9c%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-zEzsbtJixy\">SQL Server\u5275\u5efa\u8868\u7684\u76f8\u95dc\u6578\u64da\u985e\u578b<\/h1>\n<p>\u5728\u4f7f\u7528SQL Server\u9032\u884c\u6578\u64da\u5eab\u8a2d\u8a08\u6642\uff0c\u5275\u5efa\u8868\u662f\u6700\u57fa\u672c\u7684\u64cd\u4f5c\u4e4b\u4e00\u3002\u8868\u7684\u8a2d\u8a08\u4e0d\u50c5\u5f71\u97ff\u6578\u64da\u7684\u5b58\u5132\u65b9\u5f0f\uff0c\u9084\u6703\u5f71\u97ff\u67e5\u8a62\u6027\u80fd\u548c\u6578\u64da\u5b8c\u6574\u6027\u3002\u672c\u6587\u5c07\u4ecb\u7d39SQL Server\u4e2d\u5275\u5efa\u8868\u6642\u53ef\u7528\u7684\u5404\u7a2e\u6578\u64da\u985e\u578b\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u4ee5\u6eff\u8db3\u61c9\u7528\u9700\u6c42\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e6%a6%82%e8%bf%b0-zEzsbtJixy\">\u6578\u64da\u985e\u578b\u6982\u8ff0<\/h2>\n<p>SQL Server\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u985e\u578b\uff0c\u4e3b\u8981\u53ef\u4ee5\u5206\u70ba\u4ee5\u4e0b\u5e7e\u985e\uff1a<\/p>\n<ul>\n<li><strong id=\"%e6%95%b4%e6%95%b8%e9%a1%9e%e5%9e%8b-zEzsbtJixy\">\u6574\u6578\u985e\u578b<\/strong>\uff1a\u7528\u65bc\u5b58\u5132\u6574\u6578\u503c\u3002<\/li>\n<li><strong id=\"%e6%b5%ae%e9%bb%9e%e6%95%b8%e9%a1%9e%e5%9e%8b-zEzsbtJixy\">\u6d6e\u9ede\u6578\u985e\u578b<\/strong>\uff1a\u7528\u65bc\u5b58\u5132\u5e36\u5c0f\u6578\u7684\u6578\u503c\u3002<\/li>\n<li><strong id=\"%e5%ad%97%e7%ac%a6%e9%a1%9e%e5%9e%8b-zEzsbtJixy\">\u5b57\u7b26\u985e\u578b<\/strong>\uff1a\u7528\u65bc\u5b58\u5132\u6587\u672c\u6578\u64da\u3002<\/li>\n<li><strong id=\"%e6%97%a5%e6%9c%9f%e5%92%8c%e6%99%82%e9%96%93%e9%a1%9e%e5%9e%8b-zEzsbtJixy\">\u65e5\u671f\u548c\u6642\u9593\u985e\u578b<\/strong>\uff1a\u7528\u65bc\u5b58\u5132\u65e5\u671f\u548c\u6642\u9593\u4fe1\u606f\u3002<\/li>\n<li><strong id=\"%e4%ba%8c%e9%80%b2%e5%88%b6%e9%a1%9e%e5%9e%8b-zEzsbtJixy\">\u4e8c\u9032\u5236\u985e\u578b<\/strong>\uff1a\u7528\u65bc\u5b58\u5132\u4e8c\u9032\u5236\u6578\u64da\u3002<\/li>\n<li><strong>\u5176\u4ed6\u985e\u578b<\/strong>\uff1a\u5982XML\u3001JSON\u7b49\u7279\u6b8a\u6578\u64da\u985e\u578b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%b4%e6%95%b8%e9%a1%9e%e5%9e%8b-zEzsbtJixy\">\u6574\u6578\u985e\u578b<\/h2>\n<p>\u6574\u6578\u985e\u578b\u5305\u62ec\u4ee5\u4e0b\u5e7e\u7a2e\uff1a<\/p>\n<ul>\n<li><code>TINYINT<\/code>\uff1a\u7bc4\u570d\u5f9e0\u5230255\uff0c\u4f54\u75281\u500b\u5b57\u7bc0\u3002<\/li>\n<li><code>SMALLINT<\/code>\uff1a\u7bc4\u570d\u5f9e-32,768\u523032,767\uff0c\u4f54\u75282\u500b\u5b57\u7bc0\u3002<\/li>\n<li><code>INT<\/code>\uff1a\u7bc4\u570d\u5f9e-2,147,483,648\u52302,147,483,647\uff0c\u4f54\u75284\u500b\u5b57\u7bc0\u3002<\/li>\n<li><code>BIGINT<\/code>\uff1a\u7bc4\u570d\u5f9e-9,223,372,036,854,775,808\u52309,223,372,036,854,775,807\uff0c\u4f54\u75288\u500b\u5b57\u7bc0\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b5%ae%e9%bb%9e%e6%95%b8%e9%a1%9e%e5%9e%8b-zEzsbtJixy\">\u6d6e\u9ede\u6578\u985e\u578b<\/h2>\n<p>\u6d6e\u9ede\u6578\u985e\u578b\u4e3b\u8981\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>FLOAT<\/code>\uff1a\u53ef\u5b58\u5132\u7684\u6578\u503c\u7bc4\u570d\u975e\u5e38\u5927\uff0c\u4f54\u75284\u62168\u500b\u5b57\u7bc0\uff0c\u5177\u9ad4\u53d6\u6c7a\u65bc\u7cbe\u5ea6\u3002<\/li>\n<li><code>REAL<\/code>\uff1a\u55ae\u7cbe\u5ea6\u6d6e\u9ede\u6578\uff0c\u4f54\u75284\u500b\u5b57\u7bc0\u3002<\/li>\n<li><code>DECIMAL(p,s)<\/code>\uff1a\u7cbe\u78ba\u7684\u6578\u503c\u985e\u578b\uff0c<code>p<\/code>\u8868\u793a\u7e3d\u4f4d\u6578\uff0c<code>s<\/code>\u8868\u793a\u5c0f\u6578\u4f4d\u6578\uff0c\u4f54\u7528\u7684\u5b57\u7bc0\u6578\u6839\u64da\n<p>\u548c<s>\u7684\u503c\u800c\u5b9a\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%ad%97%e7%ac%a6%e9%a1%9e%e5%9e%8b-zEzsbtJixy\">\u5b57\u7b26\u985e\u578b<\/h2>\n<p>\u5b57\u7b26\u985e\u578b\u7528\u65bc\u5b58\u5132\u6587\u672c\u6578\u64da\uff0c\u4e3b\u8981\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>CHAR(n)<\/code>\uff1a\u56fa\u5b9a\u9577\u5ea6\u7684\u5b57\u7b26\u985e\u578b\uff0c<code>n<\/code>\u7bc4\u570d\u5f9e1\u52308,000\u3002<\/li>\n<li><code>VARCHAR(n)<\/code>\uff1a\u53ef\u8b8a\u9577\u5ea6\u7684\u5b57\u7b26\u985e\u578b\uff0c<code>n<\/code>\u7bc4\u570d\u5f9e1\u52308,000\u3002<\/li>\n<li><code>NCHAR(n)<\/code>\uff1a\u56fa\u5b9a\u9577\u5ea6\u7684Unicode\u5b57\u7b26\u985e\u578b\u3002<\/li>\n<li><code>NVARCHAR(n)<\/code>\uff1a\u53ef\u8b8a\u9577\u5ea6\u7684Unicode\u5b57\u7b26\u985e\u578b\u3002<\/li>\n<li><code>TEXT<\/code>\uff1a\u7528\u65bc\u5b58\u5132\u9577\u6587\u672c\u6578\u64da\uff0c\u6700\u5927\u53ef\u90542GB\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%97%a5%e6%9c%9f%e5%92%8c%e6%99%82%e9%96%93%e9%a1%9e%e5%9e%8b-zEzsbtJixy\">\u65e5\u671f\u548c\u6642\u9593\u985e\u578b<\/h2>\n<p>SQL Server\u63d0\u4f9b\u4e86\u591a\u7a2e\u65e5\u671f\u548c\u6642\u9593\u985e\u578b\uff1a<\/p>\n<ul>\n<li><code>DATE<\/code>\uff1a\u53ea\u5b58\u5132\u65e5\u671f\uff0c\u7bc4\u570d\u5f9e0001-01-01\u52309999-12-31\u3002<\/li>\n<li><code>TIME<\/code>\uff1a\u53ea\u5b58\u5132\u6642\u9593\uff0c\u7bc4\u570d\u5f9e00:00:00.0000000\u523023:59:59.9999999\u3002<\/li>\n<li><code>DATETIME<\/code>\uff1a\u540c\u6642\u5b58\u5132\u65e5\u671f\u548c\u6642\u9593\uff0c\u7bc4\u570d\u5f9e1753-01-01\u52309999-12-31\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<\/ul>\n<h2 id=\"%e4%ba%8c%e9%80%b2%e5%88%b6%e9%a1%9e%e5%9e%8b-zEzsbtJixy\">\u4e8c\u9032\u5236\u985e\u578b<\/h2>\n<p>\u4e8c\u9032\u5236\u985e\u578b\u7528\u65bc\u5b58\u5132\u4e8c\u9032\u5236\u6578\u64da\uff0c\u4e3b\u8981\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>BINARY(n)<\/code>\uff1a\u56fa\u5b9a\u9577\u5ea6\u7684\u4e8c\u9032\u5236\u6578\u64da\u3002<\/li>\n<li><code>VARBINARY(n)<\/code>\uff1a\u53ef\u8b8a\u9577\u5ea6\u7684\u4e8c\u9032\u5236\u6578\u64da\u3002<\/li>\n<li><code>IMAGE<\/code>\uff1a\u7528\u65bc\u5b58\u5132\u9577\u4e8c\u9032\u5236\u6578\u64da\uff0c\u6700\u5927\u53ef\u90542GB\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%85%b6%e4%bb%96%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-zEzsbtJixy\">\u5176\u4ed6\u6578\u64da\u985e\u578b<\/h2>\n<p>\u9664\u4e86\u4e0a\u8ff0\u5e38\u898b\u7684\u6578\u64da\u985e\u578b\uff0cSQL Server\u9084\u652f\u6301\u4e00\u4e9b\u7279\u6b8a\u7684\u6578\u64da\u985e\u578b\uff0c\u5982\uff1a<\/p>\n<ul>\n<li><code>XML<\/code>\uff1a\u7528\u65bc\u5b58\u5132XML\u6578\u64da\u3002<\/li>\n<li><code>JSON<\/code>\uff1a\u96d6\u7136SQL Server\u6c92\u6709\u5c08\u9580\u7684JSON\u6578\u64da\u985e\u578b\uff0c\u4f46\u53ef\u4ee5\u4f7f\u7528NVARCHAR\u4f86\u5b58\u5132JSON\u683c\u5f0f\u7684\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-zEzsbtJixy\">\u7e3d\u7d50<\/h2>\n<p>\u5728SQL Server\u4e2d\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u5c0d\u65bc\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u81f3\u95dc\u91cd\u8981\u3002\u958b\u767c\u8005\u61c9\u6839\u64da\u5be6\u969b\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u67e5\u8a62\u6548\u7387\u3002\u4e86\u89e3\u5404\u7a2e\u6578\u64da\u985e\u578b\u7684\u7279\u6027\u548c\u4f7f\u7528\u5834\u666f\uff0c\u5c07\u6709\u52a9\u65bc\u66f4\u597d\u5730\u8a2d\u8a08\u6578\u64da\u5eab\u7d50\u69cb\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u6578\u64da\u5eab\u6258\u7ba1\u9084\u662f\u61c9\u7528\u7a0b\u5e8f\u90e8\u7f72\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3SQL Server\u5275\u5efa\u8868\u6642\u7684\u5404\u7a2e\u6578\u64da\u985e\u578b\uff0c\u5305\u62ec\u6574\u6578\u3001\u6d6e\u9ede\u6578\u3001\u5b57\u7b26\u3001\u65e5\u671f\u7b49\uff0c\u5e6b\u52a9\u60a8\u8a2d\u8a08\u9ad8\u6548\u7684\u6578\u64da\u5eab\u7d50\u69cb\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-138471","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/138471","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=138471"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/138471\/revisions"}],"predecessor-version":[{"id":138472,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/138471\/revisions\/138472"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=138471"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=138471"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=138471"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}