{"id":136857,"date":"2024-10-31T11:53:26","date_gmt":"2024-10-31T03:53:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/136857\/"},"modified":"2024-10-31T11:53:27","modified_gmt":"2024-10-31T03:53:27","slug":"sql-server-2008%e5%ad%97%e6%ae%b5%e9%a1%9e%e5%9e%8b%e8%aa%aa%e6%98%8e%e4%b8%80%e8%a6%bd","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/136857\/","title":{"rendered":"Sql server 2008\u5b57\u6bb5\u985e\u578b\u8aaa\u660e\u4e00\u89bd"},"content":{"rendered":"<h1 id=\"sql-server-2008-%e5%ad%97%e6%ae%b5%e9%a1%9e%e5%9e%8b%e8%aa%aa%e6%98%8e%e4%b8%80%e8%a6%bd-zTJnrWRJcO\">SQL Server 2008 \u5b57\u6bb5\u985e\u578b\u8aaa\u660e\u4e00\u89bd<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u5b57\u6bb5\u985e\u578b\u662f\u5b9a\u7fa9\u8cc7\u6599\u8868\u4e2d\u6bcf\u4e00\u5217\u8cc7\u6599\u7684\u57fa\u672c\u5c6c\u6027\u3002SQL Server 2008 \u63d0\u4f9b\u4e86\u591a\u7a2e\u5b57\u6bb5\u985e\u578b\uff0c\u4ee5\u6eff\u8db3\u4e0d\u540c\u7684\u8cc7\u6599\u5b58\u5132\u9700\u6c42\u3002\u672c\u6587\u5c07\u5c0d SQL Server 2008 \u4e2d\u7684\u4e3b\u8981\u5b57\u6bb5\u985e\u578b\u9032\u884c\u8a73\u7d30\u8aaa\u660e\uff0c\u5e6b\u52a9\u4f7f\u7528\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u9078\u64c7\u5408\u9069\u7684\u5b57\u6bb5\u985e\u578b\u3002<\/p>\n<h2 id=\"1-%e6%95%b4%e6%95%b8%e9%a1%9e%e5%9e%8b-zTJnrWRJcO\">1. \u6574\u6578\u985e\u578b<\/h2>\n<p>\u6574\u6578\u985e\u578b\u7528\u65bc\u5b58\u5132\u6574\u6578\u503c\uff0cSQL Server 2008 \u63d0\u4f9b\u4e86\u591a\u7a2e\u6574\u6578\u985e\u578b\uff0c\u6839\u64da\u6240\u9700\u7684\u5b58\u5132\u5927\u5c0f\u548c\u7bc4\u570d\u9032\u884c\u9078\u64c7\uff1a<\/p>\n<ul>\n<li><code>TINYINT<\/code>: \u4f54\u7528 1 \u5b57\u7bc0\uff0c\u7bc4\u570d\u5f9e 0 \u5230 255\u3002<\/li>\n<li><code>SMALLINT<\/code>: \u4f54\u7528 2 \u5b57\u7bc0\uff0c\u7bc4\u570d\u5f9e -32,768 \u5230 32,767\u3002<\/li>\n<li><code>INT<\/code>: \u4f54\u7528 4 \u5b57\u7bc0\uff0c\u7bc4\u570d\u5f9e -2,147,483,648 \u5230 2,147,483,647\u3002<\/li>\n<li><code>BIGINT<\/code>: \u4f54\u7528 8 \u5b57\u7bc0\uff0c\u7bc4\u570d\u5f9e -9,223,372,036,854,775,808 \u5230 9,223,372,036,854,775,807\u3002<\/li>\n<\/ul>\n<h2 id=\"2-%e6%b5%ae%e9%bb%9e%e6%95%b8%e9%a1%9e%e5%9e%8b-zTJnrWRJcO\">2. \u6d6e\u9ede\u6578\u985e\u578b<\/h2>\n<p>\u6d6e\u9ede\u6578\u985e\u578b\u7528\u65bc\u5b58\u5132\u5e36\u5c0f\u6578\u7684\u6578\u503c\uff0c\u4e3b\u8981\u6709\u4ee5\u4e0b\u5e7e\u7a2e\uff1a<\/p>\n<ul>\n<li><code>FLOAT<\/code>: \u53ef\u8b8a\u7cbe\u5ea6\u7684\u6d6e\u9ede\u6578\uff0c\u4f54\u7528 4 \u6216 8 \u5b57\u7bc0\uff0c\u6839\u64da\u7cbe\u5ea6\u800c\u5b9a\u3002<\/li>\n<li><code>REAL<\/code>: \u4f54\u7528 4 \u5b57\u7bc0\uff0c\u7cbe\u5ea6\u70ba 7 \u4f4d\u5341\u9032\u5236\u6578\u3002<\/li>\n<li><code>DECIMAL(p, s)<\/code>: \u7cbe\u78ba\u6578\u5b57\uff0c<code>p<\/code> \u662f\u7e3d\u4f4d\u6578\uff0c<code>s<\/code> \u662f\u5c0f\u6578\u4f4d\u6578\uff0c\u4f54\u7528\u7684\u5b57\u7bc0\u6578\u6839\u64da <code>p<\/code> \u7684\u5927\u5c0f\u800c\u8b8a\u5316\u3002<\/li>\n<\/ul>\n<h2 id=\"3-%e5%ad%97%e7%ac%a6%e4%b8%b2%e9%a1%9e%e5%9e%8b-zTJnrWRJcO\">3. \u5b57\u7b26\u4e32\u985e\u578b<\/h2>\n<p>\u5b57\u7b26\u4e32\u985e\u578b\u7528\u65bc\u5b58\u5132\u6587\u672c\u8cc7\u6599\uff0cSQL Server 2008 \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff1a<\/p>\n<ul>\n<li><code>CHAR(n)<\/code>: \u56fa\u5b9a\u9577\u5ea6\u7684\u5b57\u7b26\u4e32\uff0c\u4f54\u7528 <code>n<\/code> \u5b57\u7bc0\u3002<\/li>\n<li><code>VARCHAR(n)<\/code>: \u53ef\u8b8a\u9577\u5ea6\u7684\u5b57\u7b26\u4e32\uff0c\u6700\u5927\u53ef\u9054 <code>8,000<\/code> \u5b57\u7bc0\u3002<\/li>\n<li><code>NCHAR(n)<\/code>: \u56fa\u5b9a\u9577\u5ea6\u7684 Unicode \u5b57\u7b26\u4e32\uff0c\u4f54\u7528 <code>2n<\/code> \u5b57\u7bc0\u3002<\/li>\n<li><code>NVARCHAR(n)<\/code>: \u53ef\u8b8a\u9577\u5ea6\u7684 Unicode \u5b57\u7b26\u4e32\uff0c\u6700\u5927\u53ef\u9054 <code>4,000<\/code> \u5b57\u7bc0\u3002<\/li>\n<li><code>TEXT<\/code>: \u7528\u65bc\u5b58\u5132\u9577\u6587\u672c\u8cc7\u6599\uff0c\u6700\u5927\u53ef\u9054 <code>2^31-1<\/code> \u5b57\u7bc0\u3002<\/li>\n<\/ul>\n<h2 id=\"4-%e6%97%a5%e6%9c%9f%e5%92%8c%e6%99%82%e9%96%93%e9%a1%9e%e5%9e%8b-zTJnrWRJcO\">4. \u65e5\u671f\u548c\u6642\u9593\u985e\u578b<\/h2>\n<p>SQL Server 2008 \u63d0\u4f9b\u4e86\u591a\u7a2e\u65e5\u671f\u548c\u6642\u9593\u985e\u578b\uff0c\u4ee5\u4fbf\u65bc\u8655\u7406\u6642\u9593\u76f8\u95dc\u7684\u8cc7\u6599\uff1a<\/p>\n<ul>\n<li><code>DATE<\/code>: \u5b58\u5132\u65e5\u671f\uff0c\u7bc4\u570d\u5f9e <code>0001-01-01<\/code> \u5230 <code>9999-12-31<\/code>\u3002<\/li>\n<li><code>TIME<\/code>: \u5b58\u5132\u6642\u9593\uff0c\u7bc4\u570d\u5f9e <code>00:00:00.0000000<\/code> \u5230 <code>23:59:59.9999999<\/code>\u3002<\/li>\n<li><code>DATETIME<\/code>: \u5b58\u5132\u65e5\u671f\u548c\u6642\u9593\uff0c\u7bc4\u570d\u5f9e <code>1753-01-01<\/code> \u5230 <code>9999-12-31<\/code>\u3002<\/li>\n<li><code>DATETIME2<\/code>: \u64f4\u5c55\u7684\u65e5\u671f\u548c\u6642\u9593\u985e\u578b\uff0c\u7bc4\u570d\u66f4\u5ee3\uff0c\u7cbe\u5ea6\u66f4\u9ad8\u3002<\/li>\n<\/ul>\n<h2 id=\"5-%e4%ba%8c%e9%80%b2%e5%88%b6%e9%a1%9e%e5%9e%8b-zTJnrWRJcO\">5. \u4e8c\u9032\u5236\u985e\u578b<\/h2>\n<p>\u4e8c\u9032\u5236\u985e\u578b\u7528\u65bc\u5b58\u5132\u4e8c\u9032\u5236\u8cc7\u6599\uff0c\u5982\u5716\u50cf\u6216\u6587\u4ef6\uff1a<\/p>\n<ul>\n<li><code>BINARY(n)<\/code>: \u56fa\u5b9a\u9577\u5ea6\u7684\u4e8c\u9032\u5236\u6578\u64da\uff0c\u4f54\u7528 <code>n<\/code> \u5b57\u7bc0\u3002<\/li>\n<li><code>VARBINARY(n)<\/code>: \u53ef\u8b8a\u9577\u5ea6\u7684\u4e8c\u9032\u5236\u6578\u64da\uff0c\u6700\u5927\u53ef\u9054 <code>8,000<\/code> \u5b57\u7bc0\u3002<\/li>\n<li><code>IMAGE<\/code>: \u7528\u65bc\u5b58\u5132\u9577\u4e8c\u9032\u5236\u6578\u64da\uff0c\u6700\u5927\u53ef\u9054 <code>2^31-1<\/code> \u5b57\u7bc0\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-zTJnrWRJcO\">\u7e3d\u7d50<\/h2>\n<p>\u4e86\u89e3 SQL Server 2008 \u7684\u5b57\u6bb5\u985e\u578b\u5c0d\u65bc\u8a2d\u8a08\u9ad8\u6548\u7684\u8cc7\u6599\u5eab\u7d50\u69cb\u81f3\u95dc\u91cd\u8981\u3002\u9078\u64c7\u5408\u9069\u7684\u5b57\u6bb5\u985e\u578b\u4e0d\u50c5\u80fd\u63d0\u9ad8\u8cc7\u6599\u5b58\u53d6\u6548\u7387\uff0c\u9084\u80fd\u7bc0\u7701\u5b58\u5132\u7a7a\u9593\u3002\u7121\u8ad6\u662f\u6574\u6578\u3001\u6d6e\u9ede\u6578\u3001\u5b57\u7b26\u4e32\u3001\u65e5\u671f\u6642\u9593\u9084\u662f\u4e8c\u9032\u5236\u985e\u578b\uff0c\u6b63\u78ba\u7684\u9078\u64c7\u90fd\u80fd\u70ba\u8cc7\u6599\u5eab\u7684\u6027\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u6253\u4e0b\u826f\u597d\u7684\u57fa\u790e\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u548c\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3SQL Server 2008\u7684\u5b57\u6bb5\u985e\u578b\uff0c\u5305\u62ec\u6578\u64da\u985e\u578b\u3001\u7279\u6027\u53ca\u4f7f\u7528\u5834\u666f\uff0c\u52a9\u60a8\u66f4\u6709\u6548\u5730\u8a2d\u8a08\u6578\u64da\u5eab\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-136857","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/136857","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=136857"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/136857\/revisions"}],"predecessor-version":[{"id":136858,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/136857\/revisions\/136858"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=136857"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=136857"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=136857"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}