{"id":172091,"date":"2024-11-07T10:14:19","date_gmt":"2024-11-07T02:14:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/172091\/"},"modified":"2024-11-07T10:14:20","modified_gmt":"2024-11-07T02:14:20","slug":"%e5%8f%96%e5%be%97sqlserver%e5%ad%97%e6%ae%b5%e7%9a%84%e8%a9%b3%e7%b4%b0%e8%a7%a3%e8%aa%aa","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/172091\/","title":{"rendered":"\u53d6\u5f97SQLServer\u5b57\u6bb5\u7684\u8a73\u7d30\u89e3\u8aaa"},"content":{"rendered":"<h1 id=\"%e5%8f%96%e5%be%97sql-server%e5%ad%97%e6%ae%b5%e7%9a%84%e8%a9%b3%e7%b4%b0%e8%a7%a3%e8%aa%aa-ZShUGphrUX\">\u53d6\u5f97SQL Server\u5b57\u6bb5\u7684\u8a73\u7d30\u89e3\u8aaa<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cSQL Server\u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u95dc\u806f\u5f0f\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u3002\u5b83\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u529f\u80fd\u4f86\u7ba1\u7406\u548c\u64cd\u4f5c\u8cc7\u6599\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u53d6\u5f97SQL Server\u4e2d\u7684\u5b57\u6bb5\u8a73\u7d30\u8cc7\u8a0a\uff0c\u5305\u62ec\u5b57\u6bb5\u7684\u5c6c\u6027\u3001\u985e\u578b\u53ca\u5176\u5728\u8cc7\u6599\u8868\u4e2d\u7684\u89d2\u8272\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afsql-server%e5%ad%97%e6%ae%b5%ef%bc%9f-ZShUGphrUX\">\u4ec0\u9ebc\u662fSQL Server\u5b57\u6bb5\uff1f<\/h2>\n<p>\u5728SQL Server\u4e2d\uff0c\u5b57\u6bb5\uff08Field\uff09\u662f\u8cc7\u6599\u8868\u4e2d\u7684\u4e00\u500b\u5217\uff08Column\uff09\uff0c\u7528\u4f86\u5132\u5b58\u7279\u5b9a\u985e\u578b\u7684\u8cc7\u6599\u3002\u6bcf\u500b\u5b57\u6bb5\u90fd\u6709\u5176\u540d\u7a31\u548c\u8cc7\u6599\u985e\u578b\uff0c\u4e26\u4e14\u53ef\u4ee5\u5305\u542b\u591a\u7a2e\u5c6c\u6027\uff0c\u4f8b\u5982\u662f\u5426\u5141\u8a31\u7a7a\u503c\u3001\u9810\u8a2d\u503c\u7b49\u3002\u7406\u89e3\u5b57\u6bb5\u7684\u7d50\u69cb\u548c\u5c6c\u6027\u5c0d\u65bc\u6709\u6548\u5730\u8a2d\u8a08\u548c\u67e5\u8a62\u8cc7\u6599\u5eab\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%8f%96%e5%be%97%e5%ad%97%e6%ae%b5%e7%9a%84%e8%a9%b3%e7%b4%b0%e8%b3%87%e8%a8%8a-ZShUGphrUX\">\u5982\u4f55\u53d6\u5f97\u5b57\u6bb5\u7684\u8a73\u7d30\u8cc7\u8a0a<\/h2>\n<p>\u8981\u53d6\u5f97SQL Server\u4e2d\u5b57\u6bb5\u7684\u8a73\u7d30\u8cc7\u8a0a\uff0c\u53ef\u4ee5\u4f7f\u7528\u7cfb\u7d71\u8996\u5716\u6216\u7cfb\u7d71\u5132\u5b58\u904e\u7a0b\u3002\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u7528\u7684\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8information_schema%e8%a6%96%e5%9c%96-ZShUGphrUX\">1. \u4f7f\u7528INFORMATION_SCHEMA\u8996\u5716<\/h3>\n<p>SQL Server\u63d0\u4f9b\u4e86INFORMATION_SCHEMA\u8996\u5716\uff0c\u9019\u662f\u4e00\u7d44\u7cfb\u7d71\u8996\u5716\uff0c\u5141\u8a31\u7528\u6236\u67e5\u8a62\u8cc7\u6599\u5eab\u7684\u7d50\u69cb\u8cc7\u8a0a\u3002\u8981\u53d6\u5f97\u7279\u5b9a\u8cc7\u6599\u8868\u7684\u5b57\u6bb5\u8cc7\u8a0a\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT COLUMN_NAME, DATA_TYPE, CHARACTER_MAXIMUM_LENGTH, IS_NULLABLE\nFROM INFORMATION_SCHEMA.COLUMNS\nWHERE TABLE_NAME = '\u4f60\u7684\u8cc7\u6599\u8868\u540d\u7a31';<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u6307\u5b9a\u8cc7\u6599\u8868\u4e2d\u6240\u6709\u5b57\u6bb5\u7684\u540d\u7a31\u3001\u8cc7\u6599\u985e\u578b\u3001\u6700\u5927\u5b57\u7b26\u9577\u5ea6\u53ca\u662f\u5426\u5141\u8a31\u7a7a\u503c\u7684\u8cc7\u8a0a\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8sys-columns%e7%b3%bb%e7%b5%b1%e8%a6%96%e5%9c%96-ZShUGphrUX\">2. \u4f7f\u7528sys.columns\u7cfb\u7d71\u8996\u5716<\/h3>\n<p>\u53e6\u4e00\u7a2e\u65b9\u6cd5\u662f\u4f7f\u7528sys.columns\u7cfb\u7d71\u8996\u5716\u3002\u9019\u500b\u8996\u5716\u63d0\u4f9b\u4e86\u66f4\u8a73\u7d30\u7684\u5b57\u6bb5\u8cc7\u8a0a\uff0c\u5305\u62ec\u5b57\u6bb5\u7684ID\u3001\u7269\u4ef6ID\u7b49\u3002\u4ee5\u4e0b\u662f\u67e5\u8a62\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>SELECT c.name AS ColumnName, t.name AS DataType, c.max_length, c.is_nullable\nFROM sys.columns c\nJOIN sys.types t ON c.user_type_id = t.user_type_id\nWHERE c.object_id = OBJECT_ID('\u4f60\u7684\u8cc7\u6599\u8868\u540d\u7a31');<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u8cc7\u6599\u8868\u4e2d\u6bcf\u500b\u5b57\u6bb5\u7684\u540d\u7a31\u3001\u8cc7\u6599\u985e\u578b\u3001\u6700\u5927\u9577\u5ea6\u53ca\u662f\u5426\u5141\u8a31\u7a7a\u503c\u7684\u8cc7\u8a0a\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8sp_help%e5%84%b2%e5%ad%98%e9%81%8e%e7%a8%8b-ZShUGphrUX\">3. \u4f7f\u7528sp_help\u5132\u5b58\u904e\u7a0b<\/h3>\n<p>SQL Server\u9084\u63d0\u4f9b\u4e86\u4e00\u500b\u65b9\u4fbf\u7684\u7cfb\u7d71\u5132\u5b58\u904e\u7a0bsp_help\uff0c\u53ef\u4ee5\u5feb\u901f\u7372\u53d6\u8cc7\u6599\u8868\u7684\u7d50\u69cb\u8cc7\u8a0a\u3002\u4f7f\u7528\u65b9\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>EXEC sp_help '\u4f60\u7684\u8cc7\u6599\u8868\u540d\u7a31';<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u5c07\u8fd4\u56de\u8cc7\u6599\u8868\u7684\u6240\u6709\u76f8\u95dc\u8cc7\u8a0a\uff0c\u5305\u62ec\u5b57\u6bb5\u540d\u7a31\u3001\u8cc7\u6599\u985e\u578b\u3001\u9810\u8a2d\u503c\u53ca\u7d22\u5f15\u7b49\u3002<\/p>\n<h2 id=\"%e5%ad%97%e6%ae%b5%e5%b1%ac%e6%80%a7%e8%a7%a3%e9%87%8b-ZShUGphrUX\">\u5b57\u6bb5\u5c6c\u6027\u89e3\u91cb<\/h2>\n<p>\u5728\u53d6\u5f97\u5b57\u6bb5\u8cc7\u8a0a\u5f8c\uff0c\u4e86\u89e3\u5404\u500b\u5c6c\u6027\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u5b57\u6bb5\u5c6c\u6027\u89e3\u91cb\uff1a<\/p>\n<ul>\n<li><strong>COLUMN_NAME\uff1a<\/strong>\u5b57\u6bb5\u7684\u540d\u7a31\u3002<\/li>\n<li><strong>DATA_TYPE\uff1a<\/strong>\u5b57\u6bb5\u7684\u8cc7\u6599\u985e\u578b\uff0c\u4f8b\u5982INT\u3001VARCHAR\u3001DATETIME\u7b49\u3002<\/li>\n<li><strong>CHARACTER_MAXIMUM_LENGTH\uff1a<\/strong>\u5c0d\u65bc\u5b57\u7b26\u578b\u8cc7\u6599\u985e\u578b\uff0c\u9019\u8868\u793a\u5b57\u6bb5\u53ef\u4ee5\u5132\u5b58\u7684\u6700\u5927\u5b57\u7b26\u6578\u3002<\/li>\n<li><strong>IS_NULLABLE\uff1a<\/strong>\u6307\u793a\u5b57\u6bb5\u662f\u5426\u5141\u8a31\u7a7a\u503c\uff0cYES\u8868\u793a\u5141\u8a31\uff0cNO\u8868\u793a\u4e0d\u5141\u8a31\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-ZShUGphrUX\">\u7d50\u8ad6<\/h2>\n<p>\u4e86\u89e3\u5982\u4f55\u53d6\u5f97SQL Server\u5b57\u6bb5\u7684\u8a73\u7d30\u8cc7\u8a0a\u5c0d\u65bc\u8cc7\u6599\u5eab\u7ba1\u7406\u548c\u67e5\u8a62\u512a\u5316\u81f3\u95dc\u91cd\u8981\u3002\u900f\u904e\u4f7f\u7528INFORMATION_SCHEMA\u8996\u5716\u3001sys.columns\u7cfb\u7d71\u8996\u5716\u53casp_help\u5132\u5b58\u904e\u7a0b\uff0c\u4f7f\u7528\u8005\u53ef\u4ee5\u8f15\u9b06\u7372\u53d6\u6240\u9700\u7684\u5b57\u6bb5\u8cc7\u8a0a\uff0c\u9032\u800c\u66f4\u6709\u6548\u5730\u8a2d\u8a08\u548c\u7ba1\u7406\u8cc7\u6599\u5eab\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5728\u9999\u6e2f\u7684\u4f3a\u670d\u5668\u4e0a\u904b\u884cSQL Server\uff0c\u6216\u5c0b\u627e\u5408\u9069\u7684<a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u4e86\u89e3\u5982\u4f55\u53d6\u5f97SQL Server\u5b57\u6bb5\u7684\u8a73\u7d30\u89e3\u8aaa\uff0c\u638c\u63e1\u6578\u64da\u5eab\u64cd\u4f5c\u8207\u67e5\u8a62\u6280\u5de7\uff0c\u63d0\u5347\u60a8\u7684SQL\u6280\u80fd\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-172091","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172091","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=172091"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172091\/revisions"}],"predecessor-version":[{"id":172092,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172091\/revisions\/172092"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=172091"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=172091"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=172091"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}