{"id":66369,"date":"2024-10-14T16:55:13","date_gmt":"2024-10-14T08:55:13","guid":{"rendered":"https:\/\/server.hk\/cnblog\/66369\/"},"modified":"2024-10-14T16:55:14","modified_gmt":"2024-10-14T08:55:14","slug":"mssql%e4%b8%ad%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8%e6%8c%87%e5%ae%9a%e7%9a%84%e5%88%97%ef%bc%88mssql%e5%88%97%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/66369\/","title":{"rendered":"MSSQL\u4e2d\u662f\u5426\u5b58\u5728\u6307\u5b9a\u7684\u5217\uff08mssql\u5217\u662f\u5426\u5b58\u5728\uff09"},"content":{"rendered":"<h1 id=\"mssql%e4%b8%ad%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8%e6%8c%87%e5%ae%9a%e7%9a%84%e5%88%97%ef%bc%88mssql%e5%88%97%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8%ef%bc%89-fUeNTVbluY\">MSSQL\u4e2d\u662f\u5426\u5b58\u5728\u6307\u5b9a\u7684\u5217\uff08mssql\u5217\u662f\u5426\u5b58\u5728\uff09<\/h1>\n<p>\u5728\u4f7f\u7528Microsoft SQL Server\uff08MSSQL\uff09\u9032\u884c\u6578\u64da\u5eab\u7ba1\u7406\u6642\uff0c\u7d93\u5e38\u9700\u8981\u6aa2\u67e5\u67d0\u500b\u7279\u5b9a\u7684\u5217\u662f\u5426\u5b58\u5728\u65bc\u67d0\u500b\u8868\u4e2d\u3002\u9019\u5728\u9032\u884c\u6578\u64da\u9077\u79fb\u3001\u8868\u7d50\u69cb\u8b8a\u66f4\u6216\u6578\u64da\u9a57\u8b49\u6642\u5c24\u70ba\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728MSSQL\u4e2d\u6aa2\u67e5\u5217\u7684\u5b58\u5728\u6027\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u7bc4\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e6%aa%a2%e6%9f%a5%e5%88%97%e7%9a%84%e5%ad%98%e5%9c%a8%e6%80%a7-fUeNTVbluY\">\u70ba\u4ec0\u9ebc\u9700\u8981\u6aa2\u67e5\u5217\u7684\u5b58\u5728\u6027<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\uff0c\u6aa2\u67e5\u5217\u7684\u5b58\u5728\u6027\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u907f\u514d\u57f7\u884c\u4e0d\u5fc5\u8981\u7684\u67e5\u8a62\u6216\u64cd\u4f5c\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u548c\u6548\u7387\u3002\u7279\u5225\u662f\u5728\u52d5\u614b\u751f\u6210SQL\u67e5\u8a62\u6216\u9032\u884c\u6578\u64da\u9077\u79fb\u6642\uff0c\u78ba\u4fdd\u5217\u7684\u5b58\u5728\u6027\u53ef\u4ee5\u9632\u6b62\u904b\u884c\u6642\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e6%aa%a2%e6%9f%a5%e5%88%97%e5%ad%98%e5%9c%a8%e6%80%a7%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%96%b9%e6%b3%95-fUeNTVbluY\">\u6aa2\u67e5\u5217\u5b58\u5728\u6027\u7684\u57fa\u672c\u65b9\u6cd5<\/h2>\n<p>\u5728MSSQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u7cfb\u7d71\u8996\u5716\u4f86\u6aa2\u67e5\u67d0\u500b\u5217\u662f\u5426\u5b58\u5728\u3002\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u7528\u7684\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"%e6%96%b9%e6%b3%95%e4%b8%80%ef%bc%9a%e4%bd%bf%e7%94%a8information_schema-columns-fUeNTVbluY\">\u65b9\u6cd5\u4e00\uff1a\u4f7f\u7528INFORMATION_SCHEMA.COLUMNS<\/h3>\n<pre><code>\nSELECT COLUMN_NAME \nFROM INFORMATION_SCHEMA.COLUMNS \nWHERE TABLE_NAME = '\u4f60\u7684\u8868\u540d' \nAND COLUMN_NAME = '\u4f60\u7684\u5217\u540d';\n<\/code><\/pre>\n<p>\u9019\u6bb5\u67e5\u8a62\u5c07\u8fd4\u56de\u6307\u5b9a\u8868\u4e2d\u6307\u5b9a\u5217\u7684\u540d\u7a31\u3002\u5982\u679c\u8fd4\u56de\u7d50\u679c\u70ba\u7a7a\uff0c\u5247\u8868\u793a\u8a72\u5217\u4e0d\u5b58\u5728\u3002<\/p>\n<h3 id=\"%e6%96%b9%e6%b3%95%e4%ba%8c%ef%bc%9a%e4%bd%bf%e7%94%a8sys-columns%e7%b3%bb%e7%b5%b1%e8%a6%96%e5%9c%96-fUeNTVbluY\">\u65b9\u6cd5\u4e8c\uff1a\u4f7f\u7528sys.columns\u7cfb\u7d71\u8996\u5716<\/h3>\n<pre><code>\nSELECT name \nFROM sys.columns \nWHERE object_id = OBJECT_ID('\u4f60\u7684\u8868\u540d') \nAND name = '\u4f60\u7684\u5217\u540d';\n<\/code><\/pre>\n<p>\u9019\u6bb5\u67e5\u8a62\u540c\u6a23\u6703\u8fd4\u56de\u6307\u5b9a\u5217\u7684\u540d\u7a31\uff0c\u4e26\u4e14\u53ef\u4ee5\u7528\u65bc\u66f4\u8907\u96dc\u7684\u67e5\u8a62\u4e2d\u3002<\/p>\n<h2 id=\"%e7%af%84%e4%be%8b%ef%bc%9a%e6%aa%a2%e6%9f%a5%e5%88%97%e7%9a%84%e5%ad%98%e5%9c%a8%e6%80%a7-fUeNTVbluY\">\u7bc4\u4f8b\uff1a\u6aa2\u67e5\u5217\u7684\u5b58\u5728\u6027<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba\u201cEmployees\u201d\u7684\u8868\uff0c\u6211\u5011\u60f3\u6aa2\u67e5\u662f\u5426\u5b58\u5728\u540d\u70ba\u201cEmail\u201d\u7684\u5217\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n<pre><code>\nIF EXISTS (\n    SELECT * \n    FROM INFORMATION_SCHEMA.COLUMNS \n    WHERE TABLE_NAME = 'Employees' \n    AND COLUMN_NAME = 'Email'\n)\nBEGIN\n    PRINT '\u5217\u5b58\u5728';\nEND\nELSE\nBEGIN\n    PRINT '\u5217\u4e0d\u5b58\u5728';\nEND\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u6aa2\u67e5\u201cEmployees\u201d\u8868\u4e2d\u662f\u5426\u5b58\u5728\u201cEmail\u201d\u5217\uff0c\u4e26\u6839\u64da\u7d50\u679c\u8f38\u51fa\u76f8\u61c9\u7684\u6d88\u606f\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-fUeNTVbluY\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u5728\u4f7f\u7528INFORMATION_SCHEMA.COLUMNS\u6642\uff0c\u8acb\u78ba\u4fdd\u8868\u540d\u548c\u5217\u540d\u7684\u62fc\u5beb\u6b63\u78ba\u3002<\/li>\n<li>\u5728\u5927\u578b\u6578\u64da\u5eab\u4e2d\uff0c\u67e5\u8a62\u7cfb\u7d71\u8996\u5716\u53ef\u80fd\u6703\u5f71\u97ff\u6027\u80fd\uff0c\u56e0\u6b64\u61c9\u8b39\u614e\u4f7f\u7528\u3002<\/li>\n<li>\u5982\u679c\u8868\u540d\u5305\u542b\u7279\u6b8a\u5b57\u7b26\uff0c\u8acb\u4f7f\u7528\u65b9\u62ec\u865f\u5c07\u5176\u62ec\u8d77\u4f86\uff0c\u4f8b\u5982 [\u4f60\u7684\u8868\u540d]\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-fUeNTVbluY\">\u7e3d\u7d50<\/h2>\n<p>\u5728MSSQL\u4e2d\u6aa2\u67e5\u5217\u7684\u5b58\u5728\u6027\u662f\u4e00\u500b\u91cd\u8981\u7684\u64cd\u4f5c\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u932f\u8aa4\u548c\u6027\u80fd\u554f\u984c\u3002\u901a\u904e\u4f7f\u7528INFORMATION_SCHEMA.COLUMNS\u6216sys.columns\u7cfb\u7d71\u8996\u5716\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u78ba\u8a8d\u67d0\u500b\u5217\u662f\u5426\u5b58\u5728\u65bc\u6307\u5b9a\u7684\u8868\u4e2d\u3002\u9019\u4e9b\u65b9\u6cd5\u4e0d\u50c5\u7c21\u55ae\u6613\u7528\uff0c\u9084\u80fd\u63d0\u9ad8\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u5b89\u5168\u6027\u548c\u6548\u7387\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\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u6578\u64da\u5eab\u7ba1\u7406\u9084\u662f\u7db2\u7ad9\u6258\u7ba1\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u8ba8\u5982\u4f55\u5728MSSQL\u4e2d\u68c0\u67e5\u6307\u5b9a\u5217\u662f\u5426\u5b58\u5728\u7684\u65b9\u6cd5\u4e0e\u6280\u5de7\uff0c\u786e\u4fdd\u6570\u636e\u5e93\u64cd\u4f5c\u7684\u51c6\u786e\u6027\u4e0e\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-66369","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66369","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=66369"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66369\/revisions"}],"predecessor-version":[{"id":66370,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66369\/revisions\/66370"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=66369"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=66369"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=66369"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}