{"id":64819,"date":"2024-10-14T11:56:14","date_gmt":"2024-10-14T03:56:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/64819\/"},"modified":"2024-10-14T11:56:14","modified_gmt":"2024-10-14T03:56:14","slug":"mssql%e6%8b%b7%e8%b2%9d%e8%a1%a8%e7%b5%90%e6%a7%8b%e5%af%a6%e7%8f%be%e5%bf%ab%e9%80%9f%e5%89%b5%e5%bb%ba%ef%bc%88mssql%e6%8b%b7%e8%b2%9d%e4%b8%80%e5%80%8b%e8%a1%a8%e7%b5%90%e6%a7%8b%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/64819\/","title":{"rendered":"MSSQL\u62f7\u8c9d\u8868\u7d50\u69cb\u5be6\u73fe\u5feb\u901f\u5275\u5efa\uff08mssql\u62f7\u8c9d\u4e00\u500b\u8868\u7d50\u69cb\uff09"},"content":{"rendered":"<h1 id=\"mssql%e6%8b%b7%e8%b2%9d%e8%a1%a8%e7%b5%90%e6%a7%8b%e5%af%a6%e7%8f%be%e5%bf%ab%e9%80%9f%e5%89%b5%e5%bb%ba-ElPCCcfjtW\">MSSQL\u62f7\u8c9d\u8868\u7d50\u69cb\u5be6\u73fe\u5feb\u901f\u5275\u5efa<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u7d93\u5e38\u9700\u8981\u5275\u5efa\u65b0\u8868\u4ee5\u5b58\u5132\u6578\u64da\u3002\u7576\u65b0\u8868\u7684\u7d50\u69cb\u8207\u73fe\u6709\u8868\u76f8\u4f3c\u6642\uff0c\u624b\u52d5\u5b9a\u7fa9\u6bcf\u4e00\u500b\u6b04\u4f4d\u53ef\u80fd\u6703\u975e\u5e38\u7e41\u7463\u3002\u9019\u6642\uff0c\u4f7f\u7528MSSQL\u7684\u62f7\u8c9d\u8868\u7d50\u69cb\u529f\u80fd\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u6548\u7387\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728MSSQL\u4e2d\u5feb\u901f\u62f7\u8c9d\u8868\u7d50\u69cb\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u7bc4\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e6%8b%b7%e8%b2%9d%e8%a1%a8%e7%b5%90%e6%a7%8b%ef%bc%9f-ElPCCcfjtW\">\u70ba\u4ec0\u9ebc\u9700\u8981\u62f7\u8c9d\u8868\u7d50\u69cb\uff1f<\/h2>\n<p>\u62f7\u8c9d\u8868\u7d50\u69cb\u7684\u4e3b\u8981\u539f\u56e0\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u5feb\u901f\u5275\u5efa\u65b0\u8868\uff1a\u7576\u65b0\u8868\u7684\u7d50\u69cb\u8207\u73fe\u6709\u8868\u76f8\u4f3c\u6642\uff0c\u62f7\u8c9d\u7d50\u69cb\u53ef\u4ee5\u7bc0\u7701\u6642\u9593\u3002<\/li>\n<li>\u4fdd\u6301\u4e00\u81f4\u6027\uff1a\u78ba\u4fdd\u65b0\u8868\u7684\u6b04\u4f4d\u985e\u578b\u548c\u7d04\u675f\u8207\u539f\u8868\u4e00\u81f4\uff0c\u907f\u514d\u624b\u52d5\u932f\u8aa4\u3002<\/li>\n<li>\u6e2c\u8a66\u548c\u958b\u767c\uff1a\u5728\u958b\u767c\u904e\u7a0b\u4e2d\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528\u62f7\u8c9d\u7684\u8868\u7d50\u69cb\u9032\u884c\u6e2c\u8a66\uff0c\u800c\u4e0d\u5f71\u97ff\u539f\u59cb\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"mssql%e6%8b%b7%e8%b2%9d%e8%a1%a8%e7%b5%90%e6%a7%8b%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-ElPCCcfjtW\">MSSQL\u62f7\u8c9d\u8868\u7d50\u69cb\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<p>\u5728MSSQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u6cd5\u4f86\u62f7\u8c9d\u8868\u7d50\u69cb\uff1a<\/p>\n<pre><code>SELECT *\nINTO \u65b0\u8868\u540d\nFROM \u539f\u8868\u540d\nWHERE 1 = 0;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u7684\u95dc\u9375\u5728\u65bc\u4f7f\u7528\u4e86\u689d\u4ef6 <code>WHERE 1 = 0<\/code>\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u4e0d\u6703\u62f7\u8c9d\u4efb\u4f55\u6578\u64da\uff0c\u53ea\u6703\u5275\u5efa\u4e00\u500b\u7a7a\u7684\u65b0\u8868\u3002<\/p>\n<h2 id=\"%e7%af%84%e4%be%8b%ef%bc%9a%e6%8b%b7%e8%b2%9d%e8%a1%a8%e7%b5%90%e6%a7%8b-ElPCCcfjtW\">\u7bc4\u4f8b\uff1a\u62f7\u8c9d\u8868\u7d50\u69cb<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>Employees<\/code> \u7684\u8868\uff0c\u73fe\u5728\u6211\u5011\u60f3\u8981\u5275\u5efa\u4e00\u500b\u540d\u70ba <code>Employees_Copy<\/code> \u7684\u65b0\u8868\uff0c\u4e26\u62f7\u8c9d\u5176\u7d50\u69cb\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\uff1a<\/p>\n<pre><code>SELECT *\nINTO Employees_Copy\nFROM Employees\nWHERE 1 = 0;<\/code><\/pre>\n<p>\u57f7\u884c\u4e0a\u8ff0\u8a9e\u53e5\u5f8c\uff0c\u5c07\u6703\u5728\u6578\u64da\u5eab\u4e2d\u5275\u5efa\u4e00\u500b\u540d\u70ba <code>Employees_Copy<\/code> \u7684\u65b0\u8868\uff0c\u8a72\u8868\u7684\u7d50\u69cb\u8207 <code>Employees<\/code> \u8868\u5b8c\u5168\u76f8\u540c\uff0c\u4f46\u4e0d\u5305\u542b\u4efb\u4f55\u6578\u64da\u3002<\/p>\n<h2 id=\"%e6%8b%b7%e8%b2%9d%e8%a1%a8%e7%b5%90%e6%a7%8b%e4%b8%a6%e6%b7%bb%e5%8a%a0%e7%b4%84%e6%9d%9f-ElPCCcfjtW\">\u62f7\u8c9d\u8868\u7d50\u69cb\u4e26\u6dfb\u52a0\u7d04\u675f<\/h2>\n<p>\u5982\u679c\u9700\u8981\u5728\u62f7\u8c9d\u8868\u7d50\u69cb\u7684\u540c\u6642\u6dfb\u52a0\u7d04\u675f\uff08\u5982\u4e3b\u9375\u3001\u5916\u9375\u7b49\uff09\uff0c\u5247\u9700\u8981\u984d\u5916\u7684\u6b65\u9a5f\u3002\u9996\u5148\uff0c\u4f7f\u7528\u4e0a\u8ff0\u65b9\u6cd5\u5275\u5efa\u65b0\u8868\uff0c\u7136\u5f8c\u4f7f\u7528 <code>ALTER TABLE<\/code> \u8a9e\u53e5\u4f86\u6dfb\u52a0\u7d04\u675f\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>ALTER TABLE Employees_Copy\nADD CONSTRAINT PK_Employees_Copy PRIMARY KEY (EmployeeID);<\/code><\/pre>\n<p>\u9019\u6a23\u5c31\u53ef\u4ee5\u5728\u65b0\u8868\u4e2d\u6dfb\u52a0\u4e3b\u9375\u7d04\u675f\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-ElPCCcfjtW\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528MSSQL\u62f7\u8c9d\u8868\u7d50\u69cb\u6642\uff0c\u9700\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u62f7\u8c9d\u7684\u8868\u7d50\u69cb\u4e0d\u6703\u5305\u542b\u7d22\u5f15\u3001\u89f8\u767c\u5668\u6216\u9810\u8a2d\u503c\u3002<\/li>\n<li>\u5982\u679c\u539f\u8868\u4e2d\u6709\u81ea\u589e\u6b04\u4f4d\uff0c\u5247\u65b0\u8868\u4e2d\u7684\u8a72\u6b04\u4f4d\u4e0d\u6703\u81ea\u52d5\u8a2d\u7f6e\u70ba\u81ea\u589e\u3002<\/li>\n<li>\u5728\u9032\u884c\u5927\u898f\u6a21\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0c\u5efa\u8b70\u5728\u975e\u9ad8\u5cf0\u6642\u6bb5\u9032\u884c\uff0c\u4ee5\u907f\u514d\u5f71\u97ff\u7cfb\u7d71\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-ElPCCcfjtW\">\u7e3d\u7d50<\/h2>\n<p>\u4f7f\u7528MSSQL\u62f7\u8c9d\u8868\u7d50\u69cb\u662f\u4e00\u500b\u9ad8\u6548\u7684\u6578\u64da\u5eab\u7ba1\u7406\u6280\u5de7\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5feb\u901f\u5275\u5efa\u65b0\u8868\u4e26\u4fdd\u6301\u7d50\u69cb\u4e00\u81f4\u6027\u3002\u901a\u904e\u7c21\u55ae\u7684SQL\u8a9e\u53e5\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5730\u5b8c\u6210\u9019\u4e00\u64cd\u4f5c\uff0c\u4e26\u5728\u9700\u8981\u6642\u6dfb\u52a0\u7d04\u675f\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\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<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5feb\u901f\u5b78\u7fd2\u5982\u4f55\u5728MSSQL\u4e2d\u62f7\u8c9d\u8868\u7d50\u69cb\uff0c\u5be6\u73fe\u9ad8\u6548\u5275\u5efa\u65b0\u8868\uff0c\u7c21\u5316\u6578\u64da\u5eab\u7ba1\u7406\u6d41\u7a0b\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-64819","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/64819","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=64819"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/64819\/revisions"}],"predecessor-version":[{"id":64820,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/64819\/revisions\/64820"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=64819"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=64819"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=64819"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}