{"id":66387,"date":"2024-10-14T17:05:15","date_gmt":"2024-10-14T09:05:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/66387\/"},"modified":"2024-10-14T17:05:15","modified_gmt":"2024-10-14T09:05:15","slug":"mssql%e4%b8%ad%e5%ad%97%e6%ae%b5%e6%98%af%e8%87%b3%e9%97%9c%e9%87%8d%e8%a6%81%e7%9a%84%e9%97%9c%e9%8d%b5%e5%ad%97%ef%bc%88mssql%e5%ad%97%e6%ae%b5%e6%98%af%e9%97%9c%e9%8d%b5%e5%ad%97%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/66387\/","title":{"rendered":"MSSQL\u4e2d\u5b57\u6bb5\u662f\u81f3\u95dc\u91cd\u8981\u7684\u95dc\u9375\u5b57\uff08mssql\u5b57\u6bb5\u662f\u95dc\u9375\u5b57\uff09"},"content":{"rendered":"<h1 id=\"mssql%e4%b8%ad%e5%ad%97%e6%ae%b5%e6%98%af%e8%87%b3%e9%97%9c%e9%87%8d%e8%a6%81%e7%9a%84%e9%97%9c%e9%8d%b5%e5%ad%97-anQRgcpnoO\">MSSQL\u4e2d\u5b57\u6bb5\u662f\u81f3\u95dc\u91cd\u8981\u7684\u95dc\u9375\u5b57<\/h1>\n<p>\u5728\u4f7f\u7528Microsoft SQL Server\uff08MSSQL\uff09\u9032\u884c\u6578\u64da\u5eab\u7ba1\u7406\u6642\uff0c\u4e86\u89e3\u5b57\u6bb5\u7684\u95dc\u9375\u5b57\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u9019\u4e9b\u95dc\u9375\u5b57\u4e0d\u50c5\u5f71\u97ff\u6578\u64da\u7684\u5b58\u5132\u548c\u6aa2\u7d22\uff0c\u9084\u5f71\u97ff\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u5b89\u5168\u6027\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eMSSQL\u4e2d\u5b57\u6bb5\u7684\u95dc\u9375\u5b57\u53ca\u5176\u91cd\u8981\u6027\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afmssql%e5%ad%97%e6%ae%b5%e7%9a%84%e9%97%9c%e9%8d%b5%e5%ad%97%ef%bc%9f-anQRgcpnoO\">\u4ec0\u9ebc\u662fMSSQL\u5b57\u6bb5\u7684\u95dc\u9375\u5b57\uff1f<\/h2>\n<p>\u5728MSSQL\u4e2d\uff0c\u5b57\u6bb5\u662f\u6578\u64da\u8868\u4e2d\u7684\u4e00\u500b\u5217\uff0c\u6bcf\u500b\u5b57\u6bb5\u90fd\u6709\u5176\u7279\u5b9a\u7684\u6578\u64da\u985e\u578b\u548c\u5c6c\u6027\u3002\u95dc\u9375\u5b57\u5247\u662f\u7528\u65bc\u5b9a\u7fa9\u9019\u4e9b\u5b57\u6bb5\u7684\u7279\u6027\u548c\u884c\u70ba\u7684\u7279\u6b8a\u8a5e\u5f59\u3002\u4f8b\u5982\uff0c<code>PRIMARY KEY<\/code>\u3001<code>FOREIGN KEY<\/code>\u3001<code>UNIQUE<\/code>\u7b49\u90fd\u662f\u7528\u4f86\u5b9a\u7fa9\u5b57\u6bb5\u7684\u95dc\u9375\u5b57\u3002<\/p>\n<h2 id=\"%e5%b8%b8%e8%a6%8b%e7%9a%84mssql%e5%ad%97%e6%ae%b5%e9%97%9c%e9%8d%b5%e5%ad%97-anQRgcpnoO\">\u5e38\u898b\u7684MSSQL\u5b57\u6bb5\u95dc\u9375\u5b57<\/h2>\n<ul>\n<li><strong>PRIMARY KEY<\/strong>: \u7528\u65bc\u552f\u4e00\u6a19\u8b58\u6578\u64da\u8868\u4e2d\u7684\u6bcf\u4e00\u884c\u3002\u6bcf\u500b\u6578\u64da\u8868\u53ea\u80fd\u6709\u4e00\u500b\u4e3b\u9375\uff0c\u4e14\u4e3b\u9375\u5b57\u6bb5\u7684\u503c\u4e0d\u80fd\u70ba\u7a7a\u3002<\/li>\n<li><strong>FOREIGN KEY<\/strong>: \u7528\u65bc\u5efa\u7acb\u5169\u500b\u6578\u64da\u8868\u4e4b\u9593\u7684\u95dc\u806f\u3002\u5916\u9375\u5b57\u6bb5\u7684\u503c\u5fc5\u9808\u5b58\u5728\u65bc\u53e6\u4e00\u500b\u8868\u7684\u4e3b\u9375\u4e2d\u3002<\/li>\n<li><strong>UNIQUE<\/strong>: \u78ba\u4fdd\u5b57\u6bb5\u4e2d\u7684\u6240\u6709\u503c\u90fd\u662f\u552f\u4e00\u7684\uff0c\u9019\u610f\u5473\u8457\u4e0d\u5141\u8a31\u91cd\u8907\u7684\u6578\u64da\u3002<\/li>\n<li><strong>NOT NULL<\/strong>: \u6307\u5b9a\u5b57\u6bb5\u4e0d\u80fd\u70ba\u7a7a\uff0c\u9019\u5c0d\u65bc\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\u81f3\u95dc\u91cd\u8981\u3002<\/li>\n<li><strong>DEFAULT<\/strong>: \u7528\u65bc\u8a2d\u7f6e\u5b57\u6bb5\u7684\u9ed8\u8a8d\u503c\uff0c\u7576\u63d2\u5165\u6578\u64da\u6642\u5982\u679c\u672a\u63d0\u4f9b\u8a72\u5b57\u6bb5\u7684\u503c\uff0c\u5247\u4f7f\u7528\u9ed8\u8a8d\u503c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%ad%97%e6%ae%b5%e9%97%9c%e9%8d%b5%e5%ad%97%e7%9a%84%e9%87%8d%e8%a6%81%e6%80%a7-anQRgcpnoO\">\u5b57\u6bb5\u95dc\u9375\u5b57\u7684\u91cd\u8981\u6027<\/h2>\n<p>\u5b57\u6bb5\u7684\u95dc\u9375\u5b57\u5728\u6578\u64da\u5eab\u8a2d\u8a08\u4e2d\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\u3002\u4ee5\u4e0b\u662f\u5e7e\u500b\u95dc\u9375\u9ede\uff1a<\/p>\n<h3 id=\"1-%e6%95%b8%e6%93%9a%e5%ae%8c%e6%95%b4%e6%80%a7-anQRgcpnoO\">1. \u6578\u64da\u5b8c\u6574\u6027<\/h3>\n<p>\u4f7f\u7528<code>PRIMARY KEY<\/code>\u548c<code>FOREIGN KEY<\/code>\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u3002\u4e3b\u9375\u4fdd\u8b49\u4e86\u6bcf\u4e00\u884c\u7684\u552f\u4e00\u6027\uff0c\u800c\u5916\u9375\u5247\u78ba\u4fdd\u4e86\u6578\u64da\u4e4b\u9593\u7684\u95dc\u806f\u6027\uff0c\u9632\u6b62\u5b64\u7acb\u7684\u6578\u64da\u51fa\u73fe\u3002<\/p>\n<h3 id=\"2-%e6%95%88%e7%8e%87%e6%8f%90%e5%8d%87-anQRgcpnoO\">2. \u6548\u7387\u63d0\u5347<\/h3>\n<p>\u901a\u904e\u4f7f\u7528<code>UNIQUE<\/code>\u548c<code>INDEX<\/code>\u95dc\u9375\u5b57\uff0c\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u7684\u6548\u7387\u3002\u9019\u4e9b\u95dc\u9375\u5b57\u5e6b\u52a9\u6578\u64da\u5eab\u5f15\u64ce\u5feb\u901f\u5b9a\u4f4d\u6578\u64da\uff0c\u5f9e\u800c\u6e1b\u5c11\u67e5\u8a62\u6642\u9593\u3002<\/p>\n<h3 id=\"3-%e6%95%b8%e6%93%9a%e5%ae%89%e5%85%a8%e6%80%a7-anQRgcpnoO\">3. \u6578\u64da\u5b89\u5168\u6027<\/h3>\n<p>\u4f7f\u7528<code>NOT NULL<\/code>\u53ef\u4ee5\u9632\u6b62\u4e0d\u5b8c\u6574\u6578\u64da\u7684\u63d2\u5165\uff0c\u9019\u5c0d\u65bc\u4fdd\u6301\u6578\u64da\u7684\u6e96\u78ba\u6027\u548c\u53ef\u9760\u6027\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-anQRgcpnoO\">\u793a\u4f8b\u4ee3\u78bc<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684MSSQL\u8868\u5275\u5efa\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528\u9019\u4e9b\u95dc\u9375\u5b57\uff1a<\/p>\n<pre><code>\nCREATE TABLE Employees (\n    EmployeeID INT PRIMARY KEY,\n    FirstName NVARCHAR(50) NOT NULL,\n    LastName NVARCHAR(50) NOT NULL,\n    Email NVARCHAR(100) UNIQUE,\n    DepartmentID INT,\n    FOREIGN KEY (DepartmentID) REFERENCES Departments(DepartmentID)\n);\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c<code>EmployeeID<\/code>\u662f\u4e3b\u9375\uff0c<code>Email<\/code>\u5b57\u6bb5\u662f\u552f\u4e00\u7684\uff0c\u800c<code>DepartmentID<\/code>\u5247\u662f\u5916\u9375\uff0c\u6307\u5411\u53e6\u4e00\u500b\u8868\u7684\u4e3b\u9375\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-anQRgcpnoO\">\u7e3d\u7d50<\/h2>\n<p>MSSQL\u4e2d\u7684\u5b57\u6bb5\u95dc\u9375\u5b57\u5c0d\u65bc\u6578\u64da\u5eab\u7684\u8a2d\u8a08\u548c\u7ba1\u7406\u81f3\u95dc\u91cd\u8981\u3002\u5b83\u5011\u4e0d\u50c5\u78ba\u4fdd\u4e86\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u5b89\u5168\u6027\uff0c\u9084\u63d0\u9ad8\u4e86\u67e5\u8a62\u7684\u6548\u7387\u3002\u4e86\u89e3\u9019\u4e9b\u95dc\u9375\u5b57\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u8a2d\u8a08\u548c\u7dad\u8b77\u6578\u64da\u5eab\u7cfb\u7d71\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\u7ba1\u7406\u9084\u662f\u7db2\u7ad9\u6258\u7ba1\uff0c\u6211\u5011\u7684\u670d\u52d9\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MSSQL\u4e2d\u5b57\u6bb5\u7684\u91cd\u8981\u6027\uff0c\u638c\u63e1\u5982\u4f55\u6709\u6548\u4f7f\u7528\u95dc\u9375\u5b57\u4ee5\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u548c\u67e5\u8a62\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-66387","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66387","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=66387"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66387\/revisions"}],"predecessor-version":[{"id":66388,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66387\/revisions\/66388"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=66387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=66387"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=66387"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}