{"id":141877,"date":"2024-10-31T22:09:57","date_gmt":"2024-10-31T14:09:57","guid":{"rendered":"https:\/\/server.hk\/cnblog\/141877\/"},"modified":"2024-10-31T22:09:57","modified_gmt":"2024-10-31T14:09:57","slug":"sql-server-%e7%b4%a2%e5%bc%95%e4%b9%8b%e8%81%9a%e7%b0%87%e7%b4%a2%e5%bc%95%e5%92%8c%e9%9d%9e%e8%81%9a%e7%b0%87%e7%b4%a2%e5%bc%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/141877\/","title":{"rendered":"SQL Server \u7d22\u5f15\u4e4b\u805a\u7c07\u7d22\u5f15\u548c\u975e\u805a\u7c07\u7d22\u5f15"},"content":{"rendered":"<h1 id=\"sql-server-%e7%b4%a2%e5%bc%95%e4%b9%8b%e8%81%9a%e7%b0%87%e7%b4%a2%e5%bc%95%e5%92%8c%e9%9d%9e%e8%81%9a%e7%b0%87%e7%b4%a2%e5%bc%95-VoBdLyxdXA\">SQL Server \u7d22\u5f15\u4e4b\u805a\u7c07\u7d22\u5f15\u548c\u975e\u805a\u7c07\u7d22\u5f15<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u7d22\u5f15\u662f\u4e00\u7a2e\u91cd\u8981\u7684\u6578\u64da\u7d50\u69cb\uff0c\u7528\u65bc\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002SQL Server \u63d0\u4f9b\u4e86\u5169\u7a2e\u4e3b\u8981\u7684\u7d22\u5f15\u985e\u578b\uff1a\u805a\u7c07\u7d22\u5f15\uff08Clustered Index\uff09\u548c\u975e\u805a\u7c07\u7d22\u5f15\uff08Non-Clustered Index\uff09\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u5169\u7a2e\u7d22\u5f15\u7684\u7279\u9ede\u3001\u512a\u7f3a\u9ede\u53ca\u5176\u4f7f\u7528\u5834\u666f\u3002<\/p>\n<h2 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id=\"%e5%84%aa%e7%bc%ba%e9%bb%9e-VoBdLyxdXA\">\u512a\u7f3a\u9ede<\/h3>\n<p><strong>\u512a\u9ede\uff1a<\/strong><\/p>\n<ul>\n<li>\u63d0\u9ad8\u7bc4\u570d\u67e5\u8a62\u7684\u6027\u80fd\uff0c\u56e0\u70ba\u6578\u64da\u662f\u9023\u7e8c\u5b58\u5132\u7684\u3002<\/li>\n<li>\u6e1b\u5c11\u67e5\u8a62\u6642\u7684 I\/O \u64cd\u4f5c\uff0c\u56e0\u70ba\u6578\u64da\u884c\u548c\u7d22\u5f15\u5728\u540c\u4e00\u4f4d\u7f6e\u3002<\/li>\n<\/ul>\n<p><strong>\u7f3a\u9ede\uff1a<\/strong><\/p>\n<ul>\n<li>\u63d2\u5165\u3001\u66f4\u65b0\u548c\u522a\u9664\u64cd\u4f5c\u53ef\u80fd\u6703\u8b8a\u6162\uff0c\u56e0\u70ba\u9700\u8981\u7dad\u8b77\u6578\u64da\u7684\u7269\u7406\u9806\u5e8f\u3002<\/li>\n<li>\u5982\u679c\u805a\u7c07\u7d22\u5f15\u7684\u9375\u503c\u8b8a\u66f4\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6574\u500b\u6578\u64da\u884c\u7684\u79fb\u52d5\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%9d%9e%e8%81%9a%e7%b0%87%e7%b4%a2%e5%bc%95-VoBdLyxdXA\">\u975e\u805a\u7c07\u7d22\u5f15<\/h2>\n<p>\u975e\u805a\u7c07\u7d22\u5f15\u5247\u662f\u5c07\u7d22\u5f15\u7684\u908f\u8f2f\u9806\u5e8f\u8207\u6578\u64da\u884c\u7684\u7269\u7406\u9806\u5e8f\u5206\u958b\u3002\u9019\u610f\u5473\u8457\uff0c\u6578\u64da\u884c\u53ef\u4ee5\u4ee5\u4e0d\u540c\u7684\u9806\u5e8f\u5b58\u5132\uff0c\u800c\u975e\u805a\u7c07\u7d22\u5f15\u5247\u5305\u542b\u6307\u5411\u6578\u64da\u884c\u7684\u6307\u91dd\u3002\u6bcf\u500b\u8868\u53ef\u4ee5\u6709\u591a\u500b\u975e\u805a\u7c07\u7d22\u5f15\u3002<\/p>\n<h3 id=\"%e7%89%b9%e9%bb%9e-VoBdLyxdXA\">\u7279\u9ede<\/h3>\n<ul>\n<li>\u6578\u64da\u884c\u7684\u7269\u7406\u9806\u5e8f\u8207\u7d22\u5f15\u9806\u5e8f\u7121\u95dc\u3002<\/li>\n<li>\u6bcf\u500b\u8868\u53ef\u4ee5\u6709\u591a\u500b\u975e\u805a\u7c07\u7d22\u5f15\u3002<\/li>\n<li>\u975e\u805a\u7c07\u7d22\u5f15\u5305\u542b\u6307\u5411\u6578\u64da\u884c\u7684\u6307\u91dd\u3002<\/li>\n<\/ul>\n<h3 id=\"%e5%84%aa%e7%bc%ba%e9%bb%9e-VoBdLyxdXA\">\u512a\u7f3a\u9ede<\/h3>\n<p><strong>\u512a\u9ede\uff1a<\/strong><\/p>\n<ul>\n<li>\u652f\u6301\u591a\u500b\u7d22\u5f15\uff0c\u9069\u5408\u591a\u7a2e\u67e5\u8a62\u9700\u6c42\u3002<\/li>\n<li>\u5c0d\u65bc\u67e5\u8a62\u6027\u80fd\u7684\u63d0\u5347\uff0c\u7279\u5225\u662f\u5c0d\u65bc\u975e\u7bc4\u570d\u67e5\u8a62\u3002<\/li>\n<\/ul>\n<p><strong>\u7f3a\u9ede\uff1a<\/strong><\/p>\n<ul>\n<li>\u67e5\u8a62\u6642\u9700\u8981\u984d\u5916\u7684 I\/O \u64cd\u4f5c\u4f86\u8a2a\u554f\u6578\u64da\u884c\u3002<\/li>\n<li>\u7dad\u8b77\u6210\u672c\u8f03\u9ad8\uff0c\u56e0\u70ba\u6bcf\u6b21\u63d2\u5165\u3001\u66f4\u65b0\u6216\u522a\u9664\u90fd\u9700\u8981\u66f4\u65b0\u6240\u6709\u76f8\u95dc\u7684\u975e\u805a\u7c07\u7d22\u5f15\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e5%a0%b4%e6%99%af-VoBdLyxdXA\">\u4f7f\u7528\u5834\u666f<\/h2>\n<p>\u5728\u9078\u64c7\u4f7f\u7528\u805a\u7c07\u7d22\u5f15\u6216\u975e\u805a\u7c07\u7d22\u5f15\u6642\uff0c\u61c9\u6839\u64da\u5177\u9ad4\u7684\u67e5\u8a62\u9700\u6c42\u548c\u6578\u64da\u7279\u6027\u4f86\u6c7a\u5b9a\u3002\u4e00\u822c\u4f86\u8aaa\uff0c\u805a\u7c07\u7d22\u5f15\u9069\u5408\u7528\u65bc\u9700\u8981\u983b\u7e41\u9032\u884c\u7bc4\u570d\u67e5\u8a62\u7684\u5834\u666f\uff0c\u800c\u975e\u805a\u7c07\u7d22\u5f15\u5247\u9069\u5408\u7528\u65bc\u9700\u8981\u5feb\u901f\u67e5\u627e\u7279\u5b9a\u503c\u7684\u5834\u666f\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b-VoBdLyxdXA\">\u793a\u4f8b<\/h3>\n<pre><code>-- \u5275\u5efa\u805a\u7c07\u7d22\u5f15\nCREATE CLUSTERED INDEX idx_Clustered ON Employees(EmployeeID);\n\n-- \u5275\u5efa\u975e\u805a\u7c07\u7d22\u5f15\nCREATE NONCLUSTERED INDEX idx_NonClustered ON Employees(LastName);\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-VoBdLyxdXA\">\u7e3d\u7d50<\/h2>\n<p>\u805a\u7c07\u7d22\u5f15\u548c\u975e\u805a\u7c07\u7d22\u5f15\u5404\u6709\u5176\u7279\u9ede\u548c\u9069\u7528\u5834\u666f\u3002\u5728\u8a2d\u8a08\u8cc7\u6599\u5eab\u6642\uff0c\u5408\u7406\u9078\u64c7\u7d22\u5f15\u985e\u578b\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u4e86\u89e3\u9019\u4e9b\u7d22\u5f15\u7684\u904b\u4f5c\u65b9\u5f0f\uff0c\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\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\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f\u9700\u8981\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u9084\u662f\u9748\u6d3b\u7684 <a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3SQL Server\u4e2d\u7684\u805a\u7c07\u7d22\u5f15\u548c\u975e\u805a\u7c07\u7d22\u5f15\uff0c\u638c\u63e1\u5176\u7ed3\u6784\u3001\u6027\u80fd\u5dee\u5f02\u53ca\u5e94\u7528\u573a\u666f\uff0c\u4f18\u5316\u6570\u636e\u5e93\u67e5\u8be2\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-141877","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/141877","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=141877"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/141877\/revisions"}],"predecessor-version":[{"id":141878,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/141877\/revisions\/141878"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=141877"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=141877"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=141877"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}