{"id":140220,"date":"2024-10-31T20:25:19","date_gmt":"2024-10-31T12:25:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/140220\/"},"modified":"2024-10-31T20:25:20","modified_gmt":"2024-10-31T12:25:20","slug":"sql-server%e7%b4%a2%e5%bc%95%e8%a8%ad%e8%a8%88%e6%8c%87%e5%8d%97%ef%bc%88index-design-guidelines%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/140220\/","title":{"rendered":"SQL Server\u7d22\u5f15\u8a2d\u8a08\u6307\u5357\uff08Index Design Guidelines\uff09"},"content":{"rendered":"<h1 id=\"sql-server%e7%b4%a2%e5%bc%95%e8%a8%ad%e8%a8%88%e6%8c%87%e5%8d%97-roYUuocRyx\">SQL Server\u7d22\u5f15\u8a2d\u8a08\u6307\u5357<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u7d22\u5f15\u662f\u4e00\u7a2e\u91cd\u8981\u7684\u8cc7\u6599\u7d50\u69cb\uff0c\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u5c0d\u65bc\u4f7f\u7528SQL Server\u7684\u958b\u767c\u8005\u548c\u8cc7\u6599\u5eab\u7ba1\u7406\u54e1\u4f86\u8aaa\uff0c\u6b63\u78ba\u7684\u7d22\u5f15\u8a2d\u8a08\u662f\u78ba\u4fdd\u7cfb\u7d71\u9ad8\u6548\u904b\u884c\u7684\u95dc\u9375\u3002\u672c\u6587\u5c07\u63a2\u8a0eSQL Server\u7684\u7d22\u5f15\u8a2d\u8a08\u539f\u5247\uff0c\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u512a\u5316\u8cc7\u6599\u5eab\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%b4%a2%e5%bc%95%ef%bc%9f-roYUuocRyx\">\u4ec0\u9ebc\u662f\u7d22\u5f15\uff1f<\/h2>\n<p>\u7d22\u5f15\u662f\u4e00\u7a2e\u8cc7\u6599\u7d50\u69cb\uff0c\u80fd\u5920\u52a0\u901f\u8cc7\u6599\u5eab\u67e5\u8a62\u7684\u901f\u5ea6\u3002\u5b83\u985e\u4f3c\u65bc\u66f8\u7c4d\u7684\u76ee\u9304\uff0c\u5e6b\u52a9\u8cc7\u6599\u5eab\u5feb\u901f\u5b9a\u4f4d\u5230\u6240\u9700\u7684\u8cc7\u6599\u3002SQL Server\u652f\u6301\u591a\u7a2e\u7d22\u5f15\u985e\u578b\uff0c\u5305\u62ec\u805a\u96c6\u7d22\u5f15\u3001\u975e\u805a\u96c6\u7d22\u5f15\u3001\u552f\u4e00\u7d22\u5f15\u548c\u5168\u6587\u7d22\u5f15\u7b49\u3002<\/p>\n<h2 id=\"%e7%b4%a2%e5%bc%95%e7%9a%84%e9%a1%9e%e5%9e%8b-roYUuocRyx\">\u7d22\u5f15\u7684\u985e\u578b<\/h2>\n<ul>\n<li><strong>\u805a\u96c6\u7d22\u5f15\uff08Clustered Index\uff09<\/strong>: \u805a\u96c6\u7d22\u5f15\u6c7a\u5b9a\u4e86\u8cc7\u6599\u5728\u78c1\u789f\u4e0a\u7684\u5132\u5b58\u9806\u5e8f\u3002\u6bcf\u500b\u8868\u53ea\u80fd\u6709\u4e00\u500b\u805a\u96c6\u7d22\u5f15\uff0c\u901a\u5e38\u7528\u65bc\u4e3b\u9375\u3002<\/li>\n<li><strong>\u975e\u805a\u96c6\u7d22\u5f15\uff08Non-Clustered Index\uff09<\/strong>: \u975e\u805a\u96c6\u7d22\u5f15\u662f\u7368\u7acb\u65bc\u8cc7\u6599\u7684\u7d50\u69cb\uff0c\u5141\u8a31\u5728\u4e00\u500b\u8868\u4e0a\u5275\u5efa\u591a\u500b\u975e\u805a\u96c6\u7d22\u5f15\u3002\u5b83\u5011\u5305\u542b\u6307\u5411\u8cc7\u6599\u884c\u7684\u6307\u6a19\u3002<\/li>\n<li><strong>\u552f\u4e00\u7d22\u5f15\uff08Unique Index\uff09<\/strong>: \u552f\u4e00\u7d22\u5f15\u78ba\u4fdd\u7d22\u5f15\u5217\u4e2d\u7684\u6240\u6709\u503c\u90fd\u662f\u552f\u4e00\u7684\uff0c\u9019\u5c0d\u65bc\u9632\u6b62\u91cd\u8907\u8cc7\u6599\u975e\u5e38\u6709\u7528\u3002<\/li>\n<li><strong>\u5168\u6587\u7d22\u5f15\uff08Full-Text Index\uff09<\/strong>: \u7528\u65bc\u52a0\u901f\u5c0d\u5927\u91cf\u6587\u672c\u8cc7\u6599\u7684\u67e5\u8a62\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u9032\u884c\u95dc\u9375\u5b57\u641c\u7d22\u6642\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b4%a2%e5%bc%95%e8%a8%ad%e8%a8%88%e5%8e%9f%e5%89%87-roYUuocRyx\">\u7d22\u5f15\u8a2d\u8a08\u539f\u5247<\/h2>\n<h3 id=\"1-%e7%a2%ba%e5%ae%9a%e6%9f%a5%e8%a9%a2%e6%a8%a1%e5%bc%8f-roYUuocRyx\">1. \u78ba\u5b9a\u67e5\u8a62\u6a21\u5f0f<\/h3>\n<p>\u5728\u8a2d\u8a08\u7d22\u5f15\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u5206\u6790\u61c9\u7528\u7a0b\u5f0f\u7684\u67e5\u8a62\u6a21\u5f0f\u3002\u4e86\u89e3\u54ea\u4e9b\u67e5\u8a62\u6700\u5e38\u57f7\u884c\uff0c\u4e26\u78ba\u5b9a\u5b83\u5011\u7684\u7be9\u9078\u689d\u4ef6\u548c\u6392\u5e8f\u9700\u6c42\u3002\u9019\u5c07\u5e6b\u52a9\u60a8\u9078\u64c7\u5408\u9069\u7684\u7d22\u5f15\u985e\u578b\u548c\u5217\u3002<\/p>\n<h3 id=\"2-%e9%81%a9%e7%95%b6%e9%81%b8%e6%93%87%e7%b4%a2%e5%bc%95%e5%88%97-roYUuocRyx\">2. \u9069\u7576\u9078\u64c7\u7d22\u5f15\u5217<\/h3>\n<p>\u9078\u64c7\u7d22\u5f15\u5217\u6642\uff0c\u61c9\u8003\u616e\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u9078\u64c7\u9ad8\u9078\u64c7\u6027\u7684\u5217\uff1a\u9ad8\u9078\u64c7\u6027\u610f\u5473\u8457\u8a72\u5217\u7684\u503c\u80fd\u5920\u552f\u4e00\u6a19\u8b58\u5927\u591a\u6578\u884c\u3002<\/li>\n<li>\u907f\u514d\u5728\u4f4e\u9078\u64c7\u6027\u5217\u4e0a\u5275\u5efa\u7d22\u5f15\uff1a\u4f8b\u5982\uff0c\u6027\u5225\u6216\u570b\u5bb6\u7b49\u5217\u901a\u5e38\u4e0d\u9069\u5408\u7d22\u5f15\u3002<\/li>\n<li>\u8003\u616e\u67e5\u8a62\u4e2d\u7684\u7be9\u9078\u689d\u4ef6\u548c\u6392\u5e8f\u9700\u6c42\uff0c\u5c07\u9019\u4e9b\u5217\u7d0d\u5165\u7d22\u5f15\u3002<\/li>\n<\/ul>\n<h3 id=\"3-%e6%8e%a7%e5%88%b6%e7%b4%a2%e5%bc%95%e6%95%b8%e9%87%8f-roYUuocRyx\">3. \u63a7\u5236\u7d22\u5f15\u6578\u91cf<\/h3>\n<p>\u96d6\u7136\u7d22\u5f15\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u4f46\u904e\u591a\u7684\u7d22\u5f15\u6703\u5f71\u97ff\u8cc7\u6599\u5beb\u5165\u6027\u80fd\uff0c\u56e0\u70ba\u6bcf\u6b21\u63d2\u5165\u3001\u66f4\u65b0\u6216\u522a\u9664\u64cd\u4f5c\u90fd\u9700\u8981\u66f4\u65b0\u7d22\u5f15\u3002\u56e0\u6b64\uff0c\u61c9\u8a72\u6839\u64da\u5be6\u969b\u9700\u6c42\u63a7\u5236\u7d22\u5f15\u7684\u6578\u91cf\u3002<\/p>\n<h3 id=\"4-%e5%ae%9a%e6%9c%9f%e7%b6%ad%e8%ad%b7%e7%b4%a2%e5%bc%95-roYUuocRyx\">4. \u5b9a\u671f\u7dad\u8b77\u7d22\u5f15<\/h3>\n<p>\u96a8\u8457\u8cc7\u6599\u7684\u589e\u9577\u548c\u8b8a\u5316\uff0c\u7d22\u5f15\u53ef\u80fd\u6703\u8b8a\u5f97\u4e0d\u518d\u9ad8\u6548\u3002\u5b9a\u671f\u9032\u884c\u7d22\u5f15\u91cd\u5efa\u548c\u91cd\u7d44\u53ef\u4ee5\u5e6b\u52a9\u7dad\u6301\u7d22\u5f15\u7684\u6027\u80fd\u3002SQL Server\u63d0\u4f9b\u4e86\u591a\u7a2e\u5de5\u5177\u4f86\u9032\u884c\u9019\u4e9b\u64cd\u4f5c\uff0c\u4f8b\u5982\u4f7f\u7528SQL Server Management Studio\u6216T-SQL\u547d\u4ee4\u3002<\/p>\n<h2 id=\"%e7%af%84%e4%be%8b%ef%bc%9a%e5%89%b5%e5%bb%ba%e7%b4%a2%e5%bc%95-roYUuocRyx\">\u7bc4\u4f8b\uff1a\u5275\u5efa\u7d22\u5f15<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728SQL Server\u4e2d\u5275\u5efa\u975e\u805a\u96c6\u7d22\u5f15\uff1a<\/p>\n<pre><code>CREATE NONCLUSTERED INDEX IX_Employee_LastName\nON Employees (LastName);<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u5c07\u5728Employees\u8868\u7684LastName\u5217\u4e0a\u5275\u5efa\u4e00\u500b\u975e\u805a\u96c6\u7d22\u5f15\uff0c\u5f9e\u800c\u52a0\u901f\u57fa\u65bcLastName\u7684\u67e5\u8a62\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-roYUuocRyx\">\u7e3d\u7d50<\/h2>\n<p>\u7d22\u5f15\u8a2d\u8a08\u662fSQL Server\u6027\u80fd\u512a\u5316\u7684\u91cd\u8981\u7d44\u6210\u90e8\u5206\u3002\u901a\u904e\u4e86\u89e3\u4e0d\u540c\u985e\u578b\u7684\u7d22\u5f15\u3001\u67e5\u8a62\u6a21\u5f0f\u4ee5\u53ca\u7dad\u8b77\u7b56\u7565\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8\u8cc7\u6599\u5eab\u7684\u67e5\u8a62\u6548\u7387\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u7684\u61c9\u7528\u7a0b\u5f0f\uff0c\u9078\u64c7\u5408\u9069\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u5e0c\u671b\u9019\u4e9b\u6307\u5c0e\u539f\u5247\u80fd\u5e6b\u52a9\u60a8\u5728SQL Server\u4e2d\u8a2d\u8a08\u51fa\u66f4\u512a\u5316\u7684\u7d22\u5f15\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1SQL Server\u7d22\u5f15\u8a2d\u8a08\u6307\u5357\uff0c\u63d0\u5347\u67e5\u8a62\u6027\u80fd\uff0c\u512a\u5316\u6578\u64da\u5eab\u6548\u7387\uff0c\u78ba\u4fdd\u6578\u64da\u5b58\u53d6\u5feb\u901f\u4e14\u6e96\u78ba\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-140220","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/140220","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=140220"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/140220\/revisions"}],"predecessor-version":[{"id":140221,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/140220\/revisions\/140221"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=140220"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=140220"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=140220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}