{"id":95230,"date":"2024-10-19T23:19:16","date_gmt":"2024-10-19T15:19:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95230\/"},"modified":"2024-10-19T23:19:17","modified_gmt":"2024-10-19T15:19:17","slug":"oracle%e8%81%9a%e7%b0%87%e7%b4%a2%e5%bc%95%e7%9a%84%e4%bd%bf%e7%94%a8%e6%96%b9%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95230\/","title":{"rendered":"Oracle\u805a\u7c07\u7d22\u5f15\u7684\u4f7f\u7528\u65b9\u5f0f"},"content":{"rendered":"<h1 id=\"oracle%e8%81%9a%e7%b0%87%e7%b4%a2%e5%bc%95%e7%9a%84%e4%bd%bf%e7%94%a8%e6%96%b9%e5%bc%8f-GDtIgPrsED\">Oracle\u805a\u7c07\u7d22\u5f15\u7684\u4f7f\u7528\u65b9\u5f0f<\/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\u3002Oracle\u8cc7\u6599\u5eab\u63d0\u4f9b\u4e86\u591a\u7a2e\u7d22\u5f15\u985e\u578b\uff0c\u5176\u4e2d\u805a\u7c07\u7d22\u5f15\uff08Clustered Index\uff09\u662f\u4e00\u7a2e\u7279\u5225\u7684\u7d22\u5f15\u5f62\u5f0f\u3002\u672c\u6587\u5c07\u63a2\u8a0eOracle\u805a\u7c07\u7d22\u5f15\u7684\u4f7f\u7528\u65b9\u5f0f\u53ca\u5176\u512a\u7f3a\u9ede\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e8%81%9a%e7%b0%87%e7%b4%a2%e5%bc%95%ef%bc%9f-GDtIgPrsED\">\u4ec0\u9ebc\u662f\u805a\u7c07\u7d22\u5f15\uff1f<\/h2>\n<p>\u805a\u7c07\u7d22\u5f15\u662f\u4e00\u7a2e\u5c07\u6578\u64da\u884c\u7684\u7269\u7406\u9806\u5e8f\u8207\u7d22\u5f15\u7684\u908f\u8f2f\u9806\u5e8f\u76f8\u7d50\u5408\u7684\u7d22\u5f15\u985e\u578b\u3002\u5728Oracle\u4e2d\uff0c\u805a\u7c07\u7d22\u5f15\u6703\u5c07\u8868\u4e2d\u7684\u6578\u64da\u884c\u6309\u7167\u7d22\u5f15\u9375\u7684\u9806\u5e8f\u5b58\u5132\uff0c\u9019\u610f\u5473\u8457\u6578\u64da\u884c\u7684\u5be6\u969b\u5b58\u5132\u4f4d\u7f6e\u6703\u6839\u64da\u7d22\u5f15\u7684\u9806\u5e8f\u9032\u884c\u6392\u5217\u3002\u9019\u7a2e\u65b9\u5f0f\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u57fa\u65bc\u7d22\u5f15\u9375\u7684\u67e5\u8a62\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%89%b5%e5%bb%ba%e8%81%9a%e7%b0%87%e7%b4%a2%e5%bc%95-GDtIgPrsED\">\u5982\u4f55\u5275\u5efa\u805a\u7c07\u7d22\u5f15<\/h2>\n<p>\u5728Oracle\u4e2d\uff0c\u5275\u5efa\u805a\u7c07\u7d22\u5f15\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>CREATE INDEX index_name ON table_name (column1, column2, ...);\n<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba\u201cemployees\u201d\u7684\u8868\uff0c\u6211\u5011\u5e0c\u671b\u6839\u64da\u201cdepartment_id\u201d\u5217\u5275\u5efa\u4e00\u500b\u805a\u7c07\u7d22\u5f15\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\uff1a<\/p>\n<pre><code>CREATE INDEX idx_department ON employees (department_id);\n<\/code><\/pre>\n<h2 id=\"%e8%81%9a%e7%b0%87%e7%b4%a2%e5%bc%95%e7%9a%84%e5%84%aa%e9%bb%9e-GDtIgPrsED\">\u805a\u7c07\u7d22\u5f15\u7684\u512a\u9ede<\/h2>\n<ul>\n<li><strong>\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff1a<\/strong>\u7531\u65bc\u6578\u64da\u884c\u7684\u7269\u7406\u9806\u5e8f\u8207\u7d22\u5f15\u7684\u908f\u8f2f\u9806\u5e8f\u76f8\u540c\uff0c\u57fa\u65bc\u805a\u7c07\u7d22\u5f15\u7684\u67e5\u8a62\u901a\u5e38\u6bd4\u975e\u805a\u7c07\u7d22\u5f15\u66f4\u5feb\u3002<\/li>\n<li><strong>\u7bc0\u7701\u7a7a\u9593\uff1a<\/strong>\u805a\u7c07\u7d22\u5f15\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u7684\u5b58\u5132\u7a7a\u9593\uff0c\u56e0\u70ba\u5b83\u5011\u5c07\u6578\u64da\u884c\u5b58\u5132\u5728\u4e00\u8d77\uff0c\u6e1b\u5c11\u4e86\u78c1\u789f\u7684\u788e\u7247\u3002<\/li>\n<li><strong>\u63d0\u9ad8\u7bc4\u570d\u67e5\u8a62\u6027\u80fd\uff1a<\/strong>\u5c0d\u65bc\u7bc4\u570d\u67e5\u8a62\uff0c\u805a\u7c07\u7d22\u5f15\u80fd\u5920\u66f4\u5feb\u5730\u6aa2\u7d22\u9023\u7e8c\u7684\u6578\u64da\u884c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%81%9a%e7%b0%87%e7%b4%a2%e5%bc%95%e7%9a%84%e7%bc%ba%e9%bb%9e-GDtIgPrsED\">\u805a\u7c07\u7d22\u5f15\u7684\u7f3a\u9ede<\/h2>\n<ul>\n<li><strong>\u63d2\u5165\u6027\u80fd\u4e0b\u964d\uff1a<\/strong>\u7531\u65bc\u6578\u64da\u884c\u7684\u7269\u7406\u9806\u5e8f\u5fc5\u9808\u4fdd\u6301\u4e00\u81f4\uff0c\u63d2\u5165\u65b0\u6578\u64da\u6642\u53ef\u80fd\u9700\u8981\u79fb\u52d5\u73fe\u6709\u6578\u64da\uff0c\u9019\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n<li><strong>\u66f4\u65b0\u6027\u80fd\u5f71\u97ff\uff1a<\/strong>\u5982\u679c\u66f4\u65b0\u64cd\u4f5c\u6d89\u53ca\u5230\u7d22\u5f15\u9375\uff0c\u5247\u53ef\u80fd\u9700\u8981\u91cd\u65b0\u6392\u5217\u6578\u64da\u884c\uff0c\u9019\u6703\u5f71\u97ff\u6027\u80fd\u3002<\/li>\n<li><strong>\u9650\u5236\u6027\uff1a<\/strong>\u6bcf\u500b\u8868\u53ea\u80fd\u6709\u4e00\u500b\u805a\u7c07\u7d22\u5f15\uff0c\u9019\u53ef\u80fd\u6703\u9650\u5236\u67d0\u4e9b\u61c9\u7528\u5834\u666f\u7684\u9748\u6d3b\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e8%81%9a%e7%b0%87%e7%b4%a2%e5%bc%95%e7%9a%84%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-GDtIgPrsED\">\u4f7f\u7528\u805a\u7c07\u7d22\u5f15\u7684\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u5728\u4f7f\u7528\u805a\u7c07\u7d22\u5f15\u6642\uff0c\u5efa\u8b70\u9075\u5faa\u4ee5\u4e0b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li><strong>\u9078\u64c7\u5408\u9069\u7684\u7d22\u5f15\u9375\uff1a<\/strong>\u9078\u64c7\u7d93\u5e38\u7528\u65bc\u67e5\u8a62\u7684\u5217\u4f5c\u70ba\u7d22\u5f15\u9375\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<li><strong>\u907f\u514d\u983b\u7e41\u66f4\u65b0\u7684\u5217\uff1a<\/strong>\u907f\u514d\u5c07\u7d93\u5e38\u66f4\u65b0\u7684\u5217\u4f5c\u70ba\u805a\u7c07\u7d22\u5f15\u7684\u9375\uff0c\u4ee5\u6e1b\u5c11\u6027\u80fd\u5f71\u97ff\u3002<\/li>\n<li><strong>\u5b9a\u671f\u76e3\u63a7\u6027\u80fd\uff1a<\/strong>\u5b9a\u671f\u6aa2\u67e5\u805a\u7c07\u7d22\u5f15\u7684\u6027\u80fd\uff0c\u6839\u64da\u9700\u8981\u9032\u884c\u8abf\u6574\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-GDtIgPrsED\">\u7e3d\u7d50<\/h2>\n<p>\u805a\u7c07\u7d22\u5f15\u5728Oracle\u8cc7\u6599\u5eab\u4e2d\u662f\u4e00\u7a2e\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u7136\u800c\uff0c\u4f7f\u7528\u6642\u9700\u8b39\u614e\u8003\u616e\u5176\u512a\u7f3a\u9ede\uff0c\u4e26\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9032\u884c\u8a2d\u8a08\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u67e5\u8a62\u7684\u61c9\u7528\u5834\u666f\uff0c\u805a\u7c07\u7d22\u5f15\u7121\u7591\u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u9078\u64c7\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/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>\u4e86\u89e3Oracle\u805a\u7c07\u7d22\u5f15\u7684\u4f7f\u7528\u65b9\u5f0f\uff0c\u63d0\u5347\u67e5\u8be2\u6027\u80fd\uff0c\u4f18\u5316\u6570\u636e\u5b58\u50a8\uff0c\u51cf\u5c11I\/O\u64cd\u4f5c\uff0c\u589e\u5f3a\u6570\u636e\u5e93\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-95230","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95230","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=95230"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95230\/revisions"}],"predecessor-version":[{"id":95231,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95230\/revisions\/95231"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95230"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95230"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95230"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}