{"id":5039,"date":"2024-11-14T12:44:17","date_gmt":"2024-11-14T04:44:17","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5039\/"},"modified":"2024-11-14T12:44:17","modified_gmt":"2024-11-14T04:44:17","slug":"oracle%e6%95%b0%e6%8d%ae%e5%ba%93%e6%80%8e%e4%b9%88%e5%88%9b%e5%bb%ba%e7%b4%a2%e5%bc%95","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5039\/","title":{"rendered":"oracle\u6570\u636e\u5e93\u600e\u4e48\u521b\u5efa\u7d22\u5f15"},"content":{"rendered":"<blockquote><p>\n  \u5728 oracle \u6570\u636e\u5e93\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7 create index \u8bed\u53e5\u521b\u5efa\u7d22\u5f15\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\uff0c\u8be5\u8bed\u53e5\u8981\u6c42\u6307\u5b9a\u7d22\u5f15\u540d\u79f0\u3001\u8868\u540d\u548c\u7d22\u5f15\u5217\u3002oracle \u6570\u636e\u5e93\u652f\u6301 b-\u6811\u3001\u54c8\u5e0c\u3001\u4f4d\u56fe\u548c\u5168\u6587\u7b49\u4e0d\u540c\u7c7b\u578b\u7684\u7d22\u5f15\u3002\u521b\u5efa\u7d22\u5f15\u5e94\u6743\u8861\u5229\u5f0a\uff0c\u5e76\u5173\u6ce8\u7ecf\u5e38\u67e5\u8be2\u7684\u5217\u3002\u6b64\u5916\uff0c\u5982\u679c\u8868\u7ecf\u5e38\u53d1\u751f\u53d8\u5316\uff0c\u9700\u8981\u5b9a\u671f\u91cd\u5efa\u7d22\u5f15\u4ee5\u7ef4\u6301\u5176\u6709\u6548\u6027\u3002\u901a\u8fc7\u521b\u5efa\u9002\u5f53\u7684\u7d22\u5f15\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u5347\u67e5\u8be2\u901f\u5ea6\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202405\/21\/2024052112181834066.jpg\" class=\"aligncenter\" title=\"oracle\u6570\u636e\u5e93\u600e\u4e48\u521b\u5efa\u7d22\u5f15\u63d2\u56fe\" alt=\"oracle\u6570\u636e\u5e93\u600e\u4e48\u521b\u5efa\u7d22\u5f15\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5728 Oracle \u6570\u636e\u5e93\u4e2d\u521b\u5efa\u7d22\u5f15<\/strong><\/p>\n<p>\u7d22\u5f15\u662f\u6570\u636e\u5e93\u4e2d\u4e00\u79cd\u7279\u6b8a\u7684\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8be2\u7684\u6548\u7387\u3002\u5176\u539f\u7406\u662f\u901a\u8fc7\u5efa\u7acb\u4e00\u4e2a\u6307\u5411\u8868\u4e2d\u7279\u5b9a\u5217\u7684\u6307\u9488\u5217\u8868\uff0c\u4ece\u800c\u52a0\u5feb\u67e5\u8be2\u901f\u5ea6\u3002<\/p>\n<p><strong>\u5982\u4f55\u521b\u5efa\u7d22\u5f15\uff1f<\/strong><\/p>\n<p>\u5728 Oracle \u6570\u636e\u5e93\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u8bed\u53e5\u521b\u5efa\u7d22\u5f15\uff1a<\/p>\n<pre>CREATE INDEX &lt;\u7d22\u5f15\u540d\u79f0&gt; ON &lt;\u8868\u540d&gt; (&lt;\u7d22\u5f15\u5217&gt;)\uff1b<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li>\uff1a\u8981\u521b\u5efa\u7684\u7d22\u5f15\u540d\u79f0\u3002<\/li>\n<li>\uff1a\u8981\u4e3a\u5176\u521b\u5efa\u7d22\u5f15\u7684\u8868\u540d\u3002<\/li>\n<li>\uff1a\u8981\u521b\u5efa\u7d22\u5f15\u7684\u5217\u540d\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<p>\u521b\u5efa\u540d\u4e3a idx_name \u7684\u7d22\u5f15\uff0c\u7528\u4e8e\u8868 customer \u7684 name \u5217\uff1a<\/p>\n<pre>CREATE INDEX idx_name ON customer (name);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u7d22\u5f15\u7684\u7c7b\u578b<\/strong><\/p>\n<p>Oracle \u6570\u636e\u5e93\u652f\u6301\u591a\u79cd\u7c7b\u578b\u7684\u7d22\u5f15\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li> <strong>B-\u6811\u7d22\u5f15\uff1a<\/strong>\u6700\u5e38\u7528\u7684\u7d22\u5f15\u7c7b\u578b\uff0c\u7528\u4e8e\u5feb\u901f\u67e5\u627e\u6570\u636e\u3002<\/li>\n<li> <strong>\u54c8\u5e0c\u7d22\u5f15\uff1a<\/strong>\u7528\u4e8e\u67e5\u627e\u4ee5\u54c8\u5e0c\u503c\u4e3a\u952e\u7684\u6570\u636e\u3002<\/li>\n<li> <strong>\u4f4d\u56fe\u7d22\u5f15\uff1a<\/strong>\u7528\u4e8e\u5728\u5927\u578b\u8868\u4e2d\u67e5\u627e\u7279\u5b9a\u7684\u4f4d\u503c\u3002<\/li>\n<li> <strong>\u5168\u6587\u7d22\u5f15\uff1a<\/strong>\u7528\u4e8e\u5728\u6587\u672c\u6570\u636e\u4e2d\u8fdb\u884c\u5168\u6587\u641c\u7d22\u3002<\/li>\n<\/ul>\n<p><strong>\u521b\u5efa\u7d22\u5f15\u7684\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<ul>\n<li>\u521b\u5efa\u7d22\u5f15\u4f1a\u5f71\u54cd\u63d2\u5165\u3001\u66f4\u65b0\u548c\u5220\u9664\u64cd\u4f5c\u7684\u6027\u80fd\uff0c\u56e0\u6b64\u9700\u8981\u4ed4\u7ec6\u6743\u8861\u521b\u5efa\u7d22\u5f15\u7684\u5229\u5f0a\u3002<\/li>\n<li>\u7d22\u5f15\u5e94\u8be5\u521b\u5efa\u5728\u7ecf\u5e38\u67e5\u8be2\u7684\u5217\u4e0a\u3002<\/li>\n<li>\u5982\u679c\u8868\u7ecf\u5e38\u53d1\u751f\u53d8\u5316\uff0c\u5219\u9700\u8981\u5b9a\u671f\u91cd\u5efa\u7d22\u5f15\u4ee5\u4fdd\u6301\u5176\u6709\u6548\u6027\u3002<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u521b\u5efa\u9002\u5f53\u7684\u7d22\u5f15\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8 Oracle \u6570\u636e\u5e93\u7684\u67e5\u8be2\u6548\u7387\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u6570\u636e\u5e93\u600e\u4e48\u521b\u5efa\u7d22\u5f15\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 oracle \u6570\u636e\u5e93\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7 create index \u8bed\u53e5\u521b\u5efa\u7d22\u5f15\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\uff0c\u8be5\u8bed\u53e5\u8981\u6c42\u6307\u5b9a\u7d22\u5f15\u540d\u79f0\u3001\u8868\u540d\u548c\u7d22\u5f15\u5217\u3002oracle \u6570\u636e\u5e93\u652f\u6301 b-\u6811\u3001\u54c8\u5e0c\u3001\u4f4d\u56fe\u548c\u5168\u6587\u7b49\u4e0d\u540c\u7c7b\u578b\u7684\u7d22\u5f15\u3002\u521b\u5efa\u7d22\u5f15\u5e94\u6743\u8861\u5229\u5f0a\uff0c\u5e76\u5173\u6ce8\u7ecf\u5e38\u67e5\u8be2\u7684\u5217\u3002\u6b64\u5916\uff0c\u5982\u679c\u8868\u7ecf\u5e38\u53d1\u751f\u53d8\u5316\uff0c\u9700\u8981\u5b9a\u671f\u91cd\u5efa\u7d22\u5f15\u4ee5\u7ef4\u6301\u5176\u6709\u6548\u6027\u3002\u901a\u8fc7\u521b\u5efa\u9002\u5f53\u7684\u7d22\u5f15\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u5347\u67e5\u8be2\u901f\u5ea6\u3002 \u5728 Oracle \u6570\u636e\u5e93\u4e2d\u521b\u5efa\u7d22\u5f15 \u7d22\u5f15\u662f\u6570\u636e\u5e93\u4e2d\u4e00\u79cd\u7279\u6b8a\u7684\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8be2\u7684\u6548\u7387\u3002\u5176\u539f\u7406\u662f\u901a\u8fc7\u5efa\u7acb\u4e00\u4e2a\u6307\u5411\u8868\u4e2d\u7279\u5b9a\u5217\u7684\u6307\u9488\u5217\u8868\uff0c\u4ece\u800c\u52a0\u5feb\u67e5\u8be2\u901f\u5ea6\u3002 \u5982\u4f55\u521b\u5efa\u7d22\u5f15\uff1f \u5728 Oracle \u6570\u636e\u5e93\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u8bed\u53e5\u521b\u5efa\u7d22\u5f15\uff1a CREATE INDEX &lt;\u7d22\u5f15\u540d\u79f0&gt; ON &lt;\u8868\u540d&gt; (&lt;\u7d22\u5f15\u5217&gt;)\uff1b \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a \uff1a\u8981\u521b\u5efa\u7684\u7d22\u5f15\u540d\u79f0\u3002 \uff1a\u8981\u4e3a\u5176\u521b\u5efa\u7d22\u5f15\u7684\u8868\u540d\u3002 \uff1a\u8981\u521b\u5efa\u7d22\u5f15\u7684\u5217\u540d\u3002 \u793a\u4f8b\uff1a \u521b\u5efa\u540d\u4e3a idx_name \u7684\u7d22\u5f15\uff0c\u7528\u4e8e\u8868 customer \u7684 name \u5217\uff1a CREATE INDEX idx_name ON customer (name); \u767b\u5f55\u540e\u590d\u5236 \u7d22\u5f15\u7684\u7c7b\u578b Oracle \u6570\u636e\u5e93\u652f\u6301\u591a\u79cd\u7c7b\u578b\u7684\u7d22\u5f15\uff0c\u5305\u62ec\uff1a B-\u6811\u7d22\u5f15\uff1a\u6700\u5e38\u7528\u7684\u7d22\u5f15\u7c7b\u578b\uff0c\u7528\u4e8e\u5feb\u901f\u67e5\u627e\u6570\u636e\u3002 \u54c8\u5e0c\u7d22\u5f15\uff1a\u7528\u4e8e\u67e5\u627e\u4ee5\u54c8\u5e0c\u503c\u4e3a\u952e\u7684\u6570\u636e\u3002 \u4f4d\u56fe\u7d22\u5f15\uff1a\u7528\u4e8e\u5728\u5927\u578b\u8868\u4e2d\u67e5\u627e\u7279\u5b9a\u7684\u4f4d\u503c\u3002 \u5168\u6587\u7d22\u5f15\uff1a\u7528\u4e8e\u5728\u6587\u672c\u6570\u636e\u4e2d\u8fdb\u884c\u5168\u6587\u641c\u7d22\u3002 \u521b\u5efa\u7d22\u5f15\u7684\u6ce8\u610f\u4e8b\u9879 \u521b\u5efa\u7d22\u5f15\u4f1a\u5f71\u54cd\u63d2\u5165\u3001\u66f4\u65b0\u548c\u5220\u9664\u64cd\u4f5c\u7684\u6027\u80fd\uff0c\u56e0\u6b64\u9700\u8981\u4ed4\u7ec6\u6743\u8861\u521b\u5efa\u7d22\u5f15\u7684\u5229\u5f0a\u3002 \u7d22\u5f15\u5e94\u8be5\u521b\u5efa\u5728\u7ecf\u5e38\u67e5\u8be2\u7684\u5217\u4e0a\u3002 \u5982\u679c\u8868\u7ecf\u5e38\u53d1\u751f\u53d8\u5316\uff0c\u5219\u9700\u8981\u5b9a\u671f\u91cd\u5efa\u7d22\u5f15\u4ee5\u4fdd\u6301\u5176\u6709\u6548\u6027\u3002 \u901a\u8fc7\u521b\u5efa\u9002\u5f53\u7684\u7d22\u5f15\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8 Oracle [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-5039","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5039","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=5039"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5039\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5039"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5039"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5039"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}