{"id":170075,"date":"2024-11-06T20:56:21","date_gmt":"2024-11-06T12:56:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/170075\/"},"modified":"2024-11-06T20:56:21","modified_gmt":"2024-11-06T12:56:21","slug":"%e4%bd%a0%e6%98%af%e5%90%a6%e4%ba%86%e8%a7%a3oracle-b%e6%a8%b9%e7%b4%a2%e5%bc%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/170075\/","title":{"rendered":"\u4f60\u662f\u5426\u4e86\u89e3Oracle B\u6a39\u7d22\u5f15"},"content":{"rendered":"<h1 id=\"%e4%bd%a0%e6%98%af%e5%90%a6%e4%ba%86%e8%a7%a3oracle-b%e6%a8%b9%e7%b4%a2%e5%bc%95-gYpNycXJzD\">\u4f60\u662f\u5426\u4e86\u89e3Oracle B\u6a39\u7d22\u5f15<\/h1>\n<p>\u5728\u6578\u64da\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\u6548\u7387\u3002Oracle\u6578\u64da\u5eab\u4e2d\u6700\u5e38\u7528\u7684\u7d22\u5f15\u985e\u578b\u4e4b\u4e00\u662fB\u6a39\u7d22\u5f15\uff08B-Tree Index\uff09\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eB\u6a39\u7d22\u5f15\u7684\u57fa\u672c\u6982\u5ff5\u3001\u7279\u6027\u3001\u512a\u7f3a\u9ede\u4ee5\u53ca\u4f7f\u7528\u5834\u666f\u3002<\/p>\n<h2 id=\"b%e6%a8%b9%e7%b4%a2%e5%bc%95%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-gYpNycXJzD\">B\u6a39\u7d22\u5f15\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>B\u6a39\u7d22\u5f15\u662f\u4e00\u7a2e\u81ea\u5e73\u8861\u7684\u6a39\u5f62\u6578\u64da\u7d50\u69cb\uff0c\u80fd\u5920\u4fdd\u6301\u6578\u64da\u6709\u5e8f\u4e26\u652f\u6301\u9ad8\u6548\u7684\u67e5\u8a62\u3001\u63d2\u5165\u548c\u522a\u9664\u64cd\u4f5c\u3002B\u6a39\u7684\u6bcf\u500b\u7bc0\u9ede\u53ef\u4ee5\u5305\u542b\u591a\u500b\u9375\u503c\u548c\u6307\u5411\u5b50\u7bc0\u9ede\u7684\u6307\u91dd\uff0c\u9019\u4f7f\u5f97B\u6a39\u80fd\u5920\u5728\u6bcf\u6b21\u67e5\u8a62\u6642\u6e1b\u5c11\u9700\u8981\u8a2a\u554f\u7684\u78c1\u789f\u9801\u9762\u6578\u91cf\u3002<\/p>\n<h2 id=\"b%e6%a8%b9%e7%b4%a2%e5%bc%95%e7%9a%84%e7%89%b9%e6%80%a7-gYpNycXJzD\">B\u6a39\u7d22\u5f15\u7684\u7279\u6027<\/h2>\n<ul>\n<li><strong>\u81ea\u5e73\u8861\u6027\uff1a<\/strong>\u7576\u63d2\u5165\u6216\u522a\u9664\u9375\u503c\u6642\uff0cB\u6a39\u6703\u81ea\u52d5\u9032\u884c\u8abf\u6574\uff0c\u4ee5\u4fdd\u6301\u6a39\u7684\u5e73\u8861\uff0c\u78ba\u4fdd\u67e5\u8a62\u6548\u7387\u3002<\/li>\n<li><strong>\u591a\u8def\u6027\uff1a<\/strong>B\u6a39\u7684\u6bcf\u500b\u7bc0\u9ede\u53ef\u4ee5\u6709\u591a\u500b\u5b50\u7bc0\u9ede\uff0c\u9019\u4f7f\u5f97\u5b83\u80fd\u5920\u5728\u8f03\u5c11\u7684\u5c64\u7d1a\u4e2d\u5b58\u5132\u66f4\u591a\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u6709\u5e8f\u6027\uff1a<\/strong>\u6240\u6709\u7684\u9375\u503c\u90fd\u6309\u7167\u4e00\u5b9a\u7684\u9806\u5e8f\u6392\u5217\uff0c\u9019\u4f7f\u5f97\u7bc4\u570d\u67e5\u8a62\u8b8a\u5f97\u9ad8\u6548\u3002<\/li>\n<\/ul>\n<h2 id=\"b%e6%a8%b9%e7%b4%a2%e5%bc%95%e7%9a%84%e5%84%aa%e7%bc%ba%e9%bb%9e-gYpNycXJzD\">B\u6a39\u7d22\u5f15\u7684\u512a\u7f3a\u9ede<\/h2>\n<h3 id=\"%e5%84%aa%e9%bb%9e-gYpNycXJzD\">\u512a\u9ede<\/h3>\n<ul>\n<li><strong>\u9ad8\u6548\u67e5\u8a62\uff1a<\/strong>B\u6a39\u7d22\u5f15\u80fd\u5920\u5feb\u901f\u5b9a\u4f4d\u5230\u6240\u9700\u7684\u6578\u64da\uff0c\u7279\u5225\u662f\u5728\u9032\u884c\u7bc4\u570d\u67e5\u8a62\u6642\u3002<\/li>\n<li><strong>\u652f\u6301\u591a\u7a2e\u67e5\u8a62\u64cd\u4f5c\uff1a<\/strong>\u4e0d\u50c5\u652f\u6301\u7b49\u503c\u67e5\u8a62\uff0c\u9084\u652f\u6301\u7bc4\u570d\u67e5\u8a62\u548c\u524d\u7db4\u67e5\u8a62\u3002<\/li>\n<li><strong>\u81ea\u52d5\u5e73\u8861\uff1a<\/strong>\u96a8\u8457\u6578\u64da\u7684\u589e\u9577\uff0cB\u6a39\u80fd\u5920\u81ea\u52d5\u8abf\u6574\u7d50\u69cb\uff0c\u4fdd\u6301\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%bc%ba%e9%bb%9e-gYpNycXJzD\">\u7f3a\u9ede<\/h3>\n<ul>\n<li><strong>\u63d2\u5165\u548c\u522a\u9664\u6027\u80fd\uff1a<\/strong>\u96d6\u7136B\u6a39\u80fd\u5920\u81ea\u52d5\u5e73\u8861\uff0c\u4f46\u5728\u9ad8\u983b\u7387\u7684\u63d2\u5165\u548c\u522a\u9664\u64cd\u4f5c\u4e2d\uff0c\u6027\u80fd\u53ef\u80fd\u6703\u53d7\u5230\u5f71\u97ff\u3002<\/li>\n<li><strong>\u7a7a\u9593\u958b\u92b7\uff1a<\/strong>\u7531\u65bc\u6bcf\u500b\u7bc0\u9ede\u53ef\u4ee5\u5b58\u5132\u591a\u500b\u9375\u503c\uff0c\u9019\u53ef\u80fd\u5c0e\u81f4\u4e00\u5b9a\u7684\u7a7a\u9593\u6d6a\u8cbb\u3002<\/li>\n<\/ul>\n<h2 id=\"b%e6%a8%b9%e7%b4%a2%e5%bc%95%e7%9a%84%e4%bd%bf%e7%94%a8%e5%a0%b4%e6%99%af-gYpNycXJzD\">B\u6a39\u7d22\u5f15\u7684\u4f7f\u7528\u5834\u666f<\/h2>\n<p>B\u6a39\u7d22\u5f15\u9069\u5408\u7528\u65bc\u9700\u8981\u983b\u7e41\u67e5\u8a62\u7684\u5834\u666f\uff0c\u7279\u5225\u662f\u7576\u6578\u64da\u91cf\u8f03\u5927\u4e14\u67e5\u8a62\u689d\u4ef6\u591a\u6a23\u5316\u6642\u3002\u4f8b\u5982\uff0c\u96fb\u5b50\u5546\u52d9\u7db2\u7ad9\u7684\u7522\u54c1\u67e5\u8a62\u3001\u9280\u884c\u7cfb\u7d71\u7684\u4ea4\u6613\u67e5\u8a62\u7b49\uff0c\u9019\u4e9b\u5834\u666f\u90fd\u80fd\u5920\u5f9eB\u6a39\u7d22\u5f15\u4e2d\u7372\u76ca\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8oracle%e4%b8%ad%e5%89%b5%e5%bb%bab%e6%a8%b9%e7%b4%a2%e5%bc%95-gYpNycXJzD\">\u5982\u4f55\u5728Oracle\u4e2d\u5275\u5efaB\u6a39\u7d22\u5f15<\/h2>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u5275\u5efaB\u6a39\u7d22\u5f15\u7684\u8a9e\u6cd5\u975e\u5e38\u7c21\u55ae\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u57fa\u672c\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE INDEX index_name ON table_name (column_name);<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u5728\u6307\u5b9a\u7684\u8868\u4e0a\u5275\u5efa\u4e00\u500b\u57fa\u65bc\u6307\u5b9a\u5217\u7684B\u6a39\u7d22\u5f15\u3002\u7528\u6236\u53ef\u4ee5\u6839\u64da\u9700\u8981\u9078\u64c7\u4e0d\u540c\u7684\u7d22\u5f15\u9078\u9805\u4f86\u512a\u5316\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-gYpNycXJzD\">\u7e3d\u7d50<\/h2>\n<p>Oracle B\u6a39\u7d22\u5f15\u662f\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u7d50\u69cb\uff0c\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u96d6\u7136\u5728\u63d2\u5165\u548c\u522a\u9664\u64cd\u4f5c\u4e2d\u53ef\u80fd\u6703\u6709\u4e00\u4e9b\u6027\u80fd\u640d\u5931\uff0c\u4f46\u5176\u5728\u67e5\u8a62\u65b9\u9762\u7684\u512a\u52e2\u4f7f\u5176\u6210\u70ba\u8a31\u591a\u61c9\u7528\u5834\u666f\u7684\u9996\u9078\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u6aa2\u7d22\u7684\u7cfb\u7d71\uff0c\u9078\u64c7\u5408\u9069\u7684\u7d22\u5f15\u985e\u578b\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u6216\u5176\u4ed6\u76f8\u95dc\u6280\u8853\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4e86\u89e3\u66f4\u591a\u8cc7\u8a0a\uff0c\u7279\u5225\u662f\u6211\u5011\u7684<a href=\"https:\/\/server.hk\">VPS<\/a> \u65b9\u6848\uff0c\u70ba\u60a8\u7684\u696d\u52d9\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3Oracle B\u6811\u7d22\u5f15\u7684\u7ed3\u6784\u4e0e\u6027\u80fd\u4f18\u52bf\uff0c\u63d0\u5347\u6570\u636e\u5e93\u67e5\u8be2\u6548\u7387\uff0c\u4f18\u5316\u6570\u636e\u5b58\u50a8\u4e0e\u68c0\u7d22\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-170075","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/170075","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=170075"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/170075\/revisions"}],"predecessor-version":[{"id":170076,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/170075\/revisions\/170076"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=170075"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=170075"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=170075"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}