{"id":182336,"date":"2024-11-09T21:35:19","date_gmt":"2024-11-09T13:35:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/182336\/"},"modified":"2024-11-09T21:35:19","modified_gmt":"2024-11-09T13:35:19","slug":"%e6%b7%b1%e8%ab%87oracle-freelist%e7%b6%93%e9%a9%97","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/182336\/","title":{"rendered":"\u6df1\u8ac7Oracle Freelist\u7d93\u9a57"},"content":{"rendered":"<h1 id=\"%e6%b7%b1%e8%ab%87oracle-freelist%e7%b6%93%e9%a9%97-DOwiqkVBOF\">\u6df1\u8ac7Oracle Freelist\u7d93\u9a57<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cOracle\u7684Freelist\u662f\u4e00\u500b\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u9ad8\u6548\u80fd\u548c\u9ad8\u53ef\u7528\u6027\u7684\u61c9\u7528\u6642\u3002Freelist\u7684\u4e3b\u8981\u529f\u80fd\u662f\u7ba1\u7406\u6578\u64da\u584a\u7684\u53ef\u7528\u6027\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u5feb\u901f\u5b58\u53d6\u548c\u5beb\u5165\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eOracle Freelist\u7684\u904b\u4f5c\u539f\u7406\u3001\u914d\u7f6e\u65b9\u6cd5\u53ca\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u7d93\u9a57\u5206\u4eab\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%affreelist%ef%bc%9f-DOwiqkVBOF\">\u4ec0\u9ebc\u662fFreelist\uff1f<\/h2>\n<p>Freelist\u662fOracle\u6578\u64da\u5eab\u4e2d\u7528\u4f86\u8ffd\u8e64\u53ef\u7528\u6578\u64da\u584a\u7684\u7d50\u69cb\u3002\u7576\u4e00\u500b\u6578\u64da\u584a\u88ab\u91cb\u653e\u5f8c\uff0c\u5b83\u6703\u88ab\u52a0\u5165\u5230Freelist\u4e2d\uff0c\u9019\u6a23\u5728\u9700\u8981\u5beb\u5165\u65b0\u6578\u64da\u6642\uff0cOracle\u53ef\u4ee5\u5feb\u901f\u627e\u5230\u53ef\u7528\u7684\u6578\u64da\u584a\u3002Freelist\u7684\u6709\u6548\u7ba1\u7406\u5c0d\u65bc\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u81f3\u95dc\u91cd\u8981\uff0c\u7279\u5225\u662f\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\u3002<\/p>\n<h2 id=\"freelist%e7%9a%84%e9%81%8b%e4%bd%9c%e5%8e%9f%e7%90%86-DOwiqkVBOF\">Freelist\u7684\u904b\u4f5c\u539f\u7406<\/h2>\n<p>\u5728Oracle\u4e2d\uff0c\u6bcf\u500b\u8868\u7a7a\u9593\u90fd\u53ef\u4ee5\u6709\u591a\u500bFreelist\u3002\u7576\u4e00\u500b\u4e8b\u52d9\u9700\u8981\u63d2\u5165\u6578\u64da\u6642\uff0cOracle\u6703\u5f9eFreelist\u4e2d\u9078\u64c7\u4e00\u500b\u53ef\u7528\u7684\u6578\u64da\u584a\u9032\u884c\u5beb\u5165\u3002\u9019\u6a23\u7684\u8a2d\u8a08\u53ef\u4ee5\u6e1b\u5c11\u9396\u7af6\u722d\uff0c\u56e0\u70ba\u4e0d\u540c\u7684\u4e8b\u52d9\u53ef\u4ee5\u540c\u6642\u5beb\u5165\u4e0d\u540c\u7684\u6578\u64da\u584a\u3002<\/p>\n<p>Freelist\u7684\u904b\u4f5c\u904e\u7a0b\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\u7576\u6578\u64da\u584a\u88ab\u91cb\u653e\u6642\uff0c\u5b83\u6703\u88ab\u52a0\u5165\u5230Freelist\u4e2d\u3002<\/li>\n<li>\u7576\u9700\u8981\u63d2\u5165\u65b0\u6578\u64da\u6642\uff0cOracle\u6703\u5f9eFreelist\u4e2d\u9078\u64c7\u4e00\u500b\u53ef\u7528\u7684\u6578\u64da\u584a\u3002<\/li>\n<li>\u5982\u679cFreelist\u4e2d\u7684\u6578\u64da\u584a\u7528\u5b8c\uff0cOracle\u6703\u81ea\u52d5\u64f4\u5c55\u8868\u7a7a\u9593\uff0c\u4e26\u5275\u5efa\u65b0\u7684\u6578\u64da\u584a\u3002<\/li>\n<\/ul>\n<h2 id=\"freelist%e7%9a%84%e9%85%8d%e7%bd%ae-DOwiqkVBOF\">Freelist\u7684\u914d\u7f6e<\/h2>\n<p>\u5728Oracle\u4e2d\uff0cFreelist\u7684\u914d\u7f6e\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\u9032\u884c\uff1a<\/p>\n<ol>\n<li>\u5275\u5efa\u8868\u6642\u6307\u5b9aFreelist\u7684\u6578\u91cf\uff1a<\/li>\n<pre><code>CREATE TABLE my_table (\n        id NUMBER,\n        name VARCHAR2(50)\n    ) STORAGE (FREELISTS 2);<\/code><\/pre>\n<li>\u8abf\u6574\u73fe\u6709\u8868\u7684Freelist\u6578\u91cf\uff1a<\/li>\n<pre><code>ALTER TABLE my_table STORAGE (FREELISTS 4);<\/code><\/pre>\n<\/ol>\n<p>\u6839\u64da\u5be6\u969b\u7684\u61c9\u7528\u9700\u6c42\uff0c\u9069\u7576\u8abf\u6574Freelist\u7684\u6578\u91cf\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u4e00\u822c\u4f86\u8aaa\uff0c\u5c0d\u65bc\u9ad8\u4e26\u767c\u7684\u61c9\u7528\uff0c\u5efa\u8b70\u4f7f\u7528\u591a\u500bFreelist\u4f86\u6e1b\u5c11\u9396\u7af6\u722d\u3002<\/p>\n<h2 id=\"%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e4%b8%ad%e7%9a%84%e7%b6%93%e9%a9%97%e5%88%86%e4%ba%ab-DOwiqkVBOF\">\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u7d93\u9a57\u5206\u4eab<\/h2>\n<p>\u5728\u5be6\u969b\u7684\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cFreelist\u7684\u914d\u7f6e\u548c\u7ba1\u7406\u7d93\u5e38\u6703\u5f71\u97ff\u5230\u6574\u9ad4\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5be6\u969b\u7d93\u9a57\uff1a<\/p>\n<ul>\n<li><strong>\u76e3\u63a7Freelist\u7684\u4f7f\u7528\u60c5\u6cc1\uff1a<\/strong>\u5b9a\u671f\u6aa2\u67e5Freelist\u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u78ba\u4fdd\u5176\u4e0d\u6703\u904e\u5ea6\u8017\u76e1\u3002<\/li>\n<li><strong>\u6839\u64da\u8ca0\u8f09\u8abf\u6574Freelist\u6578\u91cf\uff1a<\/strong>\u5728\u9ad8\u5cf0\u671f\uff0c\u9069\u7576\u589e\u52a0Freelist\u7684\u6578\u91cf\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u5beb\u5165\u5ef6\u9072\u3002<\/li>\n<li><strong>\u7d50\u5408\u5176\u4ed6\u6027\u80fd\u512a\u5316\u6280\u8853\uff1a<\/strong>Freelist\u7684\u7ba1\u7406\u61c9\u8207\u5176\u4ed6\u6027\u80fd\u512a\u5316\u6280\u8853\u7d50\u5408\u4f7f\u7528\uff0c\u5982\u7d22\u5f15\u512a\u5316\u548c\u67e5\u8a62\u8abf\u6574\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-DOwiqkVBOF\">\u7d50\u8ad6<\/h2>\n<p>Oracle Freelist\u5728\u6578\u64da\u5eab\u6027\u80fd\u512a\u5316\u4e2d\u626e\u6f14\u8457\u91cd\u8981\u89d2\u8272\u3002\u901a\u904e\u5408\u7406\u7684\u914d\u7f6e\u548c\u7ba1\u7406\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u5beb\u5165\u6548\u7387\u548c\u6574\u9ad4\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u9ad8\u6548\u80fd\u7684\u61c9\u7528\uff0c\u6df1\u5165\u7406\u89e3Freelist\u7684\u904b\u4f5c\u539f\u7406\u53ca\u5176\u914d\u7f6e\u65b9\u6cd5\u662f\u975e\u5e38\u5fc5\u8981\u7684\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc\u65bc<code><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/code>\u53ca<code><a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a><\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u63a2\u8a0eOracle Freelist\u7684\u7d93\u9a57\uff0c\u63ed\u793a\u5176\u5728\u6578\u64da\u5eab\u6027\u80fd\u512a\u5316\u4e2d\u7684\u95dc\u9375\u4f5c\u7528\u8207\u6700\u4f73\u5be6\u8e10\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-182336","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/182336","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=182336"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/182336\/revisions"}],"predecessor-version":[{"id":182337,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/182336\/revisions\/182337"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=182336"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=182336"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=182336"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}