{"id":162557,"date":"2024-11-04T16:05:20","date_gmt":"2024-11-04T08:05:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/162557\/"},"modified":"2024-11-04T16:05:21","modified_gmt":"2024-11-04T08:05:21","slug":"%e7%b0%a1%e8%a8%8e-oracle-pctused-%e5%8f%83%e6%95%b8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/162557\/","title":{"rendered":"\u7c21\u8a0e Oracle pctused \u53c3\u6578"},"content":{"rendered":"<h1 id=\"%e7%b0%a1%e8%a8%8e-oracle-pctused-%e5%8f%83%e6%95%b8-XCSGzQGaNP\">\u7c21\u8a0e Oracle pctused \u53c3\u6578<\/h1>\n<p>\u5728 Oracle \u6578\u64da\u5eab\u4e2d\uff0c<code>pctused<\/code> \u53c3\u6578\u662f\u4e00\u500b\u91cd\u8981\u7684\u8a2d\u7f6e\uff0c\u5f71\u97ff\u8457\u6578\u64da\u584a\u7684\u4f7f\u7528\u6548\u7387\u548c\u6027\u80fd\u3002\u7406\u89e3\u9019\u500b\u53c3\u6578\u7684\u529f\u80fd\u53ca\u5176\u5c0d\u6578\u64da\u5eab\u6027\u80fd\u7684\u5f71\u97ff\uff0c\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u548c\u958b\u767c\u8005\u4f86\u8aaa\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-pctused%ef%bc%9f-XCSGzQGaNP\">\u4ec0\u9ebc\u662f pctused\uff1f<\/h2>\n<p><code>pctused<\/code> \u662f\u4e00\u500b\u8868\u5c64\u7d1a\u7684\u53c3\u6578\uff0c\u7528\u65bc\u5b9a\u7fa9\u6578\u64da\u584a\u5728\u88ab\u8996\u70ba\u53ef\u7528\u4e4b\u524d\u5fc5\u9808\u4fdd\u7559\u7684\u6700\u5c0f\u7a7a\u9593\u767e\u5206\u6bd4\u3002\u7576\u4e00\u500b\u6578\u64da\u584a\u7684\u4f7f\u7528\u7387\u4f4e\u65bc\u9019\u500b\u767e\u5206\u6bd4\u6642\uff0c\u8a72\u6578\u64da\u584a\u5c07\u4e0d\u518d\u88ab\u7528\u4f86\u5b58\u5132\u65b0\u7684\u6578\u64da\u884c\uff0c\u800c\u662f\u88ab\u6a19\u8a18\u70ba\u53ef\u7528\u3002\u9019\u6a23\u7684\u8a2d\u7f6e\u53ef\u4ee5\u5e6b\u52a9\u6e1b\u5c11\u6578\u64da\u584a\u7684\u788e\u7247\u5316\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/p>\n<h2 id=\"pctused-%e7%9a%84%e9%a0%90%e8%a8%ad%e5%80%bc-XCSGzQGaNP\">pctused \u7684\u9810\u8a2d\u503c<\/h2>\n<p>\u5728 Oracle \u6578\u64da\u5eab\u4e2d\uff0c<code>pctused<\/code> \u7684\u9810\u8a2d\u503c\u901a\u5e38\u70ba 40%\u3002\u9019\u610f\u5473\u8457\u7576\u4e00\u500b\u6578\u64da\u584a\u7684\u4f7f\u7528\u7387\u4f4e\u65bc 40% \u6642\uff0c\u8a72\u6578\u64da\u584a\u5c07\u4e0d\u518d\u88ab\u7528\u4f86\u5b58\u5132\u65b0\u7684\u6578\u64da\u884c\u3002\u9019\u500b\u503c\u53ef\u4ee5\u6839\u64da\u5177\u9ad4\u7684\u61c9\u7528\u9700\u6c42\u9032\u884c\u8abf\u6574\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%a8%ad%e7%bd%ae-pctused-XCSGzQGaNP\">\u5982\u4f55\u8a2d\u7f6e pctused<\/h2>\n<p>\u5728\u5275\u5efa\u8868\u6642\uff0c\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b SQL \u8a9e\u53e5\u4f86\u8a2d\u7f6e <code>pctused<\/code> \u53c3\u6578\uff1a<\/p>\n<pre><code>CREATE TABLE example_table (\n    id NUMBER,\n    name VARCHAR2(100)\n) PCTUSED 30;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c<code>pctused<\/code> \u88ab\u8a2d\u7f6e\u70ba 30%\uff0c\u9019\u610f\u5473\u8457\u7576\u6578\u64da\u584a\u7684\u4f7f\u7528\u7387\u4f4e\u65bc 30% \u6642\uff0c\u8a72\u6578\u64da\u584a\u5c07\u4e0d\u518d\u88ab\u7528\u4f86\u5b58\u5132\u65b0\u7684\u6578\u64da\u884c\u3002<\/p>\n<h2 id=\"pctused-%e7%9a%84%e5%bd%b1%e9%9f%bf-XCSGzQGaNP\">pctused \u7684\u5f71\u97ff<\/h2>\n<p>\u8abf\u6574 <code>pctused<\/code> \u53c3\u6578\u53ef\u4ee5\u5c0d\u6578\u64da\u5eab\u6027\u80fd\u7522\u751f\u986f\u8457\u5f71\u97ff\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u53ef\u80fd\u7684\u5f71\u97ff\uff1a<\/p>\n<ul>\n<li><strong>\u6027\u80fd\u63d0\u5347\uff1a<\/strong>\u9069\u7576\u7684 <code>pctused<\/code> \u8a2d\u7f6e\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u584a\u7684\u788e\u7247\u5316\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<li><strong>\u7a7a\u9593\u5229\u7528\u7387\uff1a<\/strong>\u5982\u679c <code>pctused<\/code> \u8a2d\u7f6e\u5f97\u904e\u9ad8\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u7a7a\u9593\u7684\u6d6a\u8cbb\uff0c\u56e0\u70ba\u6578\u64da\u584a\u5c07\u88ab\u6a19\u8a18\u70ba\u4e0d\u53ef\u7528\uff0c\u5118\u7ba1\u4ecd\u6709\u7a7a\u9593\u53ef\u7528\u3002<\/li>\n<li><strong>\u63d2\u5165\u6027\u80fd\uff1a<\/strong>\u8f03\u4f4e\u7684 <code>pctused<\/code> \u503c\u53ef\u80fd\u6703\u5c0e\u81f4\u66f4\u983b\u7e41\u7684\u6578\u64da\u584a\u5206\u88c2\uff0c\u5f9e\u800c\u5f71\u97ff\u63d2\u5165\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-XCSGzQGaNP\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u5728\u8a2d\u7f6e <code>pctused<\/code> \u53c3\u6578\u6642\uff0c\u5efa\u8b70\u9075\u5faa\u4ee5\u4e0b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li>\u6839\u64da\u61c9\u7528\u7684\u7279\u6027\u9032\u884c\u8abf\u6574\uff1a\u4e0d\u540c\u7684\u61c9\u7528\u5c0d\u6578\u64da\u7684\u63d2\u5165\u3001\u66f4\u65b0\u548c\u522a\u9664\u64cd\u4f5c\u6709\u4e0d\u540c\u7684\u9700\u6c42\uff0c\u61c9\u6839\u64da\u5be6\u969b\u60c5\u6cc1\u8abf\u6574 <code>pctused<\/code>\u3002<\/li>\n<li>\u76e3\u63a7\u6027\u80fd\uff1a\u5b9a\u671f\u76e3\u63a7\u6578\u64da\u5eab\u6027\u80fd\uff0c\u6839\u64da\u6027\u80fd\u6307\u6a19\u8abf\u6574 <code>pctused<\/code> \u503c\u3002<\/li>\n<li>\u6e2c\u8a66\u8b8a\u66f4\uff1a\u5728\u751f\u7522\u74b0\u5883\u4e2d\u5be6\u65bd\u8b8a\u66f4\u4e4b\u524d\uff0c\u61c9\u5728\u6e2c\u8a66\u74b0\u5883\u4e2d\u9032\u884c\u5145\u5206\u6e2c\u8a66\uff0c\u4ee5\u78ba\u4fdd\u4e0d\u6703\u5c0d\u6027\u80fd\u9020\u6210\u8ca0\u9762\u5f71\u97ff\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-XCSGzQGaNP\">\u7d50\u8ad6<\/h2>\n<p>\u7e3d\u4e4b\uff0c<code>pctused<\/code> \u53c3\u6578\u5728 Oracle \u6578\u64da\u5eab\u4e2d\u626e\u6f14\u8457\u91cd\u8981\u89d2\u8272\uff0c\u5f71\u97ff\u8457\u6578\u64da\u584a\u7684\u4f7f\u7528\u6548\u7387\u548c\u6574\u9ad4\u6027\u80fd\u3002\u901a\u904e\u5408\u7406\u8a2d\u7f6e\u548c\u8abf\u6574 <code>pctused<\/code>\uff0c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u4ee5\u512a\u5316\u6578\u64da\u5eab\u6027\u80fd\uff0c\u63d0\u5347\u61c9\u7528\u7684\u97ff\u61c9\u901f\u5ea6\u548c\u6548\u7387\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\u4f86\u8aaa\uff0c\u7406\u89e3\u548c\u904b\u7528 <code>pctused<\/code> \u662f\u4e00\u9805\u4e0d\u53ef\u6216\u7f3a\u7684\u6280\u80fd\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u548c\u6578\u64da\u5eab\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3Oracle\u7684pctused\u53c3\u6578\uff0c\u5982\u4f55\u5f71\u97ff\u6578\u64da\u584a\u7684\u4f7f\u7528\u6548\u7387\u53ca\u6027\u80fd\u512a\u5316\uff0c\u63d0\u5347\u6578\u64da\u5eab\u7ba1\u7406\u7684\u6548\u679c\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-162557","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162557","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=162557"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162557\/revisions"}],"predecessor-version":[{"id":162558,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162557\/revisions\/162558"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=162557"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=162557"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=162557"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}