{"id":95884,"date":"2024-10-20T04:48:23","date_gmt":"2024-10-19T20:48:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95884\/"},"modified":"2024-10-20T04:48:24","modified_gmt":"2024-10-19T20:48:24","slug":"oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%a7%e8%83%bd%e8%a1%a8%e4%bd%94%e7%94%a8%e7%9b%a4%e5%8d%80%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95884\/","title":{"rendered":"Oracle\u6578\u64da\u5eab\u6027\u80fd:\u8868\u4f54\u7528\u76e4\u5340\u89e3\u6790"},"content":{"rendered":"<h1 id=\"oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%a7%e8%83%bd%e8%a1%a8%e4%bd%94%e7%94%a8%e7%9b%a4%e5%8d%80%e8%a7%a3%e6%9e%90-tJRkqBcTmZ\">Oracle\u6578\u64da\u5eab\u6027\u80fd:\u8868\u4f54\u7528\u76e4\u5340\u89e3\u6790<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u5c0d\u65bc\u4f01\u696d\u7684\u904b\u71df\u81f3\u95dc\u91cd\u8981\u3002Oracle\u6578\u64da\u5eab\u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u884c\u696d\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eOracle\u6578\u64da\u5eab\u4e2d\u8868\u4f54\u7528\u76e4\u5340\u7684\u89e3\u6790\uff0c\u5e6b\u52a9\u7528\u6236\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u512a\u5316\u6578\u64da\u5eab\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e8%a1%a8%e4%bd%94%e7%94%a8%e7%9b%a4%e5%8d%80%ef%bc%9f-tJRkqBcTmZ\">\u4ec0\u9ebc\u662f\u8868\u4f54\u7528\u76e4\u5340\uff1f<\/h2>\n<p>\u8868\u4f54\u7528\u76e4\u5340\u662f\u6307\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u7279\u5b9a\u8868\u6240\u4f54\u7528\u7684\u78c1\u789f\u7a7a\u9593\u3002\u9019\u5305\u62ec\u8868\u7684\u6578\u64da\u3001\u7d22\u5f15\u3001\u4ee5\u53ca\u5176\u4ed6\u76f8\u95dc\u7684\u7d50\u69cb\u3002\u4e86\u89e3\u8868\u4f54\u7528\u7684\u76e4\u5340\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u4f86\u8aaa\u81f3\u95dc\u91cd\u8981\uff0c\u56e0\u70ba\u5b83\u76f4\u63a5\u5f71\u97ff\u5230\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u5b58\u5132\u6548\u7387\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e6%9f%a5%e8%a9%a2%e8%a1%a8%e4%bd%94%e7%94%a8%e7%9b%a4%e5%8d%80-tJRkqBcTmZ\">\u5982\u4f55\u67e5\u8a62\u8868\u4f54\u7528\u76e4\u5340<\/h2>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u7372\u53d6\u7279\u5b9a\u8868\u7684\u4f54\u7528\u76e4\u5340\u4fe1\u606f\uff1a<\/p>\n<pre><code>SELECT \n    segment_name, \n    segment_type, \n    bytes \/ 1024 \/ 1024 AS size_mb \nFROM \n    user_segments \nWHERE \n    segment_name = 'YOUR_TABLE_NAME';\n<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u67e5\u8a62\u4e2d\uff0c`YOUR_TABLE_NAME`\u9700\u8981\u66ff\u63db\u70ba\u4f60\u60f3\u8981\u67e5\u8a62\u7684\u8868\u540d\u3002\u67e5\u8a62\u7d50\u679c\u5c07\u986f\u793a\u8a72\u8868\u7684\u540d\u7a31\u3001\u985e\u578b\u4ee5\u53ca\u4f54\u7528\u7684\u78c1\u789f\u7a7a\u9593\uff08\u4ee5MB\u70ba\u55ae\u4f4d\uff09\u3002<\/p>\n<h2 id=\"%e5%bd%b1%e9%9f%bf%e8%a1%a8%e4%bd%94%e7%94%a8%e7%9b%a4%e5%8d%80%e7%9a%84%e5%9b%a0%e7%b4%a0-tJRkqBcTmZ\">\u5f71\u97ff\u8868\u4f54\u7528\u76e4\u5340\u7684\u56e0\u7d20<\/h2>\n<ul>\n<li><strong>\u6578\u64da\u91cf\uff1a<\/strong>\u8868\u4e2d\u5b58\u5132\u7684\u6578\u64da\u91cf\u8d8a\u5927\uff0c\u4f54\u7528\u7684\u76e4\u5340\u4e5f\u8d8a\u591a\u3002<\/li>\n<li><strong>\u7d22\u5f15\uff1a<\/strong>\u7d22\u5f15\u7684\u5b58\u5728\u6703\u589e\u52a0\u8868\u7684\u4f54\u7528\u7a7a\u9593\uff0c\u7279\u5225\u662f\u7576\u7d22\u5f15\u6578\u91cf\u8f03\u591a\u6642\u3002<\/li>\n<li><strong>\u6578\u64da\u985e\u578b\uff1a<\/strong>\u4e0d\u540c\u7684\u6578\u64da\u985e\u578b\u4f54\u7528\u7684\u7a7a\u9593\u4e0d\u540c\uff0c\u4f8b\u5982\uff0cVARCHAR2\u985e\u578b\u7684\u5b57\u6bb5\u5728\u5b58\u5132\u6642\u6703\u6839\u64da\u5be6\u969b\u6578\u64da\u9577\u5ea6\u4f54\u7528\u7a7a\u9593\uff0c\u800cCHAR\u985e\u578b\u5247\u6703\u56fa\u5b9a\u4f54\u7528\u7a7a\u9593\u3002<\/li>\n<li><strong>\u788e\u7247\uff1a<\/strong>\u96a8\u8457\u6578\u64da\u7684\u589e\u522a\u6539\uff0c\u8868\u7684\u788e\u7247\u5316\u7a0b\u5ea6\u6703\u5f71\u97ff\u5176\u4f54\u7528\u7684\u76e4\u5340\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%84%aa%e5%8c%96%e8%a1%a8%e4%bd%94%e7%94%a8%e7%9b%a4%e5%8d%80%e7%9a%84%e6%96%b9%e6%b3%95-tJRkqBcTmZ\">\u512a\u5316\u8868\u4f54\u7528\u76e4\u5340\u7684\u65b9\u6cd5<\/h2>\n<p>\u70ba\u4e86\u63d0\u9ad8Oracle\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u7ba1\u7406\u54e1\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\u4f86\u512a\u5316\u8868\u7684\u4f54\u7528\u76e4\u5340\uff1a<\/p>\n<h3 id=\"1-%e5%ae%9a%e6%9c%9f%e9%87%8d%e7%b5%84%e8%a1%a8-tJRkqBcTmZ\">1. \u5b9a\u671f\u91cd\u7d44\u8868<\/h3>\n<p>\u4f7f\u7528`ALTER TABLE &#8230; MOVE`\u547d\u4ee4\u53ef\u4ee5\u91cd\u7d44\u8868\uff0c\u6e1b\u5c11\u788e\u7247\u4e26\u91cb\u653e\u672a\u4f7f\u7528\u7684\u7a7a\u9593\uff1a<\/p>\n<pre><code>ALTER TABLE YOUR_TABLE_NAME MOVE;\n<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e5%a3%93%e7%b8%ae%e6%8a%80%e8%a1%93-tJRkqBcTmZ\">2. \u4f7f\u7528\u58d3\u7e2e\u6280\u8853<\/h3>\n<p>Oracle\u63d0\u4f9b\u4e86\u8868\u58d3\u7e2e\u529f\u80fd\uff0c\u53ef\u4ee5\u6e1b\u5c11\u8868\u7684\u4f54\u7528\u7a7a\u9593\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u53ef\u4ee5\u555f\u7528\u58d3\u7e2e\uff1a<\/p>\n<pre><code>ALTER TABLE YOUR_TABLE_NAME ENABLE ROW MOVEMENT;\nALTER TABLE YOUR_TABLE_NAME COMPRESS FOR OLTP;\n<\/code><\/pre>\n<h3 id=\"3-%e5%ae%9a%e6%9c%9f%e6%b8%85%e7%90%86%e4%b8%8d%e5%bf%85%e8%a6%81%e7%9a%84%e6%95%b8%e6%93%9a-tJRkqBcTmZ\">3. \u5b9a\u671f\u6e05\u7406\u4e0d\u5fc5\u8981\u7684\u6578\u64da<\/h3>\n<p>\u5b9a\u671f\u6aa2\u67e5\u4e26\u522a\u9664\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u6709\u6548\u91cb\u653e\u78c1\u789f\u7a7a\u9593\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-tJRkqBcTmZ\">\u7d50\u8ad6<\/h2>\n<p>\u4e86\u89e3Oracle\u6578\u64da\u5eab\u4e2d\u8868\u4f54\u7528\u76e4\u5340\u7684\u60c5\u6cc1\uff0c\u5c0d\u65bc\u512a\u5316\u6578\u64da\u5eab\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u5b9a\u671f\u67e5\u8a62\u4f54\u7528\u60c5\u6cc1\u3001\u91cd\u7d44\u8868\u3001\u4f7f\u7528\u58d3\u7e2e\u6280\u8853\u4ee5\u53ca\u6e05\u7406\u4e0d\u5fc5\u8981\u7684\u6578\u64da\uff0c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u7684\u5b58\u5132\u8cc7\u6e90\uff0c\u63d0\u5347\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5728\u9999\u6e2f\u7684\u74b0\u5883\u4e2d\u512a\u5316\u60a8\u7684\u6578\u64da\u5eab\u6027\u80fd\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a>\uff0c\u6211\u5011\u63d0\u4f9b\u5404\u7a2e <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u60a8\u5be6\u73fe\u6700\u4f73\u7684\u6578\u64da\u5eab\u7ba1\u7406\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u89e3\u6790Oracle\u6578\u64da\u5eab\u6027\u80fd\uff0c\u63a2\u8a0e\u8868\u4f54\u7528\u76e4\u5340\u7684\u5f71\u97ff\u53ca\u512a\u5316\u7b56\u7565\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\u8207\u7cfb\u7d71\u7a69\u5b9a\u6027\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-95884","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95884","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=95884"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95884\/revisions"}],"predecessor-version":[{"id":95885,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95884\/revisions\/95885"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95884"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95884"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95884"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}