{"id":94608,"date":"2024-10-19T19:40:18","date_gmt":"2024-10-19T11:40:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/94608\/"},"modified":"2024-10-19T19:40:19","modified_gmt":"2024-10-19T11:40:19","slug":"oracle-%e8%85%b3%e6%9c%ac%e4%b9%8b%e6%9f%a5%e7%9c%8b%e5%a3%93%e7%b8%ae%e8%a1%a8%e6%a0%bc%e5%af%a6%e9%9a%9b%e6%93%8d%e4%bd%9c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/94608\/","title":{"rendered":"Oracle \u8173\u672c\u4e4b\u67e5\u770b\u58d3\u7e2e\u8868\u683c\u5be6\u969b\u64cd\u4f5c"},"content":{"rendered":"<h1 id=\"oracle-%e8%85%b3%e6%9c%ac%e4%b9%8b%e6%9f%a5%e7%9c%8b%e5%a3%93%e7%b8%ae%e8%a1%a8%e6%a0%bc%e5%af%a6%e9%9a%9b%e6%93%8d%e4%bd%9c-WLIWgpfAsh\">Oracle \u8173\u672c\u4e4b\u67e5\u770b\u58d3\u7e2e\u8868\u683c\u5be6\u969b\u64cd\u4f5c<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u58d3\u7e2e\u8868\u683c\u662f\u4e00\u500b\u91cd\u8981\u7684\u6280\u8853\uff0c\u80fd\u5920\u6709\u6548\u5730\u6e1b\u5c11\u5b58\u5132\u7a7a\u9593\u4e26\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002Oracle \u6578\u64da\u5eab\u63d0\u4f9b\u4e86\u591a\u7a2e\u58d3\u7e2e\u9078\u9805\uff0c\u8b93\u7528\u6236\u80fd\u5920\u6839\u64da\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u58d3\u7e2e\u7b56\u7565\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528 Oracle \u8173\u672c\u4f86\u67e5\u770b\u58d3\u7e2e\u8868\u683c\u7684\u5be6\u969b\u64cd\u4f5c\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u793a\u4f8b\u4ee3\u78bc\u4ee5\u4f9b\u53c3\u8003\u3002<\/p>\n<h2 id=\"%e5%a3%93%e7%b8%ae%e8%a1%a8%e6%a0%bc%e7%9a%84%e6%a6%82%e5%bf%b5-WLIWgpfAsh\">\u58d3\u7e2e\u8868\u683c\u7684\u6982\u5ff5<\/h2>\n<p>\u58d3\u7e2e\u8868\u683c\u662f\u6307\u5728\u6578\u64da\u5eab\u4e2d\u5c0d\u8868\u683c\u6578\u64da\u9032\u884c\u58d3\u7e2e\uff0c\u4ee5\u6e1b\u5c11\u6240\u9700\u7684\u5b58\u5132\u7a7a\u9593\u3002Oracle \u63d0\u4f9b\u4e86\u591a\u7a2e\u58d3\u7e2e\u6280\u8853\uff0c\u5305\u62ec\u884c\u58d3\u7e2e\u548c\u5217\u58d3\u7e2e\u3002\u884c\u58d3\u7e2e\u4e3b\u8981\u91dd\u5c0d\u884c\u6578\u64da\u9032\u884c\u58d3\u7e2e\uff0c\u800c\u5217\u58d3\u7e2e\u5247\u91dd\u5c0d\u5217\u6578\u64da\u9032\u884c\u58d3\u7e2e\uff0c\u9019\u5728\u8655\u7406\u5927\u6578\u64da\u96c6\u6642\u7279\u5225\u6709\u6548\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e7%9c%8b%e5%a3%93%e7%b8%ae%e8%a1%a8%e6%a0%bc%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%ad%a5%e9%a9%9f-WLIWgpfAsh\">\u67e5\u770b\u58d3\u7e2e\u8868\u683c\u7684\u57fa\u672c\u6b65\u9a5f<\/h2>\n<p>\u8981\u67e5\u770b Oracle \u6578\u64da\u5eab\u4e2d\u58d3\u7e2e\u8868\u683c\u7684\u72c0\u614b\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u7372\u53d6\u76f8\u95dc\u4fe1\u606f\uff1a<\/p>\n<pre><code>SELECT table_name, compression, compress_for\nFROM user_tables\nWHERE compression = 'ENABLED';<\/code><\/pre>\n<p>\u9019\u6bb5 SQL \u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u555f\u7528\u58d3\u7e2e\u7684\u8868\u683c\u540d\u7a31\u53ca\u5176\u58d3\u7e2e\u985e\u578b\u3002\u9019\u5c0d\u65bc\u7ba1\u7406\u548c\u512a\u5316\u6578\u64da\u5eab\u6027\u80fd\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e7%9c%8b%e5%a3%93%e7%b8%ae%e8%a1%a8%e6%a0%bc%e7%9a%84%e8%a9%b3%e7%b4%b0%e4%bf%a1%e6%81%af-WLIWgpfAsh\">\u67e5\u770b\u58d3\u7e2e\u8868\u683c\u7684\u8a73\u7d30\u4fe1\u606f<\/h2>\n<p>\u9664\u4e86\u57fa\u672c\u7684\u58d3\u7e2e\u72c0\u614b\u5916\uff0c\u9084\u53ef\u4ee5\u67e5\u770b\u58d3\u7e2e\u8868\u683c\u7684\u8a73\u7d30\u4fe1\u606f\uff0c\u4f8b\u5982\u58d3\u7e2e\u6bd4\u7387\u548c\u58d3\u7e2e\u5f8c\u7684\u5927\u5c0f\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u7372\u53d6\u9019\u4e9b\u4fe1\u606f\uff1a<\/p>\n<pre><code>SELECT t.table_name,\n              t.num_rows,\n              t.blocks,\n              t.empty_blocks,\n              t.avg_space,\n              t.chain_cnt,\n              t.compress_for,\n              t.compression,\n              t.compressed_size,\n              t.uncompressed_size\nFROM user_tables t\nWHERE t.compression = 'ENABLED';<\/code><\/pre>\n<p>\u9019\u6bb5\u67e5\u8a62\u5c07\u8fd4\u56de\u6bcf\u500b\u58d3\u7e2e\u8868\u683c\u7684\u884c\u6578\u3001\u584a\u6578\u3001\u7a7a\u584a\u6578\u3001\u5e73\u5747\u7a7a\u9593\u3001\u93c8\u63a5\u8a08\u6578\u3001\u58d3\u7e2e\u985e\u578b\u3001\u58d3\u7e2e\u5927\u5c0f\u548c\u672a\u58d3\u7e2e\u5927\u5c0f\u7b49\u4fe1\u606f\u3002<\/p>\n<h2 id=\"%e5%a3%93%e7%b8%ae%e8%a1%a8%e6%a0%bc%e7%9a%84%e5%84%aa%e5%8b%a2-WLIWgpfAsh\">\u58d3\u7e2e\u8868\u683c\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u7bc0\u7701\u5b58\u5132\u7a7a\u9593\uff1a<\/strong>\u58d3\u7e2e\u8868\u683c\u80fd\u5920\u986f\u8457\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u5b58\u5132\u9700\u6c42\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002<\/li>\n<li><strong>\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff1a<\/strong>\u58d3\u7e2e\u6578\u64da\u53ef\u4ee5\u6e1b\u5c11 I\/O \u64cd\u4f5c\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u7684\u901f\u5ea6\u3002<\/li>\n<li><strong>\u964d\u4f4e\u5099\u4efd\u6642\u9593\uff1a<\/strong>\u58d3\u7e2e\u6578\u64da\u53ef\u4ee5\u6e1b\u5c11\u5099\u4efd\u6240\u9700\u7684\u6642\u9593\u548c\u8cc7\u6e90\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-WLIWgpfAsh\">\u7d50\u8ad6<\/h2>\n<p>\u5728 Oracle \u6578\u64da\u5eab\u4e2d\u67e5\u770b\u58d3\u7e2e\u8868\u683c\u7684\u64cd\u4f5c\u76f8\u5c0d\u7c21\u55ae\uff0c\u901a\u904e SQL \u67e5\u8a62\u53ef\u4ee5\u8f15\u9b06\u7372\u53d6\u6240\u9700\u7684\u4fe1\u606f\u3002\u58d3\u7e2e\u6280\u8853\u4e0d\u50c5\u80fd\u5920\u7bc0\u7701\u5b58\u5132\u7a7a\u9593\uff0c\u9084\u80fd\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u8005\u4f86\u8aaa\uff0c\u4e86\u89e3\u9019\u4e9b\u6280\u8853\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u670d\u52d9\u6709\u8208\u8da3\uff0c\u6216\u60f3\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u6599\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728Oracle\u4e2d\u67e5\u770b\u58d3\u7e2e\u8868\u683c\u7684\u5be6\u969b\u64cd\u4f5c\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u7c21\u5316\u6578\u64da\u67e5\u8a62\u6d41\u7a0b\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-94608","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94608","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=94608"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94608\/revisions"}],"predecessor-version":[{"id":94609,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94608\/revisions\/94609"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=94608"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=94608"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=94608"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}