{"id":95628,"date":"2024-10-20T02:39:17","date_gmt":"2024-10-19T18:39:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95628\/"},"modified":"2024-10-20T02:39:17","modified_gmt":"2024-10-19T18:39:17","slug":"oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e7%b5%b1%e8%a8%88%e6%95%b8%e6%93%9a%e7%9a%84%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95628\/","title":{"rendered":"Oracle\u6578\u64da\u5eab\u7684\u7d71\u8a08\u6578\u64da\u7684\u5be6\u969b\u61c9\u7528"},"content":{"rendered":"<h1 id=\"oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e7%b5%b1%e8%a8%88%e6%95%b8%e6%93%9a%e7%9a%84%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8-lusANloPXo\">Oracle\u6578\u64da\u5eab\u7684\u7d71\u8a08\u6578\u64da\u7684\u5be6\u969b\u61c9\u7528<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u6548\u7387\u5c0d\u65bc\u4f01\u696d\u7684\u6210\u529f\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\u63d0\u4f9b\u4e86\u591a\u7a2e\u5de5\u5177\u548c\u529f\u80fd\u4f86\u5e6b\u52a9\u7528\u6236\u6536\u96c6\u548c\u5206\u6790\u7d71\u8a08\u6578\u64da\u3002\u672c\u6587\u5c07\u63a2\u8a0eOracle\u6578\u64da\u5eab\u7684\u7d71\u8a08\u6578\u64da\u7684\u5be6\u969b\u61c9\u7528\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5177\u9ad4\u7684\u4f8b\u5b50\u548c\u4ee3\u78bc\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%aforacle%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e7%b5%b1%e8%a8%88%e6%95%b8%e6%93%9a%ef%bc%9f-lusANloPXo\">\u4ec0\u9ebc\u662fOracle\u6578\u64da\u5eab\u7684\u7d71\u8a08\u6578\u64da\uff1f<\/h2>\n<p>Oracle\u6578\u64da\u5eab\u7684\u7d71\u8a08\u6578\u64da\u662f\u95dc\u65bc\u6578\u64da\u5eab\u5c0d\u8c61\uff08\u5982\u8868\u3001\u7d22\u5f15\u548c\u5206\u5340\uff09\u7684\u4fe1\u606f\uff0c\u9019\u4e9b\u4fe1\u606f\u5e6b\u52a9\u6578\u64da\u5eab\u512a\u5316\u5668\u505a\u51fa\u66f4\u597d\u7684\u67e5\u8a62\u57f7\u884c\u8a08\u5283\u3002\u9019\u4e9b\u7d71\u8a08\u6578\u64da\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u8868\u7684\u884c\u6578\u548c\u5b57\u7bc0\u6578<\/li>\n<li>\u5217\u7684\u57fa\u6578\uff08\u552f\u4e00\u503c\u7684\u6578\u91cf\uff09<\/li>\n<li>\u7d22\u5f15\u7684\u9078\u64c7\u6027<\/li>\n<li>\u6578\u64da\u5206\u4f48\u7684\u7d71\u8a08\u4fe1\u606f<\/li>\n<\/ul>\n<p>\u9019\u4e9b\u7d71\u8a08\u6578\u64da\u7684\u6e96\u78ba\u6027\u76f4\u63a5\u5f71\u97ff\u67e5\u8a62\u6027\u80fd\uff0c\u56e0\u6b64\u5b9a\u671f\u6536\u96c6\u548c\u66f4\u65b0\u9019\u4e9b\u7d71\u8a08\u6578\u64da\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<h2 id=\"%e7%b5%b1%e8%a8%88%e6%95%b8%e6%93%9a%e7%9a%84%e6%94%b6%e9%9b%86%e6%96%b9%e6%b3%95-lusANloPXo\">\u7d71\u8a08\u6578\u64da\u7684\u6536\u96c6\u65b9\u6cd5<\/h2>\n<p>Oracle\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u6536\u96c6\u7d71\u8a08\u6578\u64da\uff0c\u6700\u5e38\u7528\u7684\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>DBMS_STATS<\/code>\u5305\uff1a\u9019\u662f\u4e00\u500b\u5167\u5efa\u7684PL\/SQL\u5305\uff0c\u7528\u65bc\u6536\u96c6\u548c\u7ba1\u7406\u7d71\u8a08\u6578\u64da\u3002<\/li>\n<li>\u81ea\u52d5\u7d71\u8a08\u6536\u96c6\uff1aOracle\u6578\u64da\u5eab\u53ef\u4ee5\u914d\u7f6e\u70ba\u81ea\u52d5\u6536\u96c6\u7d71\u8a08\u6578\u64da\uff0c\u9019\u6a23\u7528\u6236\u7121\u9700\u624b\u52d5\u5e72\u9810\u3002<\/li>\n<\/ul>\n<h3 id=\"%e4%bd%bf%e7%94%a8dbms_stats%e6%94%b6%e9%9b%86%e7%b5%b1%e8%a8%88%e6%95%b8%e6%93%9a-lusANloPXo\">\u4f7f\u7528DBMS_STATS\u6536\u96c6\u7d71\u8a08\u6578\u64da<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528<code>DBMS_STATS<\/code>\u5305\u6536\u96c6\u8868\u7d71\u8a08\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>BEGIN\n    DBMS_STATS.GATHER_TABLE_STATS(\n        ownname =&gt; 'YOUR_SCHEMA',\n        tabname =&gt; 'YOUR_TABLE',\n        estimate_percent =&gt; 100,\n        cascade =&gt; TRUE\n    );\nEND;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c<code>GATHER_TABLE_STATS<\/code>\u904e\u7a0b\u5c07\u6536\u96c6\u6307\u5b9a\u8868\u7684\u7d71\u8a08\u6578\u64da\uff0c\u4e26\u4e14<code>estimate_percent<\/code>\u53c3\u6578\u8a2d\u7f6e\u70ba100\uff0c\u8868\u793a\u6536\u96c6\u6240\u6709\u884c\u7684\u7d71\u8a08\u6578\u64da\u3002<\/p>\n<h2 id=\"%e7%b5%b1%e8%a8%88%e6%95%b8%e6%93%9a%e7%9a%84%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8-lusANloPXo\">\u7d71\u8a08\u6578\u64da\u7684\u5be6\u969b\u61c9\u7528<\/h2>\n<p>\u7d71\u8a08\u6578\u64da\u5728\u591a\u500b\u65b9\u9762\u5c0dOracle\u6578\u64da\u5eab\u7684\u6027\u80fd\u512a\u5316\u81f3\u95dc\u91cd\u8981\uff1a<\/p>\n<h3 id=\"%e6%9f%a5%e8%a9%a2%e5%84%aa%e5%8c%96-lusANloPXo\">\u67e5\u8a62\u512a\u5316<\/h3>\n<p>\u7576\u7528\u6236\u57f7\u884c\u67e5\u8a62\u6642\uff0cOracle\u512a\u5316\u5668\u6703\u4f7f\u7528\u7d71\u8a08\u6578\u64da\u4f86\u9078\u64c7\u6700\u4f73\u7684\u57f7\u884c\u8a08\u5283\u3002\u4f8b\u5982\uff0c\u7576\u67e5\u8a62\u6d89\u53ca\u591a\u500b\u8868\u7684\u806f\u63a5\u6642\uff0c\u512a\u5316\u5668\u6703\u6839\u64da\u8868\u7684\u884c\u6578\u548c\u7d22\u5f15\u7684\u9078\u64c7\u6027\u4f86\u6c7a\u5b9a\u806f\u63a5\u7684\u9806\u5e8f\u548c\u65b9\u6cd5\u3002<\/p>\n<h3 id=\"%e6%80%a7%e8%83%bd%e7%9b%a3%e6%8e%a7-lusANloPXo\">\u6027\u80fd\u76e3\u63a7<\/h3>\n<p>\u901a\u904e\u5206\u6790\u7d71\u8a08\u6578\u64da\uff0c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u4ee5\u8b58\u5225\u6027\u80fd\u74f6\u9838\u3002\u4f8b\u5982\uff0c\u5982\u679c\u67d0\u500b\u8868\u7684\u884c\u6578\u6025\u5287\u589e\u52a0\uff0c\u800c\u7d71\u8a08\u6578\u64da\u672a\u53ca\u6642\u66f4\u65b0\uff0c\u5247\u53ef\u80fd\u5c0e\u81f4\u67e5\u8a62\u6027\u80fd\u4e0b\u964d\u3002\u5b9a\u671f\u6aa2\u67e5\u548c\u66f4\u65b0\u7d71\u8a08\u6578\u64da\u53ef\u4ee5\u5e6b\u52a9\u4fdd\u6301\u6578\u64da\u5eab\u7684\u9ad8\u6548\u904b\u884c\u3002<\/p>\n<h3 id=\"%e8%87%aa%e5%8b%95%e5%8c%96%e7%b6%ad%e8%ad%b7-lusANloPXo\">\u81ea\u52d5\u5316\u7dad\u8b77<\/h3>\n<p>\u8a31\u591a\u4f01\u696d\u9078\u64c7\u81ea\u52d5\u5316\u7d71\u8a08\u6578\u64da\u7684\u6536\u96c6\u548c\u66f4\u65b0\u904e\u7a0b\uff0c\u4ee5\u6e1b\u5c11\u4eba\u5de5\u5e72\u9810\u548c\u932f\u8aa4\u3002\u901a\u904e\u8a2d\u7f6e\u81ea\u52d5\u7d71\u8a08\u6536\u96c6\u4efb\u52d9\uff0c\u6578\u64da\u5eab\u53ef\u4ee5\u5728\u4f4e\u5cf0\u6642\u6bb5\u81ea\u52d5\u66f4\u65b0\u7d71\u8a08\u6578\u64da\uff0c\u5f9e\u800c\u4e0d\u5f71\u97ff\u6b63\u5e38\u696d\u52d9\u904b\u884c\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-lusANloPXo\">\u7d50\u8ad6<\/h2>\n<p>Oracle\u6578\u64da\u5eab\u7684\u7d71\u8a08\u6578\u64da\u5728\u67e5\u8a62\u512a\u5316\u3001\u6027\u80fd\u76e3\u63a7\u548c\u81ea\u52d5\u5316\u7dad\u8b77\u7b49\u65b9\u9762\u767c\u63ee\u8457\u91cd\u8981\u4f5c\u7528\u3002\u901a\u904e\u6b63\u78ba\u5730\u6536\u96c6\u548c\u7ba1\u7406\u9019\u4e9b\u7d71\u8a08\u6578\u64da\uff0c\u4f01\u696d\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u6548\u7387\u3002\u5c0d\u65bc\u5e0c\u671b\u5728\u9999\u6e2f\u5c0b\u627e\u9ad8\u6548\u80fd\u89e3\u6c7a\u65b9\u6848\u7684\u4f01\u696d\uff0c\u4e86\u89e3\u548c\u61c9\u7528Oracle\u6578\u64da\u5eab\u7684\u7d71\u8a08\u6578\u64da\u5c07\u662f\u63d0\u5347\u696d\u52d9\u904b\u71df\u7684\u91cd\u8981\u4e00\u6b65\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc<code>VPS<\/code>\u3001<code>\u9999\u6e2fVPS<\/code>\u53ca\u5176\u4ed6<code>\u4e91\u670d\u52a1\u5668<\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Oracle\u6578\u64da\u5eab\u7d71\u8a08\u6578\u64da\u7684\u5be6\u969b\u61c9\u7528\uff0c\u63d0\u5347\u67e5\u8a62\u6027\u80fd\u3001\u512a\u5316\u8cc7\u6e90\u914d\u7f6e\uff0c\u52a9\u529b\u6578\u64da\u9a45\u52d5\u6c7a\u7b56\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-95628","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95628","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=95628"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95628\/revisions"}],"predecessor-version":[{"id":95629,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95628\/revisions\/95629"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95628"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}