{"id":173389,"date":"2024-11-07T17:37:21","date_gmt":"2024-11-07T09:37:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/173389\/"},"modified":"2024-11-07T17:37:22","modified_gmt":"2024-11-07T09:37:22","slug":"%e5%a6%82%e4%bd%95%e9%ab%98%e6%95%88%e6%b8%85%e7%90%86oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b7%a9%e5%ad%98-oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b7%a9%e5%ad%98%e6%b8%85%e7%90%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/173389\/","title":{"rendered":"\u5982\u4f55\u9ad8\u6548\u6e05\u7406Oracle\u6578\u64da\u5eab\u7de9\u5b58 (oracle\u6578\u64da\u5eab\u7de9\u5b58\u6e05\u7406)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e9%ab%98%e6%95%88%e6%b8%85%e7%90%86oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b7%a9%e5%ad%98-EzQbWNwzOV\">\u5982\u4f55\u9ad8\u6548\u6e05\u7406Oracle\u6578\u64da\u5eab\u7de9\u5b58<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u7de9\u5b58\u7684\u6709\u6548\u7ba1\u7406\u5c0d\u65bc\u7cfb\u7d71\u6027\u80fd\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\u7de9\u5b58\u6a5f\u5236\u4f86\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u548c\u6578\u64da\u5b58\u53d6\u901f\u5ea6\u3002\u7136\u800c\uff0c\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\uff0c\u9019\u4e9b\u7de9\u5b58\u53ef\u80fd\u6703\u8b8a\u5f97\u81c3\u816b\uff0c\u5f71\u97ff\u6574\u9ad4\u6027\u80fd\u3002\u56e0\u6b64\uff0c\u5b9a\u671f\u6e05\u7406Oracle\u6578\u64da\u5eab\u7684\u7de9\u5b58\u662f\u5fc5\u8981\u7684\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u9ad8\u6548\u6e05\u7406Oracle\u6578\u64da\u5eab\u7de9\u5b58\u3002<\/p>\n<h2 id=\"%e4%ba%86%e8%a7%a3oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b7%a9%e5%ad%98-EzQbWNwzOV\">\u4e86\u89e3Oracle\u6578\u64da\u5eab\u7de9\u5b58<\/h2>\n<p>Oracle\u6578\u64da\u5eab\u7684\u7de9\u5b58\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u90e8\u5206\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u7de9\u5b58\uff08Buffer Cache\uff09<\/strong>\uff1a\u7528\u65bc\u5b58\u5132\u6700\u8fd1\u8a2a\u554f\u7684\u6578\u64da\u584a\uff0c\u4ee5\u6e1b\u5c11\u78c1\u789fI\/O\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u5171\u4eab\u6c60\uff08Shared Pool\uff09<\/strong>\uff1a\u7528\u65bc\u5b58\u5132SQL\u8a9e\u53e5\u3001PL\/SQL\u7a0b\u5e8f\u548c\u6578\u64da\u5b57\u5178\u4fe1\u606f\u3002<\/li>\n<li><strong>Java\u6c60\uff08Java Pool\uff09<\/strong>\uff1a\u7528\u65bc\u5b58\u5132Java\u5c0d\u8c61\u548c\u4ee3\u78bc\u3002<\/li>\n<li><strong>\u5927\u578b\u6c60\uff08Large Pool\uff09<\/strong>\uff1a\u7528\u65bc\u652f\u6301\u5927\u898f\u6a21\u7684\u6578\u64da\u64cd\u4f5c\uff0c\u5982\u5099\u4efd\u548c\u6062\u5fa9\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e6%b8%85%e7%90%86%e7%b7%a9%e5%ad%98-EzQbWNwzOV\">\u70ba\u4ec0\u9ebc\u9700\u8981\u6e05\u7406\u7de9\u5b58<\/h2>\n<p>\u96a8\u8457\u6578\u64da\u5eab\u7684\u904b\u884c\uff0c\u7de9\u5b58\u4e2d\u53ef\u80fd\u6703\u7a4d\u7d2f\u904e\u591a\u7684\u7121\u7528\u6578\u64da\uff0c\u9019\u6703\u5c0e\u81f4\u4ee5\u4e0b\u554f\u984c\uff1a<\/p>\n<ul>\n<li>\u6027\u80fd\u4e0b\u964d\uff1a\u904e\u591a\u7684\u7121\u7528\u6578\u64da\u6703\u589e\u52a0\u67e5\u8a62\u7684\u5ef6\u9072\u3002<\/li>\n<li>\u5167\u5b58\u6d6a\u8cbb\uff1a\u7de9\u5b58\u4f54\u7528\u7684\u5167\u5b58\u8cc7\u6e90\u7121\u6cd5\u88ab\u6709\u6548\u5229\u7528\u3002<\/li>\n<li>\u6578\u64da\u4e0d\u4e00\u81f4\uff1a\u820a\u7684\u7de9\u5b58\u6578\u64da\u53ef\u80fd\u6703\u5c0e\u81f4\u67e5\u8a62\u7d50\u679c\u4e0d\u6e96\u78ba\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b8%85%e7%90%86oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b7%a9%e5%ad%98%e7%9a%84%e6%96%b9%e6%b3%95-EzQbWNwzOV\">\u6e05\u7406Oracle\u6578\u64da\u5eab\u7de9\u5b58\u7684\u65b9\u6cd5<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8dbms_shared_pool%e5%8c%85-EzQbWNwzOV\">1. \u4f7f\u7528DBMS_SHARED_POOL\u5305<\/h3>\n<p>\u5c0d\u65bc\u5171\u4eab\u6c60\u7684\u6e05\u7406\uff0c\u53ef\u4ee5\u4f7f\u7528Oracle\u63d0\u4f9b\u7684DBMS_SHARED_POOL\u5305\u3002\u4ee5\u4e0b\u662f\u6e05\u7406\u5171\u4eab\u6c60\u7684\u793a\u4f8b\u4ee3\u78bc\uff1a<\/p>\n<pre><code>BEGIN\n    DBMS_SHARED_POOL.PURGE('object_name', 'object_type');\nEND;<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c&#8217;object_name&#8217;\u662f\u8981\u6e05\u7406\u7684\u5c0d\u8c61\u540d\u7a31\uff0c&#8217;object_type&#8217;\u53ef\u4ee5\u662f&#8217;procedure&#8217;\u3001&#8217;function&#8217;\u7b49\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8alter-system%e5%91%bd%e4%bb%a4-EzQbWNwzOV\">2. \u4f7f\u7528ALTER SYSTEM\u547d\u4ee4<\/h3>\n<p>\u5c0d\u65bc\u6578\u64da\u7de9\u5b58\u7684\u6e05\u7406\uff0c\u53ef\u4ee5\u4f7f\u7528ALTER SYSTEM\u547d\u4ee4\u4f86\u6e05\u9664\u7de9\u5b58\u4e2d\u7684\u7279\u5b9a\u6578\u64da\u584a\uff1a<\/p>\n<pre><code>ALTER SYSTEM FLUSH BUFFER_CACHE;<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u6703\u6e05\u7a7a\u6574\u500b\u6578\u64da\u7de9\u5b58\uff0c\u9069\u5408\u5728\u9032\u884c\u5927\u898f\u6a21\u6578\u64da\u66f4\u65b0\u5f8c\u4f7f\u7528\u3002<\/p>\n<h3 id=\"3-%e5%ae%9a%e6%9c%9f%e7%9b%a3%e6%8e%a7%e5%92%8c%e8%aa%bf%e6%95%b4-EzQbWNwzOV\">3. \u5b9a\u671f\u76e3\u63a7\u548c\u8abf\u6574<\/h3>\n<p>\u9664\u4e86\u624b\u52d5\u6e05\u7406\u5916\uff0c\u5b9a\u671f\u76e3\u63a7\u7de9\u5b58\u7684\u4f7f\u7528\u60c5\u6cc1\u4e5f\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u6aa2\u67e5\u7de9\u5b58\u7684\u4f7f\u7528\u60c5\u6cc1\uff1a<\/p>\n<pre><code>SELECT * FROM V$DB_CACHE_ADVICE;<\/code><\/pre>\n<p>\u6839\u64da\u67e5\u8a62\u7d50\u679c\uff0c\u8abf\u6574\u7de9\u5b58\u7684\u5927\u5c0f\u548c\u914d\u7f6e\uff0c\u4ee5\u9054\u5230\u6700\u4f73\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-EzQbWNwzOV\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<ul>\n<li>\u5b9a\u671f\u6aa2\u67e5\u7de9\u5b58\u4f7f\u7528\u60c5\u6cc1\uff0c\u6839\u64da\u5be6\u969b\u9700\u6c42\u9032\u884c\u8abf\u6574\u3002<\/li>\n<li>\u5728\u9ad8\u5cf0\u671f\u524d\u5f8c\u9032\u884c\u7de9\u5b58\u6e05\u7406\uff0c\u4ee5\u6e1b\u5c11\u5c0d\u696d\u52d9\u7684\u5f71\u97ff\u3002<\/li>\n<li>\u4f7f\u7528\u81ea\u52d5\u5316\u5de5\u5177\u4f86\u76e3\u63a7\u548c\u6e05\u7406\u7de9\u5b58\uff0c\u6e1b\u5c11\u4eba\u5de5\u5e72\u9810\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-EzQbWNwzOV\">\u7e3d\u7d50<\/h2>\n<p>\u9ad8\u6548\u6e05\u7406Oracle\u6578\u64da\u5eab\u7de9\u5b58\u662f\u78ba\u4fdd\u7cfb\u7d71\u6027\u80fd\u7684\u95dc\u9375\u3002\u901a\u904e\u4f7f\u7528DBMS_SHARED_POOL\u5305\u3001ALTER SYSTEM\u547d\u4ee4\u4ee5\u53ca\u5b9a\u671f\u76e3\u63a7\uff0c\u7ba1\u7406\u54e1\u53ef\u4ee5\u6709\u6548\u5730\u7dad\u8b77\u6578\u64da\u5eab\u7684\u5065\u5eb7\u72c0\u614b\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u904b\u884c\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684<a href=\"https:\/\/server.hk\">VPS<\/a>\u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u4e86\u89e3\u5982\u4f55\u7ba1\u7406\u548c\u6e05\u7406\u7de9\u5b58\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6574\u9ad4\u7cfb\u7d71\u6027\u80fd\uff0c\u78ba\u4fdd\u696d\u52d9\u7684\u9806\u5229\u904b\u884c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u9ad8\u6548\u6e05\u7406Oracle\u6578\u64da\u5eab\u7de9\u5b58\uff0c\u63d0\u5347\u6027\u80fd\uff0c\u512a\u5316\u8cc7\u6e90\u4f7f\u7528\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u904b\u884c\u6d41\u66a2\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-173389","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173389","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=173389"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173389\/revisions"}],"predecessor-version":[{"id":173390,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173389\/revisions\/173390"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=173389"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=173389"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=173389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}