{"id":95374,"date":"2024-10-20T00:31:18","date_gmt":"2024-10-19T16:31:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95374\/"},"modified":"2024-10-20T00:31:18","modified_gmt":"2024-10-19T16:31:18","slug":"oracle%e4%bd%bf%e7%94%a8%e4%b8%a6%e8%a1%8c%e8%b8%a9%e9%81%8e%e7%9a%84%e5%9d%91","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95374\/","title":{"rendered":"Oracle\u4f7f\u7528\u4e26\u884c\u8e29\u904e\u7684\u5751"},"content":{"rendered":"<h1 id=\"oracle%e4%bd%bf%e7%94%a8%e4%b8%a6%e8%a1%8c%e8%b8%a9%e9%81%8e%e7%9a%84%e5%9d%91-FIybsPGWQW\">Oracle\u4f7f\u7528\u4e26\u884c\u8e29\u904e\u7684\u5751<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cOracle\u7684\u4e26\u884c\u8655\u7406\u529f\u80fd\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u548c\u6578\u64da\u8655\u7406\u901f\u5ea6\u3002\u7136\u800c\uff0c\u4f7f\u7528\u4e26\u884c\u8655\u7406\u6642\uff0c\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u5e38\u5e38\u6703\u9047\u5230\u4e00\u4e9b\u6311\u6230\u548c\u9677\u9631\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5728\u4f7f\u7528Oracle\u4e26\u884c\u8655\u7406\u6642\u53ef\u80fd\u8e29\u904e\u7684\u5751\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u89e3\u6c7a\u65b9\u6848\u548c\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h2 id=\"1-%e4%b8%8d%e7%95%b6%e7%9a%84%e4%b8%a6%e8%a1%8c%e5%ba%a6%e8%a8%ad%e7%bd%ae-FIybsPGWQW\">1. \u4e0d\u7576\u7684\u4e26\u884c\u5ea6\u8a2d\u7f6e<\/h2>\n<p>\u5728Oracle\u4e2d\uff0c\u4e26\u884c\u5ea6\u7684\u8a2d\u7f6e\u5c0d\u6027\u80fd\u5f71\u97ff\u5de8\u5927\u3002\u904e\u9ad8\u7684\u4e26\u884c\u5ea6\u53ef\u80fd\u5c0e\u81f4\u8cc7\u6e90\u7af6\u722d\uff0c\u53cd\u800c\u964d\u4f4e\u6027\u80fd\u3002\u76f8\u53cd\uff0c\u904e\u4f4e\u7684\u4e26\u884c\u5ea6\u5247\u7121\u6cd5\u5145\u5206\u5229\u7528\u7cfb\u7d71\u8cc7\u6e90\u3002\u6700\u4f73\u5be6\u8e10\u662f\u6839\u64da\u5177\u9ad4\u7684\u67e5\u8a62\u548c\u7cfb\u7d71\u8cc7\u6e90\u4f86\u8abf\u6574\u4e26\u884c\u5ea6\u3002<\/p>\n<pre><code>ALTER SESSION ENABLE PARALLEL DML;\nALTER SESSION FORCE PARALLEL DML;\n<\/code><\/pre>\n<p>\u5728\u9032\u884c\u5927\u898f\u6a21\u6578\u64da\u63d2\u5165\u6216\u66f4\u65b0\u6642\uff0c\u4f7f\u7528\u4e0a\u8ff0\u547d\u4ee4\u53ef\u4ee5\u555f\u7528\u4e26\u884cDML\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u3002\u4f46\u9700\u6ce8\u610f\uff0c\u4e26\u884c\u5ea6\u7684\u8a2d\u7f6e\u61c9\u6839\u64da\u5be6\u969b\u60c5\u6cc1\u9032\u884c\u8abf\u6574\u3002<\/p>\n<h2 id=\"2-%e9%8e%96%e5%ae%9a%e5%95%8f%e9%a1%8c-FIybsPGWQW\">2. \u9396\u5b9a\u554f\u984c<\/h2>\n<p>\u4e26\u884c\u8655\u7406\u53ef\u80fd\u5c0e\u81f4\u9396\u5b9a\u554f\u984c\uff0c\u7279\u5225\u662f\u5728\u591a\u500b\u6703\u8a71\u540c\u6642\u5617\u8a66\u8a2a\u554f\u76f8\u540c\u7684\u6578\u64da\u6642\u3002\u9019\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\uff0c\u751a\u81f3\u51fa\u73fe\u6b7b\u9396\u60c5\u6cc1\u3002\u70ba\u4e86\u6e1b\u5c11\u9396\u5b9a\u554f\u984c\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u884c\u7d1a\u9396\u800c\u975e\u8868\u7d1a\u9396\u3002<\/li>\n<li>\u512a\u5316\u67e5\u8a62\u4ee5\u6e1b\u5c11\u5c0d\u540c\u4e00\u6578\u64da\u7684\u7af6\u722d\u3002<\/li>\n<li>\u5b9a\u671f\u6aa2\u67e5\u548c\u6e05\u7406\u9396\u5b9a\u60c5\u6cc1\u3002<\/li>\n<\/ul>\n<h2 id=\"3-%e4%b8%8d%e7%95%b6%e7%9a%84%e6%9f%a5%e8%a9%a2%e8%a8%ad%e8%a8%88-FIybsPGWQW\">3. \u4e0d\u7576\u7684\u67e5\u8a62\u8a2d\u8a08<\/h2>\n<p>\u5728\u4f7f\u7528\u4e26\u884c\u8655\u7406\u6642\uff0c\u67e5\u8a62\u7684\u8a2d\u8a08\u81f3\u95dc\u91cd\u8981\u3002\u4e0d\u7576\u7684\u67e5\u8a62\u8a2d\u8a08\u53ef\u80fd\u5c0e\u81f4\u6027\u80fd\u74f6\u9838\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u4e0d\u5fc5\u8981\u7684\u5b50\u67e5\u8a62\u6216\u904e\u65bc\u8907\u96dc\u7684JOIN\u64cd\u4f5c\u90fd\u53ef\u80fd\u5f71\u97ff\u4e26\u884c\u8655\u7406\u7684\u6548\u679c\u3002\u5efa\u8b70\u9075\u5faa\u4ee5\u4e0b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li>\u7c21\u5316\u67e5\u8a62\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8a08\u7b97\u3002<\/li>\n<li>\u4f7f\u7528\u7d22\u5f15\u4f86\u52a0\u901f\u67e5\u8a62\u3002<\/li>\n<li>\u5b9a\u671f\u5206\u6790\u67e5\u8a62\u8a08\u5283\uff0c\u78ba\u4fdd\u6700\u4f73\u57f7\u884c\u8def\u5f91\u3002<\/li>\n<\/ul>\n<h2 id=\"4-%e8%b3%87%e6%ba%90%e9%85%8d%e7%bd%ae%e4%b8%8d%e8%b6%b3-FIybsPGWQW\">4. \u8cc7\u6e90\u914d\u7f6e\u4e0d\u8db3<\/h2>\n<p>\u4e26\u884c\u8655\u7406\u9700\u8981\u8db3\u5920\u7684\u7cfb\u7d71\u8cc7\u6e90\uff0c\u5305\u62ecCPU\u3001\u5167\u5b58\u548cI\/O\u5e36\u5bec\u3002\u5982\u679c\u7cfb\u7d71\u8cc7\u6e90\u4e0d\u8db3\uff0c\u4e26\u884c\u8655\u7406\u7684\u6548\u679c\u5c07\u5927\u6253\u6298\u6263\u3002\u5efa\u8b70\u5728\u9032\u884c\u4e26\u884c\u8655\u7406\u4e4b\u524d\uff0c\u6aa2\u67e5\u7cfb\u7d71\u8cc7\u6e90\u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u64f4\u5c55\u3002<\/p>\n<pre><code>SELECT * FROM v$resource_limit;\n<\/code><\/pre>\n<p>\u901a\u904e\u67e5\u8a62\u7cfb\u7d71\u8cc7\u6e90\u9650\u5236\uff0c\u53ef\u4ee5\u4e86\u89e3\u7576\u524d\u8cc7\u6e90\u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u5f9e\u800c\u505a\u51fa\u76f8\u61c9\u7684\u8abf\u6574\u3002<\/p>\n<h2 id=\"5-%e7%9b%a3%e6%8e%a7%e5%92%8c%e8%aa%bf%e8%a9%a6-FIybsPGWQW\">5. \u76e3\u63a7\u548c\u8abf\u8a66<\/h2>\n<p>\u5728\u4f7f\u7528\u4e26\u884c\u8655\u7406\u6642\uff0c\u76e3\u63a7\u548c\u8abf\u8a66\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002Oracle\u63d0\u4f9b\u4e86\u591a\u7a2e\u5de5\u5177\u4f86\u5e6b\u52a9\u76e3\u63a7\u4e26\u884c\u67e5\u8a62\u7684\u6027\u80fd\uff0c\u4f8b\u5982AWR\u5831\u544a\u548cASH\u5831\u544a\u3002\u9019\u4e9b\u5de5\u5177\u53ef\u4ee5\u5e6b\u52a9\u8b58\u5225\u6027\u80fd\u74f6\u9838\uff0c\u4e26\u63d0\u4f9b\u512a\u5316\u5efa\u8b70\u3002<\/p>\n<pre><code>SELECT * FROM dba_hist_active_sess_history WHERE session_id = &lt;session_id&gt;;\n<\/code><\/pre>\n<p>\u901a\u904e\u67e5\u8a62\u6d3b\u8e8d\u6703\u8a71\u6b77\u53f2\uff0c\u53ef\u4ee5\u7372\u5f97\u6709\u95dc\u7576\u524d\u6703\u8a71\u7684\u8a73\u7d30\u4fe1\u606f\uff0c\u5f9e\u800c\u9032\u884c\u91dd\u5c0d\u6027\u7684\u8abf\u6574\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-FIybsPGWQW\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u4f7f\u7528Oracle\u7684\u4e26\u884c\u8655\u7406\u529f\u80fd\u6642\uff0c\u4e86\u89e3\u53ef\u80fd\u9047\u5230\u7684\u6311\u6230\u548c\u9677\u9631\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u901a\u904e\u5408\u7406\u8a2d\u7f6e\u4e26\u884c\u5ea6\u3001\u512a\u5316\u67e5\u8a62\u8a2d\u8a08\u3001\u78ba\u4fdd\u8cc7\u6e90\u914d\u7f6e\u5145\u8db3\u4ee5\u53ca\u9032\u884c\u6709\u6548\u7684\u76e3\u63a7\u548c\u8abf\u8a66\uff0c\u53ef\u4ee5\u6700\u5927\u9650\u5ea6\u5730\u63d0\u9ad8\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u5be6\u73fe\u6700\u4f73\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Oracle\u4f7f\u7528\u4e26\u884c\u8655\u7406\u7684\u5e38\u898b\u554f\u984c\u8207\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u60a8\u907f\u514d\u8e29\u904e\u7684\u5751\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u8207\u6548\u7387\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-95374","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95374","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=95374"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95374\/revisions"}],"predecessor-version":[{"id":95375,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95374\/revisions\/95375"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95374"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95374"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95374"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}