{"id":152483,"date":"2024-11-01T23:24:20","date_gmt":"2024-11-01T15:24:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/152483\/"},"modified":"2024-11-01T23:24:21","modified_gmt":"2024-11-01T15:24:21","slug":"%e6%9f%a5%e7%9c%8b-oracle-%e7%95%b6%e5%89%8d%e9%80%a3%e6%8e%a5%e6%95%b8%e7%94%a8-sql-%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%af%a6%e9%9a%9b%e6%93%8d%e4%bd%9c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/152483\/","title":{"rendered":"\u67e5\u770b Oracle \u7576\u524d\u9023\u63a5\u6578\u7528 SQL \u8a9e\u53e5\u7684\u5be6\u969b\u64cd\u4f5c"},"content":{"rendered":"<h1 id=\"%e6%9f%a5%e7%9c%8b-oracle-%e7%95%b6%e5%89%8d%e9%80%a3%e6%8e%a5%e6%95%b8%e7%94%a8-sql-%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%af%a6%e9%9a%9b%e6%93%8d%e4%bd%9c-VguGOXuzhr\">\u67e5\u770b Oracle \u7576\u524d\u9023\u63a5\u6578\u7528 SQL \u8a9e\u53e5\u7684\u5be6\u969b\u64cd\u4f5c<\/h1>\n<p>\u5728\u7ba1\u7406 Oracle \u6578\u64da\u5eab\u6642\uff0c\u4e86\u89e3\u7576\u524d\u7684\u9023\u63a5\u6578\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u9019\u4e0d\u50c5\u6709\u52a9\u65bc\u76e3\u63a7\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u9084\u80fd\u5e6b\u52a9\u7ba1\u7406\u54e1\u53ca\u6642\u767c\u73fe\u6f5b\u5728\u7684\u554f\u984c\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528 SQL \u8a9e\u53e5\u4f86\u67e5\u770b Oracle \u6578\u64da\u5eab\u7684\u7576\u524d\u9023\u63a5\u6578\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u969b\u64cd\u4f5c\u7684\u793a\u4f8b\u3002<\/p>\n<h2 id=\"oracle-%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-VguGOXuzhr\">Oracle \u6578\u64da\u5eab\u9023\u63a5\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728 Oracle \u6578\u64da\u5eab\u4e2d\uff0c\u9023\u63a5\u662f\u6307\u7528\u6236\u6216\u61c9\u7528\u7a0b\u5e8f\u8207\u6578\u64da\u5eab\u4e4b\u9593\u7684\u6703\u8a71\u3002\u6bcf\u7576\u7528\u6236\u767b\u9304\u5230\u6578\u64da\u5eab\u6642\uff0c\u7cfb\u7d71\u6703\u70ba\u5176\u5275\u5efa\u4e00\u500b\u9023\u63a5\u3002\u9019\u4e9b\u9023\u63a5\u53ef\u4ee5\u662f\u6301\u4e45\u7684\uff0c\u4e5f\u53ef\u4ee5\u662f\u81e8\u6642\u7684\uff0c\u5177\u9ad4\u53d6\u6c7a\u65bc\u7528\u6236\u7684\u9700\u6c42\u548c\u6578\u64da\u5eab\u7684\u914d\u7f6e\u3002<\/p>\n<p>\u4e86\u89e3\u7576\u524d\u7684\u9023\u63a5\u6578\u53ef\u4ee5\u5e6b\u52a9\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u8a55\u4f30\u7cfb\u7d71\u7684\u8ca0\u8f09\u60c5\u6cc1\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u8abf\u6574\u3002\u4f8b\u5982\uff0c\u5982\u679c\u9023\u63a5\u6578\u63a5\u8fd1\u6700\u5927\u9650\u5236\uff0c\u5247\u53ef\u80fd\u9700\u8981\u589e\u52a0\u8cc7\u6e90\u6216\u512a\u5316\u61c9\u7528\u7a0b\u5e8f\u7684\u9023\u63a5\u7ba1\u7406\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e7%9c%8b%e7%95%b6%e5%89%8d%e9%80%a3%e6%8e%a5%e6%95%b8%e7%9a%84-sql-%e8%aa%9e%e5%8f%a5-VguGOXuzhr\">\u67e5\u770b\u7576\u524d\u9023\u63a5\u6578\u7684 SQL \u8a9e\u53e5<\/h2>\n<p>\u8981\u67e5\u770b Oracle \u6578\u64da\u5eab\u7684\u7576\u524d\u9023\u63a5\u6578\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\uff1a<\/p>\n<pre><code>SELECT COUNT(*) AS current_connections\nFROM v$session\nWHERE status = 'ACTIVE';<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u5f9e <code>v$session<\/code> \u8996\u5716\u4e2d\u8a08\u7b97\u7576\u524d\u6d3b\u52d5\u9023\u63a5\u7684\u6578\u91cf\u3002<code>v$session<\/code> \u662f\u4e00\u500b\u52d5\u614b\u6027\u80fd\u8996\u5716\uff0c\u63d0\u4f9b\u6709\u95dc\u7576\u524d\u6240\u6709\u6703\u8a71\u7684\u4fe1\u606f\u3002<\/p>\n<h3 id=\"%e9%80%b2%e4%b8%80%e6%ad%a5%e5%88%86%e6%9e%90%e9%80%a3%e6%8e%a5%e6%95%b8-VguGOXuzhr\">\u9032\u4e00\u6b65\u5206\u6790\u9023\u63a5\u6578<\/h3>\n<p>\u9664\u4e86\u67e5\u770b\u7576\u524d\u7684\u6d3b\u52d5\u9023\u63a5\u6578\u5916\uff0c\u9084\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\u4f86\u7372\u53d6\u66f4\u8a73\u7d30\u7684\u4fe1\u606f\uff0c\u4f8b\u5982\u6bcf\u500b\u7528\u6236\u7684\u9023\u63a5\u6578\uff1a<\/p>\n<pre><code>SELECT username, COUNT(*) AS connection_count\nFROM v$session\nWHERE status = 'ACTIVE'\nGROUP BY username\nORDER BY connection_count DESC;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u986f\u793a\u6bcf\u500b\u7528\u6236\u7684\u6d3b\u52d5\u9023\u63a5\u6578\uff0c\u4e26\u6309\u9023\u63a5\u6578\u964d\u5e8f\u6392\u5217\u3002\u9019\u5c0d\u65bc\u8b58\u5225\u54ea\u4e9b\u7528\u6236\u6216\u61c9\u7528\u7a0b\u5e8f\u6b63\u5728\u6d88\u8017\u6700\u591a\u7684\u9023\u63a5\u8cc7\u6e90\u975e\u5e38\u6709\u7528\u3002<\/p>\n<h2 id=\"%e7%9b%a3%e6%8e%a7%e9%80%a3%e6%8e%a5%e6%95%b8%e7%9a%84%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-VguGOXuzhr\">\u76e3\u63a7\u9023\u63a5\u6578\u7684\u6700\u4f73\u5be6\u8e10<\/h2>\n<ul>\n<li><strong>\u5b9a\u671f\u6aa2\u67e5\u9023\u63a5\u6578\uff1a<\/strong>\u5efa\u8b70\u5b9a\u671f\u57f7\u884c\u4e0a\u8ff0 SQL \u8a9e\u53e5\uff0c\u4ee5\u4fbf\u53ca\u6642\u4e86\u89e3\u6578\u64da\u5eab\u7684\u9023\u63a5\u72c0\u6cc1\u3002<\/li>\n<li><strong>\u8a2d\u7f6e\u8b66\u5831\uff1a<\/strong>\u53ef\u4ee5\u8003\u616e\u8a2d\u7f6e\u76e3\u63a7\u5de5\u5177\uff0c\u7576\u9023\u63a5\u6578\u9054\u5230\u67d0\u500b\u95be\u503c\u6642\u767c\u9001\u8b66\u5831\uff0c\u4ee5\u4fbf\u53ca\u6642\u8655\u7406\u3002<\/li>\n<li><strong>\u512a\u5316\u61c9\u7528\u7a0b\u5e8f\uff1a<\/strong>\u78ba\u4fdd\u61c9\u7528\u7a0b\u5e8f\u6b63\u78ba\u7ba1\u7406\u6578\u64da\u5eab\u9023\u63a5\uff0c\u4f8b\u5982\u4f7f\u7528\u9023\u63a5\u6c60\u4f86\u6e1b\u5c11\u9023\u63a5\u7684\u958b\u92b7\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-VguGOXuzhr\">\u7d50\u8ad6<\/h2>\n<p>\u901a\u904e\u4f7f\u7528 SQL \u8a9e\u53e5\u67e5\u770b Oracle \u6578\u64da\u5eab\u7684\u7576\u524d\u9023\u63a5\u6578\uff0c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u4ee5\u66f4\u597d\u5730\u76e3\u63a7\u548c\u7ba1\u7406\u7cfb\u7d71\u6027\u80fd\u3002\u4e86\u89e3\u9023\u63a5\u6578\u7684\u8b8a\u5316\u8da8\u52e2\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u8abf\u6574\uff0c\u5c07\u6709\u52a9\u65bc\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u6027\u548c\u9ad8\u6548\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u7528\u6236\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u4f01\u696d\u7d1a\u61c9\u7528\u9084\u662f\u500b\u4eba\u9805\u76ee\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4f7f\u7528 SQL \u8a9e\u53e5\u67e5\u770b Oracle \u6578\u64da\u5eab\u7684\u7576\u524d\u9023\u63a5\u6578\uff0c\u638c\u63e1\u5be6\u969b\u64cd\u4f5c\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\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-152483","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152483","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=152483"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152483\/revisions"}],"predecessor-version":[{"id":152484,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152483\/revisions\/152484"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=152483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=152483"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=152483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}