{"id":171457,"date":"2024-11-07T02:54:17","date_gmt":"2024-11-06T18:54:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/171457\/"},"modified":"2024-11-07T02:54:18","modified_gmt":"2024-11-06T18:54:18","slug":"%e6%b7%ba%e6%9e%90oracle%e9%8e%96%e7%9a%84%e7%a8%ae%e9%a1%9e%e5%8a%83%e5%88%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/171457\/","title":{"rendered":"\u6dfa\u6790ORACLE\u9396\u7684\u7a2e\u985e\u5283\u5206"},"content":{"rendered":"<h1 id=\"%e6%b7%ba%e6%9e%90oracle%e9%8e%96%e7%9a%84%e7%a8%ae%e9%a1%9e%e5%8a%83%e5%88%86-vEJDyEqawM\">\u6dfa\u6790ORACLE\u9396\u7684\u7a2e\u985e\u5283\u5206<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u9396\u7684\u6a5f\u5236\u662f\u78ba\u4fdd\u8cc7\u6599\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u7684\u91cd\u8981\u624b\u6bb5\u3002Oracle\u8cc7\u6599\u5eab\u4f5c\u70ba\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u95dc\u806f\u578b\u8cc7\u6599\u5eab\u7cfb\u7d71\uff0c\u5176\u9396\u7684\u7a2e\u985e\u548c\u7ba1\u7406\u65b9\u5f0f\u5c0d\u65bc\u958b\u767c\u8005\u548c\u8cc7\u6599\u5eab\u7ba1\u7406\u54e1\u4f86\u8aaa\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u5c0dOracle\u9396\u7684\u7a2e\u985e\u9032\u884c\u5283\u5206\uff0c\u4e26\u63a2\u8a0e\u5176\u7279\u9ede\u53ca\u61c9\u7528\u5834\u666f\u3002<\/p>\n<h2 id=\"1-%e9%8e%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-vEJDyEqawM\">1. \u9396\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u9396\u662f\u7528\u4f86\u63a7\u5236\u5c0d\u8cc7\u6599\u5eab\u8cc7\u6e90\u7684\u8a2a\u554f\uff0c\u4ee5\u9632\u6b62\u591a\u500b\u7528\u6236\u540c\u6642\u4fee\u6539\u76f8\u540c\u7684\u8cc7\u6599\u800c\u5c0e\u81f4\u8cc7\u6599\u4e0d\u4e00\u81f4\u3002Oracle\u8cc7\u6599\u5eab\u4e2d\uff0c\u9396\u7684\u985e\u578b\u4e3b\u8981\u5206\u70ba\u5169\u5927\u985e\uff1a\u884c\u7d1a\u9396\u548c\u8868\u7d1a\u9396\u3002<\/p>\n<h2 id=\"2-%e9%8e%96%e7%9a%84%e7%a8%ae%e9%a1%9e-vEJDyEqawM\">2. \u9396\u7684\u7a2e\u985e<\/h2>\n<h3 id=\"2-1-%e8%a1%8c%e7%b4%9a%e9%8e%96-vEJDyEqawM\">2.1 \u884c\u7d1a\u9396<\/h3>\n<p>\u884c\u7d1a\u9396\u662f\u6307\u5c0d\u8cc7\u6599\u8868\u4e2d\u7684\u67d0\u4e00\u884c\u9032\u884c\u9396\u5b9a\uff0c\u9019\u6a23\u5176\u4ed6\u4e8b\u52d9\u53ef\u4ee5\u8a2a\u554f\u540c\u4e00\u8868\u4e2d\u7684\u5176\u4ed6\u884c\u3002\u884c\u7d1a\u9396\u7684\u512a\u9ede\u5728\u65bc\u5b83\u80fd\u5920\u63d0\u9ad8\u4e26\u767c\u6027\uff0c\u56e0\u70ba\u591a\u500b\u4e8b\u52d9\u53ef\u4ee5\u540c\u6642\u64cd\u4f5c\u4e0d\u540c\u7684\u884c\u3002<\/p>\n<ul>\n<li><strong>\u5171\u4eab\u9396\uff08Share Lock\uff09<\/strong>: \u5141\u8a31\u591a\u500b\u4e8b\u52d9\u540c\u6642\u8b80\u53d6\u8cc7\u6599\uff0c\u4f46\u4e0d\u5141\u8a31\u4fee\u6539\u3002\u7576\u4e00\u500b\u4e8b\u52d9\u6301\u6709\u5171\u4eab\u9396\u6642\uff0c\u5176\u4ed6\u4e8b\u52d9\u4e5f\u53ef\u4ee5\u7372\u5f97\u5171\u4eab\u9396\uff0c\u4f46\u4e0d\u80fd\u7372\u5f97\u6392\u4ed6\u9396\u3002<\/li>\n<li><strong>\u6392\u4ed6\u9396\uff08Exclusive Lock\uff09<\/strong>: \u5141\u8a31\u4e8b\u52d9\u5c0d\u8cc7\u6599\u9032\u884c\u8b80\u53d6\u548c\u4fee\u6539\uff0c\u4e26\u4e14\u5728\u6301\u6709\u6392\u4ed6\u9396\u7684\u60c5\u6cc1\u4e0b\uff0c\u5176\u4ed6\u4e8b\u52d9\u7121\u6cd5\u7372\u5f97\u4efb\u4f55\u985e\u578b\u7684\u9396\u3002<\/li>\n<\/ul>\n<h3 id=\"2-2-%e8%a1%a8%e7%b4%9a%e9%8e%96-vEJDyEqawM\">2.2 \u8868\u7d1a\u9396<\/h3>\n<p>\u8868\u7d1a\u9396\u662f\u6307\u5c0d\u6574\u500b\u8cc7\u6599\u8868\u9032\u884c\u9396\u5b9a\uff0c\u9019\u6a23\u5728\u9396\u5b9a\u671f\u9593\uff0c\u5176\u4ed6\u4e8b\u52d9\u7121\u6cd5\u5c0d\u8a72\u8868\u9032\u884c\u4efb\u4f55\u64cd\u4f5c\u3002\u8868\u7d1a\u9396\u7684\u512a\u9ede\u5728\u65bc\u7c21\u5316\u4e86\u9396\u7684\u7ba1\u7406\uff0c\u4f46\u7f3a\u9ede\u662f\u6703\u964d\u4f4e\u4e26\u767c\u6027\u3002<\/p>\n<ul>\n<li><strong>\u5171\u4eab\u8868\u9396\uff08Share Table Lock\uff09<\/strong>: \u5141\u8a31\u591a\u500b\u4e8b\u52d9\u540c\u6642\u8b80\u53d6\u8868\u4e2d\u7684\u8cc7\u6599\uff0c\u4f46\u4e0d\u5141\u8a31\u4fee\u6539\u3002<\/li>\n<li><strong>\u6392\u4ed6\u8868\u9396\uff08Exclusive Table Lock\uff09<\/strong>: \u5141\u8a31\u4e8b\u52d9\u5c0d\u6574\u500b\u8868\u9032\u884c\u8b80\u53d6\u548c\u4fee\u6539\uff0c\u4e26\u4e14\u5728\u6301\u6709\u6392\u4ed6\u8868\u9396\u7684\u60c5\u6cc1\u4e0b\uff0c\u5176\u4ed6\u4e8b\u52d9\u7121\u6cd5\u5c0d\u8a72\u8868\u9032\u884c\u4efb\u4f55\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h2 id=\"3-%e9%8e%96%e7%9a%84%e7%ae%a1%e7%90%86-vEJDyEqawM\">3. \u9396\u7684\u7ba1\u7406<\/h2>\n<p>Oracle\u8cc7\u6599\u5eab\u63d0\u4f9b\u4e86\u591a\u7a2e\u9396\u7684\u7ba1\u7406\u6a5f\u5236\uff0c\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u548c\u8cc7\u6599\u5eab\u7ba1\u7406\u54e1\u6709\u6548\u5730\u63a7\u5236\u9396\u7684\u4f7f\u7528\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u9396\u7ba1\u7406\u547d\u4ee4\uff1a<\/p>\n<ul>\n<li><code>SELECT * FROM v$lock;<\/code>: \u67e5\u8a62\u7576\u524d\u8cc7\u6599\u5eab\u4e2d\u7684\u9396\u72c0\u614b\u3002<\/li>\n<li><code>ALTER SESSION ENABLE RESUMABLE;<\/code>: \u555f\u7528\u53ef\u6062\u5fa9\u7684\u9396\u5b9a\uff0c\u7576\u9396\u5b9a\u8d85\u6642\u6642\uff0c\u7cfb\u7d71\u6703\u81ea\u52d5\u6062\u5fa9\u3002<\/li>\n<\/ul>\n<h2 id=\"4-%e9%8e%96%e7%9a%84%e5%95%8f%e9%a1%8c%e8%88%87%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-vEJDyEqawM\">4. \u9396\u7684\u554f\u984c\u8207\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u9396\u7684\u4f7f\u7528\u53ef\u80fd\u6703\u5c0e\u81f4\u4e00\u4e9b\u554f\u984c\uff0c\u4f8b\u5982\u6b7b\u9396\u548c\u9396\u7af6\u722d\u3002\u6b7b\u9396\u662f\u6307\u5169\u500b\u6216\u591a\u500b\u4e8b\u52d9\u4e92\u76f8\u7b49\u5f85\u5c0d\u65b9\u91cb\u653e\u9396\uff0c\u5c0e\u81f4\u7121\u6cd5\u7e7c\u7e8c\u57f7\u884c\u3002\u70ba\u4e86\u89e3\u6c7a\u9019\u4e9b\u554f\u984c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u63aa\u65bd\uff1a<\/p>\n<ul>\n<li>\u5b9a\u671f\u6aa2\u67e5\u9396\u7684\u72c0\u614b\uff0c\u53ca\u6642\u91cb\u653e\u4e0d\u5fc5\u8981\u7684\u9396\u3002<\/li>\n<li>\u8a2d\u8a08\u5408\u7406\u7684\u4e8b\u52d9\u908a\u754c\uff0c\u907f\u514d\u9577\u6642\u9593\u6301\u6709\u9396\u3002<\/li>\n<li>\u4f7f\u7528Oracle\u63d0\u4f9b\u7684\u6b7b\u9396\u6aa2\u6e2c\u6a5f\u5236\uff0c\u81ea\u52d5\u8b58\u5225\u4e26\u89e3\u6c7a\u6b7b\u9396\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-vEJDyEqawM\">\u7e3d\u7d50<\/h2>\n<p>Oracle\u8cc7\u6599\u5eab\u4e2d\u7684\u9396\u6a5f\u5236\u662f\u78ba\u4fdd\u8cc7\u6599\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u7684\u95dc\u9375\u3002\u901a\u904e\u5408\u7406\u4f7f\u7528\u884c\u7d1a\u9396\u548c\u8868\u7d1a\u9396\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7d71\u7684\u4e26\u767c\u6027\u548c\u6027\u80fd\u3002\u540c\u6642\uff0c\u4e86\u89e3\u9396\u7684\u7ba1\u7406\u548c\u6f5b\u5728\u554f\u984c\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u6709\u6548\u5730\u8a2d\u8a08\u548c\u7dad\u8b77\u8cc7\u6599\u5eab\u7cfb\u7d71\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5728\u9999\u6e2f\u4f7f\u7528\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u670d\u52d9\u4f86\u652f\u6301\u60a8\u7684\u8cc7\u6599\u5eab\u61c9\u7528\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6dfa\u6790ORACLE\u9396\u7684\u7a2e\u985e\u5283\u5206\uff0c\u63a2\u8a0e\u884c\u7d1a\u9396\u3001\u8868\u7d1a\u9396\u53ca\u5168\u5c40\u9396\u7684\u7279\u9ede\u8207\u61c9\u7528\uff0c\u52a9\u60a8\u6df1\u5165\u7406\u89e3\u6578\u64da\u5eab\u9396\u6a5f\u5236\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-171457","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171457","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=171457"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171457\/revisions"}],"predecessor-version":[{"id":171458,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171457\/revisions\/171458"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=171457"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=171457"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=171457"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}