{"id":191484,"date":"2024-11-12T16:48:22","date_gmt":"2024-11-12T08:48:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/191484\/"},"modified":"2024-11-12T16:48:23","modified_gmt":"2024-11-12T08:48:23","slug":"%e8%a9%b3%e8%a7%a3oracle%e4%ba%8b%e5%8b%99%e9%9a%94%e9%9b%a2%e7%b4%9a%e5%88%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/191484\/","title":{"rendered":"\u8a73\u89e3oracle\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225"},"content":{"rendered":"<h1 id=\"%e8%a9%b3%e8%a7%a3oracle%e4%ba%8b%e5%8b%99%e9%9a%94%e9%9b%a2%e7%b4%9a%e5%88%a5-UiDLZLuKfV\">\u8a73\u89e3Oracle\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225\u662f\u78ba\u4fdd\u8cc7\u6599\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u7684\u91cd\u8981\u6982\u5ff5\u3002Oracle\u8cc7\u6599\u5eab\u63d0\u4f9b\u4e86\u591a\u7a2e\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225\uff0c\u4ee5\u6eff\u8db3\u4e0d\u540c\u61c9\u7528\u5834\u666f\u7684\u9700\u6c42\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eOracle\u7684\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225\uff0c\u5305\u62ec\u5176\u5b9a\u7fa9\u3001\u7279\u6027\u53ca\u9069\u7528\u60c5\u5883\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e4%ba%8b%e5%8b%99%e9%9a%94%e9%9b%a2%e7%b4%9a%e5%88%a5%ef%bc%9f-UiDLZLuKfV\">\u4ec0\u9ebc\u662f\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225\uff1f<\/h2>\n<p>\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225\u5b9a\u7fa9\u4e86\u591a\u500b\u4e8b\u52d9\u4e4b\u9593\u7684\u76f8\u4e92\u5f71\u97ff\u7a0b\u5ea6\u3002\u6839\u64da\u4e0d\u540c\u7684\u9694\u96e2\u7d1a\u5225\uff0c\u4e8b\u52d9\u53ef\u4ee5\u5728\u591a\u5927\u7a0b\u5ea6\u4e0a\u770b\u5230\u5176\u4ed6\u4e8b\u52d9\u7684\u8b8a\u66f4\u3002\u9019\u4e9b\u9694\u96e2\u7d1a\u5225\u4e3b\u8981\u662f\u70ba\u4e86\u9632\u6b62\u8cc7\u6599\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\u767c\u751f\uff0c\u4e26\u78ba\u4fdd\u8cc7\u6599\u7684\u5b8c\u6574\u6027\u3002<\/p>\n<h2 id=\"oracle%e7%9a%84%e4%ba%8b%e5%8b%99%e9%9a%94%e9%9b%a2%e7%b4%9a%e5%88%a5-UiDLZLuKfV\">Oracle\u7684\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225<\/h2>\n<p>Oracle\u8cc7\u6599\u5eab\u652f\u6301\u56db\u7a2e\u4e3b\u8981\u7684\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225\uff0c\u5206\u5225\u662f\uff1a<\/p>\n<ul>\n<li><strong>\u8b80\u672a\u63d0\u4ea4\uff08Read Uncommitted\uff09<\/strong><\/li>\n<li><strong>\u8b80\u5df2\u63d0\u4ea4\uff08Read Committed\uff09<\/strong><\/li>\n<li><strong>\u53ef\u91cd\u8907\u8b80\uff08Repeatable Read\uff09<\/strong><\/li>\n<li><strong>\u5e8f\u5217\u5316\uff08Serializable\uff09<\/strong><\/li>\n<\/ul>\n<h3 id=\"1-%e8%ae%80%e6%9c%aa%e6%8f%90%e4%ba%a4%ef%bc%88read-uncommitted%ef%bc%89-UiDLZLuKfV\">1. \u8b80\u672a\u63d0\u4ea4\uff08Read Uncommitted\uff09<\/h3>\n<p>\u5728\u6b64\u9694\u96e2\u7d1a\u5225\u4e0b\uff0c\u4e8b\u52d9\u53ef\u4ee5\u8b80\u53d6\u5176\u4ed6\u4e8b\u52d9\u5c1a\u672a\u63d0\u4ea4\u7684\u8b8a\u66f4\u3002\u9019\u610f\u5473\u8457\u4e00\u500b\u4e8b\u52d9\u53ef\u4ee5\u770b\u5230\u53e6\u4e00\u500b\u4e8b\u52d9\u7684\u4e2d\u9593\u72c0\u614b\uff0c\u53ef\u80fd\u5c0e\u81f4\u300c\u9ad2\u8b80\u300d\u7684\u60c5\u6cc1\u3002\u96d6\u7136\u6b64\u7d1a\u5225\u63d0\u4f9b\u4e86\u6700\u9ad8\u7684\u4e26\u767c\u6027\uff0c\u4f46\u537b\u53ef\u80fd\u5c0e\u81f4\u8cc7\u6599\u4e0d\u4e00\u81f4\u3002<\/p>\n<h3 id=\"2-%e8%ae%80%e5%b7%b2%e6%8f%90%e4%ba%a4%ef%bc%88read-committed%ef%bc%89-UiDLZLuKfV\">2. \u8b80\u5df2\u63d0\u4ea4\uff08Read Committed\uff09<\/h3>\n<p>\u9019\u662fOracle\u7684\u9810\u8a2d\u9694\u96e2\u7d1a\u5225\u3002\u5728\u6b64\u7d1a\u5225\u4e0b\uff0c\u4e8b\u52d9\u53ea\u80fd\u8b80\u53d6\u5df2\u63d0\u4ea4\u7684\u8cc7\u6599\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u9ad2\u8b80\u7684\u60c5\u6cc1\uff0c\u4f46\u4ecd\u7136\u53ef\u80fd\u51fa\u73fe\u300c\u4e0d\u53ef\u91cd\u8907\u8b80\u300d\u7684\u554f\u984c\uff0c\u5373\u5728\u540c\u4e00\u4e8b\u52d9\u4e2d\u591a\u6b21\u8b80\u53d6\u540c\u4e00\u8cc7\u6599\u6642\uff0c\u53ef\u80fd\u6703\u5f97\u5230\u4e0d\u540c\u7684\u7d50\u679c\u3002<\/p>\n<h3 id=\"3-%e5%8f%af%e9%87%8d%e8%a4%87%e8%ae%80%ef%bc%88repeatable-read%ef%bc%89-UiDLZLuKfV\">3. \u53ef\u91cd\u8907\u8b80\uff08Repeatable Read\uff09<\/h3>\n<p>\u5728\u53ef\u91cd\u8907\u8b80\u9694\u96e2\u7d1a\u5225\u4e0b\uff0c\u4e8b\u52d9\u5728\u57f7\u884c\u671f\u9593\u53ef\u4ee5\u591a\u6b21\u8b80\u53d6\u76f8\u540c\u7684\u8cc7\u6599\uff0c\u4e26\u4e14\u6bcf\u6b21\u90fd\u6703\u5f97\u5230\u76f8\u540c\u7684\u7d50\u679c\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u4e0d\u53ef\u91cd\u8907\u8b80\u7684\u554f\u984c\uff0c\u4f46\u4ecd\u7136\u53ef\u80fd\u51fa\u73fe\u300c\u5e7b\u8b80\u300d\u7684\u60c5\u6cc1\uff0c\u5373\u5728\u540c\u4e00\u4e8b\u52d9\u4e2d\u65b0\u589e\u7684\u8cc7\u6599\u53ef\u80fd\u6703\u5f71\u97ff\u67e5\u8a62\u7d50\u679c\u3002<\/p>\n<h3 id=\"4-%e5%ba%8f%e5%88%97%e5%8c%96%ef%bc%88serializable%ef%bc%89-UiDLZLuKfV\">4. \u5e8f\u5217\u5316\uff08Serializable\uff09<\/h3>\n<p>\u5e8f\u5217\u5316\u662f\u6700\u9ad8\u7684\u9694\u96e2\u7d1a\u5225\u3002\u5728\u6b64\u7d1a\u5225\u4e0b\uff0c\u6240\u6709\u4e8b\u52d9\u90fd\u88ab\u8996\u70ba\u4e32\u884c\u57f7\u884c\uff0c\u9019\u610f\u5473\u8457\u4e00\u500b\u4e8b\u52d9\u7684\u57f7\u884c\u4e0d\u6703\u53d7\u5230\u5176\u4ed6\u4e8b\u52d9\u7684\u5f71\u97ff\u3002\u96d6\u7136\u9019\u6a23\u53ef\u4ee5\u5b8c\u5168\u907f\u514d\u9ad2\u8b80\u3001\u4e0d\u53ef\u91cd\u8907\u8b80\u548c\u5e7b\u8b80\u7684\u554f\u984c\uff0c\u4f46\u6703\u986f\u8457\u964d\u4f4e\u7cfb\u7d71\u7684\u4e26\u767c\u6027\u548c\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e9%81%b8%e6%93%87%e5%90%88%e9%81%a9%e7%9a%84%e9%9a%94%e9%9b%a2%e7%b4%9a%e5%88%a5-UiDLZLuKfV\">\u9078\u64c7\u5408\u9069\u7684\u9694\u96e2\u7d1a\u5225<\/h2>\n<p>\u9078\u64c7\u5408\u9069\u7684\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225\u53d6\u6c7a\u65bc\u61c9\u7528\u7684\u9700\u6c42\u548c\u6027\u80fd\u8003\u91cf\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u4e26\u767c\u6027\u7684\u61c9\u7528\uff0c\u53ef\u80fd\u6703\u9078\u64c7\u8b80\u5df2\u63d0\u4ea4\u6216\u8b80\u672a\u63d0\u4ea4\u3002\u800c\u5c0d\u65bc\u9700\u8981\u9ad8\u8cc7\u6599\u4e00\u81f4\u6027\u7684\u61c9\u7528\uff0c\u5247\u61c9\u8003\u616e\u4f7f\u7528\u53ef\u91cd\u8907\u8b80\u6216\u5e8f\u5217\u5316\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-UiDLZLuKfV\">\u7d50\u8ad6<\/h2>\n<p>Oracle\u8cc7\u6599\u5eab\u63d0\u4f9b\u4e86\u591a\u7a2e\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225\uff0c\u4ee5\u6eff\u8db3\u4e0d\u540c\u7684\u61c9\u7528\u9700\u6c42\u3002\u4e86\u89e3\u9019\u4e9b\u9694\u96e2\u7d1a\u5225\u7684\u7279\u6027\u53ca\u5176\u9069\u7528\u60c5\u5883\uff0c\u5c0d\u65bc\u8a2d\u8a08\u9ad8\u6548\u4e14\u53ef\u9760\u7684\u8cc7\u6599\u5eab\u7cfb\u7d71\u81f3\u95dc\u91cd\u8981\u3002\u9078\u64c7\u5408\u9069\u7684\u9694\u96e2\u7d1a\u5225\u53ef\u4ee5\u5728\u6027\u80fd\u548c\u8cc7\u6599\u4e00\u81f4\u6027\u4e4b\u9593\u53d6\u5f97\u5e73\u8861\uff0c\u5f9e\u800c\u63d0\u5347\u6574\u9ad4\u7cfb\u7d71\u7684\u6548\u80fd\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc<code>VPS<\/code>\u3001<code>\u9999\u6e2fVPS<\/code>\u3001<code>\u4f3a\u670d\u5668<\/code>\u3001<code>\u96f2\u4f3a\u670d\u5668<\/code>\u53ca<code>\u9999\u6e2f\u4f3a\u670d\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>\u8a73\u89e3Oracle\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225\uff0c\u6df1\u5165\u63a2\u8a0e\u4e0d\u540c\u9694\u96e2\u7d1a\u5225\u7684\u7279\u9ede\u3001\u512a\u7f3a\u9ede\u53ca\u5176\u5c0d\u6578\u64da\u4e00\u81f4\u6027\u7684\u5f71\u97ff\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-191484","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/191484","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=191484"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/191484\/revisions"}],"predecessor-version":[{"id":191485,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/191484\/revisions\/191485"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=191484"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=191484"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=191484"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}