“`\u53c2\u8003\u56de\u7b54\uff1a<\/p>\n
\u4e8b\u52a1\uff08Transaction\uff09\u662f\u7531\u4e00\u7cfb\u5217\u5bf9\u7cfb\u7edf\u4e2d\u6570\u636e\u8fdb\u884c\u8bbf\u95ee\u4e0e\u66f4\u65b0\u7684\u64cd\u4f5c\u6240\u7ec4\u6210\u7684\u4e00\u4e2a\u7a0b\u5e8f\u6267\u884c\u903b\u8f91\u5355\u5143\u3002\u4e8b\u52a1\u662fDBMS\u4e2d\u6700\u57fa\u7840\u7684\u5355\u4f4d\uff0c\u4e8b\u52a1\u4e0d\u53ef\u5206\u5272\u3002<\/p>\n
\u4e8b\u52a1\u5177\u67094\u4e2a\u57fa\u672c\u7279\u5f81\uff0c\u5206\u522b\u662f\uff1a\u539f\u5b50\u6027\uff08Atomicity\uff09\u3001\u4e00\u81f4\u6027\uff08Consistency\uff09\u3001\u9694\u79bb\u6027\uff08Isolation\uff09\u3001\u6301\u4e45\u6027\uff08Duration\uff09\uff0c\u7b80\u79f0ACID\u3002<\/p>\n
\\1. \u539f\u5b50\u6027\uff08Atomicity\uff09<\/p>\n
\u539f\u5b50\u6027\u662f\u6307\u4e8b\u52a1\u5305\u542b\u7684\u6240\u6709\u64cd\u4f5c\u8981\u4e48\u5168\u90e8\u6210\u529f\uff0c\u8981\u4e48\u5168\u90e8\u5931\u8d25\u56de\u6eda\uff0c[\u5220\u5220\u5220]\u56e0\u6b64\u4e8b\u52a1\u7684\u64cd\u4f5c\u5982\u679c\u6210\u529f\u5c31\u5fc5\u987b\u8981\u5b8c\u5168\u5e94\u7528\u5230\u6570\u636e\u5e93\uff0c\u5982\u679c\u64cd\u4f5c\u5931\u8d25\u5219\u4e0d\u80fd\u5bf9\u6570\u636e\u5e93\u6709\u4efb\u4f55\u5f71\u54cd\u3002<\/p>\n
\\2. \u4e00\u81f4\u6027\uff08Consistency\uff09<\/p>\n
\u4e00\u81f4\u6027\u662f\u6307\u4e8b\u52a1\u5fc5\u987b\u4f7f\u6570\u636e\u5e93\u4ece\u4e00\u4e2a\u4e00\u81f4\u6027\u72b6\u6001\u53d8\u6362\u5230\u53e6\u4e00\u4e2a\u4e00\u81f4\u6027\u72b6\u6001\uff0c\u4e5f\u5c31\u662f\u8bf4\u4e00\u4e2a\u4e8b\u52a1\u6267\u884c\u4e4b\u524d\u548c\u6267\u884c\u4e4b\u540e\u90fd\u5fc5\u987b\u5904\u4e8e\u4e00\u81f4\u6027\u72b6\u6001\u3002<\/p>\n
\u62ff\u8f6c\u8d26\u6765\u8bf4\uff0c\u5047\u8bbe\u7528\u6237A\u548c\u7528\u6237B\u4e24\u8005\u7684\u94b1\u52a0\u8d77\u6765\u4e00\u5171\u662f5000\uff0c\u90a3\u4e48\u4e0d\u7ba1A\u548cB\u4e4b\u95f4\u5982\u4f55\u8f6c\u8d26\uff0c\u8f6c\u51e0\u6b21\u8d26\uff0c\u4e8b\u52a1\u7ed3\u675f\u540e\u4e24\u4e2a\u7528\u6237\u7684\u94b1\u76f8\u52a0\u8d77\u6765\u5e94\u8be5\u8fd8\u5f97\u662f5000\uff0c\u8fd9\u5c31\u662f\u4e8b\u52a1\u7684\u4e00\u81f4\u6027\u3002<\/p>\n
\\3. \u9694\u79bb\u6027\uff08Isolation\uff09<\/p>\n
\u9694\u79bb\u6027\u662f\u5f53\u591a\u4e2a\u7528\u6237\u5e76\u53d1\u8bbf\u95ee\u6570\u636e\u5e93\u65f6\uff0c\u6bd4\u5982\u64cd\u4f5c\u540c\u4e00\u5f20\u8868\u65f6\uff0c\u6570\u636e\u5e93\u4e3a\u6bcf\u4e00\u4e2a\u7528\u6237\u5f00\u542f\u7684\u4e8b\u52a1\uff0c\u4e0d\u80fd\u88ab\u5176\u4ed6\u4e8b\u52a1\u7684\u64cd\u4f5c\u6240\u5e72\u6270\uff0c\u591a\u4e2a\u5e76\u53d1\u4e8b\u52a1\u4e4b\u95f4\u8981\u76f8\u4e92\u9694\u79bb\u3002<\/p>\n
\u5373\u8981\u8fbe\u5230\u8fd9\u4e48\u4e00\u79cd\u6548\u679c\uff1a\u5bf9\u4e8e\u4efb\u610f\u4e24\u4e2a\u5e76\u53d1\u7684\u4e8b\u52a1T1\u548cT2\uff0c\u5728\u4e8b\u52a1T1\u770b\u6765\uff0cT2\u8981\u4e48\u5728T1\u5f00\u59cb\u4e4b\u524d\u5c31\u5df2\u7ecf\u7ed3\u675f\uff0c\u8981\u4e48\u5728T1\u7ed3\u675f\u4e4b\u540e\u624d\u5f00\u59cb\uff0c\u8fd9\u6837\u6bcf\u4e2a\u4e8b\u52a1\u90fd\u611f\u89c9\u4e0d\u5230\u6709\u5176\u4ed6\u4e8b\u52a1\u5728\u5e76\u53d1\u5730\u6267\u884c\u3002<\/p>\n
\u591a\u4e2a\u4e8b\u52a1\u5e76\u53d1\u8bbf\u95ee\u65f6\uff0c\u4e8b\u52a1\u4e4b\u95f4\u662f\u9694\u79bb\u7684\uff0c\u4e00\u4e2a\u4e8b\u52a1\u4e0d\u5e94\u8be5\u5f71\u54cd\u5176\u5b83\u4e8b\u52a1\u8fd0\u884c\u6548\u679c\u3002<\/p>\n
\u8fd9\u6307\u7684\u662f\u5728\u5e76\u53d1\u73af\u5883\u4e2d\uff0c\u5f53\u4e0d\u540c\u7684\u4e8b\u52a1\u540c\u65f6\u64cd\u7eb5\u76f8\u540c\u7684\u6570\u636e\u65f6\uff0c\u6bcf\u4e2a\u4e8b\u52a1\u90fd\u6709\u5404\u81ea\u7684\u5b8c\u6574\u6570\u636e\u7a7a\u95f4\u3002\u7531\u5e76\u53d1\u4e8b\u52a1\u6240\u505a\u7684\u4fee\u6539\u5fc5\u987b\u4e0e\u4efb\u4f55\u5176\u4ed6\u5e76\u53d1\u4e8b\u52a1\u6240\u505a\u7684\u4fee\u6539\u9694\u79bb\u3002<\/p>\n
\u4e0d\u540c\u7684\u9694\u79bb\u7ea7\u522b\uff1a<\/p>\n
Read Uncommitted\uff08\u8bfb\u53d6\u672a\u63d0\u4ea4[\u6dfb\u52a0\u4e2d\u6587\u91ca\u4e49]\u5185\u5bb9\uff09\uff1a\u6700\u4f4e\u7684\u9694\u79bb\u7ea7\u522b\uff0c\u4ec0\u4e48\u90fd\u4e0d\u9700\u8981\u505a\uff0c\u4e00\u4e2a\u4e8b\u52a1\u53ef\u4ee5\u8bfb\u5230\u53e6\u4e00\u4e2a\u4e8b\u52a1\u672a\u63d0\u4ea4\u7684\u7ed3\u679c\u3002\u6240\u6709\u7684\u5e76\u53d1\u4e8b\u52a1\u95ee\u9898\u90fd\u4f1a\u53d1\u751f\u3002<\/p>\n
Read Committed\uff08\u8bfb\u53d6\u63d0\u4ea4\u5185\u5bb9\uff09\uff1a\u53ea\u6709\u5728\u4e8b\u52a1\u63d0\u4ea4\u540e\uff0c\u5176\u66f4\u65b0\u7ed3\u679c\u624d\u4f1a\u88ab\u5176\u4ed6\u4e8b\u52a1\u770b\u89c1\u3002\u53ef\u4ee5\u89e3\u51b3\u810f\u8bfb\u95ee\u9898\u3002<\/p>\n
Repeated Read\uff08\u53ef\u91cd\u590d\u8bfb\uff09\uff1a\u5728\u4e00\u4e2a\u4e8b\u52a1\u4e2d\uff0c\u5bf9\u4e8e\u540c\u4e00\u4efd\u6570\u636e\u7684\u8bfb\u53d6\u7ed3\u679c\u603b\u662f\u76f8\u540c\u7684\uff0c\u65e0\u8bba\u662f\u5426\u6709\u5176\u4ed6\u4e8b\u52a1\u5bf9\u8fd9\u4efd\u6570\u636e\u8fdb\u884c\u64cd\u4f5c\uff0c\u4ee5\u53ca\u8fd9\u4e2a\u4e8b\u52a1\u662f\u5426\u63d0\u4ea4\u3002\u53ef\u4ee5\u89e3\u51b3\u810f\u8bfb\u3001\u4e0d\u53ef\u91cd\u590d\u8bfb\u3002<\/p>\n
Serialization\uff08\u53ef\u4e32\u884c\u5316\uff09\uff1a\u4e8b\u52a1\u4e32\u884c\u5316\u6267\u884c\uff0c\u9694\u79bb\u7ea7\u522b\u6700\u9ad8\uff0c\u727a\u7272\u4e86\u7cfb\u7edf\u7684\u5e76\u53d1\u6027\u3002\u53ef\u4ee5\u89e3\u51b3\u5e76\u53d1\u4e8b\u52a1\u7684\u6240\u6709\u95ee\u9898\u3002<\/p>\n
\\4. \u6301\u4e45\u6027\uff08Durability\uff09<\/p>\n
\u6301\u4e45\u6027\u662f\u6307\u4e00\u4e2a\u4e8b\u52a1\u4e00\u65e6\u88ab\u63d0\u4ea4\u4e86\uff0c\u90a3\u4e48\u5bf9\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u7684\u6539\u53d8\u5c31\u662f\u6c38\u4e45\u6027\u7684\uff0c\u5373\u4fbf\u662f\u5728\u6570\u636e\u5e93\u7cfb\u7edf\u9047\u5230\u6545\u969c\u7684\u60c5\u51b5\u4e0b\u4e5f\u4e0d\u4f1a\u4e22\u5931\u63d0\u4ea4\u4e8b\u52a1\u7684\u64cd\u4f5c\u3002<\/p>\n
\u4f8b\u5982\u6211\u4eec\u5728\u4f7f\u7528JDBC\u64cd\u4f5c\u6570\u636e\u5e93\u65f6\uff0c\u5728\u63d0\u4ea4\u4e8b\u52a1\u65b9\u6cd5\u540e\uff0c\u63d0\u793a\u7528\u6237\u4e8b\u52a1\u64cd\u4f5c\u5b8c\u6210\uff0c\u5f53\u6211\u4eec\u7a0b\u5e8f\u6267\u884c\u5b8c\u6210\u76f4\u5230\u770b\u5230\u63d0\u793a\u540e\uff0c\u5c31\u53ef\u4ee5\u8ba4\u5b9a\u4e8b\u52a1\u4ee5\u53ca\u6b63\u786e\u63d0\u4ea4\uff0c\u5373\u4f7f\u8fd9\u65f6\u5019\u6570\u636e\u5e93\u51fa\u73b0\u4e86\u95ee\u9898\uff0c\u4e5f\u5fc5\u987b\u8981\u5c06\u6211\u4eec\u7684\u4e8b\u52a1\u5b8c\u5168\u6267\u884c\u5b8c\u6210\uff0c\u5426\u5219\u5c31\u4f1a\u9020\u6210\u6211\u4eec\u770b\u5230\u63d0\u793a\u4e8b\u52a1\u5904\u7406\u5b8c\u6bd5\uff0c\u4f46\u662f\u6570\u636e\u5e93\u56e0\u4e3a\u6545\u969c\u800c\u6ca1\u6709\u6267\u884c\u4e8b\u52a1\u7684\u91cd\u5927\u9519\u8bef\u3002<\/p>\n
“`<\/p>\n","protected":false},"excerpt":{"rendered":"
“`\u53c2\u8003\u56de\u7b54\uff1a \u4e8b\u52a1\uff08Transaction\uff09\u662f\u7531\u4e00\u7cfb\u5217\u5bf9\u7cfb\u7edf\u4e2d\u6570\u636e\u8fdb\u884c\u8bbf\u95ee\u4e0e\u66f4\u65b0\u7684\u64cd\u4f5c\u6240\u7ec4\u6210\u7684\u4e00 […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-47713","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/47713","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=47713"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/47713\/revisions"}],"predecessor-version":[{"id":47714,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/47713\/revisions\/47714"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=47713"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=47713"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=47713"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}