{"id":205437,"date":"2025-05-29T13:13:26","date_gmt":"2025-05-29T05:13:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205437\/"},"modified":"2025-05-29T13:13:26","modified_gmt":"2025-05-29T05:13:26","slug":"%e4%bd%bf%e7%94%a8-pymysql-%e5%ba%93%e6%97%b6%ef%bc%8c%e4%b8%ba%e4%bb%80%e4%b9%88-on-duplicate-key-update-%e8%af%ad%e5%8f%a5%e4%b8%ad-updatetimes-%e5%8f%82%e6%95%b0%e6%8a%a5%e9%94%99%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205437\/","title":{"rendered":"\u4f7f\u7528 pymysql \u5e93\u65f6\uff0c\u4e3a\u4ec0\u4e48 ON DUPLICATE KEY UPDATE \u8bed\u53e5\u4e2d %(updatetime)s \u53c2\u6570\u62a5\u9519\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u4f7f\u7528 pymysql \u5e93\u65f6\uff0c\u4e3a\u4ec0\u4e48 ON DUPLICATE KEY UPDATE \u8bed\u53e5\u4e2d %(updatetime)s \u53c2\u6570\u62a5\u9519\uff1f<\/h1>\n<p>\u76ee\u524d\u4e0a\u5df2\u7ecf\u6709\u5f88\u591a\u5173\u4e8e\u7684\u6587\u7ae0\u4e86\uff0c\u81ea\u5df1\u5728\u521d\u6b21\u9605\u8bfb\u8fd9\u4e9b\u6587\u7ae0\u4e2d\uff0c\u4e5f\u89c1\u8bc6\u5230\u4e86\u5f88\u591a\u5b66\u4e60\u601d\u8def\uff1b\u90a3\u4e48\u672c\u6587<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u4f7f\u7528 pymysql \u5e93\u65f6\uff0c\u4e3a\u4ec0\u4e48 ON DUPLICATE KEY UPDATE \u8bed\u53e5\u4e2d %(updatetime)s \u53c2\u6570\u62a5\u9519\uff1f\u300b<\/span>\uff0c\u4e5f\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff0c\u5982\u679c\u9605\u8bfb\u5b8c\u540e\u771f\u7684\u5bf9\u4f60\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u6709\u5e2e\u52a9\uff0c\u6b22\u8fce\u52a8\u52a8\u624b\u6307\uff0c\u8bc4\u8bba\u7559\u8a00\u5e76\u5206\u4eab~<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241202\/1733101591674d081748924.jpg\" class=\"aligncenter\"><\/p>\n<p>mysql\u7684 on duplicate key update \u8bed\u53e5\u4e2d\u51fa\u73b0\u9519\u8bef\uff0c\u539f\u56e0\u662f\u4f7f\u7528 pymysql \u5e93\u65f6\uff0c\u6ca1\u6709\u5bf9\u5176\u4e2d\u7684 %(updatetime)s \u53c2\u6570\u8fdb\u884c\u8f6c\u4e49\u3002<\/p>\n<p>pymysql \u4e2d\u4f7f\u7528\u5360\u4f4d\u7b26\u65f6\uff0c\u5e94\u4f7f\u7528\u4ee5\u4e0b\u683c\u5f0f\uff1a<\/p>\n<pre>cursor.execute(\"insert into mytable (a, b, c) values (%(a)s, %(b)s, %(c)s)\", {\"a\": \"value1\", \"b\": \"value2\", \"c\": \"value3\"})<\/pre>\n<p>\u5728\u4f60\u7684\u60c5\u51b5\u4e0b\uff0c\u6b63\u786e\u7684\u67e5\u8be2\u5e94\u4e3a\uff1a<\/p>\n<pre>cursor.executemany('''insert into myfund(fcode,fname,NAV,ACCNAV,updatetime)\nvalues(%(fcode)s,%(fname)s,%(NAV)s,%(ACCNAV)s,%(updatetime)s) \non duplicate key update `updatetime`= %(updatetime)s,NAV= %(NAV)s,ACCNAV= %(ACCNAV)s ''',\nresult)<\/pre>\n<p>\u8fd9\u6837\uff0cpymysql \u5e93\u5c06\u6b63\u786e\u5904\u7406 %(updatetime)s \u53c2\u6570\uff0c\u5e76\u5c06\u5176\u8f6c\u4e49\u4e3a\u9002\u7528\u7684 sql \u8bed\u53e5\u3002<\/p>\n<p>\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300a\u4f7f\u7528 pymysql \u5e93\u65f6\uff0c\u4e3a\u4ec0\u4e48 ON DUPLICATE KEY UPDATE \u8bed\u53e5\u4e2d %(updatetime)s \u53c2\u6570\u62a5\u9519\uff1f\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u516c\u4f17\u53f7\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528 pymysql \u5e93\u65f6\uff0c\u4e3a\u4ec0&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-205437","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205437","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=205437"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205437\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=205437"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=205437"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=205437"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}