{"id":204644,"date":"2025-05-29T11:39:23","date_gmt":"2025-05-29T03:39:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204644\/"},"modified":"2025-05-29T11:39:23","modified_gmt":"2025-05-29T03:39:23","slug":"%e4%bd%bf%e7%94%a8-executemany-%e6%96%b9%e6%b3%95%e6%8f%92%e5%85%a5%e6%95%b0%e6%8d%ae%e6%97%b6%ef%bc%8c%e5%a6%82%e4%bd%95%e5%9c%a8-on-duplicate-key-update-%e5%ad%90%e5%8f%a5%e4%b8%ad%e5%8f%82%e6%95%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204644\/","title":{"rendered":"\u4f7f\u7528 executemany \u65b9\u6cd5\u63d2\u5165\u6570\u636e\u65f6\uff0c\u5982\u4f55\u5728 on duplicate key update \u5b50\u53e5\u4e2d\u53c2\u6570\u5316\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u4f7f\u7528 executemany \u65b9\u6cd5\u63d2\u5165\u6570\u636e\u65f6\uff0c\u5982\u4f55\u5728 on duplicate key update \u5b50\u53e5\u4e2d\u53c2\u6570\u5316\uff1f<\/h1>\n<p>\u77e5\u8bc6\u70b9\u638c\u63e1\u4e86\uff0c\u8fd8\u9700\u8981\u4e0d\u65ad\u7ec3\u4e60\u624d\u80fd\u719f\u7ec3\u8fd0\u7528\u3002\u4e0b\u9762\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u4e2a\u6587\u7ae0\u5f00\u53d1\u5b9e\u6218\uff0c\u624b\u628a\u624b\u6559\u5927\u5bb6\u5b66\u4e60\u300a\u4f7f\u7528 executemany \u65b9\u6cd5\u63d2\u5165\u6570\u636e\u65f6\uff0c\u5982\u4f55\u5728 on duplicate key update \u5b50\u53e5\u4e2d\u53c2\u6570\u5316\uff1f\u300b\uff0c\u5728\u5b9e\u73b0\u529f\u80fd\u7684\u8fc7\u7a0b\u4e2d\u4e5f\u5e26\u5927\u5bb6\u91cd\u65b0\u6e29\u4e60\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6e29\u6545\u800c\u77e5\u65b0\uff0c\u56de\u5934\u770b\u770b\u8bf4\u4e0d\u5b9a\u53c8\u6709\u4e0d\u4e00\u6837\u7684\u611f\u609f\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241112\/17313903426732eb86a444d.jpg\" class=\"aligncenter\"><\/p>\n<p>\u4f60\u7684\u4ee3\u7801\u62a5\u9519\u662f\u5728\u5c1d\u8bd5\u8fd0\u884c\u5305\u542b on duplicate key update \u7684 insert \u8bed\u53e5\u65f6\u3002\u8fd9\u4e2a\u8bed\u53e5\u7528\u4e8e\u5728\u5df2\u7ecf\u5b58\u5728\u8bb0\u5f55\u7684\u884c\u4e2d\u66f4\u65b0\u5217\u7684\u503c\uff0c\u5982\u679c\u6ca1\u6709\u5219\u63d2\u5165\u65b0\u884c\u3002<\/p>\n<p>\u5728\u4f60\u7684\u7279\u5b9a\u6848\u4f8b\u4e2d\uff0c\u4f7f\u7528 executemany \u65b9\u6cd5\u65f6\u53d1\u751f\u4e86\u9519\u8bef\u3002\u6b64\u65b9\u6cd5\u5141\u8bb8\u4f60\u4f7f\u7528\u53c2\u6570\u5316\u67e5\u8be2\u4e00\u6b21\u63d2\u5165\u591a\u884c\u3002\u4f46\u662f\uff0c\u5728\u4f60\u7684\u8bed\u53e5\u4e2d\uff0c\u4f60\u672a\u5c06\u53c2\u6570\u5316\u5360\u4f4d\u7b26\uff08?\uff09\u5305\u542b\u5728 on duplicate key update \u5b50\u53e5\u4e2d\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u4e3a\u4e86\u89e3\u51b3\u6b64\u95ee\u9898\uff0c\u4f60\u9700\u8981\u5c06 on duplicate key update \u5b50\u53e5\u7684\u53c2\u6570\u5316\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4fee\u6539\u4f60\u7684\u4ee3\u7801\uff1a<\/p>\n<pre># \u63d2\u5165\u6293\u53d6\u7684\u6570\u636e\u5230\u8868\u4e2d\ncursor = Cursor(connection)\ncursor.executemany('''insert into myfund(fcode,fname,NAV,ACCNAV,updatetime)\nvalues(%(fcode)s,%(fname)s,%(NAV)s,%(ACCNAV)s,%(updatetime)s) \non duplicate key update NAV= %(NAV)s,ACCNAV= %(ACCNAV)s ''',\nresult)<\/pre>\n<p>\u901a\u8fc7\u8fd9\u4e9b\u4fee\u6539\uff0cexecutemany \u65b9\u6cd5\u5c06\u6b63\u786e\u5730\u53c2\u6570\u5316 on duplicate key update \u5b50\u53e5\uff0c\u5e76\u4e14\u4f60\u5c06\u80fd\u591f\u6210\u529f\u5730\u6267\u884c\u63d2\u5165\u8bed\u53e5\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301\uff01\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528 executemany \u65b9&#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-204644","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204644","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=204644"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204644\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=204644"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=204644"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=204644"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}