{"id":26029,"date":"2024-11-24T08:56:57","date_gmt":"2024-11-24T00:56:57","guid":{"rendered":"https:\/\/fwq.ai\/blog\/26029\/"},"modified":"2024-11-24T08:56:57","modified_gmt":"2024-11-24T00:56:57","slug":"pymysql%e6%89%a7%e8%a1%8cmysql%e8%af%ad%e5%8f%a5on-duplicate-key-update%e6%8a%a5%e9%94%99%ef%bc%8c%e5%a6%82%e4%bd%95%e8%a7%a3%e5%86%b3%ef%bc%9f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/26029\/","title":{"rendered":"pymysql\u6267\u884cMySQL\u8bed\u53e5`on duplicate key update`\u62a5\u9519\uff0c\u5982\u4f55\u89e3\u51b3\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173077779715498.jpg\" class=\"aligncenter\" title=\"pymysql\u6267\u884cMySQL\u8bed\u53e5`on duplicate key update`\u62a5\u9519\uff0c\u5982\u4f55\u89e3\u51b3\uff1f\u63d2\u56fe\" alt=\"pymysql\u6267\u884cMySQL\u8bed\u53e5`on duplicate key update`\u62a5\u9519\uff0c\u5982\u4f55\u89e3\u51b3\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>py\u6267\u884cmy\u5728 on duplicate key update\u8fd9\u53e5\u62a5\u9519\u4e0d\u77e5\u5982\u4f55\u89e3\u51b3<\/strong><\/p>\n<p>\u5728\u5b66\u4e60\u4e2d\u7ec3\u4e60\u6570\u636e\u5165\u5e93\u65f6\u5019\u8fd9\u91cc\u4e00\u76f4\u63d0\u793a\u62a5\u9519\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 `updatetime`= %(updatetime)s,nav= %(nav)s,accnav= %(accnav)s ''',\nresult)<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u62a5\u9519\u5185\u5bb9\uff1a<\/p>\n<pre>traceback (most recent call last):\n  file \"f:pythoncodelearn9pymysqlmain.py\", line 35, in &lt;module&gt;\n    cursor.executemany('''insert into myfund(fcode,fname,nav,accnav,updatetime)\n  file \"f:pythoncodeenvlbqlibsite-packagespymysqlcursors.py\", line 173, in executemany\n    return self._do_execute_many(\n  file \"f:pythoncodeenvlbqlibsite-packagespymysqlcursors.py\", line 211, in _do_execute_many\n    rows += self.execute(sql + postfix)\n  file \"f:pythoncodeenvlbqlibsite-packagespymysqlcursors.py\", line 148, in execute\n    result = self._query(query)\n  file \"f:pythoncodeenvlbqlibsite-packagespymysqlcursors.py\", line 310, in _query\n    conn.query(q)\n  file \"f:pythoncodeenvlbqlibsite-packagespymysqlconnections.py\", line 548, in query\n    self._affected_rows = self._read_query_result(unbuffered=unbuffered)\n  file \"f:pythoncodeenvlbqlibsite-packagespymysqlconnections.py\", line 775, in _read_query_result\n    result.read()\n  file \"f:pythoncodeenvlbqlibsite-packagespymysqlconnections.py\", line 1156, in read\n    first_packet = self._read_packet()\n  file \"f:pythoncodeenvlbqlibsite-packagespymysqlconnections.py\", line 725, in _read_packet\n    packet.raise_for_error()\n  file \"f:pythoncodeenvlbqlibsite-packagespymysqlprotocol.py\", line 221, in raise_for_error\n    err.raise_mysql_exception(self._data)\n  file \"f:pythoncodeenvlbqlibsite-packagespymysqlerr.py\", line 143, in raise_mysql_exception\n    raise errorclass(errno, errval)\npymysql.err.programmingerror: (1064, \"you have an error in your sql syntax; check the manual that corresponds to your mysql server version for the right syntax to use near '%(updatetime)s,nav= %(nav)s,accnav= %(accnav)s' at line 3\")<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5982\u679c\u4e0d\u5199\u8bed\u53e5\u4e2d\u7684 on duplicate key update&#8230;\u5219\u6267\u884c\u6ca1\u95ee\u9898<\/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) ''',\nresult)<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4f46\u662f\u8fd9\u4e2a\u8bed\u53e5\u653e\u5230mysql\u4e2d\u6267\u884c\u5219\u6b63\u5e38<\/p>\n<pre>mysql&gt; insert into myfund(fcode,fname,NAV,ACCNAV,updatetime)\n    -&gt; values('002649','\u534e\u94f6\u80fd\u6e90\u9769\u65b0\u7075\u6d3b\u914d\u6bd4\u6df7\u5408','1.3110','1.2840','2022-12-25 22:22:33')\n    -&gt; on duplicate key update `updatetime`= '2022-12-25 22:22:33',NAV= '1.3110',ACCNAV= '1.2840';\nQuery OK, 1 row affected (0.07 sec)\nRows matched: 1  Changed: 1  Warnings: 0\n\nmysql&gt; select * from myfund where fcode = '002649';\n+---------+-----------------------------+------+-------+---------------------+\n| fcode    | fname                       | NAV   | ACCNAV | updatetime          |\n+---------+-----------------------------+------+-------+---------------------+\n| 002649   | \u534e\u94f6\u80fd\u6e90\u9769\u65b0\u7075\u6d3b\u914d\u6bd4\u6df7\u5408 | 1.311 | 1.284 | 2022-12-25 22:22:33 |\n+---------+-----------------------------+------+-------+---------------------+\n1 row in set (0.00 sec)<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u53c2\u6570\u662f\u4e00\u4e2adump<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fpy\u6267\u884cMySQL\u8bed\u53e5`on duplicate key update`\u62a5\u9519\uff0c\u5982\u4f55\u89e3\u51b3\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>py\u6267\u884cmy\u5728 on duplicate key update\u8fd9\u53e5\u62a5\u9519\u4e0d\u77e5\u5982\u4f55\u89e3\u51b3 \u5728\u5b66\u4e60\u4e2d\u7ec3\u4e60\u6570\u636e\u5165\u5e93\u65f6\u5019\u8fd9\u91cc\u4e00\u76f4\u63d0\u793a\u62a5\u9519\uff1a # \u63d2\u5165\u6293\u53d6\u7684\u6570\u636e\u5230\u8868\u4e2d cursor = cursor(connection) cursor.executemany(&#8221;&#8217;insert into myfund(fcode,fname,nav,accnav,updatetime) values(%(fcode)s,%(fname)s,%(nav)s,%(accnav)s,%(updatetime)s) on duplicate key update `updatetime`= %(updatetime)s,nav= %(nav)s,accnav= %(accnav)s &#8221;&#8217;, result) \u767b\u5f55\u540e\u590d\u5236 \u62a5\u9519\u5185\u5bb9\uff1a traceback (most recent call last): file &#8220;f:pythoncodelearn9pymysqlmain.py&#8221;, line 35, in &lt;module&gt; cursor.executemany(&#8221;&#8217;insert into myfund(fcode,fname,nav,accnav,updatetime) file &#8220;f:pythoncodeenvlbqlibsite-packagespymysqlcursors.py&#8221;, line 173, in executemany return self._do_execute_many( file &#8220;f:pythoncodeenvlbqlibsite-packagespymysqlcursors.py&#8221;, line 211, in _do_execute_many [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-26029","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/26029","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=26029"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/26029\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=26029"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=26029"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=26029"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}