{"id":85114,"date":"2020-03-27T06:52:20","date_gmt":"2020-03-26T22:52:20","guid":{"rendered":"http:\/\/4563.org\/?p=85114"},"modified":"2020-03-27T06:52:20","modified_gmt":"2020-03-26T22:52:20","slug":"mysql-%e7%a6%81%e6%ad%a2%e4%bd%bf%e7%94%a8-on-duplicate-key-update-%e5%90%97","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=85114","title":{"rendered":"mysql \u7981\u6b62\u4f7f\u7528 on duplicate key update \u5417"},"content":{"rendered":"
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mysql \u7981\u6b62\u4f7f\u7528 on duplicate key update \u5417 <\/h1>\n

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\u8cc7\u6df1\u5927\u4f6c : meteor957 <\/span> <\/i> 12<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
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\u5728\u5b9a\u65f6\u4efb\u52a1\u4e2d\u6267\u884c on duplicate key update \u4ea7\u751f\u6b7b\u9501\u4e86\uff0c\u67e5\u4e86\u4e00\u4e9b\u8d44\u6599\u5f88\u591a\u5efa\u8bae\u4e0d\u4f7f\u7528\u8fd9\u4e2a\u8bed\u53e5\uff0c\u8fd8\u4e0d\u5982\u5148 select \u51fa\u6765\u518d\u5224\u65ad\u662f update \u8fd8\u662f insert \u3002<\/p>\n

\u65e2\u7136\u5982\u6b64 \u8fd9\u4e2a\u8bed\u53e5\u8fd8\u6709\u5565\u7528… \u5927\u4f6c\u4eec\u8fd8\u6709\u5176\u5b83\u89e3\u51b3\u65b9\u6848\u5417<\/p>\n<\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (9<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
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    \u8cc7\u6df1\u5927\u4f6c : angryfish <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u8be5\u6b7b\u9501\uff0cupdate \u7684\u65f6\u5019\u4e00\u6837\u6b7b\u9501 <\/div>\n<\/p><\/div>\n<\/li>\n
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    \u8cc7\u6df1\u5927\u4f6c : msg7086 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6709\u5565\u7528\uff1f\u5355\u7ebf\u7a0b\u7684\u65f6\u5019\u4e0d\u5c31\u6709\u7528\u4e86\u5417\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : meteor957 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @msg7086 \u6709\u9053\u7406 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : meteor957 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @angryfish update \u53ea\u52a0 X \u9501\u4e5f\u4f1a\u51fa\u73b0\u8fd9\u79cd\u60c5\u51b5\u5417\uff0c\u8be5\u5982\u4f55\u907f\u514d\u5462 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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    \u8cc7\u6df1\u5927\u4f6c : xhinliang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u8bf4\u4e0b\u6211\u7684\u51e0\u4e2a\u89e3\u51b3\u65b9\u6848\uff1a
    1. insert ignore\uff0c\u5224\u65ad\u8fd4\u56de\u503c\uff0c\u5982\u679c affected row > 0 \u5219\u624b\u52a8 update
    2. \u9694\u79bb\u7ea7\u522b\u964d\u4f4e\u5230 rc <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : meteor957 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @xhinliang \u611f\u8c22\u3002\u6682\u65f6\u52a0\u4e86\u4e00\u4e2a\u72b6\u6001\u6765\u5224\u65ad\u5b9a\u65f6\u5668\u7684 sql \u662f\u5426\u6267\u884c\u5b8c\u6bd5\uff0c\u907f\u514d\u5e76\u53d1\u53bb update… <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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    \u8cc7\u6df1\u5927\u4f6c : xhinliang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @angryfish \u4e0d\u662f\u5f88\u61c2\u4f60\u5728\u8bf4\u4ec0\u4e48\uff0c\u6211\u89c9\u5f97 update \u7684\u65f6\u5019\u4e0d\u4f1a\u6b7b\u9501\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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    \u8cc7\u6df1\u5927\u4f6c : susecjh <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u662f\u7684\uff0c\u786e\u5b9e\u662f\u4f1a\u9047\u5230\u8fd9\u4e2a\u95ee\u9898\u7684\uff0c\u5199\u5165\u91cf\u6bd4\u8f83\u5927\u5e76\u4e14\u8fd8\u662f\u5e76\u53d1\u662f\u5427 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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    \u8cc7\u6df1\u5927\u4f6c : gaius <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4e24\u4e2a\u4e8b\u52a1\u83b7\u53d6\u9501\u987a\u5e8f\u4e0d\u540c\u5c31\u6709\u51e0\u7387\u6b7b\u9501\uff0c\u89e3\u51b3\u65b9\u6cd5\u8981\u4e48\u786e\u4fdd\u4e8b\u52a1\u52a0\u9501\u987a\u5e8f\u76f8\u540c\uff0c\u4e0d\u80fd\u786e\u4fdd\u53ef\u4ee5\u56de\u6eda\u540e\u91cd\u8bd5 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"

    mysql \u7981\u6b62\u4f7f\u7528 on dup…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/85114"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=85114"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/85114\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=85114"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=85114"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=85114"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}