{"id":200390,"date":"2025-05-06T09:10:49","date_gmt":"2025-05-06T01:10:49","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200390\/"},"modified":"2025-05-06T09:10:49","modified_gmt":"2025-05-06T01:10:49","slug":"sql-%e4%b8%ad%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-update-ignore-%e8%af%ad%e5%8f%a5%e5%bf%bd%e7%95%a5%e6%9b%b4%e6%96%b0%e9%94%99%e8%af%af%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200390\/","title":{"rendered":"SQL \u4e2d\u5982\u4f55\u4f7f\u7528 UPDATE IGNORE \u8bed\u53e5\u5ffd\u7565\u66f4\u65b0\u9519\u8bef\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>SQL \u4e2d\u5982\u4f55\u4f7f\u7528 UPDATE IGNORE \u8bed\u53e5\u5ffd\u7565\u66f4\u65b0\u9519\u8bef\uff1f<\/h1>\n<p>\u5077\u5077\u52aa\u529b\uff0c\u6084\u65e0\u58f0\u606f\u5730\u53d8\u5f3a\uff0c\u7136\u540e\u60ca\u8273\u6240\u6709\u4eba\uff01\u54c8\u54c8\uff0c\u5c0f\u4f19\u4f34\u4eec\u53c8\u6765\u5b66\u4e60\u5566~\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u4e0d\u77e5\u9053\u5927\u5bb6\u5bf9\u5176\u90fd\u6709\u591a\u5c11\u4e86\u89e3\uff0c\u4e0b\u9762\u6211\u4eec\u5c31\u4e00\u8d77\u6765\u770b\u4e00\u5427\uff01\u5f53\u7136\uff0c\u975e\u5e38\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u8bc4\u8bba\uff0c\u7ed9\u51fa\u5408\u7406\u7684\u5efa\u8bae\uff0c\u6211\u4eec\u4e00\u8d77\u5b66\u4e60\uff0c\u4e00\u8d77\u8fdb\u6b65\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241103\/173064532967278d51b0888.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>sql \u4e2d\u5ffd\u7565\u66f4\u65b0\u9519\u8bef\u7684\u8bed\u53e5\uff1aupdate<\/strong><\/p>\n<p>update \u8bed\u53e5\u7c7b\u4f3c\u4e8e insert ignore \u8bed\u6cd5\uff0c\u5b83\u53ef\u4ee5\u8ba9\u4f60\u5728\u53d1\u751f\u9519\u8bef\u65f6\u9009\u62e9\u5ffd\u7565\u66f4\u65b0\uff0c\u800c\u4e0d\u662f\u4e2d\u65ad\u6267\u884c\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528 update ignore\uff1a<\/p>\n<pre>UPDATE [LOW_PRIORITY] [IGNORE] table_reference\nSET assignment_list\n[WHERE where_condition]\n[ORDER BY ...]\n[LIMIT row_count]<\/pre>\n<p>\u8bf7\u6ce8\u610f\uff0c\u6dfb\u52a0\u4e86 ignore \u4fee\u9970\u7b26\u3002\u5b83\u8868\u793a\u5373\u4f7f\u66f4\u65b0\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u9519\u8bef\uff0c\u66f4\u65b0\u8bed\u53e5\u4e5f\u4e0d\u4f1a\u4e2d\u6b62\u3002<\/p>\n<p>\u5728\u4f7f\u7528 ignore \u4fee\u9970\u7b26\u7684\u60c5\u51b5\u4e0b\uff1a<\/p>\n<ul>\n<li>\u5bf9\u4e8e\u552f\u4e00\u952e\u503c\u53d1\u751f\u91cd\u590d\u952e\u51b2\u7a81\u7684\u884c\uff0c\u4e0d\u4f1a\u66f4\u65b0\u8fd9\u4e9b\u884c\u3002<\/li>\n<li>\u5bf9\u4e8e\u66f4\u65b0\u4e3a\u4f1a\u5bfc\u81f4\u6570\u636e\u8f6c\u6362\u9519\u8bef\u7684\u503c\u7684\u884c\uff0c\u5b83\u4eec\u5c06\u66f4\u65b0\u4e3a\u6700\u63a5\u8fd1\u7684\u6709\u6548\u503c\u3002<\/li>\n<\/ul>\n<p>\u6709\u5173 ignore \u5bf9\u8bed\u53e5\u6267\u884c\u7684\u5f71\u54cd\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u53c2\u89c1 [the effect of ignore on statement execution](https:\/\/dev.mysql.com\/doc\/refman\/8.0\/en\/update.html)\u3002<\/p>\n<p>\u4eca\u5929\u5173\u4e8e\u300aSQL \u4e2d\u5982\u4f55\u4f7f\u7528 UPDATE IGNORE \u8bed\u53e5\u5ffd\u7565\u66f4\u65b0\u9519\u8bef\uff1f\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>SQL \u4e2d\u5982\u4f55\u4f7f\u7528 UPDATE&#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":[101],"tags":[],"class_list":["post-200390","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200390","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=200390"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200390\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200390"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200390"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200390"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}