{"id":27676,"date":"2024-11-24T16:05:14","date_gmt":"2024-11-24T08:05:14","guid":{"rendered":"https:\/\/fwq.ai\/blog\/27676\/"},"modified":"2024-11-24T16:05:14","modified_gmt":"2024-11-24T08:05:14","slug":"mysql-%e5%a6%82%e4%bd%95%e5%9c%a8%e5%8d%95%e5%88%97%e4%b8%ad%e5%ad%98%e5%82%a8%e5%a4%9a%e5%80%bc%e6%95%b0%e6%8d%ae%ef%bc%9f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/27676\/","title":{"rendered":"MySQL \u5982\u4f55\u5728\u5355\u5217\u4e2d\u5b58\u50a8\u591a\u503c\u6570\u636e\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173130465086130.jpg\" class=\"aligncenter\" title=\"MySQL \u5982\u4f55\u5728\u5355\u5217\u4e2d\u5b58\u50a8\u591a\u503c\u6570\u636e\uff1f\u63d2\u56fe\" alt=\"MySQL \u5982\u4f55\u5728\u5355\u5217\u4e2d\u5b58\u50a8\u591a\u503c\u6570\u636e\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528  \u5728\u5355\u5217\u4e2d\u5b58\u50a8\u591a\u503c\u6570\u636e<\/strong><\/p>\n<p>\u5728 mysql \u4e2d\uff0c\u7ecf\u5e38\u9047\u5230\u9700\u8981\u5b58\u50a8\u591a\u503c\u6570\u636e\u7684\u60c5\u51b5\uff0c\u4f8b\u5982\u5728\u4e00\u4e2a\u5217\u4e2d\u5b58\u50a8\u591a\u4e2a\u7528\u6237 id\u3002\u4e3a\u4e86\u6ee1\u8db3\u8fd9\u79cd\u9700\u6c42\uff0c\u672c\u6587\u4ecb\u7ecd\u4e86\u5982\u4f55\u8bbe\u7f6e\u8868\u7ed3\u6784\u548c\u6570\u636e\u7c7b\u578b\u4ee5\u5b9e\u73b0\u6b64\u76ee\u7684\u3002<\/p>\n<p>\u5728\u63d0\u4f9b\u7684\u6848\u4f8b\u4e2d\uff0c\u6211\u4eec\u9700\u8981\u4e3a\u9519\u9898\u8868\u521b\u5efa\u5173\u7cfb\u8868\uff0c\u5176\u4e2d\u5b58\u50a8\u7528\u6237 id \u548c\u9898\u5e93 id\u3002\u201c\u9519\u9898\u8868\u201d\u7684\u8bbe\u8ba1\u5982\u4e0b\uff1a<\/p>\n<pre>CREATE TABLE mistake_record (\n  user_id int NOT NULL,\n  question_id int NOT NULL\n);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5728\u8fd9\u4e2a\u8868\u7ed3\u6784\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 int \u6570\u636e\u7c7b\u578b\u5b58\u50a8 user_id \u548c question_id\uff0c\u5e76\u5c06\u5176\u8bbe\u7f6e\u4e3a not null \u4ee5\u786e\u4fdd\u6570\u636e\u5b8c\u6574\u6027\u3002\u6b64\u8868\u5b58\u50a8\u4e86\u7528\u6237\u548c\u9519\u9898\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u5141\u8bb8\u6211\u4eec\u901a\u8fc7\u8fde\u63a5\u67e5\u8be2\u8f7b\u677e\u83b7\u53d6\u7528\u6237\u7684\u9519\u9898\u3002<\/p>\n<p>\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u591a\u4e2a\u7528\u6237 id \u4f5c\u4e3a\u5355\u503c\u5b58\u50a8\u5728 mistake_record \u8868\u7684 user_id \u5217\u4e2d\uff0c\u6709\u6548\u5730\u5b9e\u73b0\u4e86\u5728\u5355\u5217\u4e2d\u5b58\u50a8\u591a\u503c\u6570\u636e\u7684\u9700\u6c42\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fMySQL \u5982\u4f55\u5728\u5355\u5217\u4e2d\u5b58\u50a8\u591a\u503c\u6570\u636e\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>\u5982\u4f55\u4f7f\u7528 \u5728\u5355\u5217\u4e2d\u5b58\u50a8\u591a\u503c\u6570\u636e \u5728 mysql \u4e2d\uff0c\u7ecf\u5e38\u9047\u5230\u9700\u8981\u5b58\u50a8\u591a\u503c\u6570\u636e\u7684\u60c5\u51b5\uff0c\u4f8b\u5982\u5728\u4e00\u4e2a\u5217\u4e2d\u5b58\u50a8\u591a\u4e2a\u7528\u6237 id\u3002\u4e3a\u4e86\u6ee1\u8db3\u8fd9\u79cd\u9700\u6c42\uff0c\u672c\u6587\u4ecb\u7ecd\u4e86\u5982\u4f55\u8bbe\u7f6e\u8868\u7ed3\u6784\u548c\u6570\u636e\u7c7b\u578b\u4ee5\u5b9e\u73b0\u6b64\u76ee\u7684\u3002 \u5728\u63d0\u4f9b\u7684\u6848\u4f8b\u4e2d\uff0c\u6211\u4eec\u9700\u8981\u4e3a\u9519\u9898\u8868\u521b\u5efa\u5173\u7cfb\u8868\uff0c\u5176\u4e2d\u5b58\u50a8\u7528\u6237 id \u548c\u9898\u5e93 id\u3002\u201c\u9519\u9898\u8868\u201d\u7684\u8bbe\u8ba1\u5982\u4e0b\uff1a CREATE TABLE mistake_record ( user_id int NOT NULL, question_id int NOT NULL ); \u767b\u5f55\u540e\u590d\u5236 \u5728\u8fd9\u4e2a\u8868\u7ed3\u6784\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 int \u6570\u636e\u7c7b\u578b\u5b58\u50a8 user_id \u548c question_id\uff0c\u5e76\u5c06\u5176\u8bbe\u7f6e\u4e3a not null \u4ee5\u786e\u4fdd\u6570\u636e\u5b8c\u6574\u6027\u3002\u6b64\u8868\u5b58\u50a8\u4e86\u7528\u6237\u548c\u9519\u9898\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u5141\u8bb8\u6211\u4eec\u901a\u8fc7\u8fde\u63a5\u67e5\u8be2\u8f7b\u677e\u83b7\u53d6\u7528\u6237\u7684\u9519\u9898\u3002 \u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u591a\u4e2a\u7528\u6237 id \u4f5c\u4e3a\u5355\u503c\u5b58\u50a8\u5728 mistake_record \u8868\u7684 user_id \u5217\u4e2d\uff0c\u6709\u6548\u5730\u5b9e\u73b0\u4e86\u5728\u5355\u5217\u4e2d\u5b58\u50a8\u591a\u503c\u6570\u636e\u7684\u9700\u6c42\u3002 \u4ee5\u4e0a\u5c31\u662fMySQL \u5982\u4f55\u5728\u5355\u5217\u4e2d\u5b58\u50a8\u591a\u503c\u6570\u636e\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},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-27676","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/27676","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=27676"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/27676\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=27676"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=27676"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=27676"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}