{"id":177605,"date":"2024-11-08T15:32:24","date_gmt":"2024-11-08T07:32:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/177605\/"},"modified":"2024-11-08T15:32:24","modified_gmt":"2024-11-08T07:32:24","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41173-sqlstate-42000%ef%bc%88er_requires_primary_key%ef%bc%89%e6%ad%a4%e8%a1%a8%e9%a1%9e%e5%9e%8b%e8%a6%81%e6%b1%82%e6%9c%89%e4%b8%80","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/177605\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41173 &#8211; SQLSTATE: 42000\uff08ER_REQUIRES_PRIMARY_KEY\uff09\u6b64\u8868\u985e\u578b\u8981\u6c42\u6709\u4e00\u500b\u4e3b\u9375"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41173-sqlstate-42000%ef%bc%88er_requires_primary_key%ef%bc%89%e6%ad%a4%e8%a1%a8%e9%a1%9e%e5%9e%8b%e8%a6%81%e6%b1%82%e6%9c%89%e4%b8%80-QcmaEMmhTU\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41173 &#8211; SQLSTATE: 42000\uff08ER_REQUIRES_PRIMARY_KEY\uff09\u6b64\u8868\u985e\u578b\u8981\u6c42\u6709\u4e00\u500b\u4e3b\u9375<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa41173\uff0c\u8a72\u932f\u8aa4\u7684\u63d0\u793a\u4fe1\u606f\u70ba\u201c\u6b64\u8868\u985e\u578b\u8981\u6c42\u6709\u4e00\u500b\u4e3b\u9375\u201d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u5617\u8a66\u5c0d\u4e00\u500b\u6c92\u6709\u4e3b\u9375\u7684\u8868\u9032\u884c\u67d0\u4e9b\u64cd\u4f5c\u6642\uff0c\u4f8b\u5982\u66f4\u65b0\u6216\u522a\u9664\u6578\u64da\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e4%b8%bb%e9%8d%b5%ef%bc%9f-QcmaEMmhTU\">\u4ec0\u9ebc\u662f\u4e3b\u9375\uff1f<\/h2>\n<p>\u4e3b\u9375\u662f\u6578\u64da\u5eab\u8868\u4e2d\u7684\u4e00\u500b\u5b57\u6bb5\uff08\u6216\u5b57\u6bb5\u7d44\u5408\uff09\uff0c\u7528\u65bc\u552f\u4e00\u6a19\u8b58\u8868\u4e2d\u7684\u6bcf\u4e00\u884c\u6578\u64da\u3002\u4e3b\u9375\u7684\u7279\u6027\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u552f\u4e00\u6027\uff1a\u4e3b\u9375\u7684\u503c\u5fc5\u9808\u662f\u552f\u4e00\u7684\uff0c\u4e0d\u80fd\u91cd\u8907\u3002<\/li>\n<li>\u975e\u7a7a\u6027\uff1a\u4e3b\u9375\u7684\u503c\u4e0d\u80fd\u70baNULL\u3002<\/li>\n<li>\u7a69\u5b9a\u6027\uff1a\u4e3b\u9375\u7684\u503c\u61c9\u8a72\u5728\u6578\u64da\u7684\u751f\u547d\u5468\u671f\u5167\u4fdd\u6301\u4e0d\u8b8a\u3002<\/li>\n<\/ul>\n<p>\u5728MySQL\u4e2d\uff0c\u67d0\u4e9b\u8868\u985e\u578b\uff08\u5982InnoDB\uff09\u8981\u6c42\u6bcf\u500b\u8868\u5fc5\u9808\u6709\u4e00\u500b\u4e3b\u9375\u3002\u5982\u679c\u5728\u5275\u5efa\u8868\u6642\u672a\u6307\u5b9a\u4e3b\u9375\uff0c\u5247\u5728\u9032\u884c\u67d0\u4e9b\u64cd\u4f5c\u6642\u5c31\u6703\u51fa\u73fe\u932f\u8aa41173\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a41173%e7%9a%84%e5%8e%9f%e5%9b%a0-QcmaEMmhTU\">\u932f\u8aa41173\u7684\u539f\u56e0<\/h2>\n<p>\u7576\u4f60\u5617\u8a66\u5c0d\u4e00\u500b\u6c92\u6709\u4e3b\u9375\u7684\u8868\u9032\u884c\u66f4\u65b0\u6216\u522a\u9664\u64cd\u4f5c\u6642\uff0cMySQL\u6703\u8fd4\u56de\u932f\u8aa41173\u3002\u9019\u662f\u56e0\u70baMySQL\u9700\u8981\u4e00\u500b\u552f\u4e00\u6a19\u8b58\u7b26\u4f86\u78ba\u5b9a\u8981\u64cd\u4f5c\u7684\u5177\u9ad4\u884c\u3002\u5982\u679c\u6c92\u6709\u4e3b\u9375\uff0c\u6578\u64da\u5eab\u7121\u6cd5\u78ba\u5b9a\u61c9\u8a72\u5f71\u97ff\u54ea\u4e9b\u884c\uff0c\u5f9e\u800c\u5c0e\u81f4\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a41173-QcmaEMmhTU\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa41173<\/h2>\n<p>\u4fee\u5fa9\u932f\u8aa41173\u7684\u6700\u76f4\u63a5\u65b9\u6cd5\u662f\u70ba\u8868\u6dfb\u52a0\u4e3b\u9375\u3002\u4ee5\u4e0b\u662f\u5177\u9ad4\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e7%95%b6%e5%89%8d%e8%a1%a8%e7%b5%90%e6%a7%8b-QcmaEMmhTU\">1. \u6aa2\u67e5\u7576\u524d\u8868\u7d50\u69cb<\/h3>\n<p>\u9996\u5148\uff0c\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u6aa2\u67e5\u8868\u7684\u7d50\u69cb\uff1a<\/p>\n<pre><code>SHOW CREATE TABLE your_table_name;<\/code><\/pre>\n<p>\u9019\u5c07\u986f\u793a\u8868\u7684\u5275\u5efa\u8a9e\u53e5\uff0c\u5305\u62ec\u7576\u524d\u7684\u7d22\u5f15\u548c\u7d04\u675f\u3002<\/p>\n<h3 id=\"2-%e6%b7%bb%e5%8a%a0%e4%b8%bb%e9%8d%b5-QcmaEMmhTU\">2. \u6dfb\u52a0\u4e3b\u9375<\/h3>\n<p>\u5982\u679c\u8868\u4e2d\u6c92\u6709\u4e3b\u9375\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u70ba\u8868\u6dfb\u52a0\u4e3b\u9375\uff1a<\/p>\n<pre><code>ALTER TABLE your_table_name ADD PRIMARY KEY (column_name);<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c`column_name`\u61c9\u66ff\u63db\u70ba\u4f60\u5e0c\u671b\u8a2d\u7f6e\u70ba\u4e3b\u9375\u7684\u5217\u540d\u3002\u8acb\u78ba\u4fdd\u8a72\u5217\u7684\u503c\u662f\u552f\u4e00\u7684\uff0c\u5426\u5247\u5c07\u7121\u6cd5\u6210\u529f\u6dfb\u52a0\u4e3b\u9375\u3002<\/p>\n<h3 id=\"3-%e6%9b%b4%e6%96%b0%e6%88%96%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a-QcmaEMmhTU\">3. \u66f4\u65b0\u6216\u522a\u9664\u6578\u64da<\/h3>\n<p>\u6dfb\u52a0\u4e3b\u9375\u5f8c\uff0c\u4f60\u53ef\u4ee5\u518d\u6b21\u5617\u8a66\u57f7\u884c\u4e4b\u524d\u7684\u66f4\u65b0\u6216\u522a\u9664\u64cd\u4f5c\uff0c\u9019\u6642\u61c9\u8a72\u4e0d\u6703\u518d\u51fa\u73fe\u932f\u8aa41173\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b-QcmaEMmhTU\">\u793a\u4f8b<\/h2>\n<p>\u5047\u8a2d\u4f60\u6709\u4e00\u500b\u540d\u70ba`users`\u7684\u8868\uff0c\u7d50\u69cb\u5982\u4e0b\uff1a<\/p>\n<pre><code>CREATE TABLE users (\n    id INT,\n    name VARCHAR(100)\n);<\/code><\/pre>\n<p>\u5982\u679c\u4f60\u5617\u8a66\u57f7\u884c\u4ee5\u4e0b\u66f4\u65b0\u64cd\u4f5c\uff1a<\/p>\n<pre><code>UPDATE users SET name = 'John' WHERE name = 'Doe';<\/code><\/pre>\n<p>\u5c07\u6703\u51fa\u73fe\u932f\u8aa41173\u3002\u8981\u4fee\u5fa9\u6b64\u932f\u8aa4\uff0c\u4f60\u53ef\u4ee5\u6dfb\u52a0\u4e3b\u9375\uff1a<\/p>\n<pre><code>ALTER TABLE users ADD PRIMARY KEY (id);<\/code><\/pre>\n<p>\u78ba\u4fdd`id`\u5217\u4e2d\u7684\u503c\u662f\u552f\u4e00\u7684\uff0c\u7136\u5f8c\u518d\u6b21\u57f7\u884c\u66f4\u65b0\u64cd\u4f5c\uff0c\u9019\u6642\u5c31\u4e0d\u6703\u518d\u51fa\u73fe\u932f\u8aa4\u4e86\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-QcmaEMmhTU\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41173\u662f\u7531\u65bc\u7f3a\u5c11\u4e3b\u9375\u800c\u5c0e\u81f4\u7684\uff0c\u9019\u4f7f\u5f97\u6578\u64da\u5eab\u7121\u6cd5\u78ba\u5b9a\u8981\u64cd\u4f5c\u7684\u5177\u9ad4\u884c\u3002\u901a\u904e\u70ba\u8868\u6dfb\u52a0\u4e3b\u9375\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u4e86\u89e3\u4e3b\u9375\u7684\u6982\u5ff5\u53ca\u5176\u91cd\u8981\u6027\uff0c\u5c0d\u65bc\u6578\u64da\u5eab\u7684\u8a2d\u8a08\u548c\u64cd\u4f5c\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u4f60\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u6258\u7ba1\u4f60\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u4f60\u7684\u6578\u64da\u5eab\u904b\u884c\u7a69\u5b9a\u4e14\u9ad8\u6548\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9MySQL\u932f\u8aa41173\u7684\u65b9\u6cd5\uff0c\u89e3\u91cb\u5982\u4f55\u70ba\u8868\u6dfb\u52a0\u4e3b\u9375\u4ee5\u6eff\u8db3SQLSTATE: 42000\uff08ER_REQUIRES_PRIMARY_KEY\uff09\u8981\u6c42\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-177605","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177605","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=177605"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177605\/revisions"}],"predecessor-version":[{"id":177606,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177605\/revisions\/177606"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=177605"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=177605"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=177605"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}