{"id":66755,"date":"2024-10-14T20:21:15","date_gmt":"2024-10-14T12:21:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/66755\/"},"modified":"2024-10-14T20:21:16","modified_gmt":"2024-10-14T12:21:16","slug":"mysql-%e9%8c%af%e8%aa%a4%e8%99%9f%ef%bc%9a3756%ef%bc%9b%e7%ac%a6%e8%99%9f%ef%bc%9aer_functional_index_primary_key%ef%bc%9bsqlstate%ef%bc%9ahy000-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/66755\/","title":{"rendered":"MySQL \u932f\u8aa4\u865f\uff1a3756\uff1b\u7b26\u865f\uff1aER_FUNCTIONAL_INDEX_PRIMARY_KEY\uff1bSQLSTATE\uff1aHY000 \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"mysql-%e9%8c%af%e8%aa%a4%e8%99%9f%ef%bc%9a3756%ef%bc%9b%e7%ac%a6%e8%99%9f%ef%bc%9aer_functional_index_primary_key%ef%bc%9bsqlstate%ef%bc%9ahy000-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-zRKHAnIwAH\">MySQL \u932f\u8aa4\u865f\uff1a3756\uff1b\u7b26\u865f\uff1aER_FUNCTIONAL_INDEX_PRIMARY_KEY\uff1bSQLSTATE\uff1aHY000 \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406<\/h1>\n<p>\u5728\u4f7f\u7528 MySQL \u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662f\u932f\u8aa4\u865f 3756\uff0c\u7b26\u865f ER_FUNCTIONAL_INDEX_PRIMARY_KEY\uff0cSQLSTATE \u70ba HY000\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8207\u529f\u80fd\u6027\u7d22\u5f15\u548c\u4e3b\u9375\u7684\u4f7f\u7528\u6709\u95dc\uff0c\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u8a72\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0%e5%88%86%e6%9e%90-zRKHAnIwAH\">\u932f\u8aa4\u539f\u56e0\u5206\u6790<\/h2>\n<p>MySQL \u7684\u529f\u80fd\u6027\u7d22\u5f15\u5141\u8a31\u7528\u6236\u5728\u8868\u7684\u67d0\u4e9b\u5217\u4e0a\u5275\u5efa\u7d22\u5f15\uff0c\u9019\u4e9b\u5217\u7684\u503c\u662f\u901a\u904e\u8868\u9054\u5f0f\u8a08\u7b97\u5f97\u51fa\u7684\u3002\u7136\u800c\uff0c\u7576\u7528\u6236\u5617\u8a66\u5c07\u529f\u80fd\u6027\u7d22\u5f15\u8a2d\u7f6e\u70ba\u4e3b\u9375\u6642\uff0c\u5c31\u6703\u51fa\u73fe\u932f\u8aa4 3756\u3002\u9019\u662f\u56e0\u70ba MySQL \u4e0d\u5141\u8a31\u529f\u80fd\u6027\u7d22\u5f15\u4f5c\u70ba\u4e3b\u9375\uff0c\u56e0\u70ba\u4e3b\u9375\u5fc5\u9808\u662f\u552f\u4e00\u4e14\u4e0d\u53ef\u70ba\u7a7a\u7684\uff0c\u800c\u529f\u80fd\u6027\u7d22\u5f15\u7684\u8a08\u7b97\u7d50\u679c\u53ef\u80fd\u6703\u5c0e\u81f4\u4e0d\u4e00\u81f4\u6027\u3002<\/p>\n<h3 id=\"%e5%85%b7%e9%ab%94%e6%83%85%e6%b3%81-zRKHAnIwAH\">\u5177\u9ad4\u60c5\u6cc1<\/h3>\n<p>\u4f8b\u5982\uff0c\u8003\u616e\u4ee5\u4e0b SQL \u8a9e\u53e5\uff1a<\/p>\n<pre><code>CREATE TABLE example (\n    id INT NOT NULL,\n    name VARCHAR(100),\n    email VARCHAR(100),\n    UNIQUE INDEX idx_email ((LOWER(email)))\n);\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u529f\u80fd\u6027\u7d22\u5f15 idx_email\uff0c\u8a72\u7d22\u5f15\u662f\u57fa\u65bc email \u5217\u7684\u8f49\u63db\uff08\u8f49\u70ba\u5c0f\u5beb\uff09\u3002\u5982\u679c\u7528\u6236\u5617\u8a66\u5c07\u9019\u500b\u7d22\u5f15\u8a2d\u7f6e\u70ba\u4e3b\u9375\uff0c\u5247\u6703\u89f8\u767c\u932f\u8aa4 3756\u3002<\/p>\n<h2 id=\"%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9%e6%ad%a5%e9%a9%9f-zRKHAnIwAH\">\u6545\u969c\u4fee\u5fa9\u6b65\u9a5f<\/h2>\n<p>\u8981\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff0c\u958b\u767c\u8005\u9700\u8981\u9075\u5faa\u4ee5\u4e0b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li><strong>\u6aa2\u67e5\u7d22\u5f15\u5b9a\u7fa9\uff1a<\/strong>\u78ba\u4fdd\u529f\u80fd\u6027\u7d22\u5f15\u4e0d\u88ab\u8a2d\u7f6e\u70ba\u4e3b\u9375\u3002\u53ef\u4ee5\u901a\u904e\u67e5\u8a62\u8868\u7d50\u69cb\u4f86\u78ba\u8a8d\u3002<\/li>\n<li><strong>\u4fee\u6539\u8868\u7d50\u69cb\uff1a<\/strong>\u5982\u679c\u9700\u8981\u5c07\u67d0\u500b\u5217\u8a2d\u7f6e\u70ba\u4e3b\u9375\uff0c\u5247\u61c9\u9078\u64c7\u4e00\u500b\u666e\u901a\u5217\uff0c\u800c\u4e0d\u662f\u529f\u80fd\u6027\u7d22\u5f15\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ul>\n<pre><code>ALTER TABLE example ADD PRIMARY KEY (id);\n<\/code><\/pre>\n<li><strong>\u91cd\u65b0\u8a2d\u8a08\u7d22\u5f15\uff1a<\/strong>\u5982\u679c\u9700\u8981\u4f7f\u7528\u529f\u80fd\u6027\u7d22\u5f15\uff0c\u5247\u61c9\u5c07\u5176\u8a2d\u7f6e\u70ba\u552f\u4e00\u7d22\u5f15\uff0c\u800c\u4e0d\u662f\u4e3b\u9375\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86%e5%bb%ba%e8%ad%b0-zRKHAnIwAH\">\u9060\u7a0b\u8655\u7406\u5efa\u8b70<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u53ef\u80fd\u7121\u6cd5\u76f4\u63a5\u8a2a\u554f\u6578\u64da\u5eab\uff0c\u9019\u6642\u53ef\u4ee5\u8003\u616e\u9060\u7a0b\u8655\u7406\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528 SSH \u9023\u63a5\uff1a<\/strong>\u5982\u679c\u6578\u64da\u5eab\u4f4d\u65bc\u9060\u7a0b\u4f3a\u670d\u5668\u4e0a\uff0c\u53ef\u4ee5\u901a\u904e SSH \u9023\u63a5\u9032\u884c\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u4f7f\u7528\u6578\u64da\u5eab\u7ba1\u7406\u5de5\u5177\uff1a<\/strong>\u5982 phpMyAdmin \u6216 MySQL Workbench\uff0c\u9019\u4e9b\u5de5\u5177\u901a\u5e38\u63d0\u4f9b\u5716\u5f62\u754c\u9762\uff0c\u4fbf\u65bc\u7ba1\u7406\u6578\u64da\u5eab\u3002<\/li>\n<li><strong>\u8a18\u9304\u64cd\u4f5c\uff1a<\/strong>\u5728\u9032\u884c\u4efb\u4f55\u66f4\u6539\u4e4b\u524d\uff0c\u5efa\u8b70\u5099\u4efd\u6578\u64da\u5eab\uff0c\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-zRKHAnIwAH\">\u7e3d\u7d50<\/h2>\n<p>MySQL \u932f\u8aa4\u865f 3756 \u662f\u7531\u65bc\u5617\u8a66\u5c07\u529f\u80fd\u6027\u7d22\u5f15\u8a2d\u7f6e\u70ba\u4e3b\u9375\u800c\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u7d22\u5f15\u5b9a\u7fa9\u3001\u4fee\u6539\u8868\u7d50\u69cb\u548c\u91cd\u65b0\u8a2d\u8a08\u7d22\u5f15\uff0c\u53ef\u4ee5\u6709\u6548\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u5728\u9060\u7a0b\u8655\u7406\u6642\uff0c\u4f7f\u7528 SSH \u9023\u63a5\u548c\u6578\u64da\u5eab\u7ba1\u7406\u5de5\u5177\u53ef\u4ee5\u63d0\u9ad8\u6548\u7387\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u670d\u52d9\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u548c\u53ef\u7528\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a MySQL \u932f\u8aa4\u865f 3756 (ER_FUNCTIONAL_INDEX_PRIMARY_KEY) \u7684\u6545\u969c\uff0c\u63d0\u4f9b\u9060\u7a0b\u8655\u7406\u65b9\u6848\uff0c\u52a9\u60a8\u5feb\u901f\u6062\u5fa9\u6578\u64da\u5eab\u6b63\u5e38\u904b\u884c\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-66755","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66755","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=66755"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66755\/revisions"}],"predecessor-version":[{"id":66756,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66755\/revisions\/66756"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=66755"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=66755"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=66755"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}