{"id":177039,"date":"2024-11-08T12:50:18","date_gmt":"2024-11-08T04:50:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/177039\/"},"modified":"2024-11-08T12:50:19","modified_gmt":"2024-11-08T04:50:19","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41009-sql%e7%8b%80%e6%85%8b%ef%bc%9ahy000%ef%bc%88er_db_drop_delete%ef%bc%89%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a4","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/177039\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41009 &#8211; SQL\u72c0\u614b\uff1aHY000\uff08ER_DB_DROP_DELETE\uff09\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa4\u522a\u9664\u6578\u64da\u5eab\uff08\u7121\u6cd5\u522a\u9664\u201c\uff05s\u201d\uff0cerrno\uff1a%d\uff09"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41009-sql%e7%8b%80%e6%85%8b%ef%bc%9ahy000%ef%bc%88er_db_drop_delete%ef%bc%89-cQvfPbSSHO\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41009 &#8211; SQL\u72c0\u614b\uff1aHY000\uff08ER_DB_DROP_DELETE\uff09<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u60a8\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u662f\u932f\u8aa41009\uff0c\u8a72\u932f\u8aa4\u7684SQL\u72c0\u614b\u70baHY000\uff0c\u4e26\u986f\u793a\u70ba\u201c\u7121\u6cd5\u522a\u9664\u2018%s\u2019\uff0cerrno\uff1a%d\u201d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u5617\u8a66\u522a\u9664\u6578\u64da\u5eab\u6642\uff0c\u537b\u56e0\u70ba\u67d0\u4e9b\u539f\u56e0\u800c\u7121\u6cd5\u6210\u529f\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a41009%e7%9a%84%e5%8e%9f%e5%9b%a0-cQvfPbSSHO\">\u932f\u8aa41009\u7684\u539f\u56e0<\/h2>\n<p>MySQL\u932f\u8aa41009\u901a\u5e38\u662f\u7531\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\u5f15\u8d77\u7684\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u5eab\u6b63\u5728\u4f7f\u7528\u4e2d\uff1a<\/strong>\u5982\u679c\u6709\u5176\u4ed6\u9023\u63a5\u6b63\u5728\u4f7f\u7528\u8a72\u6578\u64da\u5eab\uff0c\u5247\u7121\u6cd5\u522a\u9664\u5b83\u3002MySQL\u4e0d\u5141\u8a31\u522a\u9664\u6b63\u5728\u88ab\u4f7f\u7528\u7684\u6578\u64da\u5eab\u3002<\/li>\n<li><strong>\u6b0a\u9650\u554f\u984c\uff1a<\/strong>\u7528\u6236\u53ef\u80fd\u6c92\u6709\u8db3\u5920\u7684\u6b0a\u9650\u4f86\u522a\u9664\u8a72\u6578\u64da\u5eab\u3002\u78ba\u4fdd\u60a8\u4f7f\u7528\u7684\u5e33\u6236\u5177\u6709DROP DATABASE\u7684\u6b0a\u9650\u3002<\/li>\n<li><strong>\u6578\u64da\u5eab\u640d\u58de\uff1a<\/strong>\u5982\u679c\u6578\u64da\u5eab\u6587\u4ef6\u640d\u58de\uff0cMySQL\u53ef\u80fd\u7121\u6cd5\u6b63\u78ba\u8655\u7406\u522a\u9664\u8acb\u6c42\u3002<\/li>\n<li><strong>\u5916\u9375\u7d04\u675f\uff1a<\/strong>\u5982\u679c\u6578\u64da\u5eab\u4e2d\u5b58\u5728\u5916\u9375\u7d04\u675f\uff0c\u9019\u53ef\u80fd\u6703\u963b\u6b62\u6578\u64da\u5eab\u7684\u522a\u9664\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a41009-cQvfPbSSHO\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa41009<\/h2>\n<p>\u8981\u4fee\u5fa9MySQL\u932f\u8aa41009\uff0c\u60a8\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u9032\u884c\u64cd\u4f5c\uff1a<\/p>\n<h3 id=\"1-%e7%a2%ba%e8%aa%8d%e6%95%b8%e6%93%9a%e5%ba%ab%e6%98%af%e5%90%a6%e6%ad%a3%e5%9c%a8%e4%bd%bf%e7%94%a8-cQvfPbSSHO\">1. \u78ba\u8a8d\u6578\u64da\u5eab\u662f\u5426\u6b63\u5728\u4f7f\u7528<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u6aa2\u67e5\u662f\u5426\u6709\u5176\u4ed6\u7528\u6236\u6216\u61c9\u7528\u7a0b\u5e8f\u6b63\u5728\u4f7f\u7528\u8a72\u6578\u64da\u5eab\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b\u7576\u524d\u7684\u9023\u63a5\uff1a<\/p>\n<pre><code>SHOW PROCESSLIST;<\/code><\/pre>\n<p>\u5982\u679c\u767c\u73fe\u6709\u9023\u63a5\u6b63\u5728\u4f7f\u7528\u8a72\u6578\u64da\u5eab\uff0c\u60a8\u53ef\u4ee5\u9078\u64c7\u7d42\u6b62\u9019\u4e9b\u9023\u63a5\uff0c\u7136\u5f8c\u518d\u5617\u8a66\u522a\u9664\u6578\u64da\u5eab\u3002<\/p>\n<h3 id=\"2-%e6%aa%a2%e6%9f%a5%e7%94%a8%e6%88%b6%e6%ac%8a%e9%99%90-cQvfPbSSHO\">2. \u6aa2\u67e5\u7528\u6236\u6b0a\u9650<\/h3>\n<p>\u78ba\u4fdd\u60a8\u64c1\u6709\u8db3\u5920\u7684\u6b0a\u9650\u4f86\u522a\u9664\u6578\u64da\u5eab\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\u7576\u524d\u7528\u6236\u7684\u6b0a\u9650\uff1a<\/p>\n<pre><code>SHOW GRANTS FOR CURRENT_USER;<\/code><\/pre>\n<p>\u5982\u679c\u60a8\u6c92\u6709DROP DATABASE\u7684\u6b0a\u9650\uff0c\u8acb\u806f\u7e6b\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u4ee5\u7372\u53d6\u5fc5\u8981\u7684\u6b0a\u9650\u3002<\/p>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%ae%8c%e6%95%b4%e6%80%a7-cQvfPbSSHO\">3. \u6aa2\u67e5\u6578\u64da\u5eab\u7684\u5b8c\u6574\u6027<\/h3>\n<p>\u5982\u679c\u6578\u64da\u5eab\u640d\u58de\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u4fee\u5fa9\u5b83\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\u548c\u4fee\u5fa9\u6578\u64da\u5eab\uff1a<\/p>\n<pre><code>CHECK TABLE your_table_name;<\/code><\/pre>\n<pre><code>REPAIR TABLE your_table_name;<\/code><\/pre>\n<p>\u8acb\u5c07\u201cyour_table_name\u201d\u66ff\u63db\u70ba\u60a8\u8981\u6aa2\u67e5\u7684\u5177\u9ad4\u8868\u540d\u3002<\/p>\n<h3 id=\"4-%e8%99%95%e7%90%86%e5%a4%96%e9%8d%b5%e7%b4%84%e6%9d%9f-cQvfPbSSHO\">4. \u8655\u7406\u5916\u9375\u7d04\u675f<\/h3>\n<p>\u5982\u679c\u6578\u64da\u5eab\u4e2d\u5b58\u5728\u5916\u9375\u7d04\u675f\uff0c\u60a8\u9700\u8981\u5148\u522a\u9664\u9019\u4e9b\u7d04\u675f\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u627e\u5916\u9375\u7d04\u675f\uff1a<\/p>\n<pre><code>SELECT CONSTRAINT_NAME \nFROM information_schema.KEY_COLUMN_USAGE \nWHERE TABLE_NAME = 'your_table_name';<\/code><\/pre>\n<p>\u7136\u5f8c\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u522a\u9664\u5916\u9375\u7d04\u675f\uff1a<\/p>\n<pre><code>ALTER TABLE your_table_name DROP FOREIGN KEY constraint_name;<\/code><\/pre>\n<p>\u5b8c\u6210\u5f8c\uff0c\u60a8\u5c31\u53ef\u4ee5\u5617\u8a66\u518d\u6b21\u522a\u9664\u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-cQvfPbSSHO\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41009\uff08SQL\u72c0\u614b\uff1aHY000\uff09\u901a\u5e38\u662f\u7531\u65bc\u6578\u64da\u5eab\u6b63\u5728\u4f7f\u7528\u4e2d\u3001\u6b0a\u9650\u4e0d\u8db3\u3001\u6578\u64da\u5eab\u640d\u58de\u6216\u5916\u9375\u7d04\u675f\u7b49\u539f\u56e0\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u7576\u524d\u9023\u63a5\u3001\u78ba\u8a8d\u7528\u6236\u6b0a\u9650\u3001\u6aa2\u67e5\u6578\u64da\u5eab\u5b8c\u6574\u6027\u4ee5\u53ca\u8655\u7406\u5916\u9375\u7d04\u675f\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u6578\u64da\u5eab\u7ba1\u7406\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u5c07\u662f\u660e\u667a\u7684\u9078\u64c7\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u60a8\u7684\u6578\u64da\u5eab\u904b\u884c\u9806\u5229\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9MySQL\u932f\u8aa41009\uff08HY000\uff09\u7684\u65b9\u6cd5\uff0c\u89e3\u6c7a\u7121\u6cd5\u522a\u9664\u6578\u64da\u5eab\u7684\u554f\u984c\uff0c\u63d0\u4f9b\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u548c\u6b65\u9a5f\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-177039","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177039","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=177039"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177039\/revisions"}],"predecessor-version":[{"id":177040,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177039\/revisions\/177040"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=177039"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=177039"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=177039"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}