{"id":177213,"date":"2024-11-08T14:17:26","date_gmt":"2024-11-08T06:17:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/177213\/"},"modified":"2024-11-08T14:17:26","modified_gmt":"2024-11-08T06:17:26","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41096-sql%e7%8b%80%e6%85%8b%ef%bc%9ahy000%ef%bc%88er_no_tables_used%ef%bc%89%e6%9c%aa%e4%bd%bf%e7%94%a8%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/177213\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41096 &#8211; SQL\u72c0\u614b\uff1aHY000\uff08ER_NO_TABLES_USED\uff09\u672a\u4f7f\u7528\u8868"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41096-sql%e7%8b%80%e6%85%8b%ef%bc%9ahy000%ef%bc%88er_no_tables_used%ef%bc%89%e6%9c%aa%e4%bd%bf%e7%94%a8%e8%a1%a8-YhvJWTKZoL\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41096 &#8211; SQL\u72c0\u614b\uff1aHY000\uff08ER_NO_TABLES_USED\uff09\u672a\u4f7f\u7528\u8868<\/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\u8aa41096\uff0c\u8a72\u932f\u8aa4\u7684SQL\u72c0\u614b\u70baHY000\uff0c\u8868\u793a\u201c\u672a\u4f7f\u7528\u8868\u201d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u57f7\u884cSQL\u67e5\u8a62\u6642\uff0c\u7576\u67e5\u8a62\u4e2d\u6c92\u6709\u6307\u5b9a\u4efb\u4f55\u8868\u6642\uff0cMySQL\u7121\u6cd5\u57f7\u884c\u8a72\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u6b64\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a41096%e7%9a%84%e5%8e%9f%e5%9b%a0-YhvJWTKZoL\">\u932f\u8aa41096\u7684\u539f\u56e0<\/h2>\n<p>\u932f\u8aa41096\u7684\u4e3b\u8981\u539f\u56e0\u662fSQL\u67e5\u8a62\u4e2d\u7f3a\u5c11\u8868\u7684\u5f15\u7528\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u57f7\u884c\u7684\u67e5\u8a62\u662fSELECT\u3001UPDATE\u6216DELETE\u7b49\u64cd\u4f5c\uff0c\u4f46\u6c92\u6709\u6307\u5b9aFROM\u5b50\u53e5\u3002<\/li>\n<li>\u5728JOIN\u64cd\u4f5c\u4e2d\uff0c\u672a\u6b63\u78ba\u6307\u5b9a\u6240\u6709\u53c3\u8207\u7684\u8868\u3002<\/li>\n<li>\u4f7f\u7528\u4e86\u4e0d\u6b63\u78ba\u7684SQL\u8a9e\u6cd5\uff0c\u5c0e\u81f4MySQL\u7121\u6cd5\u8b58\u5225\u8868\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u67e5\u8a62\u5c07\u5c0e\u81f4\u932f\u8aa41096\uff1a<\/p>\n<pre><code>SELECT * WHERE id = 1;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c\u7f3a\u5c11FROM\u5b50\u53e5\uff0c\u56e0\u6b64MySQL\u7121\u6cd5\u78ba\u5b9a\u8981\u5f9e\u54ea\u500b\u8868\u4e2d\u9078\u64c7\u6578\u64da\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a41096-YhvJWTKZoL\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa41096<\/h2>\n<p>\u8981\u4fee\u5fa9\u932f\u8aa41096\uff0c\u958b\u767c\u8005\u9700\u8981\u6aa2\u67e5SQL\u67e5\u8a62\u4e26\u78ba\u4fdd\u6b63\u78ba\u4f7f\u7528\u8868\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e6%b7%bb%e5%8a%a0from%e5%ad%90%e5%8f%a5-YhvJWTKZoL\">1. \u6dfb\u52a0FROM\u5b50\u53e5<\/h3>\n<p>\u78ba\u4fdd\u5728SELECT\u3001UPDATE\u6216DELETE\u67e5\u8a62\u4e2d\u5305\u542bFROM\u5b50\u53e5\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE id = 1;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c\u6211\u5011\u660e\u78ba\u6307\u5b9a\u4e86\u8981\u5f9e\u201cusers\u201d\u8868\u4e2d\u9078\u64c7\u6578\u64da\uff0c\u9019\u6a23\u5c31\u4e0d\u6703\u51fa\u73fe\u932f\u8aa41096\u3002<\/p>\n<h3 id=\"2-%e6%aa%a2%e6%9f%a5join%e8%aa%9e%e5%8f%a5-YhvJWTKZoL\">2. \u6aa2\u67e5JOIN\u8a9e\u53e5<\/h3>\n<p>\u5982\u679c\u4f7f\u7528JOIN\u64cd\u4f5c\uff0c\u8acb\u78ba\u4fdd\u6240\u6709\u8868\u90fd\u6b63\u78ba\u6307\u5b9a\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT a.*, b.* FROM users a JOIN orders b ON a.id = b.user_id;<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c\u6211\u5011\u6b63\u78ba\u5730\u6307\u5b9a\u4e86\u201cusers\u201d\u548c\u201corders\u201d\u5169\u500b\u8868\uff0c\u4e26\u4e14\u4f7f\u7528\u4e86JOIN\u8a9e\u53e5\u4f86\u9023\u63a5\u5b83\u5011\u3002<\/p>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5sql%e8%aa%9e%e6%b3%95-YhvJWTKZoL\">3. \u6aa2\u67e5SQL\u8a9e\u6cd5<\/h3>\n<p>\u6709\u6642\u5019\uff0c\u932f\u8aa4\u7684SQL\u8a9e\u6cd5\u4e5f\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002\u8acb\u4ed4\u7d30\u6aa2\u67e5\u67e5\u8a62\u7684\u8a9e\u6cd5\uff0c\u78ba\u4fdd\u6240\u6709\u95dc\u9375\u5b57\u548c\u7d50\u69cb\u90fd\u662f\u6b63\u78ba\u7684\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a41096-YhvJWTKZoL\">\u793a\u4f8b\uff1a\u4fee\u5fa9\u932f\u8aa41096<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u67e5\u8a62\u5982\u4e0b\uff1a<\/p>\n<pre><code>UPDATE users SET name = 'John' WHERE id = 1;<\/code><\/pre>\n<p>\u5982\u679c\u9019\u500b\u67e5\u8a62\u8fd4\u56de\u932f\u8aa41096\uff0c\u5247\u53ef\u80fd\u662f\u56e0\u70ba\u6211\u5011\u5728\u67d0\u500b\u5730\u65b9\u907a\u6f0f\u4e86FROM\u5b50\u53e5\u3002\u6b63\u78ba\u7684\u67e5\u8a62\u61c9\u8a72\u662f\uff1a<\/p>\n<pre><code>UPDATE users SET name = 'John' WHERE id = 1;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u67e5\u8a62\u672c\u8eab\u662f\u6b63\u78ba\u7684\uff0c\u4f46\u5982\u679c\u5728\u5176\u4ed6\u4e0a\u4e0b\u6587\u4e2d\u4f7f\u7528\uff0c\u5247\u9700\u8981\u78ba\u4fdd\u6240\u6709\u8868\u90fd\u88ab\u6b63\u78ba\u5f15\u7528\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-YhvJWTKZoL\">\u7e3d\u7d50<\/h2>\n<p>\u932f\u8aa41096\uff08SQL\u72c0\u614b\uff1aHY000\uff09\u901a\u5e38\u662f\u7531\u65bc\u672a\u4f7f\u7528\u8868\u800c\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5SQL\u67e5\u8a62\u4e2d\u7684FROM\u5b50\u53e5\u3001JOIN\u8a9e\u53e5\u548c\u8a9e\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5c0d\u65bc\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u7406\u89e3\u9019\u4e9b\u57fa\u672c\u6982\u5ff5\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u4ee5\u907f\u514d\u5728\u65e5\u5e38\u5de5\u4f5c\u4e2d\u9047\u5230\u985e\u4f3c\u7684\u554f\u984c\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f\u6578\u64da\u5eab\u7ba1\u7406\u9084\u662f\u7db2\u7ad9\u6258\u7ba1\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41096\uff08HY000\uff09\uff0c\u89e3\u6c7a\u672a\u4f7f\u7528\u8868\u7684\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u67e5\u8a62\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-177213","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177213","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=177213"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177213\/revisions"}],"predecessor-version":[{"id":177214,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177213\/revisions\/177214"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=177213"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=177213"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=177213"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}