{"id":177129,"date":"2024-11-08T13:35:18","date_gmt":"2024-11-08T05:35:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/177129\/"},"modified":"2024-11-08T13:35:19","modified_gmt":"2024-11-08T05:35:19","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41054-sql%e7%8b%80%e6%85%8b%ef%bc%9a42s22%ef%bc%88er_bad_field_error%ef%bc%89%e5%9c%a8%ef%bc%85s%e4%b8%ad%e7%9a%84","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/177129\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41054 &#8211; SQL\u72c0\u614b\uff1a42S22\uff08ER_BAD_FIELD_ERROR\uff09\u5728\u201c\uff05s\u201d\u4e2d\u7684\u672a\u77e5\u5217\u201c\uff05s\u201d"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41054-sql%e7%8b%80%e6%85%8b%ef%bc%9a42s22%ef%bc%88er_bad_field_error%ef%bc%89%e5%9c%a8%ef%bc%85s%e4%b8%ad%e7%9a%84-rvSaJsqXir\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41054 &#8211; SQL\u72c0\u614b\uff1a42S22\uff08ER_BAD_FIELD_ERROR\uff09\u5728\u201c\uff05s\u201d\u4e2d\u7684\u672a\u77e5\u5217\u201c\uff05s\u201d<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u7d93\u5e38\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa4\u4ee3\u78bc1054\uff0c\u8a72\u932f\u8aa4\u7684SQL\u72c0\u614b\u70ba42S22\uff0c\u8868\u793a\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u4e86\u672a\u77e5\u7684\u5217\u3002\u9019\u7a2e\u932f\u8aa4\u901a\u5e38\u6703\u5c0e\u81f4\u67e5\u8a62\u7121\u6cd5\u57f7\u884c\uff0c\u5f71\u97ff\u61c9\u7528\u7a0b\u5e8f\u7684\u6b63\u5e38\u904b\u884c\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u8a72\u932f\u8aa4\u7684\u6210\u56e0\u53ca\u5176\u4fee\u5fa9\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a41054%e7%9a%84%e6%88%90%e5%9b%a0-rvSaJsqXir\">\u932f\u8aa41054\u7684\u6210\u56e0<\/h2>\n<p>\u932f\u8aa41054\u7684\u4e3b\u8981\u539f\u56e0\u662f\u67e5\u8a62\u4e2d\u5f15\u7528\u4e86\u4e0d\u5b58\u5728\u7684\u5217\u3002\u9019\u53ef\u80fd\u662f\u7531\u65bc\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\u9020\u6210\u7684\uff1a<\/p>\n<ul>\n<li><strong>\u62fc\u5beb\u932f\u8aa4\uff1a<\/strong>\u5728SQL\u67e5\u8a62\u4e2d\uff0c\u5217\u540d\u7684\u62fc\u5beb\u932f\u8aa4\u662f\u6700\u5e38\u898b\u7684\u539f\u56e0\u4e4b\u4e00\u3002\u958b\u767c\u8005\u53ef\u80fd\u6703\u4e0d\u5c0f\u5fc3\u8f38\u5165\u932f\u8aa4\u7684\u5217\u540d\uff0c\u5c0e\u81f4MySQL\u7121\u6cd5\u8b58\u5225\u3002<\/li>\n<li><strong>\u5217\u540d\u8b8a\u66f4\uff1a<\/strong>\u5982\u679c\u5728\u6578\u64da\u5eab\u4e2d\u5c0d\u8868\u7d50\u69cb\u9032\u884c\u4e86\u4fee\u6539\uff0c\u4f8b\u5982\u522a\u9664\u6216\u91cd\u547d\u540d\u4e86\u67d0\u500b\u5217\uff0c\u5247\u539f\u6709\u7684\u67e5\u8a62\u5c07\u7121\u6cd5\u627e\u5230\u8a72\u5217\u3002<\/li>\n<li><strong>\u4f7f\u7528\u4e86\u932f\u8aa4\u7684\u8868\uff1a<\/strong>\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u4e86\u932f\u8aa4\u7684\u8868\u540d\uff0c\u6216\u8005\u5728JOIN\u64cd\u4f5c\u4e2d\u672a\u6b63\u78ba\u6307\u5b9a\u8868\u7684\u5225\u540d\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4MySQL\u7121\u6cd5\u627e\u5230\u6307\u5b9a\u7684\u5217\u3002<\/li>\n<li><strong>\u6578\u64da\u5eab\u4e0a\u4e0b\u6587\u932f\u8aa4\uff1a<\/strong>\u5982\u679c\u5728\u591a\u500b\u6578\u64da\u5eab\u4e4b\u9593\u5207\u63db\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u67e5\u8a62\u5728\u932f\u8aa4\u7684\u6578\u64da\u5eab\u4e0a\u4e0b\u6587\u4e2d\u57f7\u884c\uff0c\u5f9e\u800c\u7121\u6cd5\u627e\u5230\u6240\u9700\u7684\u5217\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a41054-rvSaJsqXir\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa41054<\/h2>\n<p>\u4fee\u5fa9MySQL\u932f\u8aa41054\u7684\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5sql%e6%9f%a5%e8%a9%a2-rvSaJsqXir\">1. \u6aa2\u67e5SQL\u67e5\u8a62<\/h3>\n<pre><code>SELECT column_name FROM table_name WHERE condition;<\/code><\/pre>\n<p>\u9996\u5148\uff0c\u4ed4\u7d30\u6aa2\u67e5SQL\u67e5\u8a62\u4e2d\u7684\u5217\u540d\u548c\u8868\u540d\u3002\u78ba\u4fdd\u6240\u6709\u7684\u5217\u540d\u90fd\u6b63\u78ba\u7121\u8aa4\uff0c\u4e26\u4e14\u8207\u6578\u64da\u5eab\u4e2d\u7684\u5be6\u969b\u5217\u540d\u4e00\u81f4\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u67e5\u770b\u8868\u7684\u7d50\u69cb\uff1a<\/p>\n<pre><code>DESCRIBE table_name;<\/code><\/pre>\n<h3 id=\"2-%e7%a2%ba%e8%aa%8d%e5%88%97%e7%9a%84%e5%ad%98%e5%9c%a8%e6%80%a7-rvSaJsqXir\">2. \u78ba\u8a8d\u5217\u7684\u5b58\u5728\u6027<\/h3>\n<p>\u5982\u679c\u767c\u73fe\u67d0\u500b\u5217\u540d\u5728\u67e5\u8a62\u4e2d\u51fa\u73fe\uff0c\u4f46\u5728\u8868\u7d50\u69cb\u4e2d\u4e26\u4e0d\u5b58\u5728\uff0c\u5247\u9700\u8981\u78ba\u8a8d\u8a72\u5217\u662f\u5426\u88ab\u522a\u9664\u6216\u91cd\u547d\u540d\u3002\u53ef\u4ee5\u901a\u904e\u67e5\u770b\u6578\u64da\u5eab\u7684\u8b8a\u66f4\u6b77\u53f2\u4f86\u4e86\u89e3\u5217\u7684\u8b8a\u66f4\u60c5\u6cc1\u3002<\/p>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e8%a1%a8%e5%90%8d%e5%92%8c%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%8a%e4%b8%8b%e6%96%87-rvSaJsqXir\">3. \u6aa2\u67e5\u8868\u540d\u548c\u6578\u64da\u5eab\u4e0a\u4e0b\u6587<\/h3>\n<p>\u78ba\u4fdd\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u7684\u8868\u540d\u6b63\u78ba\uff0c\u4e26\u4e14\u5728\u6b63\u78ba\u7684\u6578\u64da\u5eab\u4e0a\u4e0b\u6587\u4e2d\u57f7\u884c\u67e5\u8a62\u3002\u5982\u679c\u9700\u8981\u5728\u7279\u5b9a\u6578\u64da\u5eab\u4e2d\u57f7\u884c\u67e5\u8a62\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>USE database_name;<\/code><\/pre>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e5%88%a5%e5%90%8d%e6%99%82%e7%9a%84%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-rvSaJsqXir\">4. \u4f7f\u7528\u5225\u540d\u6642\u7684\u6ce8\u610f\u4e8b\u9805<\/h3>\n<p>\u5728\u4f7f\u7528JOIN\u64cd\u4f5c\u6642\uff0c\u78ba\u4fdd\u6b63\u78ba\u4f7f\u7528\u8868\u7684\u5225\u540d\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT a.column_name FROM table_a AS a JOIN table_b AS b ON a.id = b.id;<\/code><\/pre>\n<p>\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u5fc5\u9808\u4f7f\u7528\u5225\u540d\u4f86\u5f15\u7528\u5217\uff0c\u5426\u5247\u53ef\u80fd\u6703\u5c0e\u81f4\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-rvSaJsqXir\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41054\uff08ER_BAD_FIELD_ERROR\uff09\u901a\u5e38\u662f\u7531\u65bc\u67e5\u8a62\u4e2d\u5f15\u7528\u4e86\u4e0d\u5b58\u5728\u7684\u5217\u6240\u5f15\u8d77\u7684\u3002\u901a\u904e\u4ed4\u7d30\u6aa2\u67e5SQL\u67e5\u8a62\u3001\u78ba\u8a8d\u5217\u7684\u5b58\u5728\u6027\u3001\u6aa2\u67e5\u8868\u540d\u548c\u6578\u64da\u5eab\u4e0a\u4e0b\u6587\uff0c\u4ee5\u53ca\u6b63\u78ba\u4f7f\u7528\u5225\u540d\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u904b\u884c\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u9ad8\u53ef\u7528\u6027\u548c\u6027\u80fd\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41054\uff0c\u89e3\u6c7aSQL\u72c0\u614b42S22\uff08ER_BAD_FIELD_ERROR\uff09\u4e2d\u63d0\u5230\u7684\u672a\u77e5\u5217\u554f\u984c\uff0c\u63d0\u5347\u6578\u64da\u5eab\u64cd\u4f5c\u6548\u7387\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-177129","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177129","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=177129"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177129\/revisions"}],"predecessor-version":[{"id":177130,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177129\/revisions\/177130"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=177129"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=177129"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=177129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}