{"id":177207,"date":"2024-11-08T14:14:25","date_gmt":"2024-11-08T06:14:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/177207\/"},"modified":"2024-11-08T14:14:26","modified_gmt":"2024-11-08T06:14:26","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41093-sql%e7%8b%80%e6%85%8b%ef%bc%9ahy000%ef%bc%88er_update_table_used%ef%bc%89%e6%82%a8%e4%b8%8d%e8%83%bd%e5%9c%a8from%e5%ad%90%e5%8f%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/177207\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41093 &#8211; SQL\u72c0\u614b\uff1aHY000\uff08ER_UPDATE_TABLE_USED\uff09\u60a8\u4e0d\u80fd\u5728FROM\u5b50\u53e5\u4e2d\u66f4\u65b0\u76ee\u6a19\u8868\u201c\uff05s\u201d"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41093-sql%e7%8b%80%e6%85%8b%ef%bc%9ahy000%ef%bc%88er_update_table_used%ef%bc%89-jkToAXRSqd\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41093 &#8211; SQL\u72c0\u614b\uff1aHY000\uff08ER_UPDATE_TABLE_USED\uff09<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662f\u932f\u8aa41093\uff0c\u8a72\u932f\u8aa4\u7684SQL\u72c0\u614b\u70baHY000\uff0c\u63d0\u793a\u4fe1\u606f\u70ba\u201c\u60a8\u4e0d\u80fd\u5728FROM\u5b50\u53e5\u4e2d\u66f4\u65b0\u76ee\u6a19\u8868\u201d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u5617\u8a66\u66f4\u65b0\u4e00\u500b\u8868\u7684\u540c\u6642\u53c8\u5f9e\u8a72\u8868\u4e2d\u9078\u53d6\u6578\u64da\u6642\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u8a72\u932f\u8aa4\u7684\u6210\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a41093%e7%9a%84%e6%88%90%e5%9b%a0-jkToAXRSqd\">\u932f\u8aa41093\u7684\u6210\u56e0<\/h2>\n<p>\u932f\u8aa41093\u7684\u4e3b\u8981\u539f\u56e0\u662fMySQL\u7684\u9650\u5236\uff0c\u8a72\u9650\u5236\u9632\u6b62\u5728\u540c\u4e00\u67e5\u8a62\u4e2d\u540c\u6642\u5c0d\u4e00\u500b\u8868\u9032\u884c\u66f4\u65b0\u548c\u9078\u53d6\u64cd\u4f5c\u3002\u9019\u662f\u70ba\u4e86\u907f\u514d\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\u767c\u751f\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u7684SQL\u8a9e\u53e5\u6703\u5c0e\u81f4\u932f\u8aa41093\uff1a<\/p>\n<pre><code>UPDATE my_table SET column1 = 'new_value' WHERE id IN (SELECT id FROM my_table WHERE condition);<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0cMySQL\u7121\u6cd5\u540c\u6642\u5f9emy_table\u4e2d\u9078\u53d6id\u4e26\u66f4\u65b0my_table\uff0c\u56e0\u70ba\u9019\u6a23\u53ef\u80fd\u6703\u5c0e\u81f4\u4e0d\u4e00\u81f4\u7684\u6578\u64da\u72c0\u614b\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a41093-jkToAXRSqd\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa41093<\/h2>\n<p>\u8981\u4fee\u5fa9\u9019\u500b\u932f\u8aa4\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u63a1\u53d6\u5e7e\u7a2e\u4e0d\u540c\u7684\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e5%ad%90%e6%9f%a5%e8%a9%a2%e7%9a%84%e8%87%a8%e6%99%82%e8%a1%a8-jkToAXRSqd\">1. \u4f7f\u7528\u5b50\u67e5\u8a62\u7684\u81e8\u6642\u8868<\/h3>\n<p>\u4e00\u7a2e\u5e38\u898b\u7684\u89e3\u6c7a\u65b9\u6848\u662f\u5c07\u9700\u8981\u66f4\u65b0\u7684\u6578\u64da\u5148\u5b58\u5165\u4e00\u500b\u81e8\u6642\u8868\uff0c\u7136\u5f8c\u518d\u5f9e\u81e8\u6642\u8868\u4e2d\u9032\u884c\u66f4\u65b0\u3002\u4ee5\u4e0b\u662f\u793a\u4f8b\u4ee3\u78bc\uff1a<\/p>\n<pre><code>CREATE TEMPORARY TABLE temp_ids AS SELECT id FROM my_table WHERE condition;\nUPDATE my_table SET column1 = 'new_value' WHERE id IN (SELECT id FROM temp_ids);\nDROP TEMPORARY TABLE temp_ids;<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u505a\u6cd5\u53ef\u4ee5\u907f\u514d\u5728\u540c\u4e00\u67e5\u8a62\u4e2d\u540c\u6642\u5c0d\u540c\u4e00\u8868\u9032\u884c\u9078\u53d6\u548c\u66f4\u65b0\u64cd\u4f5c\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8join%e8%aa%9e%e5%8f%a5-jkToAXRSqd\">2. \u4f7f\u7528JOIN\u8a9e\u53e5<\/h3>\n<p>\u53e6\u4e00\u7a2e\u89e3\u6c7a\u65b9\u6848\u662f\u4f7f\u7528JOIN\u8a9e\u53e5\u4f86\u9032\u884c\u66f4\u65b0\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u76f4\u63a5\u5728FROM\u5b50\u53e5\u4e2d\u5f15\u7528\u76ee\u6a19\u8868\u3002\u4ee5\u4e0b\u662f\u793a\u4f8b\u4ee3\u78bc\uff1a<\/p>\n<pre><code>UPDATE my_table AS t1\nJOIN (SELECT id FROM my_table WHERE condition) AS t2 ON t1.id = t2.id\nSET t1.column1 = 'new_value';<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u5beb\u6cd5\u53ef\u4ee5\u6709\u6548\u5730\u907f\u514d\u932f\u8aa41093\u7684\u767c\u751f\u3002<\/p>\n<h3 id=\"3-%e5%88%86%e6%ad%a5%e5%9f%b7%e8%a1%8c-jkToAXRSqd\">3. \u5206\u6b65\u57f7\u884c<\/h3>\n<p>\u5982\u679c\u4ee5\u4e0a\u65b9\u6cd5\u4e0d\u9069\u7528\uff0c\u958b\u767c\u8005\u9084\u53ef\u4ee5\u8003\u616e\u5c07\u64cd\u4f5c\u5206\u70ba\u5169\u6b65\u57f7\u884c\u3002\u9996\u5148\uff0c\u9078\u53d6\u9700\u8981\u66f4\u65b0\u7684\u6578\u64da\uff0c\u7136\u5f8c\u518d\u9032\u884c\u66f4\u65b0\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT id INTO @temp_ids FROM my_table WHERE condition;\nUPDATE my_table SET column1 = 'new_value' WHERE id = @temp_ids;<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u65b9\u5f0f\u96d6\u7136\u8f03\u70ba\u7e41\u7463\uff0c\u4f46\u4e5f\u80fd\u6709\u6548\u907f\u514d\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-jkToAXRSqd\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41093\u662f\u7531\u65bc\u5728\u540c\u4e00\u67e5\u8a62\u4e2d\u540c\u6642\u5c0d\u4e00\u500b\u8868\u9032\u884c\u66f4\u65b0\u548c\u9078\u53d6\u64cd\u4f5c\u6240\u5f15\u8d77\u7684\u3002\u901a\u904e\u4f7f\u7528\u81e8\u6642\u8868\u3001JOIN\u8a9e\u53e5\u6216\u5206\u6b65\u57f7\u884c\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u4e86\u89e3\u9019\u4e9b\u89e3\u6c7a\u65b9\u6848\u4e0d\u50c5\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u8655\u7406\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u9084\u80fd\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u6027\u548c\u4e00\u81f4\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\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\u7528\u6236\u7684\u9700\u6c42\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\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41093\uff0c\u89e3\u6c7a\u5728FROM\u5b50\u53e5\u4e2d\u66f4\u65b0\u76ee\u6a19\u8868\u7684\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-177207","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177207","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=177207"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177207\/revisions"}],"predecessor-version":[{"id":177208,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177207\/revisions\/177208"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=177207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=177207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=177207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}