{"id":163275,"date":"2024-11-04T22:08:19","date_gmt":"2024-11-04T14:08:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/163275\/"},"modified":"2024-11-04T22:08:20","modified_gmt":"2024-11-04T14:08:20","slug":"%e8%a7%a3%e6%b1%bamysql%e6%95%b8%e6%93%9a%e5%ba%ab%e5%a0%b1%e9%8c%af1175%e7%9a%84%e6%96%b9%e6%b3%95%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%ab%e5%a0%b1%e9%8c%af1175%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/163275\/","title":{"rendered":"\u89e3\u6c7aMySQL\u6578\u64da\u5eab\u5831\u932f1175\u7684\u65b9\u6cd5\uff08\u6578\u64da\u5eab\u5831\u932f1175\uff09"},"content":{"rendered":"<h1 id=\"%e8%a7%a3%e6%b1%bamysql%e6%95%b8%e6%93%9a%e5%ba%ab%e5%a0%b1%e9%8c%af1175%e7%9a%84%e6%96%b9%e6%b3%95%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%ab%e5%a0%b1%e9%8c%af1175%ef%bc%89-DqOrSISctV\">\u89e3\u6c7aMySQL\u6578\u64da\u5eab\u5831\u932f1175\u7684\u65b9\u6cd5\uff08\u6578\u64da\u5eab\u5831\u932f1175\uff09<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\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\u5c31\u662f\u5831\u932f1175\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u57f7\u884c\u66f4\u65b0\u6216\u522a\u9664\u64cd\u4f5c\u6642\uff0c\u7279\u5225\u662f\u5728\u6c92\u6709\u6307\u5b9a\u4e3b\u9375\u6216\u552f\u4e00\u7d22\u5f15\u7684\u60c5\u6cc1\u4e0b\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5831\u932f1175\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6cd5\uff0c\u5e6b\u52a9\u7528\u6236\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afmysql%e5%a0%b1%e9%8c%af1175%ef%bc%9f-DqOrSISctV\">\u4ec0\u9ebc\u662fMySQL\u5831\u932f1175\uff1f<\/h2>\n<p>MySQL\u5831\u932f1175\u7684\u5177\u9ad4\u4fe1\u606f\u70ba\uff1a\u201cYou are using safe update mode and you tried to update a table without a WHERE that uses a KEY column.\u201d\u9019\u610f\u5473\u8457\u60a8\u6b63\u5728\u4f7f\u7528\u5b89\u5168\u66f4\u65b0\u6a21\u5f0f\uff0c\u4e26\u4e14\u5617\u8a66\u5728\u6c92\u6709\u4f7f\u7528\u4e3b\u9375\u6216\u552f\u4e00\u7d22\u5f15\u7684\u60c5\u6cc1\u4e0b\u66f4\u65b0\u8868\u3002\u9019\u662f\u4e00\u7a2e\u4fdd\u8b77\u6a5f\u5236\uff0c\u65e8\u5728\u9632\u6b62\u7528\u6236\u610f\u5916\u5730\u66f4\u65b0\u6216\u522a\u9664\u5927\u91cf\u6578\u64da\u3002<\/p>\n<h2 id=\"%e5%a0%b1%e9%8c%af1175%e7%9a%84%e5%8e%9f%e5%9b%a0-DqOrSISctV\">\u5831\u932f1175\u7684\u539f\u56e0<\/h2>\n<p>\u5831\u932f1175\u7684\u4e3b\u8981\u539f\u56e0\u662fMySQL\u7684\u5b89\u5168\u66f4\u65b0\u6a21\u5f0f\u3002\u7576\u6b64\u6a21\u5f0f\u555f\u7528\u6642\uff0cMySQL\u6703\u9650\u5236\u67d0\u4e9b\u64cd\u4f5c\uff0c\u4ee5\u9632\u6b62\u7528\u6236\u5728\u6c92\u6709\u9069\u7576\u689d\u4ef6\u7684\u60c5\u6cc1\u4e0b\u9032\u884c\u5927\u898f\u6a21\u7684\u6578\u64da\u66f4\u6539\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u57f7\u884cUPDATE\u6216DELETE\u8a9e\u53e5\u6642\uff0c\u672a\u6307\u5b9aWHERE\u689d\u4ef6\u3002<\/li>\n<li>WHERE\u689d\u4ef6\u4e2d\u672a\u4f7f\u7528\u4e3b\u9375\u6216\u552f\u4e00\u7d22\u5f15\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%a7%a3%e6%b1%ba%e5%a0%b1%e9%8c%af1175-DqOrSISctV\">\u5982\u4f55\u89e3\u6c7a\u5831\u932f1175<\/h2>\n<p>\u89e3\u6c7aMySQL\u5831\u932f1175\u7684\u65b9\u6cd5\u6709\u5e7e\u7a2e\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e7%a6%81%e7%94%a8%e5%ae%89%e5%85%a8%e6%9b%b4%e6%96%b0%e6%a8%a1%e5%bc%8f-DqOrSISctV\">1. \u7981\u7528\u5b89\u5168\u66f4\u65b0\u6a21\u5f0f<\/h3>\n<p>\u5982\u679c\u60a8\u78ba\u5b9a\u8981\u57f7\u884c\u7684\u64cd\u4f5c\u662f\u5b89\u5168\u7684\uff0c\u53ef\u4ee5\u66ab\u6642\u7981\u7528\u5b89\u5168\u66f4\u65b0\u6a21\u5f0f\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>SET SQL_SAFE_UPDATES = 0;<\/code><\/pre>\n<p>\u57f7\u884c\u6b64\u547d\u4ee4\u5f8c\uff0c\u60a8\u53ef\u4ee5\u518d\u6b21\u5617\u8a66\u57f7\u884cUPDATE\u6216DELETE\u64cd\u4f5c\u3002\u5b8c\u6210\u5f8c\uff0c\u5efa\u8b70\u91cd\u65b0\u555f\u7528\u5b89\u5168\u66f4\u65b0\u6a21\u5f0f\uff1a<\/p>\n<pre><code>SET SQL_SAFE_UPDATES = 1;<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8where%e6%a2%9d%e4%bb%b6-DqOrSISctV\">2. \u4f7f\u7528WHERE\u689d\u4ef6<\/h3>\n<p>\u53e6\u4e00\u7a2e\u89e3\u6c7a\u65b9\u6848\u662f\u78ba\u4fdd\u5728\u57f7\u884cUPDATE\u6216DELETE\u64cd\u4f5c\u6642\u4f7f\u7528WHERE\u689d\u4ef6\uff0c\u4e26\u4e14\u8a72\u689d\u4ef6\u61c9\u8a72\u5305\u542b\u4e3b\u9375\u6216\u552f\u4e00\u7d22\u5f15\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>UPDATE your_table SET column_name = 'value' WHERE id = 1;<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u53ea\u66f4\u65b0\u7279\u5b9a\u7684\u884c\uff0c\u5f9e\u800c\u907f\u514d\u5831\u932f1175\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8limit%e5%ad%90%e5%8f%a5-DqOrSISctV\">3. \u4f7f\u7528LIMIT\u5b50\u53e5<\/h3>\n<p>\u5982\u679c\u60a8\u9700\u8981\u66f4\u65b0\u591a\u884c\uff0c\u4f46\u4e0d\u60f3\u7981\u7528\u5b89\u5168\u66f4\u65b0\u6a21\u5f0f\uff0c\u53ef\u4ee5\u4f7f\u7528LIMIT\u5b50\u53e5\u4f86\u9650\u5236\u66f4\u65b0\u7684\u884c\u6578\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>UPDATE your_table SET column_name = 'value' WHERE condition LIMIT 10;<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u5728\u4e0d\u9055\u53cd\u5b89\u5168\u66f4\u65b0\u6a21\u5f0f\u7684\u60c5\u6cc1\u4e0b\uff0c\u9650\u5236\u66f4\u65b0\u7684\u884c\u6578\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-DqOrSISctV\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u5831\u932f1175\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u4e3b\u8981\u7531\u65bc\u5b89\u5168\u66f4\u65b0\u6a21\u5f0f\u7684\u9650\u5236\u3002\u901a\u904e\u7981\u7528\u5b89\u5168\u66f4\u65b0\u6a21\u5f0f\u3001\u4f7f\u7528WHERE\u689d\u4ef6\u6216LIMIT\u5b50\u53e5\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u5728\u7ba1\u7406\u6578\u64da\u5eab\u6642\uff0c\u4fdd\u6301\u8b39\u614e\u548c\u5c0f\u5fc3\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u4ee5\u907f\u514d\u610f\u5916\u6578\u64da\u4e1f\u5931\u6216\u640d\u58de\u3002\u5982\u679c\u60a8\u9700\u8981\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u74b0\u5883\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u652f\u6301\u60a8\u7684\u696d\u52d9\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7aMySQL\u6578\u64da\u5eab\u5831\u932f1175\u7684\u65b9\u6cd5\uff0c\u63d0\u4f9b\u6709\u6548\u7684\u6b65\u9a5f\u548c\u6280\u5de7\uff0c\u5e6b\u52a9\u7528\u6236\u8f15\u9b06\u8655\u7406\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\u7684\u932f\u8aa4\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-163275","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163275","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=163275"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163275\/revisions"}],"predecessor-version":[{"id":163276,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163275\/revisions\/163276"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=163275"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=163275"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=163275"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}