{"id":157042,"date":"2024-11-02T21:17:21","date_gmt":"2024-11-02T13:17:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/157042\/"},"modified":"2024-11-02T21:17:23","modified_gmt":"2024-11-02T13:17:23","slug":"%e5%88%86%e4%ba%ab-mysql-%e4%bf%ae%e6%94%b9%e6%95%b8%e6%93%9a%e7%9a%84%e5%af%a6%e9%9a%9b%e6%93%8d%e4%bd%9c%e6%b5%81%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/157042\/","title":{"rendered":"\u5206\u4eab MySQL \u4fee\u6539\u6578\u64da\u7684\u5be6\u969b\u64cd\u4f5c\u6d41\u7a0b"},"content":{"rendered":"<h1 id=\"%e5%88%86%e4%ba%ab-mysql-%e4%bf%ae%e6%94%b9%e6%95%b8%e6%93%9a%e7%9a%84%e5%af%a6%e9%9a%9b%e6%93%8d%e4%bd%9c%e6%b5%81%e7%a8%8b-eknAqJlJXo\">\u5206\u4eab MySQL \u4fee\u6539\u6578\u64da\u7684\u5be6\u969b\u64cd\u4f5c\u6d41\u7a0b<\/h1>\n<p>MySQL \u662f\u4e00\u7a2e\u6d41\u884c\u7684\u958b\u6e90\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u7db2\u7ad9\u548c\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u4fee\u6539\u6578\u64da\u662f\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\u4e00\u500b\u91cd\u8981\u7684\u64cd\u4f5c\uff0c\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39\u5728 MySQL \u4e2d\u4fee\u6539\u6578\u64da\u7684\u5be6\u969b\u64cd\u4f5c\u6d41\u7a0b\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u61c9\u7528\u9019\u4e00\u904e\u7a0b\u3002<\/p>\n<h2 id=\"1-%e4%ba%86%e8%a7%a3%e5%9f%ba%e6%9c%ac%e7%9a%84-sql-%e8%aa%9e%e6%b3%95-eknAqJlJXo\">1. \u4e86\u89e3\u57fa\u672c\u7684 SQL \u8a9e\u6cd5<\/h2>\n<p>\u5728\u9032\u884c\u6578\u64da\u4fee\u6539\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3 SQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u7684\u57fa\u672c\u8a9e\u6cd5\u3002MySQL \u4e2d\u7528\u65bc\u4fee\u6539\u6578\u64da\u7684\u4e3b\u8981\u8a9e\u53e5\u662f <code>UPDATE<\/code>\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>UPDATE \u8868\u540d\nSET \u52171 = \u503c1, \u52172 = \u503c2, ...\nWHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>\u8868\u540d<\/code> \u662f\u4f60\u8981\u4fee\u6539\u7684\u6578\u64da\u8868\uff0c<code>\u52171<\/code> \u548c <code>\u52172<\/code> \u662f\u4f60\u60f3\u8981\u66f4\u65b0\u7684\u5217\uff0c<code>\u503c1<\/code> \u548c <code>\u503c2<\/code> \u662f\u65b0\u7684\u6578\u64da\u503c\uff0c<code>\u689d\u4ef6<\/code> \u7528\u65bc\u6307\u5b9a\u54ea\u4e9b\u884c\u9700\u8981\u88ab\u66f4\u65b0\u3002<\/p>\n<h2 id=\"2-%e5%af%a6%e9%9a%9b%e6%93%8d%e4%bd%9c%e6%b5%81%e7%a8%8b-eknAqJlJXo\">2. \u5be6\u969b\u64cd\u4f5c\u6d41\u7a0b<\/h2>\n<h3 id=\"%e6%ad%a5%e9%a9%9f%e4%b8%80%ef%bc%9a%e9%80%a3%e6%8e%a5%e5%88%b0-mysql-%e6%95%b8%e6%93%9a%e5%ba%ab-eknAqJlJXo\">\u6b65\u9a5f\u4e00\uff1a\u9023\u63a5\u5230 MySQL \u6578\u64da\u5eab<\/h3>\n<p>\u9996\u5148\uff0c\u4f60\u9700\u8981\u9023\u63a5\u5230 MySQL \u6578\u64da\u5eab\u3002\u53ef\u4ee5\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\u6216\u5716\u5f62\u5316\u754c\u9762\u5de5\u5177\uff08\u5982 phpMyAdmin\uff09\u4f86\u9032\u884c\u9023\u63a5\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u547d\u4ee4\u884c\u9023\u63a5\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>mysql -u \u7528\u6236\u540d -p<\/code><\/pre>\n<p>\u8f38\u5165\u547d\u4ee4\u5f8c\uff0c\u7cfb\u7d71\u6703\u63d0\u793a\u4f60\u8f38\u5165\u5bc6\u78bc\u3002\u6210\u529f\u767b\u9304\u5f8c\uff0c\u4f60\u5c07\u770b\u5230 MySQL \u63d0\u793a\u7b26\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f%e4%ba%8c%ef%bc%9a%e9%81%b8%e6%93%87%e6%95%b8%e6%93%9a%e5%ba%ab-eknAqJlJXo\">\u6b65\u9a5f\u4e8c\uff1a\u9078\u64c7\u6578\u64da\u5eab<\/h3>\n<p>\u5728\u9023\u63a5\u5230 MySQL \u5f8c\uff0c\u9700\u9078\u64c7\u8981\u64cd\u4f5c\u7684\u6578\u64da\u5eab\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u9078\u64c7\u6578\u64da\u5eab\uff1a<\/p>\n<pre><code>USE \u6578\u64da\u5eab\u540d;<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%a9%9f%e4%b8%89%ef%bc%9a%e5%9f%b7%e8%a1%8c-update-%e8%aa%9e%e5%8f%a5-eknAqJlJXo\">\u6b65\u9a5f\u4e09\uff1a\u57f7\u884c UPDATE \u8a9e\u53e5<\/h3>\n<p>\u9078\u64c7\u6578\u64da\u5eab\u5f8c\uff0c\u53ef\u4ee5\u57f7\u884c <code>UPDATE<\/code> \u8a9e\u53e5\u4f86\u4fee\u6539\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>users<\/code> \u7684\u8868\uff0c\u4e26\u5e0c\u671b\u66f4\u65b0\u7528\u6236\u7684\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\uff1a<\/p>\n<pre><code>UPDATE users\nSET email = 'newemail@example.com'\nWHERE id = 1;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u6703\u628a <code>id<\/code> \u70ba 1 \u7684\u7528\u6236\u7684\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\u66f4\u65b0\u70ba <code>newemail@example.com<\/code>\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f%e5%9b%9b%ef%bc%9a%e7%a2%ba%e8%aa%8d%e4%bf%ae%e6%94%b9%e7%b5%90%e6%9e%9c-eknAqJlJXo\">\u6b65\u9a5f\u56db\uff1a\u78ba\u8a8d\u4fee\u6539\u7d50\u679c<\/h3>\n<p>\u57f7\u884c\u5b8c <code>UPDATE<\/code> \u8a9e\u53e5\u5f8c\uff0c\u5efa\u8b70\u4f7f\u7528 <code>SELECT<\/code> \u8a9e\u53e5\u4f86\u78ba\u8a8d\u6578\u64da\u662f\u5426\u5df2\u6b63\u78ba\u4fee\u6539\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE id = 1;<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u67e5\u770b <code>id<\/code> \u70ba 1 \u7684\u7528\u6236\u7684\u6240\u6709\u4fe1\u606f\uff0c\u78ba\u4fdd\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\u5df2\u88ab\u66f4\u65b0\u3002<\/p>\n<h2 id=\"3-%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-eknAqJlJXo\">3. \u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li><strong>\u5099\u4efd\u6578\u64da\uff1a<\/strong>\u5728\u9032\u884c\u4efb\u4f55\u4fee\u6539\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u5099\u4efd\u6578\u64da\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li><strong>\u4f7f\u7528 WHERE \u689d\u4ef6\uff1a<\/strong>\u5728\u57f7\u884c <code>UPDATE<\/code> \u8a9e\u53e5\u6642\uff0c\u52d9\u5fc5\u4f7f\u7528 <code>WHERE<\/code> \u689d\u4ef6\uff0c\u4ee5\u907f\u514d\u4e0d\u5c0f\u5fc3\u66f4\u65b0\u6574\u500b\u8868\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u6e2c\u8a66\u74b0\u5883\uff1a<\/strong>\u5728\u751f\u7522\u74b0\u5883\u4e2d\u9032\u884c\u4fee\u6539\u4e4b\u524d\uff0c\u6700\u597d\u5728\u6e2c\u8a66\u74b0\u5883\u4e2d\u9032\u884c\u64cd\u4f5c\uff0c\u4ee5\u78ba\u4fdd\u4e0d\u6703\u5f71\u97ff\u5230\u5be6\u969b\u904b\u884c\u7684\u7cfb\u7d71\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-eknAqJlJXo\">\u7e3d\u7d50<\/h2>\n<p>\u672c\u6587\u4ecb\u7d39\u4e86 MySQL \u4e2d\u4fee\u6539\u6578\u64da\u7684\u5be6\u969b\u64cd\u4f5c\u6d41\u7a0b\uff0c\u5305\u62ec\u57fa\u672c\u7684 SQL \u8a9e\u6cd5\u3001\u9023\u63a5\u6578\u64da\u5eab\u3001\u57f7\u884c\u66f4\u65b0\u8a9e\u53e5\u4ee5\u53ca\u78ba\u8a8d\u4fee\u6539\u7d50\u679c\u7684\u6b65\u9a5f\u3002\u638c\u63e1\u9019\u4e9b\u57fa\u672c\u64cd\u4f5c\u5f8c\uff0c\u60a8\u5c07\u80fd\u5920\u66f4\u6709\u6548\u5730\u7ba1\u7406\u548c\u7dad\u8b77\u60a8\u7684\u6578\u64da\u5eab\u3002\u5982\u679c\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\u4f86\u63d0\u5347\u60a8\u7684\u7db2\u7ad9\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u4fee\u6539\u6578\u64da\u7684\u5be6\u969b\u64cd\u4f5c\u6d41\u7a0b\uff0c\u638c\u63e1\u57fa\u672c\u6307\u4ee4\u8207\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\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-157042","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/157042","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=157042"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/157042\/revisions"}],"predecessor-version":[{"id":157043,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/157042\/revisions\/157043"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=157042"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=157042"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=157042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}