{"id":76280,"date":"2024-10-16T05:21:14","date_gmt":"2024-10-15T21:21:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76280\/"},"modified":"2024-10-16T05:21:14","modified_gmt":"2024-10-15T21:21:14","slug":"mysql%e5%85%a5%e9%96%80%ef%bc%9a%e4%bd%bf%e7%94%a8update-table-set-column1-value1-where%e6%a2%9d%e4%bb%b6%e4%be%86%e6%9b%b4%e6%96%b0%e8%a1%a8%e4%b8%ad%e7%9a%84%e6%95%b8%e6%93%9a%e3%80%82","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76280\/","title":{"rendered":"MySQL\u5165\u9580\uff1a\u4f7f\u7528UPDATE [table] SET column1 = value1 WHERE\u689d\u4ef6\u4f86\u66f4\u65b0\u8868\u4e2d\u7684\u6578\u64da\u3002"},"content":{"rendered":"<h1 id=\"mysql%e5%85%a5%e9%96%80%ef%bc%9a%e4%bd%bf%e7%94%a8update-table-set-column1-value1-where%e6%a2%9d%e4%bb%b6%e4%be%86%e6%9b%b4%e6%96%b0%e8%a1%a8%e4%b8%ad%e7%9a%84%e6%95%b8%e6%93%9a-tXtxXByQeO\">MySQL\u5165\u9580\uff1a\u4f7f\u7528UPDATE [table] SET column1 = value1 WHERE\u689d\u4ef6\u4f86\u66f4\u65b0\u8868\u4e2d\u7684\u6578\u64da<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cMySQL\u662f\u4e00\u500b\u975e\u5e38\u6d41\u884c\u7684\u9078\u64c7\uff0c\u56e0\u70ba\u5b83\u7684\u958b\u6e90\u7279\u6027\u548c\u5f37\u5927\u7684\u529f\u80fd\u3002\u5c0d\u65bc\u521d\u5b78\u8005\u4f86\u8aaa\uff0c\u4e86\u89e3\u5982\u4f55\u66f4\u65b0\u6578\u64da\u662f\u4f7f\u7528MySQL\u7684\u57fa\u672c\u6280\u80fd\u4e4b\u4e00\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528UPDATE\u8a9e\u53e5\u4f86\u66f4\u65b0\u8868\u4e2d\u7684\u6578\u64da\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u7bc4\u4f8b\u548c\u6ce8\u610f\u4e8b\u9805\u3002<\/p>\n<h2 id=\"update%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-tXtxXByQeO\">UPDATE\u8a9e\u53e5\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<p>UPDATE\u8a9e\u53e5\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>UPDATE [table] SET column1 = value1, column2 = value2, ... WHERE condition;<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff1a<\/p>\n<ul>\n<li><strong>[table]<\/strong>\uff1a\u8981\u66f4\u65b0\u7684\u8868\u540d\u3002<\/li>\n<li><strong>column1, column2<\/strong>\uff1a\u8981\u66f4\u65b0\u7684\u5217\u540d\u3002<\/li>\n<li><strong>value1, value2<\/strong>\uff1a\u8981\u8a2d\u7f6e\u7684\u65b0\u503c\u3002<\/li>\n<li><strong>condition<\/strong>\uff1a\u7528\u65bc\u6307\u5b9a\u54ea\u4e9b\u884c\u9700\u8981\u88ab\u66f4\u65b0\u7684\u689d\u4ef6\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%af%84%e4%be%8b%ef%bc%9a%e6%9b%b4%e6%96%b0%e5%96%ae%e5%80%8b%e5%88%97%e7%9a%84%e6%95%b8%e6%93%9a-tXtxXByQeO\">\u7bc4\u4f8b\uff1a\u66f4\u65b0\u55ae\u500b\u5217\u7684\u6578\u64da<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba<strong>employees<\/strong>\u7684\u8868\uff0c\u8a72\u8868\u5305\u542b\u54e1\u5de5\u7684\u57fa\u672c\u4fe1\u606f\uff0c\u5305\u62ec\u59d3\u540d\u548c\u85aa\u6c34\u3002\u73fe\u5728\u6211\u5011\u60f3\u8981\u66f4\u65b0\u67d0\u4f4d\u54e1\u5de5\u7684\u85aa\u6c34\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n<pre><code>UPDATE employees SET salary = 60000 WHERE name = 'John Doe';<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u628a\u540d\u70ba\u201cJohn Doe\u201d\u7684\u54e1\u5de5\u7684\u85aa\u6c34\u66f4\u65b0\u70ba60000\u3002<\/p>\n<h2 id=\"%e7%af%84%e4%be%8b%ef%bc%9a%e6%9b%b4%e6%96%b0%e5%a4%9a%e5%80%8b%e5%88%97%e7%9a%84%e6%95%b8%e6%93%9a-tXtxXByQeO\">\u7bc4\u4f8b\uff1a\u66f4\u65b0\u591a\u500b\u5217\u7684\u6578\u64da<\/h2>\n<p>\u5982\u679c\u6211\u5011\u60f3\u8981\u540c\u6642\u66f4\u65b0\u591a\u500b\u5217\uff0c\u4f8b\u5982\u66f4\u65b0\u54e1\u5de5\u7684\u85aa\u6c34\u548c\u8077\u4f4d\uff0c\u53ef\u4ee5\u9019\u6a23\u505a\uff1a<\/p>\n<pre><code>UPDATE employees SET salary = 65000, position = 'Senior Developer' WHERE name = 'Jane Smith';<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u628a\u540d\u70ba\u201cJane Smith\u201d\u7684\u54e1\u5de5\u7684\u85aa\u6c34\u66f4\u65b0\u70ba65000\uff0c\u4e26\u5c07\u8077\u4f4d\u66f4\u65b0\u70ba\u201cSenior Developer\u201d\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8where%e6%a2%9d%e4%bb%b6%e7%9a%84%e9%87%8d%e8%a6%81%e6%80%a7-tXtxXByQeO\">\u4f7f\u7528WHERE\u689d\u4ef6\u7684\u91cd\u8981\u6027<\/h2>\n<p>\u5728\u4f7f\u7528UPDATE\u8a9e\u53e5\u6642\uff0c<strong>WHERE<\/strong>\u689d\u4ef6\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u5982\u679c\u7701\u7565\u4e86WHERE\u689d\u4ef6\uff0c\u5247\u6240\u6709\u884c\u90fd\u6703\u88ab\u66f4\u65b0\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>UPDATE employees SET salary = 50000;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u628a<strong>employees<\/strong>\u8868\u4e2d\u6240\u6709\u54e1\u5de5\u7684\u85aa\u6c34\u90fd\u66f4\u65b0\u70ba50000\uff0c\u9019\u901a\u5e38\u4e0d\u662f\u6211\u5011\u60f3\u8981\u7684\u7d50\u679c\u3002\u56e0\u6b64\uff0c\u5728\u57f7\u884cUPDATE\u64cd\u4f5c\u4e4b\u524d\uff0c\u52d9\u5fc5\u78ba\u8a8dWHERE\u689d\u4ef6\u7684\u6b63\u78ba\u6027\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8limit%e9%99%90%e5%88%b6%e6%9b%b4%e6%96%b0%e7%9a%84%e8%a1%8c%e6%95%b8-tXtxXByQeO\">\u4f7f\u7528LIMIT\u9650\u5236\u66f4\u65b0\u7684\u884c\u6578<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6211\u5011\u53ef\u80fd\u53ea\u60f3\u66f4\u65b0\u7279\u5b9a\u6578\u91cf\u7684\u884c\u3002MySQL\u5141\u8a31\u4f7f\u7528<strong>LIMIT<\/strong>\u4f86\u9650\u5236\u66f4\u65b0\u7684\u884c\u6578\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>UPDATE employees SET salary = 55000 WHERE position = 'Junior Developer' LIMIT 5;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u628a\u524d\u4e94\u4f4d\u8077\u4f4d\u70ba\u201cJunior Developer\u201d\u7684\u54e1\u5de5\u7684\u85aa\u6c34\u66f4\u65b0\u70ba55000\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-tXtxXByQeO\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u4ecb\u7d39\u4e86\u5982\u4f55\u4f7f\u7528MySQL\u7684UPDATE\u8a9e\u53e5\u4f86\u66f4\u65b0\u8868\u4e2d\u7684\u6578\u64da\uff0c\u5305\u62ec\u57fa\u672c\u8a9e\u6cd5\u3001\u7bc4\u4f8b\u4ee5\u53ca\u4f7f\u7528WHERE\u689d\u4ef6\u7684\u91cd\u8981\u6027\u3002\u638c\u63e1\u9019\u4e9b\u57fa\u672c\u64cd\u4f5c\u5f8c\uff0c\u60a8\u5c07\u80fd\u5920\u66f4\u6709\u6548\u5730\u7ba1\u7406\u548c\u66f4\u65b0\u6578\u64da\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684MySQL\u6578\u64da\u5eab\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f\u500b\u4eba\u9805\u76ee\u9084\u662f\u5546\u696d\u61c9\u7528\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\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\u4f7f\u7528MySQL\u7684UPDATE\u8a9e\u53e5\u66f4\u65b0\u8868\u4e2d\u6578\u64da\uff0c\u638c\u63e1SET\u548cWHERE\u689d\u4ef6\u7684\u61c9\u7528\u6280\u5de7\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-76280","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76280","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=76280"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76280\/revisions"}],"predecessor-version":[{"id":76281,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76280\/revisions\/76281"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76280"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76280"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76280"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}