{"id":200053,"date":"2025-05-06T12:19:29","date_gmt":"2025-05-06T04:19:29","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200053\/"},"modified":"2025-05-06T12:19:29","modified_gmt":"2025-05-06T04:19:29","slug":"%e6%b7%b1%e5%85%a5%e6%8e%8c%e6%8f%a1-mysql-%e5%a4%8d%e5%90%88%e4%b8%bb%e9%94%ae","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200053\/","title":{"rendered":"\u6df1\u5165\u638c\u63e1 MySQL \u590d\u5408\u4e3b\u952e"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u6df1\u5165\u638c\u63e1 MySQL \u590d\u5408\u4e3b\u952e<\/h1>\n<p>\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u6253\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\u5427\uff01\u6587\u4e2d\u5185\u5bb9\u5305\u542b\u7b49\u7b49\u77e5\u8bc6\u70b9&#8230;\u5e0c\u671b\u4f60\u80fd\u5728\u9605\u8bfb\u672c\u6587\u540e\uff0c\u80fd\u771f\u771f\u5b9e\u5b9e\u5b66\u5230\u77e5\u8bc6\u6216\u8005\u5e2e\u4f60\u89e3\u51b3\u5fc3\u4e2d\u7684\u7591\u60d1\uff0c\u4e5f\u6b22\u8fce\u5927\u4f6c\u6216\u8005\u65b0\u4eba\u670b\u53cb\u4eec\u591a\u7559\u8a00\u8bc4\u8bba\uff0c\u591a\u7ed9\u5efa\u8bae\uff01\u8c22\u8c22\uff01<\/p>\n<p>MySQL \u662f\u4e00\u79cd\u6d41\u884c\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u800c\u5728\u6570\u636e\u5e93\u8bbe\u8ba1\u4e2d\uff0c\u4e3b\u952e\u662f\u8868\u4e2d\u7684\u4e00\u5217\u6216\u4e00\u7ec4\u5217\uff0c\u5176\u503c\u552f\u4e00\u5730\u6807\u8bc6\u6bcf\u4e00\u884c\u6570\u636e\u3002\u5728 MySQL \u4e2d\uff0c\u4e3b\u952e\u53ef\u4ee5\u662f\u5355\u5217\u4e3b\u952e\uff0c\u4e5f\u53ef\u4ee5\u662f\u590d\u5408\u4e3b\u952e\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8 MySQL \u590d\u5408\u4e3b\u952e\u7684\u6982\u5ff5\uff0c\u5e76\u901a\u8fc7\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u6765\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u3002<\/p>\n<h3>\u4ec0\u4e48\u662f\u590d\u5408\u4e3b\u952e<\/h3>\n<p>\u590d\u5408\u4e3b\u952e\u662f\u7531\u591a\u4e2a\u5217\u7ec4\u5408\u800c\u6210\u7684\u4e3b\u952e\uff0c\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\u53ef\u4ee5\u66f4\u51c6\u786e\u5730\u552f\u4e00\u6807\u8bc6\u4e00\u884c\u6570\u636e\u3002\u5728\u4e00\u4e2a\u8868\u4e2d\uff0c\u53ef\u80fd\u5b58\u5728\u7740\u591a\u4e2a\u5c5e\u6027\u7684\u7ec4\u5408\u503c\u662f\u552f\u4e00\u7684\u60c5\u51b5\uff0c\u6b64\u65f6\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u590d\u5408\u4e3b\u952e\u6765\u5b9a\u4e49\u8fd9\u79cd\u5173\u7cfb\u3002\u5728 MySQL \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u5728\u521b\u5efa\u8868\u65f6\u6307\u5b9a\u591a\u5217\u4e3a\u4e3b\u952e\u6765\u5b9a\u4e49\u590d\u5408\u4e3b\u952e\u3002<\/p>\n<h3>\u793a\u4f8b\u6570\u636e\u5e93\u8868<\/h3>\n<p>\u4e3a\u4e86\u66f4\u597d\u5730\u6f14\u793a\u590d\u5408\u4e3b\u952e\u7684\u4f7f\u7528\uff0c\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a <code>students<\/code> \u7684\u8868\uff0c\u5305\u542b\u5b66\u751f\u7684\u5b66\u53f7\u3001\u59d3\u540d\u548c\u5e74\u9f84\u7b49\u5b57\u6bb5\u3002\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5047\u8bbe\u5b66\u53f7\u548c\u59d3\u540d\u7684\u7ec4\u5408\u662f\u552f\u4e00\u7684\u6807\u8bc6\u6bcf\u4e2a\u5b66\u751f\uff0c\u56e0\u6b64\u6211\u4eec\u5c06\u5b66\u53f7\u548c\u59d3\u540d\u4f5c\u4e3a\u590d\u5408\u4e3b\u952e\u3002<\/p>\n<pre>CREATE TABLE students (\n    student_id INT,\n    student_name VARCHAR(50),\n    age INT,\n    PRIMARY KEY (student_id, student_name)\n);<\/pre>\n<p>\u4e0a\u9762\u7684\u793a\u4f8b\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7 <code>CREATE TABLE<\/code> \u8bed\u53e5\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3a <code>students<\/code> \u7684\u8868\uff0c\u5176\u4e2d <code>student_id<\/code> \u548c <code>student_name<\/code> \u5217\u7ec4\u5408\u6210\u4e86\u590d\u5408\u4e3b\u952e\u3002<\/p>\n<h3>\u63d2\u5165\u6570\u636e<\/h3>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5411 <code>students<\/code> \u8868\u4e2d\u63d2\u5165\u4e00\u4e9b\u6570\u636e\u4ee5\u6f14\u793a\u590d\u5408\u4e3b\u952e\u7684\u4f7f\u7528\uff1a<\/p>\n<pre>INSERT INTO students (student_id, student_name, age) VALUES\n(1, 'Alice', 20),\n(2, 'Bob', 21),\n(3, 'Alice', 22);<\/pre>\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5411\u8868\u4e2d\u63d2\u5165\u4e86\u4e09\u884c\u6570\u636e\uff0c\u5176\u4e2d\u5305\u62ec\u4e86\u76f8\u540c\u59d3\u540d\u4f46\u4e0d\u540c\u5b66\u53f7\u7684\u60c5\u51b5\uff0c\u8fd9\u65f6\u590d\u5408\u4e3b\u952e\u7684\u4f5c\u7528\u5c31\u4f53\u73b0\u4e86\u51fa\u6765\u3002<\/p>\n<h3>\u67e5\u8be2\u6570\u636e<\/h3>\n<p>\u5f53\u6211\u4eec\u60f3\u8981\u67e5\u8be2\u7279\u5b9a\u5b66\u751f\u4fe1\u606f\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u590d\u5408\u4e3b\u952e\u6765\u7cbe\u786e\u5730\u5b9a\u4f4d\u6570\u636e\u884c\uff1a<\/p>\n<pre>SELECT * FROM students WHERE student_id = 1 AND student_name = 'Alice';<\/pre>\n<p>\u4e0a\u9762\u7684\u67e5\u8be2\u8bed\u53e5\u5c06\u8fd4\u56de\u5b66\u53f7\u4e3a 1\u3001\u59d3\u540d\u4e3a Alice \u7684\u5b66\u751f\u4fe1\u606f\uff0c\u7531\u4e8e\u590d\u5408\u4e3b\u952e\u7684\u5b58\u5728\uff0c\u67e5\u8be2\u64cd\u4f5c\u66f4\u52a0\u7cbe\u786e\u548c\u5feb\u901f\u3002<\/p>\n<h3>\u66f4\u65b0\u6570\u636e<\/h3>\n<p>\u5982\u679c\u9700\u8981\u66f4\u65b0\u67d0\u4e2a\u5b66\u751f\u7684\u4fe1\u606f\uff0c\u540c\u6837\u53ef\u4ee5\u4f7f\u7528\u590d\u5408\u4e3b\u952e\u6765\u5b9a\u4f4d\u5230\u7279\u5b9a\u7684\u6570\u636e\u884c\uff1a<\/p>\n<pre>UPDATE students SET age = 23 WHERE student_id = 1 AND student_name = 'Alice';<\/pre>\n<p>\u4e0a\u9762\u7684\u66f4\u65b0\u8bed\u53e5\u5c06\u4f1a\u5c06\u5b66\u53f7\u4e3a 1\u3001\u59d3\u540d\u4e3a Alice \u7684\u5b66\u751f\u7684\u5e74\u9f84\u66f4\u65b0\u4e3a 23 \u5c81\u3002<\/p>\n<h3>\u5220\u9664\u6570\u636e<\/h3>\n<p>\u4f7f\u7528\u590d\u5408\u4e3b\u952e\u4e5f\u53ef\u4ee5\u5f88\u65b9\u4fbf\u5730\u5220\u9664\u7279\u5b9a\u7684\u6570\u636e\u884c\uff1a<\/p>\n<pre>DELETE FROM students WHERE student_id = 2 AND student_name = 'Bob';<\/pre>\n<p>\u4e0a\u9762\u7684\u5220\u9664\u8bed\u53e5\u5c06\u4f1a\u5220\u9664\u5b66\u53f7\u4e3a 2\u3001\u59d3\u540d\u4e3a Bob \u7684\u5b66\u751f\u4fe1\u606f\u3002<\/p>\n<h3>\u603b\u7ed3<\/h3>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u76f8\u4fe1\u8bfb\u8005\u5bf9\u4e8e MySQL \u590d\u5408\u4e3b\u952e\u6709\u4e86\u66f4\u6df1\u5165\u7684\u7406\u89e3\u3002\u590d\u5408\u4e3b\u952e\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u66f4\u7cbe\u786e\u5730\u6807\u8bc6\u6570\u636e\u884c\uff0c\u5e76\u652f\u6301\u5feb\u901f\u7684\u67e5\u8be2\u3001\u66f4\u65b0\u548c\u5220\u9664\u64cd\u4f5c\u3002\u5728\u5b9e\u9645\u7684\u6570\u636e\u5e93\u8bbe\u8ba1\u4e2d\uff0c\u6839\u636e\u5177\u4f53\u7684\u4e1a\u52a1\u9700\u6c42\u6765\u9009\u62e9\u662f\u5426\u4f7f\u7528\u590d\u5408\u4e3b\u952e\u662f\u975e\u5e38\u91cd\u8981\u7684\u4e00\u70b9\uff0c\u5e0c\u671b\u672c\u6587\u7684\u5185\u5bb9\u5bf9\u4e8e\u8bfb\u8005\u4eec\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<p>\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u6df1\u5165\u638c\u63e1 MySQL \u590d\u5408\u4e3b\u952e\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8emysql,\u7406\u89e3,\u590d\u5408\u4e3b\u952e\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u638c\u63e1 MySQL \u590d\u5408\u4e3b\u952e &#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-200053","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200053","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=200053"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200053\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200053"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200053"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200053"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}