{"id":200061,"date":"2025-05-06T11:06:51","date_gmt":"2025-05-06T03:06:51","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200061\/"},"modified":"2025-05-06T11:06:51","modified_gmt":"2025-05-06T03:06:51","slug":"%e8%ae%be%e8%ae%a1-mysql-%e5%a4%8d%e5%90%88%e4%b8%bb%e9%94%ae%e7%9a%84%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200061\/","title":{"rendered":"\u8bbe\u8ba1 MySQL \u590d\u5408\u4e3b\u952e\u7684\u6700\u4f73\u5b9e\u8df5"},"content":{"rendered":"

<\/b> <\/p>\n

\u8bbe\u8ba1 MySQL \u590d\u5408\u4e3b\u952e\u7684\u6700\u4f73\u5b9e\u8df5<\/h1>\n

\u590d\u5408\u4e3b\u952e\u662f MySQL \u4e2d\u4e00\u79cd\u7531\u591a\u4e2a\u5b57\u6bb5\u7ec4\u6210\u7684\u952e\uff0c\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u6570\u636e\u884c\u3002\u5408\u7406\u8bbe\u8ba1\u590d\u5408\u4e3b\u952e\u81f3\u5173\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u786e\u4fdd\u6570\u636e\u552f\u4e00\u6027\uff0c\u63d0\u9ad8\u68c0\u7d22\u6548\u7387\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u8bbe\u8ba1 MySQL \u590d\u5408\u4e3b\u952e\u7684\u6700\u4f73\u5b9e\u8df5\uff0c\u5305\u62ec\u9009\u62e9\u5408\u9002\u7684\u5b57\u6bb5\u3001\u521b\u5efa\u8868\u548c\u5b9a\u4e49\u4e3b\u952e\u3001\u63d2\u5165\u6570\u636e\u5e76\u8fdb\u884c\u67e5\u8be2\u7b49\u6b65\u9aa4\uff0c\u5e2e\u52a9\u60a8\u5145\u5206\u5229\u7528\u590d\u5408\u4e3b\u952e\u7684\u4f18\u52bf\uff0c\u4f18\u5316\u6570\u636e\u5e93\u6027\u80fd\u3002<\/p>\n

\u5982\u4f55\u8bbe\u8ba1\u5408\u7406\u7684 MySQL \u590d\u5408\u4e3b\u952e\uff1f<\/p>\n

\u5728\u6570\u636e\u5e93\u8bbe\u8ba1\u4e2d\uff0c\u4e3b\u952e\u662f\u4e00\u9879\u975e\u5e38\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u552f\u4e00\u5730\u6807\u8bc6\u6bcf\u4e00\u884c\u6570\u636e\u3002\u5728 MySQL \u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u9009\u62e9\u4f7f\u7528\u5355\u4e00\u4e3b\u952e\u6216\u8005\u590d\u5408\u4e3b\u952e\u3002\u590d\u5408\u4e3b\u952e\u662f\u7531\u591a\u4e2a\u5b57\u6bb5\u7ec4\u5408\u800c\u6210\u7684\u952e\uff0c\u80fd\u591f\u66f4\u52a0\u51c6\u786e\u5730\u5b9a\u4f4d\u6570\u636e\uff0c\u63d0\u9ad8\u6570\u636e\u68c0\u7d22\u7684\u6548\u7387\u3002\u672c\u6587\u5c06\u5411\u5927\u5bb6\u4ecb\u7ecd\u5982\u4f55\u8bbe\u8ba1\u5408\u7406\u7684 MySQL \u590d\u5408\u4e3b\u952e\uff0c\u5e76\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

1. \u9009\u62e9\u5408\u9002\u7684\u5b57\u6bb5\u4f5c\u4e3a\u4e3b\u952e<\/h3>\n

\u5728\u8bbe\u8ba1\u590d\u5408\u4e3b\u952e\u65f6\uff0c\u9996\u5148\u9700\u8981\u9009\u62e9\u5408\u9002\u7684\u5b57\u6bb5\u7ec4\u5408\u4f5c\u4e3a\u4e3b\u952e\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u4e3b\u952e\u5e94\u8be5\u80fd\u591f\u786e\u4fdd\u6570\u636e\u7684\u552f\u4e00\u6027\uff0c\u540c\u65f6\u8981\u80fd\u591f\u5c3d\u53ef\u80fd\u7f29\u5c0f\u4e3b\u952e\u5b57\u6bb5\u7684\u957f\u5ea6\uff0c\u4ee5\u63d0\u9ad8\u68c0\u7d22\u6548\u7387\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u9009\u62e9\u5177\u6709\u552f\u4e00\u6027\u7ea6\u675f\u7684\u5b57\u6bb5\u4f5c\u4e3a\u4e3b\u952e\uff0c\u6bd4\u5982\u5e38\u89c1\u7684\u8ba2\u5355\u53f7\u3001\u7528\u6237ID\u7b49\u3002<\/p>\n

2. \u521b\u5efa\u8868\u5e76\u5b9a\u4e49\u590d\u5408\u4e3b\u952e<\/h3>\n

\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u6765\u770b\u4e00\u4e2a\u793a\u4f8b\uff0c\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u5b66\u751f\u8868\uff08student\uff09\uff0c\u5305\u542b\u4e86\u5b66\u751f\u7684\u5b66\u53f7\uff08student_id\uff09\u3001\u59d3\u540d\uff08name\uff09\u548c\u73ed\u7ea7\uff08class\uff09\u7b49\u5b57\u6bb5\u3002\u6211\u4eec\u5e0c\u671b\u4ee5\u5b66\u53f7\u548c\u73ed\u7ea7\u4f5c\u4e3a\u590d\u5408\u4e3b\u952e\u3002<\/p>\n

\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u8868\u5e76\u5b9a\u4e49\u590d\u5408\u4e3b\u952e\uff0c\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n

CREATE TABLE student (\n    student_id INT,\n    name VARCHAR(50),\n    class VARCHAR(20),\n    PRIMARY KEY (student_id, class)\n);<\/pre>\n
\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u901a\u8fc7 PRIMARY KEY (student_id, class)<\/code> \u5b9a\u4e49\u4e86\u5b66\u53f7\u548c\u73ed\u7ea7\u7ec4\u5408\u6210\u7684\u590d\u5408\u4e3b\u952e\u3002\u8fd9\u6837\u5c31\u786e\u4fdd\u4e86\u6bcf\u4e2a\u5b66\u751f\u7684\u5b66\u53f7\u548c\u73ed\u7ea7\u7684\u7ec4\u5408\u662f\u552f\u4e00\u7684\u3002<\/p>\n
3. \u63d2\u5165\u6570\u636e\u5e76\u8fdb\u884c\u67e5\u8be2<\/h3>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5411\u8868\u4e2d\u63d2\u5165\u4e00\u4e9b\u6570\u636e\uff0c\u5e76\u8fdb\u884c\u67e5\u8be2\u64cd\u4f5c\uff0c\u770b\u770b\u590d\u5408\u4e3b\u952e\u7684\u6548\u679c\u3002<\/p>\n
INSERT INTO student (student_id, name, class) VALUES (1, '\u5f20\u4e09', 'A');\nINSERT INTO student (student_id, name, class) VALUES (2, '\u674e\u56db', 'B');\n\nSELECT * FROM student WHERE student_id = 1 AND class = 'A';<\/pre>\n
\u901a\u8fc7\u4ee5\u4e0a\u4f8b\u5b50\uff0c\u6211\u4eec\u6210\u529f\u5730\u521b\u5efa\u4e86\u4e00\u4e2a\u62e5\u6709\u590d\u5408\u4e3b\u952e\u7684\u8868\uff0c\u5e76\u8fdb\u884c\u4e86\u63d2\u5165\u548c\u67e5\u8be2\u64cd\u4f5c\u3002\u590d\u5408\u4e3b\u952e\u53ef\u4ee5\u6709\u6548\u5730\u4fdd\u8bc1\u6570\u636e\u7684\u552f\u4e00\u6027\uff0c\u63d0\u9ad8\u68c0\u7d22\u6548\u7387\u3002<\/p>\n
\u7ed3\u8bba<\/h3>\n
\u8bbe\u8ba1\u5408\u7406\u7684 MySQL \u590d\u5408\u4e3b\u952e\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u66f4\u597d\u5730\u7ba1\u7406\u6570\u636e\u53ca\u63d0\u9ad8\u68c0\u7d22\u6548\u7387\u3002\u5728\u9009\u62e9\u4e3b\u952e\u5b57\u6bb5\u65f6\u9700\u8981\u6ce8\u610f\u5b57\u6bb5\u7684\u552f\u4e00\u6027\u548c\u957f\u5ea6\uff0c\u7ed3\u5408\u5177\u4f53\u4e1a\u52a1\u9700\u6c42\u8fdb\u884c\u8bbe\u8ba1\u3002\u901a\u8fc7\u5408\u7406\u7684\u8bbe\u8ba1\u590d\u5408\u4e3b\u952e\uff0c\u53ef\u4ee5\u4f7f\u6570\u636e\u8868\u7684\u7ed3\u6784\u66f4\u52a0\u6e05\u6670\u660e\u4e86\uff0c\u63d0\u9ad8\u6570\u636e\u5e93\u7684\u6027\u80fd\u3002<\/p>\n
\u5e0c\u671b\u4ee5\u4e0a\u5c0f\u8282\u5bf9\u60a8\u6709\u6240\u5e2e\u52a9\uff0c\u611f\u8c22\u9605\u8bfb\uff01<\/p>\n
\u4eca\u5929\u5173\u4e8e\u300a\u8bbe\u8ba1 MySQL \u590d\u5408\u4e3b\u952e\u7684\u6700\u4f73\u5b9e\u8df5\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n
\n
\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
\u8bbe\u8ba1 MySQL \u590d\u5408\u4e3b\u952e\u7684\u6700\u4f73...<\/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-200061","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200061","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=200061"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200061\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200061"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200061"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200061"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}