{"id":200030,"date":"2025-05-06T10:32:07","date_gmt":"2025-05-06T02:32:07","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200030\/"},"modified":"2025-05-06T10:32:07","modified_gmt":"2025-05-06T02:32:07","slug":"%e6%b7%b1%e5%85%a5%e6%8e%a2%e8%ae%a8%e6%95%b0%e6%8d%ae%e5%ba%93%e8%ae%be%e8%ae%a1%e4%b8%ad-mysql-%e5%a4%8d%e5%90%88%e4%b8%bb%e9%94%ae%e7%9a%84%e5%ba%94%e7%94%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200030\/","title":{"rendered":"\u6df1\u5165\u63a2\u8ba8\u6570\u636e\u5e93\u8bbe\u8ba1\u4e2d MySQL \u590d\u5408\u4e3b\u952e\u7684\u5e94\u7528"},"content":{"rendered":"

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

\u6df1\u5165\u63a2\u8ba8\u6570\u636e\u5e93\u8bbe\u8ba1\u4e2d MySQL \u590d\u5408\u4e3b\u952e\u7684\u5e94\u7528<\/h1>\n

\u5728\u6570\u636e\u5e93\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929\u4e3b\u673a\u5b9d\u8d1d\u5c31\u6574\u7406\u5206\u4eab\u300a\u6df1\u5165\u63a2\u8ba8\u6570\u636e\u5e93\u8bbe\u8ba1\u4e2d MySQL \u590d\u5408\u4e3b\u952e\u7684\u5e94\u7528\u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002<\/p>\n

MySQL \u590d\u5408\u4e3b\u952e\u5728\u6570\u636e\u5e93\u8bbe\u8ba1\u4e2d\u7684\u5e94\u7528\u8be6\u89e3<\/p>\n

MySQL \u590d\u5408\u4e3b\u952e\u662f\u6307\u7531\u591a\u4e2a\u5b57\u6bb5\u7ec4\u6210\u7684\u4e3b\u952e\uff0c\u901a\u8fc7\u7ec4\u5408\u8fd9\u4e9b\u5b57\u6bb5\u7684\u503c\u6765\u552f\u4e00\u6807\u8bc6\u4e00\u6761\u8bb0\u5f55\u3002\u5728\u6570\u636e\u5e93\u8bbe\u8ba1\u4e2d\uff0c\u590d\u5408\u4e3b\u952e\u7684\u5e94\u7528\u975e\u5e38\u5e7f\u6cdb\uff0c\u7279\u522b\u662f\u5728\u9700\u8981\u552f\u4e00\u6807\u8bc6\u67d0\u4e2a\u5b9e\u4f53\u7684\u60c5\u51b5\u4e0b\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdMySQL\u590d\u5408\u4e3b\u952e\u7684\u6982\u5ff5\u3001\u8bbe\u8ba1\u539f\u5219\u4ee5\u53ca\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u4e00\u3001MySQL\u590d\u5408\u4e3b\u952e\u7684\u6982\u5ff5<\/p>\n

\u5728MySQL\u4e2d\uff0c\u4e3b\u952e\u662f\u7528\u6765\u552f\u4e00\u6807\u8bc6\u8868\u4e2d\u7684\u6bcf\u4e00\u884c\u6570\u636e\u7684\u5b57\u6bb5\u6216\u5b57\u6bb5\u7ec4\u5408\u3002\u590d\u5408\u4e3b\u952e\u5c31\u662f\u7531\u591a\u4e2a\u5b57\u6bb5\u7ec4\u6210\u7684\u4e3b\u952e\uff0c\u8fd9\u4e9b\u5b57\u6bb5\u7684\u7ec4\u5408\u503c\u5fc5\u987b\u552f\u4e00\u3002\u901a\u8fc7\u5728\u8868\u7684\u5b9a\u4e49\u4e2d\u6307\u5b9a\u8fd9\u4e9b\u5b57\u6bb5\u4f5c\u4e3a\u4e3b\u952e\uff0c\u53ef\u4ee5\u786e\u4fdd\u8868\u4e2d\u7684\u6bcf\u4e00\u884c\u6570\u636e\u90fd\u6709\u552f\u4e00\u7684\u6807\u8bc6\u3002<\/p>\n

\u4e8c\u3001MySQL\u590d\u5408\u4e3b\u952e\u7684\u8bbe\u8ba1\u539f\u5219<\/p>\n

1.\u9009\u62e9\u5408\u9002\u7684\u5b57\u6bb5\u7ec4\u5408\uff1a\u5728\u8bbe\u8ba1\u590d\u5408\u4e3b\u952e\u65f6\uff0c\u9700\u8981\u9009\u62e9\u80fd\u591f\u552f\u4e00\u6807\u8bc6\u4e00\u6761\u8bb0\u5f55\u7684\u5b57\u6bb5\u7ec4\u5408\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u8fd9\u4e9b\u5b57\u6bb5\u5e94\u8be5\u5177\u6709\u552f\u4e00\u6027\uff0c\u4e14\u5177\u6709\u4e00\u5b9a\u7684\u4e1a\u52a1\u610f\u4e49\u3002<\/p>\n

2.\u907f\u514d\u8fc7\u591a\u7684\u5b57\u6bb5\uff1a\u5c3d\u91cf\u907f\u514d\u9009\u62e9\u8fc7\u591a\u7684\u5b57\u6bb5\u7ec4\u6210\u590d\u5408\u4e3b\u952e\uff0c\u56e0\u4e3a\u590d\u5408\u4e3b\u952e\u7684\u5b57\u6bb5\u8d8a\u591a\uff0c\u7d22\u5f15\u7684\u7ef4\u62a4\u548c\u67e5\u8be2\u6027\u80fd\u5c31\u4f1a\u53d8\u5f97\u8d8a\u590d\u6742\u548c\u4f4e\u6548\u3002<\/p>\n

3.\u8003\u8651\u6570\u636e\u7c7b\u578b\u548c\u5b57\u6bb5\u957f\u5ea6\uff1a\u9009\u62e9\u9002\u5f53\u7684\u6570\u636e\u7c7b\u578b\u548c\u5b57\u6bb5\u957f\u5ea6\u53ef\u4ee5\u6709\u6548\u5730\u51cf\u5c11\u7d22\u5f15\u7684\u5b58\u50a8\u7a7a\u95f4\uff0c\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002<\/p>\n

\u4e09\u3001MySQL\u590d\u5408\u4e3b\u952e\u7684\u4ee3\u7801\u793a\u4f8b<\/p>\n

\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u8868\u7684\u521b\u5efa\u8bed\u53e5\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e2a\u7531\u4e24\u4e2a\u5b57\u6bb5\u7ec4\u6210\u7684\u590d\u5408\u4e3b\u952e\uff1a<\/p>\n

CREATE TABLE users (\n    id INT NOT NULL,\n    username VARCHAR(50) NOT NULL,\n    PRIMARY KEY (id, username)\n);<\/pre>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u8868\u540d\u4e3ausers<\/code>\uff0c\u5305\u542b\u4e24\u4e2a\u5b57\u6bb5id<\/code>\u548cusername<\/code>\uff0c\u5e76\u901a\u8fc7PRIMARY KEY<\/code>\u6307\u5b9a\u8fd9\u4e24\u4e2a\u5b57\u6bb5\u7ec4\u6210\u4e86\u590d\u5408\u4e3b\u952e\u3002<\/p>\n
\u63d2\u5165\u6570\u636e\u793a\u4f8b\uff1a<\/p>\n
INSERT INTO users (id, username) VALUES (1, 'Alice');\nINSERT INTO users (id, username) VALUES (2, 'Bob');<\/pre>\n
\u67e5\u8be2\u6570\u636e\u793a\u4f8b\uff1a<\/p>\n
SELECT * FROM users WHERE id = 1 AND username = 'Alice';<\/pre>\n
\u66f4\u65b0\u6570\u636e\u793a\u4f8b\uff1a<\/p>\n
UPDATE users SET username = 'Alex' WHERE id = 1;<\/pre>\n
\u5220\u9664\u6570\u636e\u793a\u4f8b\uff1a<\/p>\n
DELETE FROM users WHERE id = 2 AND username = 'Bob';<\/pre>\n
\u901a\u8fc7\u4ee5\u4e0a\u793a\u4f8b\u53ef\u4ee5\u770b\u5230\uff0c\u5728\u4f7f\u7528\u590d\u5408\u4e3b\u952e\u7684\u60c5\u51b5\u4e0b\uff0c\u9700\u8981\u5728\u67e5\u8be2\u3001\u66f4\u65b0\u3001\u5220\u9664\u64cd\u4f5c\u4e2d\u6307\u5b9a\u6240\u6709\u5b57\u6bb5\u7684\u503c\u6765\u5b9a\u4f4d\u552f\u4e00\u7684\u6570\u636e\u884c\u3002<\/p>\n
\u603b\u7ed3\uff1a<\/p>\n
MySQL\u590d\u5408\u4e3b\u952e\u5728\u6570\u636e\u5e93\u8bbe\u8ba1\u4e2d\u626e\u6f14\u7740\u91cd\u8981\u7684\u89d2\u8272\uff0c\u901a\u8fc7\u5408\u7406\u8bbe\u8ba1\u5e76\u5e94\u7528\u590d\u5408\u4e3b\u952e\uff0c\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u7684\u552f\u4e00\u6027\u548c\u67e5\u8be2\u6027\u80fd\uff0c\u4ece\u800c\u66f4\u597d\u5730\u652f\u6301\u4e1a\u52a1\u9700\u6c42\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6839\u636e\u5177\u4f53\u7684\u4e1a\u52a1\u573a\u666f\u548c\u9700\u6c42\uff0c\u9009\u53d6\u5408\u9002\u7684\u5b57\u6bb5\u7ec4\u5408\u4f5c\u4e3a\u590d\u5408\u4e3b\u952e\uff0c\u624d\u80fd\u53d1\u6325\u5176\u6700\u5927\u7684\u4f5c\u7528\u3002<\/p>\n
\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8e\u6570\u636e\u5e93\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n
\n
\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
\u6df1\u5165\u63a2\u8ba8\u6570\u636e\u5e93\u8bbe\u8ba1\u4e2d MySQL...<\/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-200030","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200030","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=200030"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200030\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200030"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200030"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200030"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}