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\u5c0d\u65bc\u521d\u5b78\u8005\u4f86\u8aaa\uff0c\u638c\u63e1MySQL\u7684\u57fa\u672c\u64cd\u4f5c\u662f\u5b78\u7fd2\u6578\u64da\u5eab\u7ba1\u7406\u7684\u7b2c\u4e00\u6b65\u3002\u672c\u6587\u5c07\u4ecb\u7d39MySQL\u4e2d\u8868\u7684\u57fa\u672c\u64cd\u4f5c\uff0c\u5305\u62ec\u5275\u5efa\u3001\u67e5\u8a62\u3001\u66f4\u65b0\u548c\u522a\u9664\u8868\u4e2d\u7684\u6578\u64da\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u793a\u4f8b\u4ee3\u78bc\u3002<\/p>\n
\u5728MySQL\u4e2d\uff0c\u5275\u5efa\u6578\u64da\u8868\u662f\u4f7f\u7528SQL\u8a9e\u53e5\u7684\u7b2c\u4e00\u6b65\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u5275\u5efa\u7528\u6236\u4fe1\u606f\u8868\u7684\u793a\u4f8b\uff1a<\/p>\n
CREATE TABLE users (\n id INT AUTO_INCREMENT PRIMARY KEY,\n username VARCHAR(50) NOT NULL,\n email VARCHAR(100) NOT NULL,\n created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP\n);<\/code><\/pre>\n\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba\u201cusers\u201d\u7684\u8868\uff0c\u5305\u542b\u56db\u500b\u5b57\u6bb5\uff1aid\u3001username\u3001email\u548ccreated_at\u3002\u5176\u4e2d\uff0cid\u5b57\u6bb5\u8a2d\u7f6e\u70ba\u81ea\u52d5\u589e\u91cf\u4e3b\u9375\uff0c\u9019\u610f\u5473\u8457\u6bcf\u6b21\u63d2\u5165\u65b0\u8a18\u9304\u6642\uff0cid\u6703\u81ea\u52d5\u589e\u52a0\u3002<\/p>\n
2. \u63d2\u5165\u6578\u64da<\/h2>\n
\u5275\u5efa\u8868\u5f8c\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528INSERT\u8a9e\u53e5\u5411\u8868\u4e2d\u63d2\u5165\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u63d2\u5165\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n
INSERT INTO users (username, email) VALUES ('Alice', 'alice@example.com');\nINSERT INTO users (username, email) VALUES ('Bob', 'bob@example.com');<\/code><\/pre>\n\u9019\u6bb5\u4ee3\u78bc\u5c07\u5169\u689d\u8a18\u9304\u63d2\u5165\u5230users\u8868\u4e2d\uff0c\u5206\u5225\u662f\u7528\u6236Alice\u548cBob\u7684\u76f8\u95dc\u4fe1\u606f\u3002<\/p>\n
3. \u67e5\u8a62\u6578\u64da<\/h2>\n
\u67e5\u8a62\u6578\u64da\u662f\u4f7f\u7528MySQL\u7684\u4e3b\u8981\u529f\u80fd\u4e4b\u4e00\u3002\u4f7f\u7528SELECT\u8a9e\u53e5\u53ef\u4ee5\u5f9e\u8868\u4e2d\u6aa2\u7d22\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u67e5\u8a62\u6240\u6709\u7528\u6236\u7684\u793a\u4f8b\uff1a<\/p>\n
SELECT * FROM users;<\/code><\/pre>\n\u9019\u689d\u8a9e\u53e5\u5c07\u8fd4\u56deusers\u8868\u4e2d\u7684\u6240\u6709\u8a18\u9304\u3002\u5982\u679c\u53ea\u60f3\u67e5\u8a62\u7279\u5b9a\u5b57\u6bb5\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n
SELECT username, email FROM users;<\/code><\/pre>\n4. \u66f4\u65b0\u6578\u64da<\/h2>\n
\u5982\u679c\u9700\u8981\u4fee\u6539\u8868\u4e2d\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528UPDATE\u8a9e\u53e5\u3002\u4ee5\u4e0b\u662f\u66f4\u65b0\u7528\u6236\u96fb\u5b50\u90f5\u4ef6\u7684\u793a\u4f8b\uff1a<\/p>\n
UPDATE users SET email = 'alice_new@example.com' WHERE username = 'Alice';<\/code><\/pre>\n\u9019\u689d\u8a9e\u53e5\u5c07\u7528\u6236Alice\u7684\u96fb\u5b50\u90f5\u4ef6\u66f4\u65b0\u70ba\u65b0\u7684\u5730\u5740\u3002<\/p>\n
5. \u522a\u9664\u6578\u64da<\/h2>\n
\u522a\u9664\u6578\u64da\u53ef\u4ee5\u4f7f\u7528DELETE\u8a9e\u53e5\u3002\u4ee5\u4e0b\u662f\u522a\u9664\u7528\u6236Bob\u7684\u793a\u4f8b\uff1a<\/p>\n
DELETE FROM users WHERE username = 'Bob';<\/code><\/pre>\n\u9019\u689d\u8a9e\u53e5\u5c07\u5f9eusers\u8868\u4e2d\u522a\u9664\u7528\u6236Bob\u7684\u8a18\u9304\u3002<\/p>\n
6. \u5c0f\u7d50<\/h2>\n
\u672c\u6587\u4ecb\u7d39\u4e86MySQL\u4e2d\u8868\u7684\u57fa\u672c\u64cd\u4f5c\uff0c\u5305\u62ec\u5275\u5efa\u3001\u63d2\u5165\u3001\u67e5\u8a62\u3001\u66f4\u65b0\u548c\u522a\u9664\u6578\u64da\u3002\u9019\u4e9b\u64cd\u4f5c\u662f\u5b78\u7fd2\u548c\u4f7f\u7528MySQL\u7684\u57fa\u790e\uff0c\u638c\u63e1\u9019\u4e9b\u6280\u80fd\u5c07\u6709\u52a9\u65bc\u521d\u5b78\u8005\u5728\u6578\u64da\u5eab\u7ba1\u7406\u65b9\u9762\u7684\u9032\u4e00\u6b65\u5b78\u7fd2\u3002<\/p>\n
\u5982\u679c\u60a8\u5c0d\u65bcVPS\u4e3b\u6a5f\u6216\u5176\u4ed6\u76f8\u95dc\u670d\u52d9\u611f\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\u3002\u7121\u8ad6\u662f\u5c0b\u627e\u9999\u6e2fVPS<\/a>\u9084\u662f\u5176\u4ed6\u985e\u578b\u7684\u4f3a\u670d\u5668<\/a>\u89e3\u6c7a\u65b9\u6848\uff0c\u6211\u5011\u90fd\u80fd\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u9069\u5408\u521d\u5b78\u8005\u7684MySQL\u5b78\u7fd2\u7b46\u8a18\uff0c\u63d0\u4f9b\u6e05\u6670\u7684\u8868\u64cd\u4f5c\u793a\u4f8b\uff0c\u5e6b\u52a9\u5feb\u901f\u638c\u63e1\u6578\u64da\u5eab\u7ba1\u7406\u57fa\u790e\u77e5\u8b58\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-185604","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185604","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=185604"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185604\/revisions"}],"predecessor-version":[{"id":185605,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185604\/revisions\/185605"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=185604"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=185604"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=185604"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}