{"id":76014,"date":"2024-10-16T03:08:16","date_gmt":"2024-10-15T19:08:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76014\/"},"modified":"2024-10-16T03:08:16","modified_gmt":"2024-10-15T19:08:16","slug":"mysql-%e5%9f%ba%e6%9c%ac%e4%bd%bf%e7%94%a8%e5%91%bd%e4%bb%a4%e4%b8%ad%e7%9a%845%e5%a4%a7%e5%91%bd%e4%bb%a4","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76014\/","title":{"rendered":"MySQL \u57fa\u672c\u4f7f\u7528\u547d\u4ee4\u4e2d\u76845\u5927\u547d\u4ee4"},"content":{"rendered":"

MySQL \u57fa\u672c\u4f7f\u7528\u547d\u4ee4\u4e2d\u76845\u5927\u547d\u4ee4<\/h1>\n

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\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u7121\u8ad6\u662f\u7db2\u7ad9\u958b\u767c\u9084\u662f\u6578\u64da\u5206\u6790\uff0cMySQL \u90fd\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u5de5\u5177\u3002\u672c\u6587\u5c07\u4ecb\u7d39 MySQL \u7684\u4e94\u500b\u57fa\u672c\u4f7f\u7528\u547d\u4ee4\uff0c\u5e6b\u52a9\u521d\u5b78\u8005\u5feb\u901f\u4e0a\u624b\u3002<\/p>\n

1. SELECT \u547d\u4ee4<\/h2>\n

SELECT \u547d\u4ee4\u662f\u7528\u65bc\u67e5\u8a62\u6578\u64da\u7684\u57fa\u672c\u547d\u4ee4\u3002\u5b83\u53ef\u4ee5\u5f9e\u4e00\u500b\u6216\u591a\u500b\u8868\u4e2d\u6aa2\u7d22\u6578\u64da\uff0c\u4e26\u4e14\u53ef\u4ee5\u4f7f\u7528\u5404\u7a2e\u689d\u4ef6\u4f86\u904e\u6ffe\u7d50\u679c\u3002<\/p>\n

SELECT column1, column2 FROM table_name WHERE condition;<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u82e5\u8981\u5f9e\u540d\u70ba “users” \u7684\u8868\u4e2d\u9078\u64c7\u6240\u6709\u7528\u6236\u7684\u59d3\u540d\u548c\u96fb\u5b50\u90f5\u4ef6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
SELECT name, email FROM users;<\/code><\/pre>\n
2. INSERT \u547d\u4ee4<\/h2>\n
INSERT \u547d\u4ee4\u7528\u65bc\u5411\u8868\u4e2d\u63d2\u5165\u65b0\u6578\u64da\u3002\u9019\u662f\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\u6700\u5e38\u898b\u7684\u547d\u4ee4\u4e4b\u4e00\u3002<\/p>\n
INSERT INTO table_name (column1, column2) VALUES (value1, value2);<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u82e5\u8981\u5411 “users” \u8868\u4e2d\u63d2\u5165\u4e00\u500b\u65b0\u7528\u6236\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
INSERT INTO users (name, email) VALUES ('John Doe', 'john@example.com');<\/code><\/pre>\n
3. UPDATE \u547d\u4ee4<\/h2>\n
UPDATE \u547d\u4ee4\u7528\u65bc\u4fee\u6539\u5df2\u5b58\u5728\u7684\u6578\u64da\u3002\u9019\u500b\u547d\u4ee4\u53ef\u4ee5\u6839\u64da\u7279\u5b9a\u689d\u4ef6\u66f4\u65b0\u4e00\u500b\u6216\u591a\u500b\u8a18\u9304\u3002<\/p>\n
UPDATE table_name SET column1 = value1, column2 = value2 WHERE condition;<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u82e5\u8981\u66f4\u65b0 “users” \u8868\u4e2d\u67d0\u500b\u7528\u6236\u7684\u96fb\u5b50\u90f5\u4ef6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
UPDATE users SET email = 'john.doe@example.com' WHERE name = 'John Doe';<\/code><\/pre>\n
4. DELETE \u547d\u4ee4<\/h2>\n
DELETE \u547d\u4ee4\u7528\u65bc\u522a\u9664\u8868\u4e2d\u7684\u6578\u64da\u3002\u4f7f\u7528\u6b64\u547d\u4ee4\u6642\uff0c\u5fc5\u9808\u5c0f\u5fc3\uff0c\u4ee5\u514d\u610f\u5916\u522a\u9664\u91cd\u8981\u6578\u64da\u3002<\/p>\n
DELETE FROM table_name WHERE condition;<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u82e5\u8981\u522a\u9664 “users” \u8868\u4e2d\u540d\u70ba “John Doe” \u7684\u7528\u6236\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
DELETE FROM users WHERE name = 'John Doe';<\/code><\/pre>\n
5. CREATE TABLE \u547d\u4ee4<\/h2>\n
CREATE TABLE \u547d\u4ee4\u7528\u65bc\u5275\u5efa\u65b0\u8868\u3002\u9019\u662f\u8a2d\u8a08\u6578\u64da\u5eab\u7d50\u69cb\u7684\u7b2c\u4e00\u6b65\u3002<\/p>\n
CREATE TABLE table_name (\n    column1 datatype,\n    column2 datatype,\n    ...\n);<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u82e5\u8981\u5275\u5efa\u4e00\u500b\u540d\u70ba “users” \u7684\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
CREATE TABLE users (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    name VARCHAR(100),\n    email VARCHAR(100)\n);<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u4ee5\u4e0a\u4ecb\u7d39\u7684\u4e94\u500b\u57fa\u672c MySQL \u547d\u4ee4\u662f\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u57fa\u790e\uff0c\u7121\u8ad6\u662f\u67e5\u8a62\u3001\u63d2\u5165\u3001\u66f4\u65b0\u9084\u662f\u522a\u9664\u6578\u64da\uff0c\u9019\u4e9b\u547d\u4ee4\u90fd\u80fd\u5e6b\u52a9\u7528\u6236\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u3002\u638c\u63e1\u9019\u4e9b\u547d\u4ee4\u5f8c\uff0c\u60a8\u5c07\u80fd\u5920\u66f4\u81ea\u4fe1\u5730\u4f7f\u7528 MySQL \u9032\u884c\u6578\u64da\u5eab\u7ba1\u7406\u3002\u5982\u679c\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528\u6211\u5011\u7684 \u9999\u6e2f VPS<\/a> \u670d\u52d9\uff0c\u70ba\u60a8\u7684\u61c9\u7528\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22 MySQL \u7684\u4e94\u5927\u57fa\u672c\u4f7f\u7528\u547d\u4ee4\uff0c\u638c\u63e1\u6570\u636e\u5e93\u7ba1\u7406\u7684\u6838\u5fc3\u6280\u80fd\uff0c\u63d0\u5347\u6570\u636e\u64cd\u4f5c\u6548\u7387\u4e0e\u51c6\u786e\u6027\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-76014","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76014","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=76014"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76014\/revisions"}],"predecessor-version":[{"id":76015,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76014\/revisions\/76015"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76014"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76014"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76014"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}