{"id":75138,"date":"2024-10-15T23:19:16","date_gmt":"2024-10-15T15:19:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/75138\/"},"modified":"2024-10-15T23:19:17","modified_gmt":"2024-10-15T15:19:17","slug":"mysql-%e5%b8%b8%e7%94%a8%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%94%a8%e6%b3%95%e7%9a%84%e4%bb%8b%e7%b4%b9","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/75138\/","title":{"rendered":"MySQL \u5e38\u7528\u8a9e\u53e5\u7684\u57fa\u672c\u7528\u6cd5\u7684\u4ecb\u7d39"},"content":{"rendered":"

MySQL \u5e38\u7528\u8a9e\u53e5\u7684\u57fa\u672c\u7528\u6cd5\u7684\u4ecb\u7d39<\/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\u7db2\u7ad9\u548c\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u9805\u76ee\u9084\u662f\u5927\u578b\u4f01\u696d\uff0cMySQL \u90fd\u80fd\u63d0\u4f9b\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u4e00\u4e9b MySQL \u7684\u5e38\u7528\u8a9e\u53e5\u53ca\u5176\u57fa\u672c\u7528\u6cd5\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u4f7f\u7528\u9019\u4e00\u5f37\u5927\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u3002<\/p>\n

1. \u57fa\u672c\u7684\u6578\u64da\u5eab\u64cd\u4f5c<\/h2>\n

1.1 \u5275\u5efa\u6578\u64da\u5eab<\/h3>\n

\u8981\u5275\u5efa\u4e00\u500b\u65b0\u7684\u6578\u64da\u5eab\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n

CREATE DATABASE database_name;<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u5275\u5efa\u4e00\u500b\u540d\u70ba “test_db” \u7684\u6578\u64da\u5eab\uff1a<\/p>\n
CREATE DATABASE test_db;<\/code><\/pre>\n
1.2 \u522a\u9664\u6578\u64da\u5eab<\/h3>\n
\u5982\u679c\u9700\u8981\u522a\u9664\u4e00\u500b\u6578\u64da\u5eab\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n
DROP DATABASE database_name;<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u522a\u9664 “test_db” \u6578\u64da\u5eab\uff1a<\/p>\n
DROP DATABASE test_db;<\/code><\/pre>\n
2. \u8868\u7684\u64cd\u4f5c<\/h2>\n
2.1 \u5275\u5efa\u8868<\/h3>\n
\u5275\u5efa\u8868\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n
CREATE TABLE table_name (\n    column1 datatype,\n    column2 datatype,\n    ...\n);<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u5275\u5efa\u4e00\u500b\u540d\u70ba “users” \u7684\u8868\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
2.2 \u522a\u9664\u8868<\/h3>\n
\u522a\u9664\u8868\u7684\u8a9e\u6cd5\u70ba\uff1a<\/p>\n
DROP TABLE table_name;<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u522a\u9664 “users” \u8868\uff1a<\/p>\n
DROP TABLE users;<\/code><\/pre>\n
3. \u6578\u64da\u7684\u64cd\u4f5c<\/h2>\n
3.1 \u63d2\u5165\u6578\u64da<\/h3>\n
\u8981\u5411\u8868\u4e2d\u63d2\u5165\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n
INSERT INTO table_name (column1, column2, ...)\nVALUES (value1, value2, ...);<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u5411 “users” \u8868\u4e2d\u63d2\u5165\u4e00\u689d\u6578\u64da\uff1a<\/p>\n
INSERT INTO users (name, email)\nVALUES ('John Doe', 'john@example.com');<\/code><\/pre>\n
3.2 \u67e5\u8a62\u6578\u64da<\/h3>\n
\u67e5\u8a62\u6578\u64da\u7684\u57fa\u672c\u8a9e\u6cd5\u70ba\uff1a<\/p>\n
SELECT column1, column2, ...\nFROM table_name\nWHERE condition;<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u67e5\u8a62 “users” \u8868\u4e2d\u7684\u6240\u6709\u6578\u64da\uff1a<\/p>\n
SELECT * FROM users;<\/code><\/pre>\n
3.3 \u66f4\u65b0\u6578\u64da<\/h3>\n
\u66f4\u65b0\u6578\u64da\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n
UPDATE table_name\nSET column1 = value1, column2 = value2, ...\nWHERE condition;<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u66f4\u65b0 “users” \u8868\u4e2d\u67d0\u500b\u7528\u6236\u7684\u96fb\u5b50\u90f5\u4ef6\uff1a<\/p>\n
UPDATE users\nSET email = 'john.doe@example.com'\nWHERE name = 'John Doe';<\/code><\/pre>\n
3.4 \u522a\u9664\u6578\u64da<\/h3>\n
\u522a\u9664\u6578\u64da\u7684\u8a9e\u6cd5\u70ba\uff1a<\/p>\n
DELETE FROM table_name\nWHERE condition;<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u522a\u9664 “users” \u8868\u4e2d\u540d\u70ba “John Doe” \u7684\u7528\u6236\uff1a<\/p>\n
DELETE FROM users\nWHERE name = 'John Doe';<\/code><\/pre>\n
4. \u6578\u64da\u5eab\u7684\u7ba1\u7406<\/h2>\n
4.1 \u67e5\u770b\u6578\u64da\u5eab\u5217\u8868<\/h3>\n
\u8981\u67e5\u770b\u7576\u524d\u7684\u6578\u64da\u5eab\u5217\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n
SHOW DATABASES;<\/code><\/pre>\n
4.2 \u67e5\u770b\u8868\u5217\u8868<\/h3>\n
\u67e5\u770b\u7576\u524d\u6578\u64da\u5eab\u4e2d\u7684\u8868\u5217\u8868\uff1a<\/p>\n
SHOW TABLES;<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u672c\u6587\u4ecb\u7d39\u4e86 MySQL \u7684\u4e00\u4e9b\u57fa\u672c\u8a9e\u53e5\u53ca\u5176\u7528\u6cd5\uff0c\u5305\u62ec\u6578\u64da\u5eab\u548c\u8868\u7684\u5275\u5efa\u3001\u522a\u9664\uff0c\u6578\u64da\u7684\u63d2\u5165\u3001\u67e5\u8a62\u3001\u66f4\u65b0\u548c\u522a\u9664\u7b49\u64cd\u4f5c\u3002\u638c\u63e1\u9019\u4e9b\u57fa\u672c\u8a9e\u53e5\u5c07\u6709\u52a9\u65bc\u7528\u6236\u66f4\u6709\u6548\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\u5eab\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 VPS<\/a> \u6216 \u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u5e0c\u671b\u9019\u7bc7\u6587\u7ae0\u80fd\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3 MySQL \u7684\u57fa\u672c\u7528\u6cd5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3MySQL\u5e38\u7528\u8a9e\u53e5\u7684\u57fa\u672c\u7528\u6cd5\uff0c\u638c\u63e1\u6578\u64da\u5eab\u64cd\u4f5c\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u9069\u5408\u521d\u5b78\u8005\u548c\u9032\u968e\u7528\u6236\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-75138","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75138","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=75138"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75138\/revisions"}],"predecessor-version":[{"id":75139,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75138\/revisions\/75139"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=75138"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=75138"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=75138"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}