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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/chaterm/terminal-skills --skill mysql- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads mysql automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
MySQL 数据库管理
概述
MySQL/MariaDB 数据库的日常管理、备份恢复、性能调优等运维技能。
连接管理
# 本地连接
mysql -u root -p
# 远程连接
mysql -h hostname -P 3306 -u user -p database
# 执行 SQL 文件
mysql -u user -p database < script.sql
# 执行单条命令
mysql -u user -p -e "SHOW DATABASES;"
用户与权限
-- 查看用户
SELECT user, host FROM mysql.user;
-- 创建用户
CREATE USER 'username'@'%' IDENTIFIED BY 'password';
-- 授权
GRANT ALL PRIVILEGES ON database.* TO 'username'@'%';
GRANT SELECT, INSERT ON database.table TO 'username'@'%';
-- 刷新权限
FLUSH PRIVILEGES;
-- 查看权限
SHOW GRANTS FOR 'username'@'%';
数据库操作
-- 数据库管理
SHOW DATABASES;
CREATE DATABASE dbname CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
DROP DATABASE dbname;
USE dbname;
-- 表管理
SHOW TABLES;
DESCRIBE tablename;
SHOW CREATE TABLE tablename;
备份与恢复
mysqldump 备份
# 备份单个数据库
mysqldump -u root -p database > backup.sql
# 备份所有数据库
mysqldump -u root -p --all-databases > all_backup.sql
# 备份表结构
mysqldump -u root -p --no-data database > schema.sql
# 压缩备份
mysqldump -u root -p database | gzip > backup.sql.gz
恢复
# 恢复数据库
mysql -u root -p database < backup.sql
# 从压缩文件恢复
gunzip < backup.sql.gz | mysql -u root -p database
性能监控
-- 查看进程
SHOW PROCESSLIST;
SHOW FULL PROCESSLIST;
-- 查看状态
SHOW STATUS;
SHOW GLOBAL STATUS LIKE 'Threads%';
SHOW GLOBAL STATUS LIKE 'Connections';
-- 查看变量
SHOW VARIABLES LIKE 'max_connections';
SHOW VARIABLES LIKE '%buffer%';
-- 慢查询
SHOW VARIABLES LIKE 'slow_query%';
SHOW GLOBAL STATUS LIKE 'Slow_queries';
常见场景
场景 1：排查慢查询
-- 开启慢查询日志
SET GLOBAL slow_query_log = 'ON';
SET GLOBAL long_query_time = 1;
-- 查看慢查询日志位置
SHOW VARIABLES LIKE 'slow_query_log_file';
-- 分析执行计划
EXPLAIN SELECT * FROM table WHERE condition;
EXPLAIN ANALYZE SELECT * FROM table WHERE condition;
场景 2：锁问题排查
-- 查看锁等待
SHOW ENGINE INNODB STATUS\G
-- 查看当前锁
SELECT * FROM information_schema.INNODB_LOCKS;
SELECT * FROM information_schema.INNODB_LOCK_WAITS;
-- 查看事务
SELECT * FROM information_schema.INNODB_TRX;
场景 3：主从复制状态
-- 主库状态
SHOW MASTER STATUS;
-- 从库状态
SHOW SLAVE STATUS\G
-- 关键指标
-- Slave_IO_Running: Yes
-- Slave_SQL_Running: Yes
-- Seconds_Behind_Master: 0
故障排查
| 问题 | 排查方法 |
|---|---|
| 连接数过多 | SHOW PROCESSLIST, 检查 max_connections |
| 查询慢 | EXPLAIN, 检查索引 |
| 锁等待 | SHOW ENGINE INNODB STATUS |
| 复制延迟 | SHOW SLAVE STATUS, 检查网络和负载 |
| 磁盘满 | 检查 binlog, 清理旧日志 |
FAQ
What does the mysql skill do?
MySQL 数据库管理与运维
How do I install mysql?
Run npx skills add https://github.com/chaterm/terminal-skills --skill mysql in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/mysql/ (personal) or .claude/skills/mysql/ (project).
Which AI agents can use mysql?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is mysql safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains mysql?
It is published by chaterm in chaterm/terminal-skills. It has 103 recorded installs.
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