Mysql常用命令

# 查看正在锁的事务
SELECT * FROM INFORMATION_SCHEMA.INNODB_LOCKS;

# 查看等待锁的事务
SELECT * FROM INFORMATION_SCHEMA.INNODB_LOCK_WAITS;

# 查询mysql数据库中存在的进程
select  *  from information_schema.`PROCESSLIST` # show processlist

# 添加用户并赋权
CREATE USER 'ysndev'@'%' IDENTIFIED BY 'ysndev2018';
GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP ON youseniu_dev_maishou.* TO 'ysndev'@'%';
GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP ON youseniu_dev_push.* TO 'ysndev'@'%';
GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP ON youseniu_dev_staff.* TO 'ysndev'@'%';