# 修改root密码n
set password for root@localhost = password('新密码');
# 创建用户赋权限n
GRANT ALL PRIVILEGES ON *.* TO '1111'@'%' IDENTIFIED BY '111';
# 登录数据库n
mysql -u root -p
# 创建数据库n
create database [database_name]
# 删除数据库n
drop database [database_name]
# 查看数据库n
show databases
# 查看数据库类型n
help data type
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