# 登录
mysql -u root -p
# 创建数据库
create database dev
# 查看
show databases
# 创建用户/schema
insert into mysql.user(Host,User,Password) values("localhost","dev",password("dev"));
# 刷新
flush privileges;
# 数据库给用户复权
grant all privileges on dev.* to dev@localhost identified by "dev";
# 刷新
flush privileges;
完成