mysql 8.0.23密码更新方法

ubuntu20.0安装MYSQL 最新版本

https://blog.csdn.net/weixin_38924500/article/details/106261971

[https://blog.csdn.net/weixin_38436044/article/details/113745827](https://blog.csdn.net/weixin_38436044/article/details/113745827) 8.0.23-0ubuntu0.20.10.1 MYSQL 更新ROOT密码 已经修改了方法 ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '123'; create database test charset=utf8 my.cnf 增加以下配置 支持UTF-8 !includedir /etc/mysql/conf.d/ !includedir /etc/mysql/mysql.conf.d/ [mysqld] collation-server=utf8_unicode_ci init-connect='SET NAMES utf8' 基本操作` 

alter table food drop phone; alter table food add phone varchar(20);
alter table food change phone phone varchar(20);
alter table tood modify phone varchar(30); 
create table food(id int primary key,name varchar(20) not null,price float); 
create table food(id int primary key auto_increment,name varchar(20) not null,price float); 
create table food(id int primary key auto_increment,name varchar(20) not null,price float,publisher varchar(30) default 'qinghua';`

create table score(id int primary key auto_increment,sid int, score float,constraint fk_sid foreign key(sid) references student(id));

mysql 8.0    NAVICAT连接不上因为   加密规则变了     两种方法   1  更新NAVICAT驱动，   2 更改MYSQL加密规则      下面是第二种方法 

ALTER USER 'root'@'localhost' IDENTIFIED BY 'password' PASSWORD EXPIRE NEVER; 

ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY 'password'; 

flush privileges;