如何修改mysql root()-冯金伟博客园

如何修改mysqlroot密码

进入Mysql数据库命令行有两种方式:

方法一:Mysql命令行客户端包含在Mysql开始菜单中,只需点击并输入root的密码即可进入。

方法二:在DOS模式(CMD模式)下,定位到Mysql安装目录的子目录bin下,调用Mysql进入,即

= = = = = = = = = = = = = = = = = = =下面是命令= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

丙:& # 92;程序

文件& # 92;MySQL & # 92关系型数据库

计算机网络服务器

5.1\bin & gt关系型数据库

-你

进入

密码:

******

= = = = = = = = = = = = = = = = = = =以上是命令= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

使用mysqladmin.exe命令修改Mysql的root密码。

一般Mysql默认的root密码是空。如果之前使用mysqladmin命令而没有设置root密码,可以使用下面的mysqladmin命令修改root密码。

= = = = = = = = = = = = = = = = = = = =下面是命令= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

丙:& # 92;程序

文件& # 92;MySQL & # 92关系型数据库

计算机网络服务器

5.1\bin & gtmysqladmin

-你

-p

密码

123456

进入

密码

丙:& # 92;程序

文件& # 92;MySQL & # 92关系型数据库

计算机网络服务器

5.1\bin & gt关系型数据库

-你

-p123456

= = = = = = = = = = = = = = = = = = =以上是命令= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

如上所述,第一次使用mysqladmin修改root的默认密码时,输入

输入密码,然后使用Mysql命令输入root及其密码进入Mysql命令行。

如果已经设置了Mysql的root密码,现在需要修改它并进入Mysql命令行模式,请输入

= = = = = = = = = = = = = = = = = = =下面是命令= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

丙:& # 92;程序

文件& # 92;MySQL & # 92关系型数据库

计算机网络服务器

5.1\bin & gtmysqladmin

-你

-p123456

密码

丙:& # 92;程序

文件& # 92;MySQL & # 92关系型数据库

计算机网络服务器

5.1\bin & gt关系型数据库

-你

-普罗特

= = = = = = = = = = = = = = = = = = =以上是命令= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

去做吧。

这里使用了Mysql附带的两个命令,mysqladmin.exe和mysql.exe。mysqladmin更改密码的命令格式如下

mysqladmin

-你

-p[旧通行证]

密码

新通行证

注意newpass(旧密码)是可选的。如果root的默认密码是空,则不需要输入。如果需要更改旧密码,请注意旧密码和-p之间不能有空,否则会报错。此外,密码和新密码由空分隔。

mysql命令的格式类似于mysqladmin命令,主要用于输入正确的用户名和密码后进入Mysql命令行模式。格式如下

关系型数据库

-你

-p[密码]

如果不输入密码,输入时会出现Enter。

密码提示。如果root密码是空,则不需要输入密码,此时会出现Enter。

出现密码提示后,按enter键。

mysql如何修改默认字符集编码?

1、更改服务器的编码方式,在终端输入以下命令:mysqld–character-set-server=gbk–collation-server=gbk_chinese_ci;

2、更改某个数据库的编码方式mysql-uroot-p alterdatabasecharactersetgbkcollategbk_chinese_ci;

3、在创建数据库时指定编码:mysql-uroot-p createdatabasedb_namecharactersetgbkcollategbk_chinese_ci;

4、更改某个表的编码方式mysql-uroot-pdb_namealtertabletable_nameconvertto charachtersetgbkcollategbk_chinese_ci;

5、在创建表时指定编码方式mysql-uroot-pdb_namecreatetabletable_name(….)charactersetgbkcollategbk_chinese_ci;

6、更改某行的编码方式mysql-uroot-pdb_namealtertabletable_namemodifycolumn_namevarchar(20)charactersetgbkcollategbk_chinese_ci;

7、在创建列时指定编码方式:</pre><prename=”code”>mysql-uroot-pdb_namecreatetabletable_name(…,col1varchar(20)charactersetgbkcollategbk_chinese_ci,…)charactersetutf8collateutf8_general_ci;

mysql8如何修改密码?

以下以修改test的用户为例说明mysql8修改密码的步骤。

步骤:1、登录mysql

mysql -u root -p

输入登录密码

2、使用mysql数据库

USE mysql

3、修改密码

ALTER USER 'test'@'localhost' IDENTIFIED WITH MYSQL_NATIVE_PASSWORD BY '新密码';

4、验证是否修改成功

mysql -u test -p

输入新密码

mysql root password设置要求?

mysql设置数据库密码常用的有四种方法:

1.用root登陆MySQL终端 mysql>setpassword=password(‘raykaeso‘); mysql>flushprivileges;

2.在MySQL终端中使用GRANT语句 mysql>grantallon*.*to‘root’@’localhost’IDENTIFIEDBY‘raykaeso’withgrantoption; mysql>flushprivileges;

3.在MySQL库user表中直接修改 mysql>usemysql; mysql>updateusersetpassword=password(‘raykaeso’)whereuser=’root'; mysql>flushprivileges; 4、在shell命令行里修改MySQL用户密码 mysqladmin-urootpassword“yourpassword”;