MYSQL的安装与卸载以及密码的修改(已知原密码)

最新推荐文章于 2022-03-19 17:01:59 发布

seamanjt

最新推荐文章于 2022-03-19 17:01:59 发布

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分类专栏：数据库

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本文详细介绍了MySQL数据库的安装步骤，包括服务安装与启动、卸载操作及密码修改方法，并提供了默认配置文件与修改后的配置文件示例，帮助读者更好地理解和配置MySQL。

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安装

1.cmd中进入mysql的bin文件夹下

2.输入命令mysqld install mysql --defaults-file="my.ini文件目录"

3.net start mysql启动服务

卸载

1.cmd中进入mysql的bin文件夹下

2.输入命令mysqld remove mysql

密码修改

假设原密码为12345678,新密码为admin

1.cmd中进入mysql的bin文件夹下

2.用原密码登录，输入命令mysql -uroot -p12345678

3.use mysql

4.update user set password=PASSWORD('admin') where user='root';

5.flush privileges;

最后给出原配置文件和修改后的配置文件

源配置文件my~default.ini

# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html
# *** DO NOT EDIT THIS FILE. It's a template which will be copied to the
# *** default location during install, and will be replaced if you
# *** upgrade to a newer version of MySQL.

[mysqld]

# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M

# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin

# These are commonly set, remove the # and set as required.
# basedir = .....
# datadir = .....
# port = .....
# server_id = .....


# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M 

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

修改后的配置文件my.ini

# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html
# *** DO NOT EDIT THIS FILE. It's a template which will be copied to the
# *** default location during install, and will be replaced if you
# *** upgrade to a newer version of MySQL.

[client]
port=3306
default-character-set=utf8
[mysqld]
port=3306
character-set-server=utf8


# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M

# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin

# These are commonly set, remove the # and set as required.
# basedir = .....
# datadir = .....
# port = .....
# server_id = .....
basedir=D:\work_files\mysql
datadir=D:\work_files\mysql\data

# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M 
[WinMySQLAdmin]
Server=D:\work_files\mysql\bin\mysqld.exe
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES