MySQL

mysqldump备份数据库

备份实例下的所有库

mysqldump -uroot -p -A > all.sql

备份单个指定数据库

mysqldump -uroot -p test > test.sql

备份多个指定数据库

mysqldump -uroot -p test1 test2 > test12.sql

备份指定数据库中的单个表

mysqldump -uroot -p test user > test.user.sql

备份指定数据库中的多个表

mysqldump -uroot -p test user role > test.ur.sql

备份数据库表结构只包含DDL语句

# --no-data 或 -d
mysqldump -uroot -p test --no-data > test.sql

备份数据库带库名

mysqldump -uroot -p -B test > test.sql

Windows 下安装绿色版

先下载MySQL :: Download MySQL Community Server

解压下载好的压缩包
解压后得到
新建一个 my.ini文件

解压后的mysql根目录下没有my.ini文件，自己去网上找一份就可或者使用我在后面给出的代码。.ini文件会在初始化mysql中用到

# For advice on how to change settings please see
# http=//dev.mysql.com/doc/refman/5.7/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]

# 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
port = 3306 
# These are commonly set, remove the # and set as required.
basedir="D:\app\mysql-5.7.43-winx64"
datadir="D:\app\mysql-5.7.43-winx64\data"
# server_id = .....
character_set_server = utf8

# 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ini配置文件中的安装目录和数据存放目录修改为mysql文件的路径
#设置mysql的安装目录 basedir=D:\app\mysql-5.7.43-winx64 #设置mysql数据库的数据的存放目录 datadir=D:\app\mysql-5.7.43-winx64\data
打开cmd，初始化数据库
```
mysqld --initialize 
```
初始化完成后，mysqld根目录下会自动新增data文件夹
打开data文件夹，找到.err后缀文本打开

找到文件password位置，红色框中为数据库初始化密码，后续修改初始化密码使用

2023-10-07T04:37:02.330654Z 1 [Note] A temporary password is generated for root@localhost: (iw?Mw:Vs7n&

安装数据库
```
mysqld --install
```
启动服务
```
net start mysql
```
关闭服务
```
net stop mysql
```

修改初始密码

mysql -uroot -p'你的初始密码，步骤4中红框里的字符'

修改密码为 123456

 ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'root';

服务卸载
```
net stop mysql
mysqld --remove
```

4.7 KiB Raw Blame History Unescape Escape

MySQL

mysqldump备份数据库

备份实例下的所有库

备份单个指定数据库

备份多个指定数据库

备份指定数据库中的单个表

备份指定数据库中的多个表

备份数据库表结构只包含DDL语句

备份数据库带库名

Windows 下安装 绿色版

4.7 KiB

Raw Blame History

Windows 下安装绿色版