Home Database Mysql Tutorial Windows安装两个mysql数据库步骤_MySQL

Windows安装两个mysql数据库步骤_MySQL

Jun 01, 2016 pm 01:02 PM
database step

由于新旧项目数据库版本差距太大,编码格式不同,引擎也不同,所以只好装两个数据库。

本次安装两个mysql数据库,版本分别是4.0.18,5.5.36。都是可执行文件直接安装。

本机上之前已经安装完5.5.36版本,单个数据库问题不大,一步一步下去便安装完毕。

另一个版本也直接点击下一步一直安装,要注意的地方是,另外找一个目录。比如:

5.5.36: d:\mysql5.5.36\ 4.0.18: d:\mysql4.0.18\

以上在Windows7和Windows Server 2008实验通过。

接下来是第二个数据库4.0.18版本的配置:

1 配置my.ini

进入到安装目录,发现几个my***.cnf文件,找一个做为配置原件。这边使用的是my-medium.cnf,将其改名为my.ini

一共更改三处 -1: 找到如下配置段:
[client]
#password=my_password
port=3306
#socket=MySQL

将其更改为:
[client]
#password=my_password #5.5.36版本已经占用3306这个端口号,所以改为3307
port=3307
#socket=MySQL #设置编码格式,看项目了,是否是使用默认的,不需要的可以直接加#屏蔽
default-character-set=utf8

-2: [mysqld]
port=3306
#socket=MySQL

将其更改为:
[mysqld]
port=3307
#socket=MySQL # 同理,编码格式是否改变看项目需求
#character-set-server=utf8

-3:重点部分 # Uncomment the following rows if you move the MySQL distribution to another
# location
#basedir = d:/mysql/
#datadir = d:/mysql/data/

将其更改为:
# Uncomment the following rows if you move the MySQL distribution to another
# location
basedir = d:/mysql4.0.18/
datadir = d:/mysql4.0.18/data/

2 安装服务

-1: 进入bin目录

打开cmd, 输入一下命令

d: cd mysql4.0.18\bin

-2: 安装mysql服务之前安装的5.5.36版本,使用的是默认的mysql服务名:MySQL 可以打开任务管理器--服务,查看到这个服务。 4.0.18版本需要使用一个新的服务名,这边命名为:mysql4.0.18

进入到bin目录之后,输入以下代码安装服务: mysqld --install mysql4.0.18 --defaults-file='d:\mysql4.0.18\my.ini'

如果运行成功,则会显示Service Successfully installed. 这时候打开任务管理器--服务,可以看到一个mysql4.0.18服务。

3 设置密码

-1: 这时候保持在bin目录中,不要离开。输入以下代码: mysql -u root -P 3307

3307是端口号,如果正常,就连接到数据库了。

-2: 这时候,多了一个mysql符号。输入以下命令,设置密码:
mysql>use mysql;
mysql>update user set password=password('你想设置的密码') where user='root';
mysql>flush privileges;
mysql>quit;

开启和关闭服务:

方法1:可以在任务管理器--服务中找到这个两个mysql服务,右键点击名称,显示启动服务和停止服务。

方法2:打开cmd, 通过net start ***/net stop ***来开启和关闭服务。

net start mysql // 开启mysql5.5.36服务 net stop mysql // 关闭mysql5.5.36服务

net start mysql4.0.18 // 开启mysql4.0.18服务 net stop mysql4.0.18 // 关闭
mysql4.0.18服务

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