mysql5.5安装教程：mysql下载与安装
目录第一步：安装前清理环境
第二步：下载Mysql5.5.62安装包
第三步：安装Mysql5.5.62
第四步：Mysql环境变量配置
第五步：启动Mysql数据库服务
本文适合人群：想要学习Mysql数据库的同学
电脑操作系统：windows 7
本文将介绍Mysql5.5.62版本的下载与安装教程，电脑操作系统是win7，废话不多说，直接开始。
第一步：安装前清理环境(如果没有安装过Mysql，略过此步骤)
(1)在控制面板卸载安装失败的Mysql数据库系统(没有安装或者已经卸载略过)
(2)检查C:\ProgramData目录下是否有“Mysql”文件夹，如果有删除。
(3)检查C:\Program Files (x86)和C:\Program Files目录下是否有“Mysql”文件夹，如果有删除。
(4)清除注册表。
·搜索打开注册表编辑器
开始——搜索“regedit”——进入注册表编辑器
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按Ctrl+F，调出速搜框，搜索“Mysql”的注册信息。
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搜索时间较长，需要耐心等待。搜索到后删除，然后继续Ctrl+F查找一下个Mysql注册信息，直到所有Mysql注册信息全部删除，提示“注册表搜索完毕”。
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第二步：下载Mysql5.5.62安装包
下载Mysql5.5.62安装包
Mysql5.5.62百度云盘下载链接：https://pan.baidu.com/s/1xEIFt0VGYTSK9s3iaGqY2Q
提取码：7ckd
如果链接和提取码失效请联系QQ：2217622915。
第三步：开始安装Mysql5.5.62
1、 双击运行“mysql-installer-community-5.5.62.0.msi”文件
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给数据库设置密码。友情提示：密码一定要记好!
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一定要注意这里设置的服务名称，启动和关闭命令都需要用到。
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好了，Mysql5.5.62安装成功。
第四步：Mysql环境变量配置
计算机——右键——属性——高级系统设置——环境变量——用户变量 PATH——编辑
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·在原有的变量值后面增加一个英文分号“;”(如果已经有英文分号就不加了)
·粘贴Mysql数据库bin文件夹的路径(以下默认路径)
C:\Program Files\MySQL\MySQL Server 5.5\bin
·编辑好后，点击确定保存。
第五步：启动Mysql数据库服务
方法一：
计算机——右键——管理——服务和应用程序——服务——Mysql55(你的数据库服务名称)——右键——启动
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找到Mysql的服务名称右键，然后点击启动。(我这里已经启动了)
方法二：
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启动mysql服务命令：
net start + myql服务名称
我安装的mysql数据库名称为mysql55，所以输入：
net stat mysql55
提示：“请求的服务已经启动”
喜欢就关注一下吧。
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