MySql The service could not be started解决_MySQL
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MySql The service could not be started解决
MySql安装
由于需要用mySql数据库今天就把它安上了，每次安装软件，数据库总是够我们折腾的，有时出现错误甚至比重装系统还要让人头疼。
今天在安的过程中就不出了很多错误，在重启与重装的反复捣鼓中终于安上了，安完之后才感觉原来是这样，以后卸载软件或者重装应该应该怎么样做。
遇到的小问题
第一个错误是 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax 。
根据问题描述应该是连接服务器过程中输入的字符串语法有些问题，可以查一查MySql数据库连接字符。
并且登录的窗体总是一闪就自动关闭了
这是由于MySql的服务器没有启动，它的command 窗体就会启动会自动关闭，把MySql服务启动即可。
第二个问题是连接数据库时总是拒绝访问，估计是没有登录或者权限不够，或者是数据库建立过程中建了一半出现了问题，没有把默认的root用户创建完整，这种情况只能重装。
查看了一下MySql，是在安装中安了一半而推出导致的
重装步骤
数据库重装以前的版本必须卸载干净否则不能装成功，下面是一些注意点：
在控制面板里面卸载。
安装目录
对于安装目录仅仅找到看见的是不够的，有些问题系统会自动隐藏，需要先到“文件组织”中设置一下，设置成为可见。
由于隐藏文件没有注意到，多重装了一次
在安装数据库时，每种数据库端口号一般已经确定，比例Oracle为1521，MySql为3306，如果提示该端口已被占用，则可以说明存在旧版本数据库没有卸载干净。
注册表
在“管理工具”服务中，有很多的服务，这些服务同注册表里“services”文件夹里内容对应着，需要手动删除相应服务。
也可以按F3，搜索相关值，把有关的都删除掉。
把上面吉几项如果卸载干净，一般是就没事了
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