mysql 数据库卸载不完全，配置出错解决办法
The security settings could not be applied to the database because the connection has failed with the following error.
Error Nr. 2003
Can't connect to MySQL server on 'localhost' (10061)
If a personal firewall is running on your machine, please make sure you have opened the TCP port 3306 for connections. Otherwise no client application can connect to the server. After you have opened the port please press [Retry] to apply the security settings.
If you are re-installing after you just uninstalled the MySQL server please note that the data directory was not removed automatically. Therefore the old password from your last installation is still needed to connect to the server. In this case please select skip now and re-run the Configuration Wizard from the start menu.
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The security settings could not be applied to the database because the connection has failed with the following error.
Error Nr. 1045
Access denied for user 'root'@'localhost' (using password: YES)
If a personal firewall is running on your machine, please make sure you have opened the TCP port 3306 for connections. Otherwise no client application can connect to the server. After you have opened the port please press [Retry] to apply the security settings.
If you are re-installing after you just uninstalled the MySQL server please note that the data directory was not removed automatically. Therefore the old password from your last installation is still needed to connect to the server. In this case please select skip now and re-run the Configuration Wizard from the start menu.
MySQL 5.1 安装过程中报apply security setting错误的解决办法
1, 卸载MySQL
2, 删除目录 C:\Documents and Settings\All Users\Application Data\MySQL
3, 重新安装MySQL 就 OK 啦
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[MySQL] Could not start the service MySQL 解决方法
安装mysql 5.1.33,在运行Server Instance Configuration wizard时的Execut
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测试环境：mysql 5.0.45
【注：可以在mysql中通过mysql> SELECT VERSION();来查看数据库版本】
整理：leo
一、连接MYSQL。
格式： mysql -h主机地址 -u用户名 －p用户密码
1、连接到本机上的MYSQL。
首先打开DOS窗口，然后进入目录mysql\bin，再键入命令mysql -u root -p，回车后提示你输密码.注意用户名前可以有� ......
介绍：
mysql sha1
a。 1 -- 11位 数字
b。 1 -- 8位 小写字母
c。 1 -- 8位 小写字母 + 数字
d。 1 -- 7位 字母 + 数字 + 符号
e。 1 -- 8位大写字母
还在继续生成中,真佩服奶头这孩子弄了好几个月了。
下载地址
http://down.5luyu.cn ......
今天建一个UTF-8的表，其中三列都用了varchar这个数据类型，问题就这么来了，我的三个字段长度加起来超过了65535字节。以前以为每一个字段最大为65535，想不到一个表共享65535字节。意思是说三个字段长度加起来不能超过65535，而采用UTF-8的话，一个字符是占三个字节的。即三字段加起来的总 ......
MySQL支持大量的列类型，它可以被分为3类：数字类型、日期和时间类型以及字符串(字符)类型。本节首先给出可用类型的一个概述，并且总结每个列类型的存储需求，然后提供每个类中的类型性质的更详细的描述。概述有意简化，更详细的说明应该考虑到有关特定列类型的附加信息，例如你能为其指定值的允许格式。
由MySQL支持的列 ......
用ADO操作MYSQL数据库 VBE中请确定引用 microsoft activeX data objects xx 库连接及更新MYSQL数据库数据
代码如下: Sub updt() Dim strconnt As String strconnt = "" Set connt = New ADODB.Connection Dim sevip, Db, user, pwd As String '设服务器地址、所连数据，及登录用户密码 sevip = "localhost" '"192.168.*.* ......
