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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MySQL索引简介... 1
一、索引分单列索引和组合索引…………………………………………………………………………………&hel ......
1.SELECT USER();
获得当前登陆用户的用户名与主机信息，使用该命令会显示类似于如下信息：root@zxj.lest.vicp.cc，@前面是用户名，后面是主机名。
2.SHOW用法，
SHOW DATABASES--显示多少个数据库，也可以叫做表空间。
SHOW TABLES--显示有多少个表。
SHOW VARIABLES--显示数据库变量。
SHOW MASTER STATUS.
SHOW C ......
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 ......
简易脚本
方便备份MySQL
数据库
@echo off
echo.
echo MySQL数据库备份
echo *****************************
echo.
echo 今天是 %date%
echo 时间是 %time%
echo.
echo *****************************
set "Ymd=%date:~,4%%date:~5,2%%date:~8,2%"
md "E:\%Ymd% ......
TO_DAYS(date) //给定一个日期，返回从0年开始的天数。
from_DAYS(N) //给定一个天数，返回一个日期。
如：
select TO_DAYS('1997-10-7') //返回729669
select from_DAYS(729669) //返回1997-10-7
UNIX_TIMESTAMP(), UNIX_TIMESTAMP(date)
若无参数调用，则返 ......
