1、隐藏文件夹 C:\programdata2、安全权限，隐藏用户 Network Service需要注意这两点
Reference : http://www.cnblogs.com/xiangxiaodong/archive/2011/02/21/1959589.html 使用举例：select stock_code, concat(substring(date_info, 9, 4), "00") from stock_real order by stock_code;二，mysql字符串操作函
from ------ http://blog.csdn.net/ithomer/article/details/5136982 InnoDB和MyISAM的差别InnoDB和MyISAM是许多人在使用MySQL时最常用的两个表类型，这两个表类型各有优劣，视具体应用而定。基本的差别为：MyISAM类型不支持事务处理等高级处理，而InnoDB类型支持。MyISAM类型的表强调的是性能，其执
CentOS 7.1 版本// 查看 firewalld[root@wode006 sysconfig]# systemctl status firewalldfirewalld.service - firewalld - dynamic firewall daemon Loaded: loaded (/usr/lib/systemd/system/firewalld.se
// 启动MySQL[root@wode006 tools]# systemctl start mysqld// 运行安全设置[root@wode006 ~]# mysql_secure_installationNOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL SERVER
// 查询[root@wode006 yum.repos.d]# yum install mysql已加载插件：fastestmirror, langpacksRepository base is listed more than once in the configurationRepository updates is listed more than once in the configur
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