MySQL is one of the most popular database management systems. In this tutorial we will cover the steps needed to create new MySQL user and grant permissions to it in CentOS 6.4, Debian or Ubuntu platform. Requirements CentOS 6.4, Debian or Ubuntu ins…

How to Create a New User Let’s start by making a new user within the MySQL shell: CREATE USER 'newuser'@'localhost' IDENTIFIED BY 'password'; Sadly, at this point newuser has no permissions to do anything with the databases. In fact, if newuser even…

一.前言 说起来 数据库(Structured Query Language),本站写过很多类似文章. 如: Mysql创建.删除用户 phpMyAdmin 登陆需要密码 记一次裸迁 MySQL 经历 CentOS 下 MySQL DateBasic 抢救 甚至:我还做了一个项目:SQL 中用户建立与权限授予 然而,今天弄信息安全的时候一个 MYSQL 的问题瞬间把握弄懵了.我就在想如果碰到 利用社区开源代码进行二次开发的商业软件,那应该怎么办呢?有哪些具体的操作. 本文针对上述内容做了思考,总…

MySQL 5.6 is GA! Now we have new things to play with and in my personal opinion the most interesting one is the new Global Transaction ID (GTID) support in replication. This post is not an explanation of what is GTID and how it works internally becau…

问题的现象: 错误信息: ERROR 1135 (00000): Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent b 原因分析: 和mysql本身没关系 操作系统连接数太小.(比如centos 6 默认的  max user process只有 1024个.当mysql proce…

本文共两部分: 1. http://dev.tutsplus.com/tutorials/create-a-flash-login-system-using-php-and-mysql-part-1--active-5147 2. http://dev.tutsplus.com/tutorials/create-a-flash-login-system-using-php-and-mysql-e28093-part-2--active-5580…

In this tutorial you will learn the fundamentals of Windows Azure SQL Database administration using the Windows Azure Management portal. If you are new to database administration, you can follow these lessons to learn essential skills in about 30 min…

LinuxCentos7下安装Mysql以及密码修改 引言: 之前都是用Docker或者yum自动安装,这次主要是下载压缩包解压安装,中间也有些小波折,记录如下,以供参考: 1.删除旧的MySQL 检查MariaDB: [root@localhost local]# rpm -qa|grep mariadb mariadb-libs-5.5.65-1.el7.x86_64 删除MariaDB: [root@localhost local]# rpm -e --nodeps mariadb-lib…

show user; select sys_context('userenv','session_user') from dual; select user from dual; 查看所有登录的用户必须为DBA 用户: select username from v$session; sys.system等DBA 用户查看 其他用户(test)中的对象(表): SQL> select * from test.student; 创建一个普通用户都把该用户用起来的流程: 1.创建用户 SQL>cre…

1.准备CentOS7与CentOS5的基础配置 2.在两台虚拟机中配置yum. 3.在CentOS7中安装httpd与php与php-mysql PS:截图时已安装 CentOS7 关闭防火墙与sellinnx systemctl restart httpd setenforce 0 CentOS5关闭 service iptables stop   关闭防火墙 setenforce 0         ,在另一台虚拟机中安装mysql yum install mysql-server -y…