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Mysql DBA 20天速成教程_MySQL

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Jun 01, 2016 pm 01:18 PM

stringuserKnowledge

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基本知识
1.mysql的编译安装
2.mysql 第3方存储引擎安装配置方法
3.mysql 主流存储引擎(MyISAM/innodb/MEMORY)的特点
4.字符串编码知识
5.MySQL用户账户管理
6.数据备份/数据入导出
7.mysql 支持的基本数据类型
8.库/表/字段/索引的创建/修改/删除
9.基本sql 语法：select/insert/update/delete，掌握最基本的语法即可，什么inner join,left join的了解就行 mysql的应用场景大多都是高并发访问/业务逻辑简单，join/子查询/视图/触发器基本上不用
10.sql 聚集查询：group by/having
11.如何用explain 分析优化查询
12.常见 sql 优化技巧
a).select xx from yyy limited ...,
b).order by random
c).select count(*) from
13.各种show xxx 指令，大概有20种，每个都尝试用一次
14.show VARIABLES; 大概有240项，逐条看懂，可以打印出来贴墙上
高级操作
1.Mysql 主从同步配置
2.Mysql 双master 配置
3.Mysql 双master+丛库+keepalived 配置高可用数据库
客户端
作为DBA，一定不要用各种GUI工具，mysql自带命令行client才是你的最佳武器
可选项
1.mysql 分区配置，因为限制太多，实际中分表都是程序做
2.高性能 mysql
a).drizzle
b).MariaDB
c).handlersocket,吹牛逼用，实际工作也很难用上，因为性能从来都不是问题，凡是采用各种“ 奇巧淫技”的项目，必然是天坑，人民群众喜闻乐用的产品都是老老实实采用最简单朴素技术实现

ok，耐着性子20天学完，你就能胜任主流互联网公司Mysql DBA工作

吐个槽，我招募过很多DBA，mysql DBA的工作知识就这么些，其他DBA也差不多，看一遍操作一遍你就学会了，基本上不用智商。所谓亿万用户海量计算，哪只是一种经历，你在现场你就会有。DBA只是一个"看门狗"的角色:有事能打电话找到人，出了事故有人可以被罚款，没事就一边凉快去。

互联网让获取知识的成本越来越低，数据库越来越像一个普通软件，你见过浏览器，office需要专人操作么？

所以，DBA不是一个可以承载梦想的职业，年轻人如果想在技术领域有发展，想要“改变世界”，老老实实写代码当程序员去吧

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