Complete MySQL Database Administration Course

MySQL DBA Training to get your Dream IT Job
4.48 (1513 reviews)
Udemy
platform
English
language
Databases
category
instructor
Complete MySQL Database Administration Course
10 293
students
28 hours
content
Oct 2024
last update
$22.99
regular price

Why take this course?

在这个概述中,你已经涵盖了MySQL数据库的广泛知识范围,从数据和数据库的基础概念到高级主题如重plication和性能监控。以下是对每个部分的简要回顾和一些详细信息:

Section 5: Data Storage and MySQL Engines

  • Data and Database: Data是存储在数据库中的信息,而数据库是用于组织、查询和管理数据的系统。
  • MySQL Storage Engine and Types: MySQL提供多种存储引擎,如InnoDB(支持事务),MyISAM(不支持事务,适合读密集型应用)等。
  • Table, COLUMN and ROW: 数据是以表的形式存储的,每张表由多个列组成,每行代表一条记录。
  • Key: 键在数据库中用于唯一标识记录,确保数据的完整性和参照完整性。主键(Primary Key)、外键(Foreign Key)和唯一约束(Unique Key)是不同类型的键。

Section 6: SQL Statements

  • DML (Data Manipulation Language) Statements: 用于对数据库中的数据进行操作的语句,如INSERT、UPDATE、DELETE和SELECT。
  • DDL (Data Definition Language) Statements: 用于定义数据库对象(如表)的语句,如CREATE、ALTER和DROP。
  • DCL (Data Control Language) Statements: 用于控制数据库对象的访问权限的语句,如GRANT和REVOKE。
  • TCL (Transaction Control Language) Statements: 用于管理事务的语句,如开始、提交或回滚事务。

Section 7: Advanced SQL Operations

  • SELECT Statement: 用于从数据库中检索数据的语句,它可以包括各种操作符、条件和聚合函数。
  • Joins: 用于连接两个或多个表的SQL操作,包括INNER JOIN、LEFT JOIN、RIGHT JOIN和CROSS JOIN等。
  • Sub Query: 在另一个查询中使用的嵌套查询,可以是korner(在WHERE子句中)或inner(在FROM或SUBQUERY中)。

Section 8: Optimization and Indexing

  • Query Optimization: 对SQL查询进行优化以提高性能和效率。使用EXPLAIN语句和执行计划可以帮助理解查询的执行路径。
  • Indexes: 数据库索引可以大幅提高数据检索速度,但也会占用空间并降低插入、更新和删除操作的速度。

Section 9: Data Types and Functions

  • Data Types: MySQL支持多种数据类型,包括整数、浮点数、字符串等。
  • Functions: MySQL提供了广泛的内置函数,可以用于数据操作、日期和时间计算、字符串处理等。

Section 10: Performance Tuning and Monitoring

  • Performance Tuning: 对MySQL配置进行调整以提高性能,包括缓存大小、排序缓冲区大小等。
  • Monitoring Tools: 如mysqldumpmysqladmintop等工具可以用来监控MySQL服务器的性能状态。

Section 11: Replication and High Availability

  • Replication: 数据库复制是一种技术,允许数据的自动备份到另一个服务器,这样在一个节点失败时可以快速恢复。
  • Master-Slave Replication: Master节点负责处理所有的写操作,而Slave节点则复制Master的变化并应用到自己的数据库中。
  • Replication Lag: 在复制过程中可能会发生延迟,即Slave相对于Master稍微落后的情况。

Section 12: Security and User Management

  • Security: MySQL提供了账户和权限系统来保护数据。
  • User Management: 可以使用CREATE USERALTER USERDROP USER等语句来管理数据库用户。
  • Privileges and Roles: MySQL的安全模型基于账户和权限,允许对数据库的访问进行细粒度控制。

这个概述提供了一个全面的视角来理解MySQL数据库的各个方面。实际应用中,你需要根据具体情况和性能指标来调整配置和优化策略,以确保MySQL服务器的高效运行和数据的安全性。

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Comidoc Review

Our Verdict

The Complete MySQL Database Administration Course on Udemy is an effective starting point for those interested in data analysis and business intelligence roles seeking hands-on experience with MySQL. Though it may lack depth in certain areas, its practical exercises and engaging delivery style make up for it. Despite some reported technical issues, the course offers valuable insights and practical knowledge for aspiring SQL developers, Business Analysts, and Business Intelligence professionals.

What We Liked

  • The course provides a comprehensive coverage of MySQL, from fundamentals to advanced topics, with clear explanations for better comprehension.
  • It stands out with its practical approach, offering hands-on exercises, real-world examples, and troubleshooting techniques that prepare learners for real-life challenges.
  • The instructor delivers content in an engaging manner, building a strong foundation for database management through systematic progression from one section to another.
  • A wide range of topics are covered including SQL queries, Linux-based administration, and essential aggregate functions—all crucial for data analysis and business intelligence career paths.

Potential Drawbacks

  • The course does not cover the internals of MySQL extensively, which might be a drawback for those seeking in-depth knowledge on this particular subject.
  • There have been reports concerning technical issues like video quality, missing screens, and audio problems affecting overall user experience.
  • Some learners find that some crucial aspects are not emphasized enough or lack the detail they would expect from an expert level course, such as performance evaluation techniques for a company's database.
4323756
udemy ID
28/09/2021
course created date
02/07/2022
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