Средний Квартал кода

MySQL

Самая распространённая open-source база данных в вебе.

MySQL is the open-source database behind WordPress, countless PHP and Laravel apps, and some of the largest sites on the web. You already speak SQL from the SQL track, so this course maps what you know onto MySQL 8.4 LTS and shows where it differs from PostgreSQL: the mysql client, data types, utf8mb4 for Persian text and emoji, InnoDB and its clustered primary key, EXPLAIN, transactions under REPEATABLE READ, upserts with ON DUPLICATE KEY UPDATE, least-privilege users and backups you can actually restore.

Every lesson is short and practical, and the result sets stay tiny, so you can check every answer by eye.

Уроки: 14
Время: 2 ч
Уровень: Средний

Начать курс · Meet MySQL

Уроки этого курса пока на английском.

Бронза доступна
Серебро доступна
Золото закрыта

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Вас ждут три экзамена: бронза, серебро и золото.

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Чему вы научитесь

Connect with the mysql client and find your way around databases and tables
Translate PostgreSQL habits into MySQL: AUTO_INCREMENT, booleans, DATETIME and TIMESTAMP
Store Persian text and emoji safely with utf8mb4
Read EXPLAIN and design indexes around InnoDB's clustered primary key
Use transactions and INSERT ... ON DUPLICATE KEY UPDATE correctly
Create least-privilege users and take backups you can restore

Маршрут

1
Модуль 1
MySQL for SQL people

Where MySQL runs, the mysql client, the data types that differ from PostgreSQL, and utf8mb4.

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2
Модуль 2
Running MySQL well

InnoDB and indexes, transactions, upserts, users and backups.

0 / 6
3
Модуль 3
Next steps

Replication, slow queries, JSON columns and changing big tables without downtime.

0 / 4